compose-rust 0.0.1

Declarative UI in Rust, rendered by an AOT-compiled Compose Multiplatform engine.
Documentation
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// Generated by `cargo run -p compose-rust --bin codegen`. DO NOT EDIT.

package dev.darkpyonix.composerust.protocol

import java.nio.ByteBuffer
import java.nio.ByteOrder
import java.nio.charset.StandardCharsets

enum class WidgetKind { Column, Row, Box, Text, TextField, Button, Spacer, LazyColumn, ScrollColumn, Image, Icon, Checkbox, RadioButton, Switch, Slider, ProgressIndicator, Divider, Card, Surface, Dialog, Menu, Tabs, TopAppBar, LazyRow, Tooltip, Canvas, DatePicker, TimePicker, Dropdown, Navigation, NavigationItem, Sheet, Scaffold, ScaffoldSlot, LazyGrid, FileDropTarget, ScrollRow, Chip, FloatingAction, Badge, SelectionContainer, SplitPane, LinearProgressIndicator }

enum class PropertyKind { Text, Placeholder, Enabled, Multiline, OnClick, OnValueChange, OnSubmit, OnFocusLost, OnKeyDown, ItemCount, ItemKey, OnRangeRequested, TypeRole, FontSize, FontWeight, LineHeight, LetterSpacing, Color, TextAlign, MaxLines, Overflow, Arrangement, Spacing, SpaceRole, Alignment, Variant, Asset, Checked, Steps, Determinate, Circular, Vertical, Open, OnDismiss, SelectedIndex, Commands, Value, Min, Max, Icon, Slot, Columns, MinColumnWidth, Spans, OnFilesEntered, OnFilesDropped, Section, Count, Collapsible, Progress }

enum class Key { Enter }

enum class WindowSizeClass { Compact, Medium, Expanded }

enum class WindowHeightClass { Compact, Medium, Expanded }

enum class ColorRole { Primary, OnPrimary, Secondary, OnSecondary, Surface, OnSurface, SurfaceVariant, OnSurfaceVariant, Background, OnBackground, Outline, OutlineVariant, Error, OnError, SurfaceContainer, Tertiary, OnTertiary, PrimaryContainer, OnPrimaryContainer, SecondaryContainer, OnSecondaryContainer, TertiaryContainer, OnTertiaryContainer, SyntaxKeyword, SyntaxString, SyntaxComment, SyntaxNumber, SyntaxConstant, SyntaxType, SyntaxFunction, SyntaxVariable, SyntaxProperty, SyntaxOperator, SyntaxPunctuation, SyntaxTag, SyntaxAttribute, SyntaxEscape, SyntaxMacro, DiffAdded, DiffRemoved, DiffModified, DiffAddedContainer, DiffRemovedContainer, DiffAddedEmphasis, DiffRemovedEmphasis }

enum class TypeRole { Display, Headline, Title, Subtitle, Body, BodyStrong, Label, Caption, Mono }

enum class ShapeRole { None, ExtraSmall, Small, Medium, Large, Full }

enum class MotionRole { Instant, Quick, Standard, Slow, Emphasized }

enum class TileMode { Clamp, Repeat, Mirror }

enum class MaterialRole { Thin, Regular, Thick, Chrome }

enum class SpaceRole { None, Xs, Sm, Md, Lg, Xl, Xxl }

enum class TextAlign { Start, Center, End, Justify }

enum class TextOverflow { Clip, Ellipsis, Visible }

enum class Arrangement { Start, Center, End, SpaceBetween, SpaceAround, SpaceEvenly }

enum class Alignment { TopStart, TopCenter, TopEnd, CenterStart, Center, CenterEnd, BottomStart, BottomCenter, BottomEnd }

enum class ButtonVariant { Filled, Tonal, Outlined, Text, Operator }

enum class DesignSystem { Material3, Cupertino, Fluent, Gnome, Breeze, Deepin, LiquidGlass }

enum class ColorScheme { Light, Dark, FollowSystem }

enum class AssetKind { Png, Jpeg, Svg, VectorIcon, Font, Brush }

enum class IconRole { Back, Forward, Close, Search, Add, Check, Settings, More, Home, List, Inbox, Menu, History, Send, Mic, Image, Video, Library, Sidebar, Compose, Collapse }

enum class MessageDuration { Short, Long }

enum class Chrome { Modern, System }

enum class TitleBar { Normal, Simple }

enum class SlotRole { TopBar, BottomBar, FloatingAction, Content }

enum class NotificationImportance { Normal, Urgent }

enum class NotificationPresentation { Always, WhenInactive }

enum class NotificationPermission { NotDetermined, Granted, Denied, Unsupported }

enum class LoopMode(val wire: Byte) {
    /** The Renderer runs the loop and the Host blocks inside it. Desktop. */
    Renderer(0),

    /** The platform owns the process and the loop. Android, iOS and the web. */
    Platform(1),
}

sealed interface Paint {
    data class Role(val role: ColorRole) : Paint

    /** A literal 0xAARRGGBB colour. */
    data class Literal(val argb: Int) : Paint

    /**
     * A registered brush: a gradient, or a picture laid out as a fill.
     *
     * An id, because a list of stops does not fit the two words a paint has and because a
     * brush has to outlive the frame that draws it.
     */
    data class Asset(val assetId: Int) : Paint
}

data class Theme(
    val designSystem: DesignSystem,
    val fallback: DesignSystem,
    val colorScheme: ColorScheme,
    val adaptive: Boolean,
    /**
     * The font asset each type role resolves to, indexed by the role's ordinal, with zero
     * where the role keeps the system font.
     *
     * Per theme rather than per node: an application changes what a role is made of and
     * every piece of text in that role changes with it. A node that could name a font
     * would be a node deciding typography.
     */
    val fonts: List<Int> = List(TypeRole.entries.size) { 0 },
    /**
     * The application's own colours, laid over whichever design system this resolves to.
     *
     * Both schemes arrive together, so a switch between light and dark is answered from
     * here and never asks the Host. Empty where the application gave none.
     */
    val palette: List<PaletteEntry> = emptyList(),
    /**
     * What was wrong with entries the palette arrived with, one sentence each.
     *
     * Those entries are already left out of [palette] and the rest of it stands. Whoever
     * applies the theme reports each of these as a protocol error: a theme is never thrown
     * away whole for one bad entry, because that would open the application with no colours
     * at all.
     */
    val paletteProblems: List<String> = emptyList(),
) {

    /** The font asset for [role], or null where the role keeps the system font. */
    fun font(role: TypeRole): Int? = fonts.getOrNull(role.ordinal)?.takeIf { it != 0 }

    /** The colour the application gave [role] in this scheme, as 0xAARRGGBB, or null. */
    fun paletteColor(role: ColorRole, dark: Boolean): Int? =
        palette.firstOrNull { it.role == role && it.dark == dark }?.argb
}

/** One role's colour in one scheme, as the application gave it. */
data class PaletteEntry(val role: ColorRole, val dark: Boolean, val argb: Int)

/**
 * What the application asked of its own window.
 *
 * A zero measurement means the application did not ask, so the choice is the Renderer's.
 * This arrives in the first batch, which the Renderer reads before it stands the window
 * up; a platform where the window is not ours ignores it.
 */
data class Window(
    val chrome: Chrome,
    /**
     * Which of the two title bars this window has.
     *
     * `Chrome` says who draws the caption; this says, inside that, what kind of window the
     * caption belongs to. What it is worth in pixels is this side's answer: on macOS how
     * far in the buttons sit and how round the window is, on Windows and Linux how tall
     * the caption is.
     */
    val titleBar: TitleBar,
    /**
     * What the window calls itself.
     *
     * Empty means the application said nothing and the renderer uses its own name. A
     * desktop lists windows by this, so a window with no title of its own is listed
     * under whatever the renderer happened to be called.
     */
    val title: String,
    /**
     * The picture the window wears, as an asset id, or zero for none.
     *
     * An id rather than a path or a name: a path is a fact about the machine the
     * application was built on, and a name asks the toolkit to find something it may not
     * have. Zero leaves the toolkit's own icon, which is what every window here wore
     * until this existed.
     */
    val icon: Int,
    val width: Int,
    val height: Int,
    val minWidth: Int,
    val minHeight: Int,
    val resizable: Boolean,
)

sealed interface PropertyValue {
    data object None : PropertyValue
    data class Text(val value: String) : PropertyValue
    data class Bool(val value: Boolean) : PropertyValue
    data class Integer(val value: Long) : PropertyValue
    data class Float(val value: kotlin.Float) : PropertyValue
    class Bytes(val value: ByteArray) : PropertyValue
}

/**
 * One drawing command. Coordinates are dp from the Canvas's top-left corner.
 *
 * Colour is a [Paint], so a command may name a ColorRole and the design system
 * decides what it looks like.
 */
sealed interface DrawCommand {
    val paint: Paint

    data class Line(override val paint: Paint, val x1: kotlin.Float, val y1: kotlin.Float, val x2: kotlin.Float, val y2: kotlin.Float, val strokeWidth: kotlin.Float) : DrawCommand
    data class Rect(override val paint: Paint, val x: kotlin.Float, val y: kotlin.Float, val width: kotlin.Float, val height: kotlin.Float, val strokeWidth: kotlin.Float) : DrawCommand
    data class RoundRect(override val paint: Paint, val x: kotlin.Float, val y: kotlin.Float, val width: kotlin.Float, val height: kotlin.Float, val radius: kotlin.Float, val strokeWidth: kotlin.Float) : DrawCommand
    data class Circle(override val paint: Paint, val centerX: kotlin.Float, val centerY: kotlin.Float, val radius: kotlin.Float, val strokeWidth: kotlin.Float) : DrawCommand
    data class Arc(override val paint: Paint, val centerX: kotlin.Float, val centerY: kotlin.Float, val radius: kotlin.Float, val startDegrees: kotlin.Float, val sweepDegrees: kotlin.Float, val strokeWidth: kotlin.Float) : DrawCommand
    data class PolylineRef(override val paint: Paint, val assetId: Int, val strokeWidth: kotlin.Float) : DrawCommand
    data class TextAt(override val paint: Paint, val textOffset: Int, val textLength: Int, val x: kotlin.Float, val y: kotlin.Float, val typeRole: TypeRole) : DrawCommand
}

/** Decodes a Canvas command list: fixed-size records, then the TextAt strings. */
object DrawCommands {
    const val COMMAND_LENGTH = 36

    fun decode(bytes: ByteArray): List<DrawCommand> {
        val buffer = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN)
        val commands = ArrayList<DrawCommand>(bytes.size / COMMAND_LENGTH)
        var offset = 0
        while (offset + COMMAND_LENGTH <= bytes.size) {
            val tag = buffer.getShort(offset).toInt() and 0xffff
            val length = buffer.getShort(offset + 2).toInt() and 0xffff
            // The text region starts where the records stop decoding, so an unreadable
            // record ends the list rather than failing the whole batch.
            if (length != COMMAND_LENGTH) break
            val paintBits = buffer.getLong(offset + 4)
            val kind = (paintBits ushr 32).toInt()
            if (kind != 1 && kind != 2) break
            val paint = if (kind == 1) {
                Paint.Role(colorRoleOrNull(paintBits.toInt()) ?: break)
            } else {
                Paint.Literal(paintBits.toInt())
            }
            fun word(index: Int): Int = buffer.getInt(offset + 12 + index * 4)
            fun real(index: Int): kotlin.Float = kotlin.Float.fromBits(word(index))
            val command = when (tag) {
                1 -> DrawCommand.Line(paint, real(0), real(1), real(2), real(3), real(4))
                2 -> DrawCommand.Rect(paint, real(0), real(1), real(2), real(3), real(4))
                3 -> DrawCommand.RoundRect(paint, real(0), real(1), real(2), real(3), real(4), real(5))
                4 -> DrawCommand.Circle(paint, real(0), real(1), real(2), real(3))
                5 -> DrawCommand.Arc(paint, real(0), real(1), real(2), real(3), real(4), real(5))
                6 -> DrawCommand.PolylineRef(paint, word(0), real(1))
                7 -> DrawCommand.TextAt(paint, word(0), word(1), real(2), real(3), typeRoleOrNull(word(4)) ?: break)
                else -> break
            }
            commands.add(command)
            offset += COMMAND_LENGTH
        }
        return commands
    }

    /** The string a TextAt points at, measured from the start of the list. */
    fun textOf(bytes: ByteArray, command: DrawCommand.TextAt): String {
        val end = command.textOffset.toLong() + command.textLength.toLong()
        if (command.textOffset < 0 || command.textLength < 0 || end > bytes.size.toLong()) {
            return ""
        }
        return String(bytes, command.textOffset, command.textLength, StandardCharsets.UTF_8)
    }

    private fun typeRoleOrNull(tag: Int): TypeRole? = when (tag) {
        1 -> TypeRole.Display
        2 -> TypeRole.Headline
        3 -> TypeRole.Title
        4 -> TypeRole.Subtitle
        5 -> TypeRole.Body
        6 -> TypeRole.BodyStrong
        7 -> TypeRole.Label
        8 -> TypeRole.Caption
        9 -> TypeRole.Mono
        else -> null
    }

    private fun colorRoleOrNull(tag: Int): ColorRole? = when (tag) {
        1 -> ColorRole.Primary
        2 -> ColorRole.OnPrimary
        3 -> ColorRole.Secondary
        4 -> ColorRole.OnSecondary
        5 -> ColorRole.Surface
        6 -> ColorRole.OnSurface
        7 -> ColorRole.SurfaceVariant
        8 -> ColorRole.OnSurfaceVariant
        9 -> ColorRole.Background
        10 -> ColorRole.OnBackground
        11 -> ColorRole.Outline
        12 -> ColorRole.OutlineVariant
        13 -> ColorRole.Error
        14 -> ColorRole.OnError
        15 -> ColorRole.SurfaceContainer
        16 -> ColorRole.Tertiary
        17 -> ColorRole.OnTertiary
        18 -> ColorRole.PrimaryContainer
        19 -> ColorRole.OnPrimaryContainer
        20 -> ColorRole.SecondaryContainer
        21 -> ColorRole.OnSecondaryContainer
        22 -> ColorRole.TertiaryContainer
        23 -> ColorRole.OnTertiaryContainer
        24 -> ColorRole.SyntaxKeyword
        25 -> ColorRole.SyntaxString
        26 -> ColorRole.SyntaxComment
        27 -> ColorRole.SyntaxNumber
        28 -> ColorRole.SyntaxConstant
        29 -> ColorRole.SyntaxType
        30 -> ColorRole.SyntaxFunction
        31 -> ColorRole.SyntaxVariable
        32 -> ColorRole.SyntaxProperty
        33 -> ColorRole.SyntaxOperator
        34 -> ColorRole.SyntaxPunctuation
        35 -> ColorRole.SyntaxTag
        36 -> ColorRole.SyntaxAttribute
        37 -> ColorRole.SyntaxEscape
        38 -> ColorRole.SyntaxMacro
        39 -> ColorRole.DiffAdded
        40 -> ColorRole.DiffRemoved
        41 -> ColorRole.DiffModified
        42 -> ColorRole.DiffAddedContainer
        43 -> ColorRole.DiffRemovedContainer
        44 -> ColorRole.DiffAddedEmphasis
        45 -> ColorRole.DiffRemovedEmphasis
        else -> null
    }

