BREP_app 0.2.0

//! The SHARED schema-driven FORM VIEW — one function that draws a COMPLETE form
//! for a schema-described subject (a history feature, an assembly constraint, a
//! future PMI annotation) and returns what the user did.
//!
//! [`form::field_input`] is the shared per-FIELD renderer; this is the shared
//! per-FORM renderer above it. Before it existed, four call sites hand-rolled
//! their own chrome, grouping and layout around the same widget dispatcher — and
//! the docs screenshot rig's layout had already silently drifted away from the
//! app's. One form view means the layout is a ONE-place change.
//!
//! # The layout
//!
//! ```text
//!   E3  ⟠ Extrude                 ← title
//!   ─────────────────────────
//!   ⚠ <error message>             ← banner (only when the subject failed)
//!
//!   Profile                       ← a reference field: label, full-width
//!   [ ▣ Select sketch          ]    activation button, and the chosen entities
//!     • Sketch1            [✕]      listed BENEATH it — never behind a `[+]`
//!
//!   Distance                      ← every other field: label ABOVE a
//!   [ 25                       ]    full-width input
//!
//!   ▼ Boolean                     ← accordion, open by default
//!   ▶ Transform                   ← accordion, COLLAPSED by default
//!   ▶ Outputs                     ← read-only, collapsed by default
//!
//!   [      Return to tree      ]  ← the ONE bottom button
//! ```
//!
//! Section order is References → Parameters → the remaining groups in schema
//! order → Transform → the read-only trailing sections. References lead because
//! they are what the user picks and they are the tallest thing on the form;
//! Transform trails because it is the one the owner asked to collapse.
//!
//! # It renders; it does not mutate any engine
//!
//! The inputs are exactly `(ui, spec, &mut params)` — **no `EngineState`, no
//! runner, no document**. That is deliberate and load-bearing: the headless docs
//! generator (`examples/capture_dialogs.rs`) has none of those, so requiring one
//! would make "the docs image generator uses the same code as the UI"
//! impossible. Everything that needs an engine — activating the reference
//! picker, acting on a schema `button`, committing the edited params, leaving
//! the form — comes back OUT as a value in [`FormViewOut`] that the calling
//! panel acts on AFTER the draw. (A commit callback would have to capture
//! `&mut EngineState` while `params` is itself read out of that engine and the
//! panel already holds it for the frame — three overlapping mutable borrows.)
//!
//! # Transient view state
//!
//! Which accordions are open is pure view state, so it lives in egui MEMORY
//! keyed by (`hits_prefix`, `title`, section) rather than in a caller-owned set
//! — that is what keeps the required inputs at `(ui, spec, &mut params)` for the
//! headless caller.

use crate::form;
use brep_render::style::{FieldKind, FormField};
use eframe::egui;
use serde_json::Value;
use std::collections::HashMap;

/// Groups that are drawn as a COLLAPSED accordion by default. `Transform` is the
/// owner's explicit call (R6); the read-only trailing sections join it because
/// they report, they do not edit. Everything else opens by default — a section
/// the user must click to see is a section they will miss.
const COLLAPSED_BY_DEFAULT: &[&str] = &["Transform", "Outputs"];

