vtcode-core 0.172.1

//! Renderer construction and display-state accessors.

use super::*;

use crate::config::ToolDisplayMode;
use crate::config::loader::SyntaxHighlightingConfig;
use crate::ui::tui::{InlineHandle, InlineMessageKind};
use crate::utils::ansi_capabilities::AnsiCapabilities;
use anstream::{AutoStream, ColorChoice};
use std::io;
use vtcode_commons::color_policy::{self, ColorOutputPolicySource};
use vtcode_commons::ui_protocol::ToolOutputId;

impl AnsiRenderer {
    /// Create a new renderer for stdout
    pub fn stdout() -> Self {
        let mut capabilities = AnsiCapabilities::detect();
        let policy = color_policy::current_color_output_policy();

        if !policy.enabled {
            capabilities.no_color = true;
            capabilities.force_color = false;
        } else if matches!(
            policy.source,
            ColorOutputPolicySource::CliColorAlways | ColorOutputPolicySource::ConfigOverride
        ) {
            capabilities.no_color = false;
            capabilities.force_color = true;
        }

        let color = capabilities.supports_color();
        let choice = if !color {
            ColorChoice::Never
        } else if matches!(
            policy.source,
            ColorOutputPolicySource::CliColorAlways | ColorOutputPolicySource::ConfigOverride
        ) {
            ColorChoice::Always
        } else {
            ColorChoice::Auto
        };
        Self {
            writer: AutoStream::new(io::stdout(), choice),
            buffer: String::with_capacity(1024),
            color,
            sink: None,
            last_line_was_empty: false,
            highlight_config: SyntaxHighlightingConfig::default(),
            capabilities,
            reasoning_visible: true,
            screen_reader_mode: false,
            show_diagnostics_in_transcript: false,
            tool_display_mode: ToolDisplayMode::Compact,
            diff_preview_mode: vtcode_commons::ui_protocol::DiffPreviewMode::Inline,
            compact_command_group: None,
            next_compact_group_id: 0,
            pending_tool_output_anchor: None,
            session_expand_anchor: None,
            session_body: false,
        }
    }

    /// Create a renderer that forwards output to the inline UI session handle
    pub fn with_inline_ui(handle: InlineHandle, highlight_config: SyntaxHighlightingConfig) -> Self {
        let mut renderer = Self::stdout();
        renderer.highlight_config = highlight_config.clone();
        renderer.sink = Some(InlineSink::new(handle, highlight_config));
        renderer.last_line_was_empty = false;
        renderer
    }

    /// Override the syntax highlighting configuration.
    pub fn set_highlight_config(&mut self, config: SyntaxHighlightingConfig) {
        if let Some(sink) = &mut self.sink {
            sink.set_highlight_config(config.clone());
        }
        self.highlight_config = config;
    }

    /// Associate the next summary line with a captured tool output block.
    ///
    /// This edge is UI-only. It is carried directly on the summary command so
    /// repeated commands remain associated with their own captures even when
    /// completions are interleaved.
    pub fn set_next_tool_output_anchor(&mut self, id: ToolOutputId) {
        self.pending_tool_output_anchor = Some(id);
    }

    /// Remember which capture a forthcoming exec-session expand notice should
    /// open. Unlike [`Self::set_next_tool_output_anchor`] this survives body
    /// lines and is consumed only when the notice is emitted.
    pub fn set_session_expand_anchor(&mut self, id: ToolOutputId) {
        self.session_expand_anchor = Some(id);
    }

    /// Take the pending session expand anchor, if any.
    pub fn take_session_expand_anchor(&mut self) -> Option<ToolOutputId> {
        self.session_expand_anchor.take()
    }

    /// Mark the upcoming stream body as an exec-session stdin/stdout capture
    /// (dim + expand), even when the tool name alone would look like a launch.
    pub fn set_session_body(&mut self, session_body: bool) {
        self.session_body = session_body;
    }

    /// Whether the upcoming stream body should use the exec-session path.
    pub fn session_body_active(&self) -> bool {
        self.session_body
    }

    /// Check if the last line rendered was empty
    pub fn was_previous_line_empty(&self) -> bool {
        self.last_line_was_empty
    }

    pub(super) fn message_kind(style: MessageStyle) -> InlineMessageKind {
        style.message_kind()
    }

    pub fn supports_streaming_markdown(&self) -> bool {
        self.sink.is_some()
    }

    /// Determine whether the renderer is connected to the inline UI.
    ///
    /// Inline rendering uses the terminal session scrollback, so tool output should
    /// avoid truncation that would otherwise be applied in compact CLI mode.
    pub fn prefers_untruncated_output(&self) -> bool {
        self.sink.is_some()
    }

    pub fn supports_inline_ui(&self) -> bool {
        self.sink.is_some()
    }

    pub fn set_reasoning_visible(&mut self, visible: bool) {
        self.reasoning_visible = visible;
    }

    pub fn reasoning_visible(&self) -> bool {
        self.reasoning_visible
    }

    /// Whether rendered output is streamed into an inline TUI sink (as opposed to
    /// written directly to a terminal writer).
    pub fn writes_to_inline_sink(&self) -> bool {
        self.sink.is_some()
    }

    pub fn set_screen_reader_mode(&mut self, enabled: bool) {
        self.screen_reader_mode = enabled;
    }

    pub fn set_show_diagnostics_in_transcript(&mut self, enabled: bool) {
        self.show_diagnostics_in_transcript = if cfg!(debug_assertions) { enabled } else { false };
    }

    pub fn set_tool_display_mode(&mut self, mode: ToolDisplayMode) {
        self.flush_compact_command_group();
        self.tool_display_mode = match mode {
            ToolDisplayMode::Compact => ToolDisplayMode::Compact,
            ToolDisplayMode::Expanded | ToolDisplayMode::Unknown => ToolDisplayMode::Expanded,
        };
    }

    pub fn tool_display_mode(&self) -> ToolDisplayMode {
        self.tool_display_mode
    }

    /// Whether per-call tool transitions render in compact (grouped) form.
    ///
    /// Single source of truth for the compact-vs-expanded decision so every
    /// call site agrees; the stored mode is already normalized to
    /// `Compact`/`Expanded` by [`Self::set_tool_display_mode`].
    pub fn is_compact_display(&self) -> bool {
        self.tool_display_mode == ToolDisplayMode::Compact
    }

    pub fn set_diff_preview_mode(&mut self, mode: vtcode_commons::ui_protocol::DiffPreviewMode) {
        self.diff_preview_mode = mode;
    }

    /// Attach a completed-edit review payload so the TUI can expand on demand.
    pub fn record_diff_review(&self, anchor: vtcode_commons::ui_protocol::DiffReviewAnchor) {
        if let Some(sink) = &self.sink {
            sink.handle.record_diff_review(anchor);
        }
    }

    pub fn diff_preview_mode(&self) -> vtcode_commons::ui_protocol::DiffPreviewMode {
        self.diff_preview_mode
    }

    pub fn toggle_tool_display_mode(&mut self) -> ToolDisplayMode {
        self.flush_compact_command_group();
        let next = match self.tool_display_mode {
            ToolDisplayMode::Expanded | ToolDisplayMode::Unknown => ToolDisplayMode::Compact,
            ToolDisplayMode::Compact => ToolDisplayMode::Expanded,
        };
        self.tool_display_mode = next;
        next
    }
}