}

/**
 * One run of different treatment inside a Text's string, as the Host wrote it.
 *
 * Offsets are bytes of the string's UTF-8, because that is what the string is measured in
 * on the side that wrote them. A null paint is a run that says nothing about that colour.
 */
data class TextSpanRecord(
    val start: Int,
    val length: Int,
    val typeRole: TypeRole?,
    val color: Paint?,
    /** What is painted behind this run's letters only. */
    val background: Paint?,
    val bold: Boolean,
    val italic: Boolean,
    val underline: Boolean,
    val strikethrough: Boolean,
    /** The handler a press on this run reports to, or zero where it is not a link. */
    val handlerId: Long,
)

/** Decodes the run list a Text carries in its `Spans` property. */
object SpanRecords {
    const val SPAN_LENGTH = 36
    private const val START_AT = 0
    private const val LENGTH_AT = 4
    private const val ROLE_AT = 8
    private const val FLAGS_AT = 10
    private const val COLOR_AT = 12
    private const val BACKGROUND_AT = 20
    private const val HANDLER_AT = 28
    private const val FLAG_BOLD = 1
    private const val FLAG_ITALIC = 2
    private const val FLAG_UNDERLINE = 4
    private const val FLAG_STRIKETHROUGH = 8

    /** The runs in [bytes], or null where it is not a whole number of records. */
    fun decode(bytes: ByteArray): List<TextSpanRecord>? {
        if (bytes.size % SPAN_LENGTH != 0) return null
        val buffer = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN)
        return List(bytes.size / SPAN_LENGTH) { index ->
            val at = index * SPAN_LENGTH
            val flags = buffer.getShort(at + FLAGS_AT).toInt() and 0xffff
            TextSpanRecord(
                start = buffer.getInt(at + START_AT),
                length = buffer.getInt(at + LENGTH_AT),
                typeRole = typeRoleOrNull(buffer.getShort(at + ROLE_AT).toInt() and 0xffff),
                color = paintOrNull(buffer.getLong(at + COLOR_AT)),
                background = paintOrNull(buffer.getLong(at + BACKGROUND_AT)),
                bold = flags and FLAG_BOLD != 0,
                italic = flags and FLAG_ITALIC != 0,
                underline = flags and FLAG_UNDERLINE != 0,
                strikethrough = flags and FLAG_STRIKETHROUGH != 0,
                handlerId = buffer.getLong(at + HANDLER_AT),
            )
        }
    }

    /** A paint, or null for zero and for anything that does not decode. */
    private fun paintOrNull(bits: Long): Paint? {
        val value = bits.toInt()
        return when ((bits ushr 32).toInt()) {
            1 -> colorRoleOrNull(value)?.let { Paint.Role(it) }
            2 -> Paint.Literal(value)
            3 -> Paint.Asset(value)
            else -> null
        }
    }

    private fun colorRoleOrNull(tag: Int): ColorRole? = when (tag) {
        1 -> ColorRole.Primary
        2 -> ColorRole.OnPrimary
        3 -> ColorRole.Secondary
        4 -> ColorRole.OnSecondary
        5 -> ColorRole.Surface
        6 -> ColorRole.OnSurface
        7 -> ColorRole.SurfaceVariant
        8 -> ColorRole.OnSurfaceVariant
        9 -> ColorRole.Background
        10 -> ColorRole.OnBackground
        11 -> ColorRole.Outline
        12 -> ColorRole.OutlineVariant
        13 -> ColorRole.Error
        14 -> ColorRole.OnError
        15 -> ColorRole.SurfaceContainer
        16 -> ColorRole.Tertiary
        17 -> ColorRole.OnTertiary
        18 -> ColorRole.PrimaryContainer
        19 -> ColorRole.OnPrimaryContainer
        20 -> ColorRole.SecondaryContainer
        21 -> ColorRole.OnSecondaryContainer
        22 -> ColorRole.TertiaryContainer
        23 -> ColorRole.OnTertiaryContainer
        24 -> ColorRole.SyntaxKeyword
        25 -> ColorRole.SyntaxString
        26 -> ColorRole.SyntaxComment
        27 -> ColorRole.SyntaxNumber
        28 -> ColorRole.SyntaxConstant
        29 -> ColorRole.SyntaxType
        30 -> ColorRole.SyntaxFunction
        31 -> ColorRole.SyntaxVariable
        32 -> ColorRole.SyntaxProperty
        33 -> ColorRole.SyntaxOperator
        34 -> ColorRole.SyntaxPunctuation
        35 -> ColorRole.SyntaxTag
        36 -> ColorRole.SyntaxAttribute
        37 -> ColorRole.SyntaxEscape
        38 -> ColorRole.SyntaxMacro
        39 -> ColorRole.DiffAdded
        40 -> ColorRole.DiffRemoved
        41 -> ColorRole.DiffModified
        42 -> ColorRole.DiffAddedContainer
        43 -> ColorRole.DiffRemovedContainer
        44 -> ColorRole.DiffAddedEmphasis
        45 -> ColorRole.DiffRemovedEmphasis
        else -> null
    }

    private fun typeRoleOrNull(tag: Int): TypeRole? = when (tag) {
        1 -> TypeRole.Display
        2 -> TypeRole.Headline
        3 -> TypeRole.Title
        4 -> TypeRole.Subtitle
        5 -> TypeRole.Body
        6 -> TypeRole.BodyStrong
        7 -> TypeRole.Label
        8 -> TypeRole.Caption
        9 -> TypeRole.Mono
        else -> null
    }

}

sealed interface Modifier {
    data object Empty : Modifier
    data class Padding(val value: kotlin.Float) : Modifier
    data object FillMaxWidth : Modifier
    data object FillMaxHeight : Modifier
    data class Width(val value: kotlin.Float) : Modifier
    data class Height(val value: kotlin.Float) : Modifier
    data class Size(val width: kotlin.Float, val height: kotlin.Float) : Modifier
    data class Background(val paint: Paint) : Modifier
    data class Clickable(val handlerId: Long) : Modifier
    data class PaddingRole(val role: dev.darkpyonix.composerust.protocol.SpaceRole) : Modifier
    data class PaddingEach(val start: kotlin.Float, val top: kotlin.Float, val end: kotlin.Float, val bottom: kotlin.Float) : Modifier
    data class Weight(val value: kotlin.Float) : Modifier
    data class Shape(val topStart: kotlin.Float, val topEnd: kotlin.Float, val bottomEnd: kotlin.Float, val bottomStart: kotlin.Float) : Modifier
    data class ShapeRole(val role: dev.darkpyonix.composerust.protocol.ShapeRole) : Modifier
    data class Border(val width: kotlin.Float, val paint: Paint) : Modifier
    data class Elevation(val value: kotlin.Float) : Modifier
    data class ObserveSize(val token: Int) : Modifier
    data class Motion(val role: dev.darkpyonix.composerust.protocol.MotionRole) : Modifier
    data class Material(val role: dev.darkpyonix.composerust.protocol.MaterialRole) : Modifier
}

sealed interface Mutation {
    data class Create(val nodeId: Int, val widget: WidgetKind) : Mutation
    data class SetProp(val nodeId: Int, val property: PropertyKind, val value: PropertyValue) : Mutation
    data class SetModifier(val nodeId: Int, val index: Int, val modifier: Modifier) : Mutation
    data class Insert(val parentId: Int, val nodeId: Int, val index: Int) : Mutation
    data class Move(val parentId: Int, val nodeId: Int, val index: Int) : Mutation
    data class Remove(val nodeId: Int) : Mutation
    data class SetText(val nodeId: Int, val text: String, val selectionStart: Int, val selectionEnd: Int) : Mutation
    data class AppendText(val nodeId: Int, val text: String) : Mutation
    data class SetTheme(val theme: Theme) : Mutation
    data class SetWindow(val window: Window) : Mutation

    /**
     * The bytes of one asset. `kind` is the raw wire tag rather than an [AssetKind],
     * because a kind this Renderer cannot read has to be reported as a protocol error by
     * the asset cache instead of stopping the rest of the batch from being applied.
     *
     * `bytes` is already a copy: the batch buffer is only valid for the call that carried
     * it, and an asset has to outlive the frame that draws it.
     */
    data class RegisterAsset(val assetId: Int, val kind: Int, val bytes: ByteArray) : Mutation {
        override fun equals(other: Any?): Boolean =
            this === other ||
                (other is RegisterAsset && assetId == other.assetId && kind == other.kind &&
                    bytes.contentEquals(other.bytes))

        override fun hashCode(): Int =
            (assetId * 31 + kind) * 31 + bytes.contentHashCode()
    }

    data class ReleaseAsset(val assetId: Int) : Mutation

    /**
     * One sentence to say to the user, with an optional thing to do about it.
     *
     * It names no node because it is not in the tree. The Host says it once; how long it
     * stays, where it sits and what happens when a second one arrives while the first is
     * still up are the Renderer's to decide.
     *
     * `handlerId` is 0 when the message has no action, and `action` is then empty.
     */
    data class ShowMessage(
        val handlerId: Long,
        val text: String,
        val action: String,
        val duration: MessageDuration,
    ) : Mutation

    /**
     * One notification to show outside the window.
     *
     * Not a node: it outlives the component that posted it, and when it goes away is up to
     * the user in the notification centre. Posting again under the same `key` replaces it;
     * an empty `key` is named by the Renderer and can be neither replaced nor withdrawn. An
     * empty action label is no button.
     */
    data class PostNotification(
        val key: String,
        val title: String,
        val body: String,
        val channel: String,
        val action1: String,
        val action2: String,
        val importance: NotificationImportance,
        val presentation: NotificationPresentation,
    ) : Mutation

    /** Takes back the notification posted under `key`, if it is still showing. */
    data class WithdrawNotification(val key: String) : Mutation

    /** Asks the platform for permission. The answer comes back as an event. */
    data object RequestNotificationPermission : Mutation
}

sealed interface HostEvent {
    val nodeId: Int
    val handlerId: Long

    data class Clicked(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class TextChanged(override val nodeId: Int, override val handlerId: Long, val text: String) : HostEvent
    data class TextSubmitted(override val nodeId: Int, override val handlerId: Long, val text: String) : HostEvent
    data class FocusLost(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class ProtocolError(override val nodeId: Int, override val handlerId: Long, val code: Int, val message: String) : HostEvent
    data class KeyDown(override val nodeId: Int, override val handlerId: Long, val key: Key, val shiftKey: Boolean, val ctrlKey: Boolean, val altKey: Boolean, val metaKey: Boolean) : HostEvent
    data class RangeRequested(override val nodeId: Int, override val handlerId: Long, val start: Int, val count: Int) : HostEvent
    data class ValueChanged(override val nodeId: Int, override val handlerId: Long, val value: Double) : HostEvent
    data class WindowSizeChanged(override val nodeId: Int, override val handlerId: Long, val widthDp: kotlin.Float, val heightDp: kotlin.Float, val sizeClass: WindowSizeClass, val heightClass: WindowHeightClass) : HostEvent
    data class Resync(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class LifecycleStart(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class LifecycleStop(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class DesignSystemResolved(override val nodeId: Int, override val handlerId: Long, val system: DesignSystem) : HostEvent
    data class FilesEntered(override val nodeId: Int, override val handlerId: Long) : HostEvent
    data class FilesDropped(override val nodeId: Int, override val handlerId: Long, val text: String) : HostEvent
    data class NotificationActivated(override val nodeId: Int, override val handlerId: Long, val action: Int, val key: String) : HostEvent
    data class NotificationPermissionChanged(override val nodeId: Int, override val handlerId: Long, val state: NotificationPermission) : HostEvent
}

class ProtocolException(message: String, val offset: Int) :
    IllegalArgumentException("$message at byte offset $offset")

object Protocol {
    const val SCHEMA_HASH: Long = -6082458096398358368L
    const val PROTOCOL_VERSION: Int = 1

    private const val TAG_ENVELOPE = 0
    private const val TAG_CREATE = 1
    private const val TAG_SET_PROP = 2
    private const val TAG_SET_MODIFIER = 3
    private const val TAG_INSERT = 4
    private const val TAG_MOVE = 5
    private const val TAG_REMOVE = 6
    private const val TAG_SET_TEXT = 7
    private const val TAG_APPEND_TEXT = 8
    private const val TAG_SET_THEME = 9
    private const val TAG_REGISTER_ASSET = 10
    private const val TAG_RELEASE_ASSET = 11
    private const val TAG_SHOW_MESSAGE = 12
    private const val TAG_SET_WINDOW = 13
    private const val TAG_POST_NOTIFICATION = 14
    private const val TAG_WITHDRAW_NOTIFICATION = 15
    private const val TAG_REQUEST_NOTIFICATION_PERMISSION = 16
    private const val ENVELOPE_LENGTH = 12
    /** Four role tags, one font asset id per type role, then the palette's reference. */
    private val THEME_RECORD_LENGTH = 20 + 4 * TypeRole.entries.size

    /** Bytes of one palette entry: a role tag, a scheme tag and a colour. */
    const val PALETTE_ENTRY_LENGTH = 8

    /**
     * The high bit of each of eight bytes, which is where UTF-8 stops being ASCII. Written
     * as a negative literal because 0x8080808080808080 does not fit a signed `Long`; the
     * bits are what matter and they are the same either way.
     */
    private const val ASCII_HIGH_BITS = -0x7f7f7f7f7f7f7f80L

    private const val VALUE_NONE = 0
    private const val VALUE_TEXT = 1
    private const val VALUE_BOOL = 2
    private const val VALUE_INTEGER = 3
    private const val VALUE_FLOAT = 4
    private const val VALUE_BYTES = 5