/// Everything ABOUT the form that the consumer supplies. Borrowed; the form view
/// holds no state of its own beyond egui memory.
pub struct FormViewSpec<'a> {
    /// The form's heading — e.g. `"E3  ⟠ Extrude"`. Also the scope key for this
    /// form's transient view state and per-field widget ids, so it must be
    /// STABLE and UNIQUE per subject (a feature id / constraint id qualifies).
    pub title: &'a str,
    /// An optional second line under the title (a status, a type name…).
    pub subtitle: Option<&'a str>,
    /// The schema fields to render, in schema order.
    pub fields: &'a [FormField],
    /// A message banner drawn under the title — e.g. the feature's run error.
    pub banner: Option<(&'a str, egui::Color32)>,
    /// Read-only sections appended after the fields — e.g. `[("Outputs", …)]`.
    pub trailing: Option<&'a [(&'a str, Vec<String>)]>,
    /// The bottom button's label. Both of today's consumers say "Return to
    /// tree" — the history feature list and the constraint list are BOTH drawn
    /// by `panels::tree`, so the word is literal, not a metaphor (Q12). A
    /// consumer whose list is NOT a tree supplies its own wording here.
    pub exit_label: &'a str,
    /// Whether this consumer's subject lives in a ROLLED history — i.e. whether
    /// LEAVING the form also means "roll the model back to the tip".
    ///
    /// The form view holds no engine and therefore cannot roll anything itself
    /// (that is [`FormViewOut::roll_to_tip`], which the caller acts on). What
    /// this flag does is decide, in ONE place, whether an exit *carries* that
    /// intent — so no consumer has to hard-code "am I the history panel?" at its
    /// exit arm. The history panel passes `true`; assembly constraints have no
    /// rollback at all (the owner's call) and pass `false`, which is why their
    /// panel has no roll branch to get wrong.
    pub rollback: bool,
    /// Prefix for every published hit key. `""` for a consumer that shows ONE
    /// form at a time (history); a consumer that can show several at once MUST
    /// pass a prefix carrying the subject id or the rects collide silently.
    pub hits_prefix: &'a str,
}

/// A reference field's `Select` was pressed — the caller dispatches this to its
/// own picker flavour (`begin_ref_select` / `begin_ref_select_for_constraint`).
#[derive(Debug, Clone, PartialEq)]
pub struct RefActivate {
    /// The JSON key chain the picked selection writes back into.
    pub path: Vec<String>,
    /// The field's label, for the picker's prompt.
    pub label: String,
    /// The schema's entity-kind filter (`["solid"]`, `["face"]`…).
    pub filter: Vec<String>,
    /// Whether the field accepts more than one entity.
    pub multiple: bool,
    /// The names already chosen — the picker lights them up as the seed.
    pub seed: Vec<String>,
}

/// What the user did in one drawn frame of the form.
#[derive(Debug, Default, Clone, PartialEq)]
pub struct FormViewOut {
    /// A field wrote into `params` — the caller commits the whole buffer.
    pub changed: bool,
    /// A [`FieldKind::Button`] field was clicked, by its key (`"editSketch"`).
    pub button_clicked: Option<String>,
    /// A reference field's `Select` was pressed.
    pub ref_activate: Option<RefActivate>,
    /// The bottom exit button was pressed — the caller returns to its list.
    pub exit_clicked: bool,
    /// The exit ALSO means "roll the model to the tip" — set only when the exit
    /// button was pressed AND the consumer declared [`FormViewSpec::rollback`].
    /// Always `false` for a consumer with no rollback, so its panel never needs
    /// the branch.
    pub roll_to_tip: bool,
}

/// Draw ONE complete schema-driven form into `ui`, editing `params` live, and
/// return what the user did. `hits`, when supplied, receives the widget screen
/// rects the headed verifier drives:
///
/// | key | what |
/// |---|---|
/// | `form:feature` | the title row |
/// | `form:section:{Group}` | an accordion header |
/// | `form:return` | the bottom exit button |
/// | `field:{path}` | a field's input widget |
/// | `field:{path}#{variant}` | an OPEN enum's items |
/// | `field:{path}#activate` / `#x{i}` | a reference's Select / remove buttons |
///
/// all with `spec.hits_prefix` prepended.
/// Padding INSIDE the form's container — the gap between the frame edge and the
/// first/last widget on every side.
const FORM_MARGIN: i8 = 10;

/// Gap OUTSIDE the container, between it and the pane edge, so the frame's own
/// stroke is not flush against the dock border.
const FORM_OUTER_MARGIN: i8 = 6;

pub fn form_view(
    ui: &mut egui::Ui,
    spec: &FormViewSpec<'_>,
    params: &mut Value,
    mut hits: Option<&mut HashMap<String, egui::Rect>>,
) -> FormViewOut {
    let mut out = FormViewOut::default();