    /** Decodes a batch in place. Must not copy the buffer; only strings become Kotlin Strings. */
    fun decode(batch: ByteBuffer, onMutation: (Mutation) -> Unit) {
        val base = batch.position()
        val available = batch.remaining()
        val previousOrder = batch.order()
        batch.order(ByteOrder.LITTLE_ENDIAN)
        try {
            requireRange(available, 0, ENVELOPE_LENGTH, 0)
            if (readU16(batch, base, available, 0) != TAG_ENVELOPE ||
                readU16(batch, base, available, 2) != ENVELOPE_LENGTH
            ) {
                throw ProtocolException("invalid batch envelope", 0)
            }
            val recordsLengthLong = readU32(batch, base, available, 4)
            val countLong = readU32(batch, base, available, 8)
            if (recordsLengthLong < ENVELOPE_LENGTH ||
                recordsLengthLong > available.toLong() ||
                recordsLengthLong % 4L != 0L
            ) {
                throw ProtocolException("invalid records length", 4)
            }
            if (countLong > Int.MAX_VALUE.toLong()) {
                throw ProtocolException("record count is too large", 8)
            }
            val recordsLength = recordsLengthLong.toInt()
            val count = countLong.toInt()
            var offset = ENVELOPE_LENGTH
            var decoded = 0
            while (offset < recordsLength) {
                requireRange(recordsLength, offset, 4, offset)
                val tag = readU16(batch, base, available, offset)
                val length = readU16(batch, base, available, offset + 2)
                if (length < 4 || length % 4 != 0 || offset.toLong() + length > recordsLength) {
                    throw ProtocolException("invalid record length", offset + 2)
                }
                val mutation = when (tag) {
                    TAG_CREATE -> {
                        requireRecordLength(length, 12, offset)
                        Mutation.Create(
                            readU32(batch, base, available, offset + 4).toInt(),
                            widgetKind(readU16(batch, base, available, offset + 8), offset + 8),
                        )
                    }
                    TAG_SET_PROP -> {
                        requireRecordLength(length, 24, offset)
                        val value = when (val valueKind = readU16(batch, base, available, offset + 10)) {
                            VALUE_NONE -> PropertyValue.None
                            VALUE_TEXT -> PropertyValue.Text(readString(batch, base, available, offset + 12))
                            VALUE_BOOL -> PropertyValue.Bool(readU64(batch, base, available, offset + 12) != 0L)
                            VALUE_INTEGER -> PropertyValue.Integer(readU64(batch, base, available, offset + 12))
                            VALUE_FLOAT -> PropertyValue.Float(
                                kotlin.Float.fromBits(readU64(batch, base, available, offset + 12).toInt()),
                            )
                            VALUE_BYTES -> PropertyValue.Bytes(readBytes(batch, base, available, offset + 12))
                            else -> throw ProtocolException("unknown property value tag $valueKind", offset + 10)
                        }
                        Mutation.SetProp(
                            readU32(batch, base, available, offset + 4).toInt(),
                            propertyKind(readU16(batch, base, available, offset + 8), offset + 8),
                            value,
                        )
                    }
                    TAG_SET_MODIFIER -> {
                        requireRecordLength(length, 28, offset)
                        Mutation.SetModifier(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readU16(batch, base, available, offset + 8),
                            modifier(
                                readU16(batch, base, available, offset + 10),
                                readU64(batch, base, available, offset + 12),
                                readU64(batch, base, available, offset + 20),
                                offset + 10,
                            ),
                        )
                    }
                    TAG_INSERT -> {
                        requireRecordLength(length, 16, offset)
                        Mutation.Insert(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readU32(batch, base, available, offset + 8).toInt(),
                            readU32(batch, base, available, offset + 12).toInt(),
                        )
                    }
                    TAG_MOVE -> {
                        requireRecordLength(length, 16, offset)
                        Mutation.Move(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readU32(batch, base, available, offset + 8).toInt(),
                            readU32(batch, base, available, offset + 12).toInt(),
                        )
                    }
                    TAG_REMOVE -> {
                        requireRecordLength(length, 8, offset)
                        Mutation.Remove(readU32(batch, base, available, offset + 4).toInt())
                    }
                    TAG_SET_TEXT -> {
                        requireRecordLength(length, 24, offset)
                        Mutation.SetText(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readString(batch, base, available, offset + 8),
                            readU32(batch, base, available, offset + 16).toInt(),
                            readU32(batch, base, available, offset + 20).toInt(),
                        )
                    }
                    TAG_APPEND_TEXT -> {
                        requireRecordLength(length, 16, offset)
                        Mutation.AppendText(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readString(batch, base, available, offset + 8),
                        )
                    }
                    TAG_SET_THEME -> {
                        requireRecordLength(length, THEME_RECORD_LENGTH, offset)
                        val adaptive = readU16(batch, base, available, offset + 10)
                        if (adaptive > 1) {
                            throw ProtocolException("invalid adaptive flag $adaptive", offset + 10)
                        }
                        // One slot per type role, in the order the wire fixes them in.
                        val fonts = List(TypeRole.entries.size) { role ->
                            readU32(batch, base, available, offset + 12 + 4 * role).toInt()
                        }
                        val (entries, problems) = palette(
                            readBytes(batch, base, available, offset + 12 + 4 * TypeRole.entries.size),
                        )
                        Mutation.SetTheme(
                            Theme(
                                designSystem(readU16(batch, base, available, offset + 4), offset + 4),
                                designSystem(readU16(batch, base, available, offset + 6), offset + 6),
                                colorScheme(readU16(batch, base, available, offset + 8), offset + 8),
                                adaptive == 1,
                                fonts,
                                entries,
                                problems,
                            ),
                        )
                    }
                    TAG_SET_WINDOW -> {
                        requireRecordLength(length, 32, offset)
                        val resizable = readU16(batch, base, available, offset + 16)
                        if (resizable > 1) {
                            throw ProtocolException("invalid resizable flag $resizable", offset + 16)
                        }
                        Mutation.SetWindow(
                            Window(
                                chrome(readU16(batch, base, available, offset + 4), offset + 4),
                                titleBar(readU16(batch, base, available, offset + 6), offset + 6),
                                readString(batch, base, available, offset + 20),
                                readU32(batch, base, available, offset + 28).toInt(),
                                readU16(batch, base, available, offset + 8),
                                readU16(batch, base, available, offset + 10),
                                readU16(batch, base, available, offset + 12),
                                readU16(batch, base, available, offset + 14),
                                resizable == 1,
                            ),
                        )
                    }
                    TAG_REGISTER_ASSET -> {
                        requireRecordLength(length, 20, offset)
                        Mutation.RegisterAsset(
                            readU32(batch, base, available, offset + 4).toInt(),
                            readU16(batch, base, available, offset + 8),
                            readBytes(batch, base, available, offset + 12),
                        )
                    }
                    TAG_RELEASE_ASSET -> {
                        requireRecordLength(length, 8, offset)
                        Mutation.ReleaseAsset(readU32(batch, base, available, offset + 4).toInt())
                    }
                    TAG_SHOW_MESSAGE -> {
                        requireRecordLength(length, 32, offset)
                        Mutation.ShowMessage(
                            readU64(batch, base, available, offset + 4),
                            readString(batch, base, available, offset + 12),
                            readString(batch, base, available, offset + 20),
                            messageDuration(readU16(batch, base, available, offset + 28), offset + 28),
                        )
                    }
                    TAG_POST_NOTIFICATION -> {
                        requireRecordLength(length, 56, offset)
                        Mutation.PostNotification(
                            readString(batch, base, available, offset + 4),
                            readString(batch, base, available, offset + 12),
                            readString(batch, base, available, offset + 20),
                            readString(batch, base, available, offset + 28),
                            readString(batch, base, available, offset + 36),
                            readString(batch, base, available, offset + 44),
                            notificationImportance(readU16(batch, base, available, offset + 52), offset + 52),
                            notificationPresentation(readU16(batch, base, available, offset + 54), offset + 54),
                        )
                    }
                    TAG_WITHDRAW_NOTIFICATION -> {
                        requireRecordLength(length, 12, offset)
                        Mutation.WithdrawNotification(readString(batch, base, available, offset + 4))
                    }
                    TAG_REQUEST_NOTIFICATION_PERMISSION -> {
                        requireRecordLength(length, 4, offset)
                        Mutation.RequestNotificationPermission
                    }
                    else -> throw ProtocolException("unknown mutation tag $tag", offset)
                }
                onMutation(mutation)
                decoded += 1
                offset += length
            }
            if (offset != recordsLength || decoded != count) {
                throw ProtocolException("record count does not match envelope", offset)
            }
        } finally {
            batch.order(previousOrder)
        }
    }

    /**
     * Reads a palette, keeping every sound entry and saying what was wrong with the rest.
     *
     * Lenient on purpose, unlike the rest of the batch: an unknown role, a scheme that is
     * neither light nor dark, a second value for the same role and scheme, or a length
     * that is not a whole number of entries is one entry's fault, and the others are
     * still what the application asked for.
     */
    fun palette(bytes: ByteArray): Pair<List<PaletteEntry>, List<String>> {
        if (bytes.isEmpty()) return emptyList<PaletteEntry>() to emptyList()
        val buffer = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN)
        val entries = ArrayList<PaletteEntry>(bytes.size / PALETTE_ENTRY_LENGTH)
        val problems = ArrayList<String>()
        if (bytes.size % PALETTE_ENTRY_LENGTH != 0) {
            problems += "a palette of ${bytes.size} bytes is not a whole number of " +
                "$PALETTE_ENTRY_LENGTH byte entries; the bytes past the last whole one are ignored"
        }
        for (index in 0 until bytes.size / PALETTE_ENTRY_LENGTH) {
            val at = index * PALETTE_ENTRY_LENGTH
            val roleTag = buffer.getShort(at).toInt() and 0xffff
            val schemeTag = buffer.getShort(at + 2).toInt() and 0xffff
            val argb = buffer.getInt(at + 4)
            val role = paletteRole(roleTag)
            if (role == null) {
                problems += "palette entry $index names colour role $roleTag, which does not exist"
                continue
            }
            val dark = when (schemeTag) {
                1 -> false
                2 -> true
                else -> {
                    problems += "palette entry $index gives $role for scheme $schemeTag; " +
                        "an entry is for light (1) or dark (2), and following the system is not a scheme"
                    continue
                }
            }
            if (entries.any { it.role == role && it.dark == dark }) {
                problems += "palette entry $index gives $role in ${if (dark) "dark" else "light"} " +
                    "a second time; the first value stands"
                continue
            }
            entries += PaletteEntry(role, dark, argb)
        }
        return entries to problems
    }

    /** Encodes one event into `out` (little-endian), returns bytes written. */
    fun encodeEvent(event: HostEvent, out: ByteBuffer): Int {
        val start = out.position()
        val previousOrder = out.order()
        out.order(ByteOrder.LITTLE_ENDIAN)
        try {
            val text = when (event) {
                is HostEvent.Clicked -> null
                is HostEvent.TextChanged -> event.text.toByteArray(StandardCharsets.UTF_8)
                is HostEvent.TextSubmitted -> event.text.toByteArray(StandardCharsets.UTF_8)
                is HostEvent.FocusLost -> null
                is HostEvent.ProtocolError -> event.message.toByteArray(StandardCharsets.UTF_8)
                is HostEvent.KeyDown -> null
                is HostEvent.RangeRequested -> null
                is HostEvent.ValueChanged -> null
                is HostEvent.WindowSizeChanged -> null
                is HostEvent.Resync -> null
                is HostEvent.LifecycleStart -> null
                is HostEvent.LifecycleStop -> null
                is HostEvent.DesignSystemResolved -> null
                is HostEvent.FilesEntered -> null
                is HostEvent.FilesDropped -> event.text.toByteArray(StandardCharsets.UTF_8)
                is HostEvent.NotificationActivated -> event.key.toByteArray(StandardCharsets.UTF_8)
                is HostEvent.NotificationPermissionChanged -> null
            }
            val recordLength = when (event) {
                is HostEvent.Clicked -> 16
                is HostEvent.TextChanged -> 24
                is HostEvent.TextSubmitted -> 24
                is HostEvent.FocusLost -> 16
                is HostEvent.ProtocolError -> 28
                is HostEvent.KeyDown -> 20
                is HostEvent.RangeRequested -> 24
                is HostEvent.ValueChanged -> 24
                is HostEvent.WindowSizeChanged -> 32
                is HostEvent.Resync -> 16
                is HostEvent.LifecycleStart -> 16
                is HostEvent.LifecycleStop -> 16
                is HostEvent.DesignSystemResolved -> 20
                is HostEvent.FilesEntered -> 16
                is HostEvent.FilesDropped -> 24
                is HostEvent.NotificationActivated -> 28
                is HostEvent.NotificationPermissionChanged -> 20
            }
            val totalLength = recordLength.toLong() + (text?.size ?: 0)
            if (totalLength > Int.MAX_VALUE || totalLength > out.remaining().toLong()) {
                throw ProtocolException("event output buffer is too small", 0)
            }
            val tag = when (event) {
                is HostEvent.Clicked -> 1
                is HostEvent.TextChanged -> 2
                is HostEvent.TextSubmitted -> 3
                is HostEvent.FocusLost -> 4
                is HostEvent.ProtocolError -> 5
                is HostEvent.KeyDown -> 6
                is HostEvent.RangeRequested -> 7
                is HostEvent.ValueChanged -> 16
                is HostEvent.WindowSizeChanged -> 17
                is HostEvent.Resync -> 18
                is HostEvent.LifecycleStart -> 19
                is HostEvent.LifecycleStop -> 20
                is HostEvent.DesignSystemResolved -> 21
                is HostEvent.FilesEntered -> 22
                is HostEvent.FilesDropped -> 23
                is HostEvent.NotificationActivated -> 24
                is HostEvent.NotificationPermissionChanged -> 25
            }
            out.putShort(tag.toShort())
            out.putShort(recordLength.toShort())
            out.putInt(event.nodeId)
            out.putLong(event.handlerId)
            when (event) {
                is HostEvent.Clicked -> Unit
                is HostEvent.TextChanged -> writeStringReference(out, recordLength, text!!)
                is HostEvent.TextSubmitted -> writeStringReference(out, recordLength, text!!)
                is HostEvent.FocusLost -> Unit
                is HostEvent.ProtocolError -> {
                    out.putInt(event.code)
                    writeStringReference(out, recordLength, text!!)
                }
                is HostEvent.KeyDown -> {
                    out.putShort(keyTag(event.key).toShort())
                    var modifiers = 0
                    if (event.shiftKey) modifiers = modifiers or 0x01
                    if (event.ctrlKey) modifiers = modifiers or 0x02
                    if (event.altKey) modifiers = modifiers or 0x04
                    if (event.metaKey) modifiers = modifiers or 0x08
                    out.put(modifiers.toByte())
                    out.put(0.toByte())
                }
                is HostEvent.RangeRequested -> {
                    out.putInt(event.start)
                    out.putInt(event.count)
                }
                is HostEvent.ValueChanged -> out.putDouble(event.value)
                is HostEvent.WindowSizeChanged -> {
                    out.putFloat(event.widthDp)
                    out.putFloat(event.heightDp)
                    out.putInt(windowSizeClassTag(event.sizeClass))
                    out.putInt(windowHeightClassTag(event.heightClass))
                }
                is HostEvent.Resync -> Unit
                is HostEvent.LifecycleStart -> Unit
                is HostEvent.LifecycleStop -> Unit
                is HostEvent.DesignSystemResolved -> {
                    out.putInt(designSystemTag(event.system))
                }
                is HostEvent.FilesEntered -> Unit
                is HostEvent.FilesDropped -> writeStringReference(out, recordLength, text!!)
                is HostEvent.NotificationActivated -> {
                    out.putInt(event.action)
                    writeStringReference(out, recordLength, text!!)
                }
                is HostEvent.NotificationPermissionChanged -> {
                    out.putInt(notificationPermissionTag(event.state))
                }
            }
            if (text != null) out.put(text)
            return out.position() - start
        } finally {
            out.order(previousOrder)
        }
    }

    /**
     * Handshake payload the Renderer sends to compose_rust_host_init.
     *
     * `loopMode` says who owns the frame loop: the Renderer on desktop, the platform on
     * Android, iOS and the web.
     */
    fun handshake(out: ByteBuffer, loopMode: LoopMode = LoopMode.Renderer): Int {
        val start = out.position()
        if (out.remaining() < 12) {
            throw ProtocolException("handshake output buffer is too small", 0)
        }
        val previousOrder = out.order()
        out.order(ByteOrder.LITTLE_ENDIAN)
        try {
            out.putLong(SCHEMA_HASH)
            out.putShort(PROTOCOL_VERSION.toShort())
            out.put(loopMode.wire)
            out.put(0.toByte()) // Reserved for alignment.
            return out.position() - start
        } finally {
            out.order(previousOrder)
        }
    }

    private fun writeStringReference(out: ByteBuffer, offset: Int, bytes: ByteArray) {
        out.putInt(offset)
        out.putInt(bytes.size)
    }

    private fun widgetKind(tag: Int, offset: Int): WidgetKind = when (tag) {
        1 -> WidgetKind.Column
        2 -> WidgetKind.Row
        3 -> WidgetKind.Box
        4 -> WidgetKind.Text
        5 -> WidgetKind.TextField
        6 -> WidgetKind.Button
        7 -> WidgetKind.Spacer
        8 -> WidgetKind.LazyColumn
        9 -> WidgetKind.ScrollColumn
        10 -> WidgetKind.Image
        11 -> WidgetKind.Icon
        12 -> WidgetKind.Checkbox
        13 -> WidgetKind.RadioButton
        14 -> WidgetKind.Switch
        15 -> WidgetKind.Slider
        16 -> WidgetKind.ProgressIndicator
        17 -> WidgetKind.Divider
        18 -> WidgetKind.Card
        19 -> WidgetKind.Surface
        20 -> WidgetKind.Dialog
        21 -> WidgetKind.Menu
        22 -> WidgetKind.Tabs
        23 -> WidgetKind.TopAppBar
        24 -> WidgetKind.LazyRow
        25 -> WidgetKind.Tooltip
        26 -> WidgetKind.Canvas
        27 -> WidgetKind.DatePicker
        28 -> WidgetKind.TimePicker
        29 -> WidgetKind.Dropdown
        30 -> WidgetKind.Navigation
        31 -> WidgetKind.NavigationItem
        32 -> WidgetKind.Sheet
        33 -> WidgetKind.Scaffold
        34 -> WidgetKind.ScaffoldSlot
        35 -> WidgetKind.LazyGrid
        36 -> WidgetKind.FileDropTarget
        37 -> WidgetKind.ScrollRow
        38 -> WidgetKind.Chip
        39 -> WidgetKind.FloatingAction
        40 -> WidgetKind.Badge
        41 -> WidgetKind.SelectionContainer
        42 -> WidgetKind.SplitPane
        100 -> WidgetKind.LinearProgressIndicator
        else -> throw ProtocolException("unknown widget tag $tag", offset)
    }

    private fun propertyKind(tag: Int, offset: Int): PropertyKind = when (tag) {
        1 -> PropertyKind.Text
        2 -> PropertyKind.Placeholder
        3 -> PropertyKind.Enabled
        4 -> PropertyKind.Multiline
        5 -> PropertyKind.OnClick
        6 -> PropertyKind.OnValueChange
        7 -> PropertyKind.OnSubmit
        8 -> PropertyKind.OnFocusLost
        9 -> PropertyKind.OnKeyDown
        10 -> PropertyKind.ItemCount
        11 -> PropertyKind.ItemKey
        12 -> PropertyKind.OnRangeRequested
        13 -> PropertyKind.TypeRole
        14 -> PropertyKind.FontSize
        15 -> PropertyKind.FontWeight
        16 -> PropertyKind.LineHeight
        17 -> PropertyKind.LetterSpacing
        18 -> PropertyKind.Color
        19 -> PropertyKind.TextAlign
        20 -> PropertyKind.MaxLines
        21 -> PropertyKind.Overflow
        22 -> PropertyKind.Arrangement
        23 -> PropertyKind.Spacing
        24 -> PropertyKind.SpaceRole
        25 -> PropertyKind.Alignment
        26 -> PropertyKind.Variant
        28 -> PropertyKind.Asset
        32 -> PropertyKind.Checked
        33 -> PropertyKind.Steps
        34 -> PropertyKind.Determinate
        35 -> PropertyKind.Circular
        36 -> PropertyKind.Vertical
        40 -> PropertyKind.Open
        41 -> PropertyKind.OnDismiss
        42 -> PropertyKind.SelectedIndex
        50 -> PropertyKind.Commands
        51 -> PropertyKind.Value
        52 -> PropertyKind.Min
        53 -> PropertyKind.Max
        60 -> PropertyKind.Icon
        61 -> PropertyKind.Slot
        62 -> PropertyKind.Columns
        63 -> PropertyKind.MinColumnWidth
        64 -> PropertyKind.Spans
        65 -> PropertyKind.OnFilesEntered
        66 -> PropertyKind.OnFilesDropped
        76 -> PropertyKind.Section
        80 -> PropertyKind.Count
        90 -> PropertyKind.Collapsible
        27 -> PropertyKind.Progress
        else -> throw ProtocolException("unknown property tag $tag", offset)
    }

    private fun keyTag(key: Key): Int = when (key) {
        Key.Enter -> 1
    }

    private fun windowSizeClassTag(sizeClass: WindowSizeClass): Int = when (sizeClass) {
        WindowSizeClass.Compact -> 0
        WindowSizeClass.Medium -> 1
        WindowSizeClass.Expanded -> 2
    }

    private fun windowHeightClassTag(heightClass: WindowHeightClass): Int = when (heightClass) {
        WindowHeightClass.Compact -> 0
        WindowHeightClass.Medium -> 1
        WindowHeightClass.Expanded -> 2
    }

    private fun designSystemTag(system: DesignSystem): Int = when (system) {
        DesignSystem.Material3 -> 1
        DesignSystem.Cupertino -> 2
        DesignSystem.Fluent -> 3
        DesignSystem.Gnome -> 4
        DesignSystem.Breeze -> 5
        DesignSystem.Deepin -> 6
        DesignSystem.LiquidGlass -> 7
    }

    private fun notificationPermissionTag(state: NotificationPermission): Int = when (state) {
        NotificationPermission.NotDetermined -> 1
        NotificationPermission.Granted -> 2
        NotificationPermission.Denied -> 3
        NotificationPermission.Unsupported -> 4
    }

    private fun paletteRole(tag: Int): ColorRole? = when (tag) {
        1 -> ColorRole.Primary
        2 -> ColorRole.OnPrimary
        3 -> ColorRole.Secondary
        4 -> ColorRole.OnSecondary
        5 -> ColorRole.Surface
        6 -> ColorRole.OnSurface
        7 -> ColorRole.SurfaceVariant
        8 -> ColorRole.OnSurfaceVariant
        9 -> ColorRole.Background
        10 -> ColorRole.OnBackground
        11 -> ColorRole.Outline
        12 -> ColorRole.OutlineVariant
        13 -> ColorRole.Error
        14 -> ColorRole.OnError
        15 -> ColorRole.SurfaceContainer
        16 -> ColorRole.Tertiary
        17 -> ColorRole.OnTertiary
        18 -> ColorRole.PrimaryContainer
        19 -> ColorRole.OnPrimaryContainer
        20 -> ColorRole.SecondaryContainer
        21 -> ColorRole.OnSecondaryContainer
        22 -> ColorRole.TertiaryContainer
        23 -> ColorRole.OnTertiaryContainer
        24 -> ColorRole.SyntaxKeyword
        25 -> ColorRole.SyntaxString
        26 -> ColorRole.SyntaxComment
        27 -> ColorRole.SyntaxNumber
        28 -> ColorRole.SyntaxConstant
        29 -> ColorRole.SyntaxType
        30 -> ColorRole.SyntaxFunction
        31 -> ColorRole.SyntaxVariable
        32 -> ColorRole.SyntaxProperty
        33 -> ColorRole.SyntaxOperator
        34 -> ColorRole.SyntaxPunctuation
        35 -> ColorRole.SyntaxTag
        36 -> ColorRole.SyntaxAttribute
        37 -> ColorRole.SyntaxEscape
        38 -> ColorRole.SyntaxMacro
        39 -> ColorRole.DiffAdded
        40 -> ColorRole.DiffRemoved
        41 -> ColorRole.DiffModified
        42 -> ColorRole.DiffAddedContainer
        43 -> ColorRole.DiffRemovedContainer
        44 -> ColorRole.DiffAddedEmphasis
        45 -> ColorRole.DiffRemovedEmphasis
        else -> null
    }

    private fun colorRole(tag: Int, offset: Int): ColorRole = when (tag) {
        1 -> ColorRole.Primary
        2 -> ColorRole.OnPrimary
        3 -> ColorRole.Secondary
        4 -> ColorRole.OnSecondary
        5 -> ColorRole.Surface
        6 -> ColorRole.OnSurface
        7 -> ColorRole.SurfaceVariant
        8 -> ColorRole.OnSurfaceVariant
        9 -> ColorRole.Background
        10 -> ColorRole.OnBackground
        11 -> ColorRole.Outline
        12 -> ColorRole.OutlineVariant
        13 -> ColorRole.Error
        14 -> ColorRole.OnError
        15 -> ColorRole.SurfaceContainer
        16 -> ColorRole.Tertiary
        17 -> ColorRole.OnTertiary
        18 -> ColorRole.PrimaryContainer
        19 -> ColorRole.OnPrimaryContainer
        20 -> ColorRole.SecondaryContainer
        21 -> ColorRole.OnSecondaryContainer
        22 -> ColorRole.TertiaryContainer
        23 -> ColorRole.OnTertiaryContainer
        24 -> ColorRole.SyntaxKeyword
        25 -> ColorRole.SyntaxString
        26 -> ColorRole.SyntaxComment
        27 -> ColorRole.SyntaxNumber
        28 -> ColorRole.SyntaxConstant
        29 -> ColorRole.SyntaxType
        30 -> ColorRole.SyntaxFunction
        31 -> ColorRole.SyntaxVariable
        32 -> ColorRole.SyntaxProperty
        33 -> ColorRole.SyntaxOperator
        34 -> ColorRole.SyntaxPunctuation
        35 -> ColorRole.SyntaxTag
        36 -> ColorRole.SyntaxAttribute
        37 -> ColorRole.SyntaxEscape
        38 -> ColorRole.SyntaxMacro
        39 -> ColorRole.DiffAdded
        40 -> ColorRole.DiffRemoved
        41 -> ColorRole.DiffModified
        42 -> ColorRole.DiffAddedContainer
        43 -> ColorRole.DiffRemovedContainer
        44 -> ColorRole.DiffAddedEmphasis
        45 -> ColorRole.DiffRemovedEmphasis
        else -> throw ProtocolException("unknown ColorRole tag $tag", offset)
    }

    private fun typeRole(tag: Int, offset: Int): TypeRole = when (tag) {
        1 -> TypeRole.Display
        2 -> TypeRole.Headline
        3 -> TypeRole.Title
        4 -> TypeRole.Subtitle
        5 -> TypeRole.Body
        6 -> TypeRole.BodyStrong
        7 -> TypeRole.Label
        8 -> TypeRole.Caption
        9 -> TypeRole.Mono
        else -> throw ProtocolException("unknown TypeRole tag $tag", offset)
    }

    private fun shapeRole(tag: Int, offset: Int): ShapeRole = when (tag) {
        1 -> ShapeRole.None
        2 -> ShapeRole.ExtraSmall
        3 -> ShapeRole.Small
        4 -> ShapeRole.Medium
        5 -> ShapeRole.Large
        6 -> ShapeRole.Full
        else -> throw ProtocolException("unknown ShapeRole tag $tag", offset)
    }

    private fun motionRole(tag: Int, offset: Int): MotionRole = when (tag) {
        1 -> MotionRole.Instant
        2 -> MotionRole.Quick
        3 -> MotionRole.Standard
        4 -> MotionRole.Slow
        5 -> MotionRole.Emphasized
        else -> throw ProtocolException("unknown MotionRole tag $tag", offset)
    }

    private fun tileMode(tag: Int, offset: Int): TileMode = when (tag) {
        1 -> TileMode.Clamp
        2 -> TileMode.Repeat
        3 -> TileMode.Mirror
        else -> throw ProtocolException("unknown TileMode tag $tag", offset)
    }

    private fun materialRole(tag: Int, offset: Int): MaterialRole = when (tag) {
        1 -> MaterialRole.Thin
        2 -> MaterialRole.Regular
        3 -> MaterialRole.Thick
        4 -> MaterialRole.Chrome
        else -> throw ProtocolException("unknown MaterialRole tag $tag", offset)
    }

    private fun spaceRole(tag: Int, offset: Int): SpaceRole = when (tag) {
        1 -> SpaceRole.None
        2 -> SpaceRole.Xs
        3 -> SpaceRole.Sm
        4 -> SpaceRole.Md
        5 -> SpaceRole.Lg
        6 -> SpaceRole.Xl
        7 -> SpaceRole.Xxl
        else -> throw ProtocolException("unknown SpaceRole tag $tag", offset)
    }

    private fun textAlign(tag: Int, offset: Int): TextAlign = when (tag) {
        1 -> TextAlign.Start
        2 -> TextAlign.Center
        3 -> TextAlign.End
        4 -> TextAlign.Justify
        else -> throw ProtocolException("unknown TextAlign tag $tag", offset)
    }