    // The whole form sits inside ONE padded container, so the fields never run
    // flush against the pane edge the way the inline tree rendering did. The
    // margin is the frame's, not per-widget spacing: a single container keeps
    // the label-above-full-width rhythm intact when the pane is resized, and
    // gives the scroll region a consistent inset on every side.
    egui::Frame::group(ui.style())
        .inner_margin(egui::Margin::same(FORM_MARGIN))
        .outer_margin(egui::Margin::same(FORM_OUTER_MARGIN))
        .show(ui, |ui| {
            form_body(ui, spec, params, &mut hits, &mut out);
        });

    out
}

/// The form's contents, drawn INSIDE the padded container opened by
/// [`form_view`]. Split out so the container owns the margin in one place
/// rather than every section adding its own edge spacing.
fn form_body(
    ui: &mut egui::Ui,
    spec: &FormViewSpec<'_>,
    params: &mut Value,
    hits: &mut Option<&mut HashMap<String, egui::Rect>>,
    out: &mut FormViewOut,
) {
    // Fill the container's width so full-width inputs stay full width.
    ui.set_width(ui.available_width());

    // --- heading ----------------------------------------------------------
    let head = ui.heading(spec.title);
    publish(spec, hits, "form:feature", head.rect);
    if let Some(subtitle) = spec.subtitle {
        ui.label(egui::RichText::new(subtitle).weak());
    }
    ui.separator();

    // --- banner: the subject's error, ABOVE the fields ---------------------
    // (The history tree ALSO keeps this on the feature's row, so a failure is
    // still visible while scanning the tree — see the panel.)
    if let Some((text, color)) = spec.banner {
        egui::Frame::group(ui.style())
            .stroke(egui::Stroke::new(1.0, color))
            .fill(color.gamma_multiply(0.12))
            .show(ui, |ui| {
                ui.set_width(ui.available_width());
                ui.add(
                    egui::Label::new(egui::RichText::new(text).color(color))
                        .wrap_mode(egui::TextWrapMode::Wrap),
                );
            });
        ui.add_space(4.0);
    }

    // --- partition the schema into direct params + grouped sections --------
    let mut references: Vec<&FormField> = Vec::new();
    let mut param_leaves: Vec<&FormField> = Vec::new();
    let mut groups: Vec<(&str, Vec<&FormField>)> = Vec::new();
    for f in spec.fields {
        match f.group.as_str() {
            "References" => references.push(f),
            "Parameters" => {
                if matches!(f.kind, FieldKind::Text { read_only: true }) {
                    continue; // the subject id — already the form's title
                }
                param_leaves.push(f);
            }
            group => match groups.iter_mut().find(|(name, _)| *name == group) {
                Some(existing) => existing.1.push(f),
                None => groups.push((group, vec![f])),
            },
        }
    }
    // Transform trails the other groups: it is the one the owner named as the
    // collapsed accordion, so it belongs at the bottom, not between two open
    // sections.
    groups.sort_by_key(|(name, _)| usize::from(*name == "Transform"));

    // (1) references, then (2) plain parameters — both un-sectioned, because a
    // section over the fields the user came here to edit is a click in the way.
    for f in references.iter().chain(param_leaves.iter()) {
        draw_field(ui, spec, f, params, hits, out);
    }

    // (3) the remaining groups, each an accordion.
    for (name, fields) in &groups {
        section(ui, spec, name, hits, |ui, hits| {
            for f in fields {
                draw_field(ui, spec, f, params, hits, out);
            }
        });
    }

    // (4) read-only trailing sections (Outputs…).
    for (name, values) in spec.trailing.unwrap_or(&[]) {
        section(ui, spec, name, hits, |ui, _hits| {
            if values.is_empty() {
                ui.label(egui::RichText::new("(none)").weak());
            }
            for value in values {
                ui.label(format!("• {value}"));
            }
        });
    }