    private fun textOverflow(tag: Int, offset: Int): TextOverflow = when (tag) {
        1 -> TextOverflow.Clip
        2 -> TextOverflow.Ellipsis
        3 -> TextOverflow.Visible
        else -> throw ProtocolException("unknown TextOverflow tag $tag", offset)
    }

    private fun arrangement(tag: Int, offset: Int): Arrangement = when (tag) {
        1 -> Arrangement.Start
        2 -> Arrangement.Center
        3 -> Arrangement.End
        4 -> Arrangement.SpaceBetween
        5 -> Arrangement.SpaceAround
        6 -> Arrangement.SpaceEvenly
        else -> throw ProtocolException("unknown Arrangement tag $tag", offset)
    }

    private fun alignment(tag: Int, offset: Int): Alignment = when (tag) {
        1 -> Alignment.TopStart
        2 -> Alignment.TopCenter
        3 -> Alignment.TopEnd
        4 -> Alignment.CenterStart
        5 -> Alignment.Center
        6 -> Alignment.CenterEnd
        7 -> Alignment.BottomStart
        8 -> Alignment.BottomCenter
        9 -> Alignment.BottomEnd
        else -> throw ProtocolException("unknown Alignment tag $tag", offset)
    }

    private fun buttonVariant(tag: Int, offset: Int): ButtonVariant = when (tag) {
        1 -> ButtonVariant.Filled
        2 -> ButtonVariant.Tonal
        3 -> ButtonVariant.Outlined
        4 -> ButtonVariant.Text
        5 -> ButtonVariant.Operator
        else -> throw ProtocolException("unknown ButtonVariant tag $tag", offset)
    }

    private fun designSystem(tag: Int, offset: Int): DesignSystem = when (tag) {
        1 -> DesignSystem.Material3
        2 -> DesignSystem.Cupertino
        3 -> DesignSystem.Fluent
        4 -> DesignSystem.Gnome
        5 -> DesignSystem.Breeze
        6 -> DesignSystem.Deepin
        7 -> DesignSystem.LiquidGlass
        else -> throw ProtocolException("unknown DesignSystem tag $tag", offset)
    }

    private fun colorScheme(tag: Int, offset: Int): ColorScheme = when (tag) {
        1 -> ColorScheme.Light
        2 -> ColorScheme.Dark
        3 -> ColorScheme.FollowSystem
        else -> throw ProtocolException("unknown ColorScheme tag $tag", offset)
    }

    private fun assetKind(tag: Int, offset: Int): AssetKind = when (tag) {
        1 -> AssetKind.Png
        2 -> AssetKind.Jpeg
        3 -> AssetKind.Svg
        4 -> AssetKind.VectorIcon
        5 -> AssetKind.Font
        6 -> AssetKind.Brush
        else -> throw ProtocolException("unknown AssetKind tag $tag", offset)
    }

    private fun iconRole(tag: Int, offset: Int): IconRole = when (tag) {
        1 -> IconRole.Back
        2 -> IconRole.Forward
        3 -> IconRole.Close
        4 -> IconRole.Search
        5 -> IconRole.Add
        6 -> IconRole.Check
        7 -> IconRole.Settings
        8 -> IconRole.More
        9 -> IconRole.Home
        10 -> IconRole.List
        11 -> IconRole.Inbox
        12 -> IconRole.Menu
        13 -> IconRole.History
        14 -> IconRole.Send
        15 -> IconRole.Mic
        16 -> IconRole.Image
        17 -> IconRole.Video
        18 -> IconRole.Library
        19 -> IconRole.Sidebar
        20 -> IconRole.Compose
        21 -> IconRole.Collapse
        else -> throw ProtocolException("unknown IconRole tag $tag", offset)
    }

    private fun messageDuration(tag: Int, offset: Int): MessageDuration = when (tag) {
        1 -> MessageDuration.Short
        2 -> MessageDuration.Long
        else -> throw ProtocolException("unknown MessageDuration tag $tag", offset)
    }

    private fun chrome(tag: Int, offset: Int): Chrome = when (tag) {
        1 -> Chrome.Modern
        2 -> Chrome.System
        else -> throw ProtocolException("unknown Chrome tag $tag", offset)
    }

    private fun titleBar(tag: Int, offset: Int): TitleBar = when (tag) {
        1 -> TitleBar.Normal
        2 -> TitleBar.Simple
        else -> throw ProtocolException("unknown TitleBar tag $tag", offset)
    }

    private fun slotRole(tag: Int, offset: Int): SlotRole = when (tag) {
        1 -> SlotRole.TopBar
        2 -> SlotRole.BottomBar
        3 -> SlotRole.FloatingAction
        4 -> SlotRole.Content
        else -> throw ProtocolException("unknown SlotRole tag $tag", offset)
    }

    private fun notificationImportance(tag: Int, offset: Int): NotificationImportance = when (tag) {
        1 -> NotificationImportance.Normal
        2 -> NotificationImportance.Urgent
        else -> throw ProtocolException("unknown NotificationImportance tag $tag", offset)
    }

    private fun notificationPresentation(tag: Int, offset: Int): NotificationPresentation = when (tag) {
        1 -> NotificationPresentation.Always
        2 -> NotificationPresentation.WhenInactive
        else -> throw ProtocolException("unknown NotificationPresentation tag $tag", offset)
    }

    private fun notificationPermission(tag: Int, offset: Int): NotificationPermission = when (tag) {
        1 -> NotificationPermission.NotDetermined
        2 -> NotificationPermission.Granted
        3 -> NotificationPermission.Denied
        4 -> NotificationPermission.Unsupported
        else -> throw ProtocolException("unknown NotificationPermission tag $tag", offset)
    }

    private fun paint(bits: Long, offset: Int): Paint {
        val value = bits.toInt()
        return when (val kind = (bits ushr 32).toInt()) {
            1 -> Paint.Role(colorRole(value, offset))
            2 -> Paint.Literal(value)
            3 -> Paint.Asset(value)
            else -> throw ProtocolException("unknown paint kind $kind", offset)
        }
    }

    private fun modifier(tag: Int, first: Long, second: Long, offset: Int): Modifier = when (tag) {
        0 -> Modifier.Empty
        1 -> Modifier.Padding(kotlin.Float.fromBits(first.toInt()))
        2 -> Modifier.FillMaxWidth
        3 -> Modifier.FillMaxHeight
        4 -> Modifier.Width(kotlin.Float.fromBits(first.toInt()))
        5 -> Modifier.Height(kotlin.Float.fromBits(first.toInt()))
        6 -> Modifier.Size(kotlin.Float.fromBits(first.toInt()), kotlin.Float.fromBits(second.toInt()))
        7 -> Modifier.Background(paint(first, offset))
        8 -> Modifier.Clickable(first)
        9 -> Modifier.PaddingRole(spaceRole(first.toInt(), offset))
        10 -> Modifier.PaddingEach(kotlin.Float.fromBits(first.toInt()), kotlin.Float.fromBits((first ushr 32).toInt()), kotlin.Float.fromBits(second.toInt()), kotlin.Float.fromBits((second ushr 32).toInt()))
        11 -> Modifier.Weight(kotlin.Float.fromBits(first.toInt()))
        12 -> Modifier.Shape(kotlin.Float.fromBits(first.toInt()), kotlin.Float.fromBits((first ushr 32).toInt()), kotlin.Float.fromBits(second.toInt()), kotlin.Float.fromBits((second ushr 32).toInt()))
        13 -> Modifier.ShapeRole(shapeRole(first.toInt(), offset))
        14 -> Modifier.Border(kotlin.Float.fromBits(first.toInt()), paint(second, offset))
        15 -> Modifier.Elevation(kotlin.Float.fromBits(first.toInt()))
        16 -> Modifier.ObserveSize(first.toInt())
        17 -> Modifier.Motion(motionRole(first.toInt(), offset))
        18 -> Modifier.Material(materialRole(first.toInt(), offset))
        else -> throw ProtocolException("unknown modifier tag $tag", offset)
    }

    /**
     * An arena range with no UTF-8 requirement, used by both a drawing command list and an
     * asset's bytes. For an asset this is the one copy this side makes, and it happens at
     * registration rather than per frame.
     */
    private fun readBytes(batch: ByteBuffer, base: Int, available: Int, referenceOffset: Int): ByteArray {
        val offsetLong = readU32(batch, base, available, referenceOffset)
        val lengthLong = readU32(batch, base, available, referenceOffset + 4)
        if (offsetLong > Int.MAX_VALUE || lengthLong > Int.MAX_VALUE) {
            throw ProtocolException("byte range is too large", referenceOffset)
        }
        val offset = offsetLong.toInt()
        val length = lengthLong.toInt()
        requireRange(available, offset, length, referenceOffset)
        val copy = ByteArray(length)
        copyOut(batch, base + offset, copy, length)
        return copy
    }

    /**
     * Copies a range of the arena into an array.
     *
     * The absolute bulk read that says the same thing in one call, `get(index, array,
     * offset, length)`, arrived in Java 13 and is not in every Android runtime this has to
     * run on. So the read goes through the buffer's own position, which every version has,
     * and puts it back afterwards: the arena is read from one thread and a position left
     * where the last read ended would make the next one read the wrong bytes.
     *
     * Nothing is allocated. A `duplicate()` would avoid touching the position and costs an
     * object per call on a path that runs per string in every batch.
     */
    private fun copyOut(batch: ByteBuffer, at: Int, into: ByteArray, length: Int) {
        val mark = batch.position()
        batch.position(at)
        batch.get(into, 0, length)
        batch.position(mark)
    }

    /**
     * The string Compose is handed, and the only copy of the text this side makes.
     *
     * Validating and building are two passes rather than one because the two things that
     * do both are each wrong here. `String(bytes, UTF_8)` replaces a malformed byte with
     * U+FFFD, and a malformed string means the two sides disagree about the arena, which
     * has to be reported rather than drawn. A `CharsetDecoder` reports it, but assembles
     * the text as `char` first, two bytes a character, and then copies that into the
     * `String`, and it needs a decoder and two buffer views of its own to do it.
     *
     * So the bytes are checked where they lie, which allocates nothing, and then copied
     * once into a buffer this object keeps and handed to `String`, which by then has
     * nothing left to replace. What remains is the one allocation the string itself is.
     */
    private fun readString(batch: ByteBuffer, base: Int, available: Int, referenceOffset: Int): String {
        val offsetLong = readU32(batch, base, available, referenceOffset)
        val lengthLong = readU32(batch, base, available, referenceOffset + 4)
        if (offsetLong > Int.MAX_VALUE || lengthLong > Int.MAX_VALUE) {
            throw ProtocolException("string range is too large", referenceOffset)
        }
        val offset = offsetLong.toInt()
        val length = lengthLong.toInt()
        requireRange(available, offset, length, referenceOffset)
        if (length == 0) {
            return ""
        }
        requireUtf8(batch, base + offset, length, offset)
        val scratch = stringBytes(length)
        copyOut(batch, base + offset, scratch, length)
        return String(scratch, 0, length, StandardCharsets.UTF_8)
    }

    /**
     * Reads a range of the arena as UTF-8 without building anything out of it.
     *
     * The bounds are Unicode's, and the ones that look arbitrary are the point. A two byte
     * sequence starts at 0xc2 because 0xc0 and 0xc1 could only encode what one byte
     * already encodes; the second byte after 0xe0 starts at 0xa0 and after 0xf0 at 0x90
     * for the same reason; 0xed stops at 0x9f because the surrogate halves follow it; and
     * four byte sequences stop at 0xf4 0x8f because U+10FFFF is the last code point. The
     * platform's decoder refuses every one of those, and this has to refuse them too, or
     * a range it called text would come out of `String` as replacement characters.
     */
    private fun requireUtf8(batch: ByteBuffer, start: Int, length: Int, errorOffset: Int) {
        var index = 0
        while (index < length) {
            val lead = batch.get(start + index).toInt() and 0xff
            if (lead < 0x80) {
                index += 1
                // Eight bytes at a time for as long as the text stays ASCII, which most
                // text is and all of a streaming append usually is: a long with no high
                // bit anywhere in it is eight characters that need nothing else checked.
                // The mask is the same at both ends, so which order the long is read in
                // does not matter. Entered only after an ASCII byte, so text with no
                // ASCII in it never pays for the attempt.
                while (index + 8 <= length &&
                    batch.getLong(start + index) and ASCII_HIGH_BITS == 0L
                ) {
                    index += 8
                }
                continue
            }
            val width = when {
                lead >= 0xc2 && lead <= 0xdf -> 2
                lead >= 0xe0 && lead <= 0xef -> 3
                lead >= 0xf0 && lead <= 0xf4 -> 4
                else -> malformedUtf8(errorOffset)
            }
            if (index + width > length) {
                malformedUtf8(errorOffset)
            }
            val lowest = when (lead) {
                0xe0 -> 0xa0
                0xf0 -> 0x90
                else -> 0x80
            }
            val highest = when (lead) {
                0xed -> 0x9f
                0xf4 -> 0x8f
                else -> 0xbf
            }
            val second = batch.get(start + index + 1).toInt() and 0xff
            if (second < lowest || second > highest) {
                malformedUtf8(errorOffset)
            }
            var step = 2
            while (step < width) {
                val continuation = batch.get(start + index + step).toInt() and 0xff
                if (continuation < 0x80 || continuation > 0xbf) {
                    malformedUtf8(errorOffset)
                }
                step += 1
            }
            index += width
        }
    }

    private fun malformedUtf8(errorOffset: Int): Nothing =
        throw ProtocolException("string is not valid UTF-8", errorOffset)

    /**
     * The buffer every string is copied through, grown to fit and then kept.
     *
     * A frame's strings go through it one after another, so a stream of keystrokes costs
     * nothing here once it is big enough. It doubles rather than fitting exactly, because
     * text that grows a character at a time would otherwise reallocate on every keystroke.
     *
     * One buffer is enough, and it needs no lock, because a batch is decoded on the
     * Renderer's UI thread and on no other: the Host's worker threads update signals and
     * ask for a frame, they never call across the boundary themselves. Two threads
     * decoding at once would hand each other half a string.
     */
    private var stringScratch = ByteArray(256)

    private fun stringBytes(length: Int): ByteArray {
        val scratch = stringScratch
        if (scratch.size >= length) {
            return scratch
        }
        var size = scratch.size
        while (size < length) {
            size = if (size > Int.MAX_VALUE / 2) length else size + size
        }
        val grown = ByteArray(size)
        stringScratch = grown
        return grown
    }

    private fun readU16(batch: ByteBuffer, base: Int, available: Int, offset: Int): Int {
        requireRange(available, offset, 2, offset)
        return batch.getShort(base + offset).toInt() and 0xffff
    }

    private fun readU32(batch: ByteBuffer, base: Int, available: Int, offset: Int): Long {
        requireRange(available, offset, 4, offset)
        return batch.getInt(base + offset).toLong() and 0xffff_ffffL
    }

    private fun readU64(batch: ByteBuffer, base: Int, available: Int, offset: Int): Long {
        requireRange(available, offset, 8, offset)
        return batch.getLong(base + offset)
    }

    private fun requireRecordLength(actual: Int, expected: Int, offset: Int) {
        if (actual != expected) {
            throw ProtocolException("invalid record length $actual for tag", offset + 2)
        }
    }

    private fun requireRange(available: Int, offset: Int, length: Int, errorOffset: Int) {
        if (offset < 0 || length < 0 || offset.toLong() + length > available.toLong()) {
            throw ProtocolException("truncated or out-of-range data", errorOffset)
        }
    }
}

/** One rung of the type ladder. Sizes are sp, spacing may be negative. */
data class TypeToken(
    val size: Float,
    val weight: Int,
    val lineHeight: Float,
    val letterSpacing: Float,
    val monospace: Boolean,
)

/**
 * The generated half of one design system's tables: colours, type, shapes and spacing.
 *
 * Arrays are indexed by the role's ordinal, which matches its wire tag minus one.
 * The rules that consume them (elevation rendering, ButtonVariant styling, motion) are
 * written by hand in the Renderer.
 */
class DesignTokenTable(
    val system: DesignSystem,
    /** The published guideline these values come from. */
    val reference: String,
    val defaultFamily: String,
    val monospaceFamily: String,
    private val lightColors: IntArray,
    private val darkColors: IntArray,
    private val typeScale: Array<TypeToken>,
    private val shapeRadii: FloatArray,
    private val spaces: FloatArray,
) {
    /** The 0xAARRGGBB value for a role. `dark` is the scheme the Renderer resolved. */
    fun color(role: ColorRole, dark: Boolean): Int =
        if (dark) darkColors[role.ordinal] else lightColors[role.ordinal]

    fun type(role: TypeRole): TypeToken = typeScale[role.ordinal]

    /** Corner radius in dp. */
    fun radius(role: ShapeRole): Float = shapeRadii[role.ordinal]

    /** Spacing in dp. */
    fun space(role: SpaceRole): Float = spaces[role.ordinal]
}

object DesignTokens {
    val MATERIAL3: DesignTokenTable = DesignTokenTable(
        DesignSystem.Material3,
        "Material 3 Expressive shape, colour and type scales, m3.material.io, 2025",
        "Roboto",
        "Roboto Mono",
        intArrayOf(
            0xff6750a4.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff625b71.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xfffef7ff.toInt(), // Surface
            0xff1d1b20.toInt(), // OnSurface
            0xffe7e0ec.toInt(), // SurfaceVariant
            0xff49454f.toInt(), // OnSurfaceVariant
            0xfffef7ff.toInt(), // Background
            0xff1d1b20.toInt(), // OnBackground
            0xff79747e.toInt(), // Outline
            0xffcac4d0.toInt(), // OutlineVariant
            0xffb3261e.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xfff3edf7.toInt(), // SurfaceContainer
            0xff7d5260.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffeaddff.toInt(), // PrimaryContainer
            0xff21005d.toInt(), // OnPrimaryContainer
            0xffe8def8.toInt(), // SecondaryContainer
            0xff1d192b.toInt(), // OnSecondaryContainer
            0xffffd8e4.toInt(), // TertiaryContainer
            0xff31111d.toInt(), // OnTertiaryContainer
            0xff6750a4.toInt(), // SyntaxKeyword
            0xff7d5260.toInt(), // SyntaxString
            0xff49454f.toInt(), // SyntaxComment
            0xff31111d.toInt(), // SyntaxNumber
            0xff31111d.toInt(), // SyntaxConstant
            0xff625b71.toInt(), // SyntaxType
            0xff21005d.toInt(), // SyntaxFunction
            0xff1d1b20.toInt(), // SyntaxVariable
            0xff1d192b.toInt(), // SyntaxProperty
            0xff49454f.toInt(), // SyntaxOperator
            0xff49454f.toInt(), // SyntaxPunctuation
            0xff6750a4.toInt(), // SyntaxTag
            0xff625b71.toInt(), // SyntaxAttribute
            0xffb3261e.toInt(), // SyntaxEscape
            0xff625b71.toInt(), // SyntaxMacro
            0xff006d17.toInt(), // DiffAdded
            0xffb3261e.toInt(), // DiffRemoved
            0xff7d5260.toInt(), // DiffModified
            0xffd6dedc.toInt(), // DiffAddedContainer
            0xffebd5dd.toInt(), // DiffRemovedContainer
            0xffaac7b4.toInt(), // DiffAddedEmphasis
            0xffe0b1b6.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xffd0bcff.toInt(), // Primary
            0xff381e72.toInt(), // OnPrimary
            0xffccc2dc.toInt(), // Secondary
            0xff332d41.toInt(), // OnSecondary
            0xff141218.toInt(), // Surface
            0xffe6e0e9.toInt(), // OnSurface
            0xff49454f.toInt(), // SurfaceVariant
            0xffcac4d0.toInt(), // OnSurfaceVariant
            0xff141218.toInt(), // Background
            0xffe6e0e9.toInt(), // OnBackground
            0xff938f99.toInt(), // Outline
            0xff49454f.toInt(), // OutlineVariant
            0xfff2b8b5.toInt(), // Error
            0xff601410.toInt(), // OnError
            0xff211f26.toInt(), // SurfaceContainer
            0xffefb8c8.toInt(), // Tertiary
            0xff492532.toInt(), // OnTertiary
            0xff4f378b.toInt(), // PrimaryContainer
            0xffeaddff.toInt(), // OnPrimaryContainer
            0xff4a4458.toInt(), // SecondaryContainer
            0xffe8def8.toInt(), // OnSecondaryContainer
            0xff633b48.toInt(), // TertiaryContainer
            0xffffd8e4.toInt(), // OnTertiaryContainer
            0xffd0bcff.toInt(), // SyntaxKeyword
            0xffefb8c8.toInt(), // SyntaxString
            0xffcac4d0.toInt(), // SyntaxComment
            0xffffd8e4.toInt(), // SyntaxNumber
            0xffffd8e4.toInt(), // SyntaxConstant
            0xffccc2dc.toInt(), // SyntaxType
            0xffeaddff.toInt(), // SyntaxFunction
            0xffe6e0e9.toInt(), // SyntaxVariable
            0xffe8def8.toInt(), // SyntaxProperty
            0xffcac4d0.toInt(), // SyntaxOperator
            0xffcac4d0.toInt(), // SyntaxPunctuation
            0xffd0bcff.toInt(), // SyntaxTag
            0xffccc2dc.toInt(), // SyntaxAttribute
            0xfff2b8b5.toInt(), // SyntaxEscape
            0xffccc2dc.toInt(), // SyntaxMacro
            0xffb2ceaa.toInt(), // DiffAdded
            0xfff2b8b5.toInt(), // DiffRemoved
            0xffefb8c8.toInt(), // DiffModified
            0xff3e4240.toInt(), // DiffAddedContainer
            0xff4b3e43.toInt(), // DiffRemovedContainer
            0xff5b655b.toInt(), // DiffAddedEmphasis
            0xff755c5f.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(57.0f, 400, 64.0f, 0.0f, false), // Display
            TypeToken(32.0f, 400, 40.0f, 0.0f, false), // Headline
            TypeToken(22.0f, 400, 28.0f, 0.0f, false), // Title
            TypeToken(16.0f, 500, 24.0f, 0.15f, false), // Subtitle
            TypeToken(16.0f, 400, 24.0f, 0.5f, false), // Body
            TypeToken(16.0f, 500, 24.0f, 0.15f, false), // BodyStrong
            TypeToken(14.0f, 500, 20.0f, 0.1f, false), // Label
            TypeToken(12.0f, 400, 16.0f, 0.4f, false), // Caption
            TypeToken(14.0f, 400, 20.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 4.0f, 12.0f, 16.0f, 28.0f, 1000.0f),
        floatArrayOf(0.0f, 4.0f, 8.0f, 16.0f, 24.0f, 32.0f, 48.0f),
    )

    val CUPERTINO: DesignTokenTable = DesignTokenTable(
        DesignSystem.Cupertino,
        "Apple Human Interface Guidelines, system colors and Dynamic Type, 2024",
        "SF Pro",
        "SF Mono",
        intArrayOf(
            0xff007aff.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff5856d6.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xffffffff.toInt(), // Surface
            0xff000000.toInt(), // OnSurface
            0xffe9e9eb.toInt(), // SurfaceVariant
            0xff3c3c43.toInt(), // OnSurfaceVariant
            0xfff2f2f7.toInt(), // Background
            0xff000000.toInt(), // OnBackground
            0xffc6c6c8.toInt(), // Outline
            0xffe5e5ea.toInt(), // OutlineVariant
            0xffff3b30.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xffffffff.toInt(), // SurfaceContainer
            0xffaf52de.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffd6e4ff.toInt(), // PrimaryContainer
            0xff003070.toInt(), // OnPrimaryContainer
            0xffe2e0ff.toInt(), // SecondaryContainer
            0xff2a1b70.toInt(), // OnSecondaryContainer
            0xfff3ddfb.toInt(), // TertiaryContainer
            0xff3d0b52.toInt(), // OnTertiaryContainer
            0xff9b2393.toInt(), // SyntaxKeyword
            0xffc41a16.toInt(), // SyntaxString
            0xff5d6c79.toInt(), // SyntaxComment
            0xff1c00cf.toInt(), // SyntaxNumber
            0xff6c36a9.toInt(), // SyntaxConstant
            0xff3900a0.toInt(), // SyntaxType
            0xff326d74.toInt(), // SyntaxFunction
            0xff000000.toInt(), // SyntaxVariable
            0xff326d74.toInt(), // SyntaxProperty
            0xff000000.toInt(), // SyntaxOperator
            0xff000000.toInt(), // SyntaxPunctuation
            0xff0b4f79.toInt(), // SyntaxTag
            0xff815f03.toInt(), // SyntaxAttribute
            0xff1c00cf.toInt(), // SyntaxEscape
            0xff643820.toInt(), // SyntaxMacro
            0xff087a2f.toInt(), // DiffAdded
            0xffce0014.toInt(), // DiffRemoved
            0xff007aff.toInt(), // DiffModified
            0xffe1efe6.toInt(), // DiffAddedContainer
            0xfff9e0e3.toInt(), // DiffRemovedContainer
            0xffb5d7c1.toInt(), // DiffAddedEmphasis
            0xfff0b3b9.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff0a84ff.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff5e5ce6.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xff1c1c1e.toInt(), // Surface
            0xffffffff.toInt(), // OnSurface
            0xff2c2c2e.toInt(), // SurfaceVariant
            0xffebebf5.toInt(), // OnSurfaceVariant
            0xff000000.toInt(), // Background
            0xffffffff.toInt(), // OnBackground
            0xff38383a.toInt(), // Outline
            0xff48484a.toInt(), // OutlineVariant
            0xffff453a.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xff1c1c1e.toInt(), // SurfaceContainer
            0xffbf5af2.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xff0a2d52.toInt(), // PrimaryContainer
            0xffcfe3ff.toInt(), // OnPrimaryContainer
            0xff262663.toInt(), // SecondaryContainer
            0xffdedcff.toInt(), // OnSecondaryContainer
            0xff3f1a52.toInt(), // TertiaryContainer
            0xfff1d9fa.toInt(), // OnTertiaryContainer
            0xfffc5fa3.toInt(), // SyntaxKeyword
            0xfffc6a5d.toInt(), // SyntaxString
            0xff798693.toInt(), // SyntaxComment
            0xffd0bf69.toInt(), // SyntaxNumber
            0xffa167e6.toInt(), // SyntaxConstant
            0xffd0a8ff.toInt(), // SyntaxType
            0xff67b7a4.toInt(), // SyntaxFunction
            0xffdfdfe0.toInt(), // SyntaxVariable
            0xff67b7a4.toInt(), // SyntaxProperty
            0xffdfdfe0.toInt(), // SyntaxOperator
            0xffdfdfe0.toInt(), // SyntaxPunctuation
            0xff5dd8ff.toInt(), // SyntaxTag
            0xffbf8555.toInt(), // SyntaxAttribute
            0xffd0bf69.toInt(), // SyntaxEscape
            0xfffd8f3f.toInt(), // SyntaxMacro
            0xff30d158.toInt(), // DiffAdded
            0xffff6e66.toInt(), // DiffRemoved
            0xff0a84ff.toInt(), // DiffModified
            0xff20402a.toInt(), // DiffAddedContainer
            0xff492c2c.toInt(), // DiffRemovedContainer
            0xff246435.toInt(), // DiffAddedEmphasis
            0xff773d3b.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(34.0f, 700, 41.0f, 0.37f, false), // Display
            TypeToken(28.0f, 400, 34.0f, 0.36f, false), // Headline
            TypeToken(22.0f, 400, 28.0f, 0.35f, false), // Title
            TypeToken(17.0f, 600, 22.0f, -0.41f, false), // Subtitle
            TypeToken(17.0f, 400, 22.0f, -0.41f, false), // Body
            TypeToken(17.0f, 600, 22.0f, -0.41f, false), // BodyStrong
            TypeToken(15.0f, 400, 20.0f, -0.24f, false), // Label
            TypeToken(12.0f, 400, 16.0f, 0.0f, false), // Caption
            TypeToken(15.0f, 400, 20.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 4.0f, 8.0f, 10.0f, 14.0f, 1000.0f),
        floatArrayOf(0.0f, 4.0f, 8.0f, 16.0f, 20.0f, 32.0f, 44.0f),
    )

    val FLUENT: DesignTokenTable = DesignTokenTable(
        DesignSystem.Fluent,
        "WinUI / Fluent 2 web and Windows tokens, fluent2.microsoft.design, 2024",
        "Segoe UI Variable",
        "Cascadia Mono",
        intArrayOf(
            0xff0f6cbd.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xffebf3fc.toInt(), // Secondary
            0xff0f548c.toInt(), // OnSecondary
            0xffffffff.toInt(), // Surface
            0xff242424.toInt(), // OnSurface
            0xffeaeaea.toInt(), // SurfaceVariant
            0xff424242.toInt(), // OnSurfaceVariant
            0xfff3f3f3.toInt(), // Background
            0xff242424.toInt(), // OnBackground
            0xffd1d1d1.toInt(), // Outline
            0xffe0e0e0.toInt(), // OutlineVariant
            0xffc50f1f.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xffffffff.toInt(), // SurfaceContainer
            0xff8764b8.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffcfe4fa.toInt(), // PrimaryContainer
            0xff0c3b5e.toInt(), // OnPrimaryContainer
            0xffb4d6fa.toInt(), // SecondaryContainer
            0xff0b3350.toInt(), // OnSecondaryContainer
            0xffe8dcf7.toInt(), // TertiaryContainer
            0xff341a5e.toInt(), // OnTertiaryContainer
            0xff0000ff.toInt(), // SyntaxKeyword
            0xffa31515.toInt(), // SyntaxString
            0xff008000.toInt(), // SyntaxComment
            0xff098658.toInt(), // SyntaxNumber
            0xff0070c1.toInt(), // SyntaxConstant
            0xff267f99.toInt(), // SyntaxType
            0xff795e26.toInt(), // SyntaxFunction
            0xff001080.toInt(), // SyntaxVariable
            0xff001080.toInt(), // SyntaxProperty
            0xff000000.toInt(), // SyntaxOperator
            0xff000000.toInt(), // SyntaxPunctuation
            0xff800000.toInt(), // SyntaxTag
            0xffe50000.toInt(), // SyntaxAttribute
            0xffee0000.toInt(), // SyntaxEscape
            0xffaf00db.toInt(), // SyntaxMacro
            0xff007b50.toInt(), // DiffAdded
            0xffa31515.toInt(), // DiffRemoved
            0xff0451a5.toInt(), // DiffModified
            0xffebf1dd.toInt(), // DiffAddedContainer
            0xffffcccc.toInt(), // DiffRemovedContainer
            0xffd7e8b1.toInt(), // DiffAddedEmphasis
            0xffff9999.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff479ef5.toInt(), // Primary
            0xff000000.toInt(), // OnPrimary
            0xff0c3b5e.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xff292929.toInt(), // Surface
            0xffffffff.toInt(), // OnSurface
            0xff333333.toInt(), // SurfaceVariant
            0xffd6d6d6.toInt(), // OnSurfaceVariant
            0xff1f1f1f.toInt(), // Background
            0xffffffff.toInt(), // OnBackground
            0xff666666.toInt(), // Outline
            0xff3d3d3d.toInt(), // OutlineVariant
            0xffdc626d.toInt(), // Error
            0xff000000.toInt(), // OnError
            0xff2b2b2b.toInt(), // SurfaceContainer
            0xffb18cd9.toInt(), // Tertiary
            0xff22103a.toInt(), // OnTertiary
            0xff0c3b5e.toInt(), // PrimaryContainer
            0xffcfe4fa.toInt(), // OnPrimaryContainer
            0xff123d61.toInt(), // SecondaryContainer
            0xffb4d6fa.toInt(), // OnSecondaryContainer
            0xff3b2159.toInt(), // TertiaryContainer
            0xffe8dcf7.toInt(), // OnTertiaryContainer
            0xff569cd6.toInt(), // SyntaxKeyword
            0xffce9178.toInt(), // SyntaxString
            0xff6f9e5a.toInt(), // SyntaxComment
            0xffb5cea8.toInt(), // SyntaxNumber
            0xff4fc1ff.toInt(), // SyntaxConstant
            0xff4ec9b0.toInt(), // SyntaxType
            0xffdcdcaa.toInt(), // SyntaxFunction
            0xff9cdcfe.toInt(), // SyntaxVariable
            0xff9cdcfe.toInt(), // SyntaxProperty
            0xffd4d4d4.toInt(), // SyntaxOperator
            0xffd4d4d4.toInt(), // SyntaxPunctuation
            0xff569cd6.toInt(), // SyntaxTag
            0xff9cdcfe.toInt(), // SyntaxAttribute
            0xffd7ba7d.toInt(), // SyntaxEscape
            0xffc586c0.toInt(), // SyntaxMacro
            0xffb5cea8.toInt(), // DiffAdded
            0xffce9178.toInt(), // DiffRemoved
            0xff569cd6.toInt(), // DiffModified
            0xff414733.toInt(), // DiffAddedContainer
            0xff552222.toInt(), // DiffRemovedContainer
            0xff536232.toInt(), // DiffAddedEmphasis
            0xff771b1b.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(40.0f, 600, 52.0f, 0.0f, false), // Display
            TypeToken(28.0f, 600, 36.0f, 0.0f, false), // Headline
            TypeToken(20.0f, 600, 28.0f, 0.0f, false), // Title
            TypeToken(16.0f, 600, 22.0f, 0.0f, false), // Subtitle
            TypeToken(14.0f, 400, 20.0f, 0.0f, false), // Body
            TypeToken(14.0f, 600, 20.0f, 0.0f, false), // BodyStrong
            TypeToken(12.0f, 400, 16.0f, 0.0f, false), // Label
            TypeToken(12.0f, 400, 16.0f, 0.0f, false), // Caption
            TypeToken(13.0f, 400, 18.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 2.0f, 3.0f, 4.0f, 8.0f, 1000.0f),
        floatArrayOf(0.0f, 2.0f, 4.0f, 8.0f, 12.0f, 20.0f, 32.0f),
    )

    val GNOME: DesignTokenTable = DesignTokenTable(
        DesignSystem.Gnome,
        "GNOME Human Interface Guidelines and the libadwaita named colours, GNOME 50",
        "Cantarell",
        "Source Code Pro",
        intArrayOf(
            0xff3584e4.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff9141ac.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xffffffff.toInt(), // Surface
            0xff2e3436.toInt(), // OnSurface
            0xffebebeb.toInt(), // SurfaceVariant
            0xff5e5c64.toInt(), // OnSurfaceVariant
            0xfffafafa.toInt(), // Background
            0xff2e3436.toInt(), // OnBackground
            0xffcdc7c2.toInt(), // Outline
            0xffe6e3e1.toInt(), // OutlineVariant
            0xffe01b24.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xffebebeb.toInt(), // SurfaceContainer
            0xff2190a4.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffd4e5fb.toInt(), // PrimaryContainer
            0xff0d3b70.toInt(), // OnPrimaryContainer
            0xffecd9f1.toInt(), // SecondaryContainer
            0xff45164f.toInt(), // OnSecondaryContainer
            0xffcfe9ed.toInt(), // TertiaryContainer
            0xff0a3d45.toInt(), // OnTertiaryContainer
            0xffba4100.toInt(), // SyntaxKeyword
            0xff007778.toInt(), // SyntaxString
            0xff6a6a6e.toInt(), // SyntaxComment
            0xff4e57ba.toInt(), // SyntaxNumber
            0xff4e57ba.toInt(), // SyntaxConstant
            0xff007778.toInt(), // SyntaxType
            0xff0067cd.toInt(), // SyntaxFunction
            0xff3b7800.toInt(), // SyntaxVariable
            0xff504e55.toInt(), // SyntaxProperty
            0xff504e55.toInt(), // SyntaxOperator
            0xff504e55.toInt(), // SyntaxPunctuation
            0xff007778.toInt(), // SyntaxTag
            0xffba4100.toInt(), // SyntaxAttribute
            0xffd01a2a.toInt(), // SyntaxEscape
            0xffba4100.toInt(), // SyntaxMacro
            0xff006a6b.toInt(), // DiffAdded
            0xffae2d23.toInt(), // DiffRemoved
            0xffe66100.toInt(), // DiffModified
            0xffcfdcdc.toInt(), // DiffAddedContainer
            0xffe4d4d3.toInt(), // DiffRemovedContainer
            0xffa5c4c5.toInt(), // DiffAddedEmphasis
            0xffd9b2af.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff3584e4.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xffc061cb.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xff1e1e1e.toInt(), // Surface
            0xffffffff.toInt(), // OnSurface
            0xff303030.toInt(), // SurfaceVariant
            0xffc0bfbc.toInt(), // OnSurfaceVariant
            0xff242424.toInt(), // Background
            0xffffffff.toInt(), // OnBackground
            0xff52514f.toInt(), // Outline
            0xff3a3a3a.toInt(), // OutlineVariant
            0xffff7b63.toInt(), // Error
            0xff2a0a06.toInt(), // OnError
            0xff303030.toInt(), // SurfaceContainer
            0xff2190a4.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xff1b3c5e.toInt(), // PrimaryContainer
            0xffcfe0f7.toInt(), // OnPrimaryContainer
            0xff44234c.toInt(), // SecondaryContainer
            0xffecd9f1.toInt(), // OnSecondaryContainer
            0xff134249.toInt(), // TertiaryContainer
            0xffcfe9ed.toInt(), // OnTertiaryContainer
            0xffffa348.toInt(), // SyntaxKeyword
            0xff5bc8af.toInt(), // SyntaxString
            0xff999898.toInt(), // SyntaxComment
            0xff8794d2.toInt(), // SyntaxNumber
            0xff8794d2.toInt(), // SyntaxConstant
            0xff5bc8af.toInt(), // SyntaxType
            0xff62a0ea.toInt(), // SyntaxFunction
            0xff5dab1e.toInt(), // SyntaxVariable
            0xffc0bfbc.toInt(), // SyntaxProperty
            0xffc0bfbc.toInt(), // SyntaxOperator
            0xffc0bfbc.toInt(), // SyntaxPunctuation
            0xff33b2a4.toInt(), // SyntaxTag
            0xffff7800.toInt(), // SyntaxAttribute
            0xfffd6656.toInt(), // SyntaxEscape
            0xfffb7018.toInt(), // SyntaxMacro
            0xff56cebf.toInt(), // DiffAdded
            0xffffa295.toInt(), // DiffRemoved
            0xffff7800.toInt(), // DiffModified
            0xff38504d.toInt(), // DiffAddedContainer
            0xff594744.toInt(), // DiffRemovedContainer
            0xff3f6f69.toInt(), // DiffAddedEmphasis
            0xff835e58.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(44.0f, 800, 52.0f, -0.5f, false), // Display
            TypeToken(32.0f, 800, 40.0f, -0.25f, false), // Headline
            TypeToken(24.0f, 700, 32.0f, 0.0f, false), // Title
            TypeToken(20.0f, 700, 28.0f, 0.0f, false), // Subtitle
            TypeToken(15.0f, 400, 22.0f, 0.0f, false), // Body
            TypeToken(15.0f, 700, 22.0f, 0.0f, false), // BodyStrong
            TypeToken(13.0f, 700, 18.0f, 0.1f, false), // Label
            TypeToken(12.0f, 400, 16.0f, 0.0f, false), // Caption
            TypeToken(14.0f, 400, 20.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 4.0f, 6.0f, 12.0f, 15.0f, 1000.0f),
        floatArrayOf(0.0f, 3.0f, 6.0f, 12.0f, 18.0f, 24.0f, 36.0f),
    )

    val BREEZE: DesignTokenTable = DesignTokenTable(
        DesignSystem.Breeze,
        "KDE Breeze colour schemes and the KDE Human Interface Guidelines, Plasma 6",
        "Noto Sans",
        "Hack",
        intArrayOf(
            0xff3daee9.toInt(), // Primary
            0xff06222e.toInt(), // OnPrimary
            0xff16a085.toInt(), // Secondary
            0xff03201b.toInt(), // OnSecondary
            0xfffcfcfc.toInt(), // Surface
            0xff232629.toInt(), // OnSurface
            0xffe1e3e5.toInt(), // SurfaceVariant
            0xff4d5052.toInt(), // OnSurfaceVariant
            0xffeff0f1.toInt(), // Background
            0xff232629.toInt(), // OnBackground
            0xffbdc3c7.toInt(), // Outline
            0xffd8dbdd.toInt(), // OutlineVariant
            0xffda4453.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xfffcfcfc.toInt(), // SurfaceContainer
            0xfff67400.toInt(), // Tertiary
            0xff2b1200.toInt(), // OnTertiary
            0xffd3ecf9.toInt(), // PrimaryContainer
            0xff0b3b52.toInt(), // OnPrimaryContainer
            0xffd2ece5.toInt(), // SecondaryContainer
            0xff083b31.toInt(), // OnSecondaryContainer
            0xfffae0c4.toInt(), // TertiaryContainer
            0xff4a2c00.toInt(), // OnTertiaryContainer
            0xff1f1c1b.toInt(), // SyntaxKeyword
            0xffbf0303.toInt(), // SyntaxString
            0xff747473.toInt(), // SyntaxComment
            0xff966d00.toInt(), // SyntaxNumber
            0xffaa5500.toInt(), // SyntaxConstant
            0xff0057ae.toInt(), // SyntaxType
            0xff644a9b.toInt(), // SyntaxFunction
            0xff0057ae.toInt(), // SyntaxVariable
            0xff0057ae.toInt(), // SyntaxProperty
            0xffaf48b1.toInt(), // SyntaxOperator
            0xff1f1c1b.toInt(), // SyntaxPunctuation
            0xff1f1c1b.toInt(), // SyntaxTag
            0xff0057ae.toInt(), // SyntaxAttribute
            0xff007bac.toInt(), // SyntaxEscape
            0xff006e28.toInt(), // SyntaxMacro
            0xff0057ae.toInt(), // DiffAdded
            0xffbf0303.toInt(), // DiffRemoved
            0xfffdbc4b.toInt(), // DiffModified
            0xffdee8f3.toInt(), // DiffAddedContainer
            0xfff5dede.toInt(), // DiffRemovedContainer
            0xffb0cae5.toInt(), // DiffAddedEmphasis
            0xffeab1b1.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff3daee9.toInt(), // Primary
            0xff06222e.toInt(), // OnPrimary
            0xff1abc9c.toInt(), // Secondary
            0xff03201b.toInt(), // OnSecondary
            0xff1b1e20.toInt(), // Surface
            0xfffcfcfc.toInt(), // OnSurface
            0xff31363b.toInt(), // SurfaceVariant
            0xffbdc3c7.toInt(), // OnSurfaceVariant
            0xff232629.toInt(), // Background
            0xfffcfcfc.toInt(), // OnBackground
            0xff4d5155.toInt(), // Outline
            0xff3f4449.toInt(), // OutlineVariant
            0xffed8079.toInt(), // Error
            0xff2a0806.toInt(), // OnError
            0xff1b1e20.toInt(), // SurfaceContainer
            0xfff8a44c.toInt(), // Tertiary
            0xff2b1200.toInt(), // OnTertiary
            0xff123b4f.toInt(), // PrimaryContainer
            0xffcde6f5.toInt(), // OnPrimaryContainer
            0xff103a32.toInt(), // SecondaryContainer
            0xffcfe8e0.toInt(), // OnSecondaryContainer
            0xff4a3113.toInt(), // TertiaryContainer
            0xfff8dfc3.toInt(), // OnTertiaryContainer
            0xffcfcfc2.toInt(), // SyntaxKeyword
            0xfff44f4f.toInt(), // SyntaxString
            0xff848687.toInt(), // SyntaxComment
            0xfff67400.toInt(), // SyntaxNumber
            0xff27aeae.toInt(), // SyntaxConstant
            0xff3b8dc7.toInt(), // SyntaxType
            0xffb266d1.toInt(), // SyntaxFunction
            0xff27aeae.toInt(), // SyntaxVariable
            0xff27aeae.toInt(), // SyntaxProperty
            0xff519269.toInt(), // SyntaxOperator
            0xffcfcfc2.toInt(), // SyntaxPunctuation
            0xffcfcfc2.toInt(), // SyntaxTag
            0xff3b8dc7.toInt(), // SyntaxAttribute
            0xff3daee9.toInt(), // SyntaxEscape
            0xff27ae60.toInt(), // SyntaxMacro
            0xff2cb1b1.toInt(), // DiffAdded
            0xffff736e.toInt(), // DiffRemoved
            0xffc04900.toInt(), // DiffModified
            0xff1e3b3d.toInt(), // DiffAddedContainer
            0xff492f30.toInt(), // DiffRemovedContainer
            0xff22595a.toInt(), // DiffAddedEmphasis
            0xff76403f.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(34.0f, 600, 40.0f, 0.0f, false), // Display
            TypeToken(26.0f, 600, 32.0f, 0.0f, false), // Headline
            TypeToken(19.0f, 600, 24.0f, 0.0f, false), // Title
            TypeToken(16.0f, 500, 21.0f, 0.0f, false), // Subtitle
            TypeToken(13.0f, 400, 19.0f, 0.0f, false), // Body
            TypeToken(13.0f, 600, 19.0f, 0.0f, false), // BodyStrong
            TypeToken(12.0f, 500, 16.0f, 0.2f, false), // Label
            TypeToken(11.0f, 400, 15.0f, 0.0f, false), // Caption
            TypeToken(12.0f, 400, 17.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 2.0f, 3.0f, 4.0f, 6.0f, 1000.0f),
        floatArrayOf(0.0f, 2.0f, 4.0f, 8.0f, 12.0f, 18.0f, 24.0f),
    )

    val DEEPIN: DesignTokenTable = DesignTokenTable(
        DesignSystem.Deepin,
        "Deepin Design specification and the DTK control defaults, deepin 23",
        "Noto Sans",
        "Noto Sans Mono",
        intArrayOf(
            0xff0081ff.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xfff2a13c.toInt(), // Secondary
            0xff2b1a05.toInt(), // OnSecondary
            0xffffffff.toInt(), // Surface
            0xff202020.toInt(), // OnSurface
            0xffe6e6e6.toInt(), // SurfaceVariant
            0xff5a5a5a.toInt(), // OnSurfaceVariant
            0xffffffff.toInt(), // Background
            0xff202020.toInt(), // OnBackground
            0xffcdcdcd.toInt(), // Outline
            0xffe0e0e0.toInt(), // OutlineVariant
            0xffff5736.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xfff1f1f1.toInt(), // SurfaceContainer
            0xff7a5bd6.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffd8ecff.toInt(), // PrimaryContainer
            0xff00407f.toInt(), // OnPrimaryContainer
            0xfffdf0e1.toInt(), // SecondaryContainer
            0xff79501e.toInt(), // OnSecondaryContainer
            0xffebe6f8.toInt(), // TertiaryContainer
            0xff3d2d6b.toInt(), // OnTertiaryContainer
            0xff006bd5.toInt(), // SyntaxKeyword
            0xff7758d3.toInt(), // SyntaxString
            0xff5a5a5a.toInt(), // SyntaxComment
            0xff3d2d6b.toInt(), // SyntaxNumber
            0xff3d2d6b.toInt(), // SyntaxConstant
            0xff9b5e00.toInt(), // SyntaxType
            0xff00407f.toInt(), // SyntaxFunction
            0xff202020.toInt(), // SyntaxVariable
            0xff79501e.toInt(), // SyntaxProperty
            0xff5a5a5a.toInt(), // SyntaxOperator
            0xff5a5a5a.toInt(), // SyntaxPunctuation
            0xff006bd5.toInt(), // SyntaxTag
            0xff9b5e00.toInt(), // SyntaxAttribute
            0xffcd3416.toInt(), // SyntaxEscape
            0xff9b5e00.toInt(), // SyntaxMacro
            0xff007118.toInt(), // DiffAdded
            0xffbb2608.toInt(), // DiffRemoved
            0xff7a5bd6.toInt(), // DiffModified
            0xffd4e2d7.toInt(), // DiffAddedContainer
            0xffebd9d5.toInt(), // DiffRemovedContainer
            0xffa9cbb0.toInt(), // DiffAddedEmphasis
            0xffe1b4ab.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff3ba2ff.toInt(), // Primary
            0xff04203a.toInt(), // OnPrimary
            0xffffb964.toInt(), // Secondary
            0xff33200a.toInt(), // OnSecondary
            0xff2a2a2a.toInt(), // Surface
            0xfff0f0f0.toInt(), // OnSurface
            0xff3a3a3a.toInt(), // SurfaceVariant
            0xffb4b4b4.toInt(), // OnSurfaceVariant
            0xff1a1a1a.toInt(), // Background
            0xfff0f0f0.toInt(), // OnBackground
            0xff4d4d4d.toInt(), // Outline
            0xff333333.toInt(), // OutlineVariant
            0xffff8a73.toInt(), // Error
            0xff34110a.toInt(), // OnError
            0xff2a2a2a.toInt(), // SurfaceContainer
            0xff9f8ae3.toInt(), // Tertiary
            0xff1d0f45.toInt(), // OnTertiary
            0xff203547.toInt(), // PrimaryContainer
            0xff9dd0ff.toInt(), // OnPrimaryContainer
            0xff473928.toInt(), // SecondaryContainer
            0xffffdcb1.toInt(), // OnSecondaryContainer
            0xff343042.toInt(), // TertiaryContainer
            0xffcfc4f1.toInt(), // OnTertiaryContainer
            0xff3ba2ff.toInt(), // SyntaxKeyword
            0xff9f8ae3.toInt(), // SyntaxString
            0xffb4b4b4.toInt(), // SyntaxComment
            0xffcfc4f1.toInt(), // SyntaxNumber
            0xffcfc4f1.toInt(), // SyntaxConstant
            0xffffb964.toInt(), // SyntaxType
            0xff9dd0ff.toInt(), // SyntaxFunction
            0xfff0f0f0.toInt(), // SyntaxVariable
            0xffffdcb1.toInt(), // SyntaxProperty
            0xffb4b4b4.toInt(), // SyntaxOperator
            0xffb4b4b4.toInt(), // SyntaxPunctuation
            0xff3ba2ff.toInt(), // SyntaxTag
            0xffffb964.toInt(), // SyntaxAttribute
            0xffff8a73.toInt(), // SyntaxEscape
            0xffffb964.toInt(), // SyntaxMacro
            0xff76c270.toInt(), // DiffAdded
            0xffff9783.toInt(), // DiffRemoved
            0xff9f8ae3.toInt(), // DiffModified
            0xff394838.toInt(), // DiffAddedContainer
            0xff55403c.toInt(), // DiffRemovedContainer
            0xff486746.toInt(), // DiffAddedEmphasis
            0xff7f564e.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(40.0f, 600, 50.0f, 0.0f, false), // Display
            TypeToken(30.0f, 600, 38.0f, 0.0f, false), // Headline
            TypeToken(22.0f, 500, 30.0f, 0.0f, false), // Title
            TypeToken(18.0f, 500, 26.0f, 0.0f, false), // Subtitle
            TypeToken(14.0f, 400, 21.0f, 0.0f, false), // Body
            TypeToken(14.0f, 600, 21.0f, 0.0f, false), // BodyStrong
            TypeToken(13.0f, 500, 18.0f, 0.3f, false), // Label
            TypeToken(12.0f, 400, 17.0f, 0.0f, false), // Caption
            TypeToken(13.0f, 400, 19.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 6.0f, 8.0f, 10.0f, 18.0f, 1000.0f),
        floatArrayOf(0.0f, 4.0f, 10.0f, 16.0f, 20.0f, 30.0f, 40.0f),
    )

    val LIQUID_GLASS: DesignTokenTable = DesignTokenTable(
        DesignSystem.LiquidGlass,
        "Apple Human Interface Guidelines, Liquid Glass, system colors and Dynamic Type, 2026",
        "SF Pro",
        "SF Mono",
        intArrayOf(
            0xff007aff.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff5856d6.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xffffffff.toInt(), // Surface
            0xff000000.toInt(), // OnSurface
            0xffe9e9eb.toInt(), // SurfaceVariant
            0xff3c3c43.toInt(), // OnSurfaceVariant
            0xffffffff.toInt(), // Background
            0xff000000.toInt(), // OnBackground
            0xffc6c6c8.toInt(), // Outline
            0xffe5e5ea.toInt(), // OutlineVariant
            0xffff3b30.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xfff2f2f7.toInt(), // SurfaceContainer
            0xffaf52de.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xffd6e4ff.toInt(), // PrimaryContainer
            0xff003070.toInt(), // OnPrimaryContainer
            0xffe2e0ff.toInt(), // SecondaryContainer
            0xff2a1b70.toInt(), // OnSecondaryContainer
            0xfff3ddfb.toInt(), // TertiaryContainer
            0xff3d0b52.toInt(), // OnTertiaryContainer
            0xff9b2393.toInt(), // SyntaxKeyword
            0xffc41a16.toInt(), // SyntaxString
            0xff5d6c79.toInt(), // SyntaxComment
            0xff1c00cf.toInt(), // SyntaxNumber
            0xff6c36a9.toInt(), // SyntaxConstant
            0xff3900a0.toInt(), // SyntaxType
            0xff326d74.toInt(), // SyntaxFunction
            0xff000000.toInt(), // SyntaxVariable
            0xff326d74.toInt(), // SyntaxProperty
            0xff000000.toInt(), // SyntaxOperator
            0xff000000.toInt(), // SyntaxPunctuation
            0xff0b4f79.toInt(), // SyntaxTag
            0xff815f03.toInt(), // SyntaxAttribute
            0xff1c00cf.toInt(), // SyntaxEscape
            0xff643820.toInt(), // SyntaxMacro
            0xff00722a.toInt(), // DiffAdded
            0xffc40012.toInt(), // DiffRemoved
            0xff007aff.toInt(), // DiffModified
            0xffd5e3de.toInt(), // DiffAddedContainer
            0xffecd5dc.toInt(), // DiffRemovedContainer
            0xffa9ccb9.toInt(), // DiffAddedEmphasis
            0xffe4a9b2.toInt(), // DiffRemovedEmphasis
        ),
        intArrayOf(
            0xff0a84ff.toInt(), // Primary
            0xffffffff.toInt(), // OnPrimary
            0xff5e5ce6.toInt(), // Secondary
            0xffffffff.toInt(), // OnSecondary
            0xff1c1c1e.toInt(), // Surface
            0xffffffff.toInt(), // OnSurface
            0xff2c2c2e.toInt(), // SurfaceVariant
            0xffebebf5.toInt(), // OnSurfaceVariant
            0xff000000.toInt(), // Background
            0xffffffff.toInt(), // OnBackground
            0xff38383a.toInt(), // Outline
            0xff48484a.toInt(), // OutlineVariant
            0xffff453a.toInt(), // Error
            0xffffffff.toInt(), // OnError
            0xff1c1c1e.toInt(), // SurfaceContainer
            0xffbf5af2.toInt(), // Tertiary
            0xffffffff.toInt(), // OnTertiary
            0xff0a2d52.toInt(), // PrimaryContainer
            0xffcfe3ff.toInt(), // OnPrimaryContainer
            0xff262663.toInt(), // SecondaryContainer
            0xffdedcff.toInt(), // OnSecondaryContainer
            0xff3f1a52.toInt(), // TertiaryContainer
            0xfff1d9fa.toInt(), // OnTertiaryContainer
            0xfffc5fa3.toInt(), // SyntaxKeyword
            0xfffc6a5d.toInt(), // SyntaxString
            0xff798693.toInt(), // SyntaxComment
            0xffd0bf69.toInt(), // SyntaxNumber
            0xffa167e6.toInt(), // SyntaxConstant
            0xffd0a8ff.toInt(), // SyntaxType
            0xff67b7a4.toInt(), // SyntaxFunction
            0xffdfdfe0.toInt(), // SyntaxVariable
            0xff67b7a4.toInt(), // SyntaxProperty
            0xffdfdfe0.toInt(), // SyntaxOperator
            0xffdfdfe0.toInt(), // SyntaxPunctuation
            0xff5dd8ff.toInt(), // SyntaxTag
            0xffbf8555.toInt(), // SyntaxAttribute
            0xffd0bf69.toInt(), // SyntaxEscape
            0xfffd8f3f.toInt(), // SyntaxMacro
            0xff30d158.toInt(), // DiffAdded
            0xffff6e66.toInt(), // DiffRemoved
            0xff0a84ff.toInt(), // DiffModified
            0xff20402a.toInt(), // DiffAddedContainer
            0xff492c2c.toInt(), // DiffRemovedContainer
            0xff246435.toInt(), // DiffAddedEmphasis
            0xff773d3b.toInt(), // DiffRemovedEmphasis
        ),
        arrayOf(
            TypeToken(34.0f, 700, 41.0f, 0.37f, false), // Display
            TypeToken(28.0f, 700, 34.0f, 0.36f, false), // Headline
            TypeToken(22.0f, 700, 28.0f, 0.35f, false), // Title
            TypeToken(17.0f, 600, 22.0f, -0.41f, false), // Subtitle
            TypeToken(17.0f, 400, 22.0f, -0.41f, false), // Body
            TypeToken(17.0f, 600, 22.0f, -0.41f, false), // BodyStrong
            TypeToken(15.0f, 600, 20.0f, -0.24f, false), // Label
            TypeToken(12.0f, 500, 16.0f, 0.0f, false), // Caption
            TypeToken(15.0f, 400, 20.0f, 0.0f, true), // Mono
        ),
        floatArrayOf(0.0f, 6.0f, 10.0f, 16.0f, 22.0f, 1000.0f),
        floatArrayOf(0.0f, 4.0f, 10.0f, 18.0f, 24.0f, 36.0f, 48.0f),
    )

    fun of(system: DesignSystem): DesignTokenTable = when (system) {
        DesignSystem.Material3 -> MATERIAL3
        DesignSystem.Cupertino -> CUPERTINO
        DesignSystem.Fluent -> FLUENT
        DesignSystem.Gnome -> GNOME
        DesignSystem.Breeze -> BREEZE
        DesignSystem.Deepin -> DEEPIN
        DesignSystem.LiquidGlass -> LIQUID_GLASS
    }
}