    // --- the ONE bottom button: return to the list -------------------------
    // No OK/Cancel pair and no buffer: editing is LIVE (every change commits and
    // re-runs) and UNDO is the revert mechanism, so there is nothing for a
    // Cancel to roll back that undo does not already cover.
    ui.add_space(10.0);
    let exit = ui.add_sized(
        [ui.available_width(), 26.0],
        egui::Button::new(spec.exit_label),
    );
    publish(spec, hits, "form:return", exit.rect);
    out.exit_clicked = exit.clicked();
    // The exit's rollback half, gated by the consumer's declaration — see
    // [`FormViewSpec::rollback`].
    out.roll_to_tip = out.exit_clicked && spec.rollback;
    // Breathing room UNDER the last thing in the form. Not decoration: a form
    // taller than its pane scrolls, and the scroll stops when the content bottom
    // meets the viewport bottom — so without this the exit button ends up flush
    // against (and, once egui rounds its rect to physical pixels, a hair past)
    // the pane's clip edge, which is exactly where a click stops landing.
    ui.add_space(8.0);
}

/// Record one widget rect under `spec.hits_prefix`.
fn publish(
    spec: &FormViewSpec<'_>,
    hits: &mut Option<&mut HashMap<String, egui::Rect>>,
    key: &str,
    rect: egui::Rect,
) {
    if let Some(map) = hits.as_deref_mut() {
        map.insert(format!("{}{key}", spec.hits_prefix), rect);
    }
}

/// One collapsible section: a header row that publishes `form:section:{name}`
/// and, when open, `body`. Open/collapsed lives in egui memory, keyed to this
/// form's subject, so two features' Transform sections remember separately and
/// the caller carries no state.
fn section(
    ui: &mut egui::Ui,
    spec: &FormViewSpec<'_>,
    name: &str,
    hits: &mut Option<&mut HashMap<String, egui::Rect>>,
    body: impl FnOnce(&mut egui::Ui, &mut Option<&mut HashMap<String, egui::Rect>>),
) {
    ui.add_space(6.0);
    let open = !COLLAPSED_BY_DEFAULT.contains(&name);
    let response = egui::CollapsingHeader::new(egui::RichText::new(name).strong())
        .id_salt(("form-view-section", spec.hits_prefix, spec.title, name))
        .default_open(open)
        .show(ui, |ui| body(ui, hits));
    publish(
        spec,
        hits,
        &format!("form:section:{name}"),
        response.header_response.rect,
    );
}

/// Draw ONE schema field: its label, then the input at FULL WIDTH beneath it.
/// A `Reference` is the same shape — [`form::field_input`] draws its activation
/// button and the chosen entities under this same label.
fn draw_field(
    ui: &mut egui::Ui,
    spec: &FormViewSpec<'_>,
    field: &FormField,
    params: &mut Value,
    hits: &mut Option<&mut HashMap<String, egui::Rect>>,
    out: &mut FormViewOut,
) {
    let mut probe: HashMap<String, egui::Rect> = HashMap::new();
    let mut rect = egui::Rect::NOTHING;
    let mut clicked: Option<String> = None;
    ui.add_space(4.0);
    // A `Button` field IS its own label (the schema gives it one), so a label
    // above it would say the same thing twice.
    if !matches!(field.kind, FieldKind::Button { .. }) {
        ui.label(&field.label);
    }
    // Scope the widget id-stack to THIS (subject, field) so a Scalar's
    // per-location egui-memory edit buffer (and its TextEdit focus id) can't
    // collide when two subjects share a param name — switching between two
    // extrudes mid-edit must not hand one's half-typed `distance` to the other.
    // `make_persistent_id` folds in the ui id-stack only.
    ui.push_id((spec.title, field.key()), |ui| {
        let (changed, r) = form::field_input(ui, field, params, Some(&mut probe), &mut clicked);
        out.changed |= changed;
        rect = r;
    });
    if let Some(map) = hits.as_deref_mut() {
        let prefix = spec.hits_prefix;
        map.insert(format!("{prefix}field:{}", field.path.join(".")), rect);
        for (key, r) in probe {
            map.insert(format!("{prefix}field:{key}"), r);
        }
    }
    // `field_input` reports the two ACTION kinds through the same out-param, by
    // field key; which intent it is comes from the field's own kind.
    if clicked.is_some() {
        match &field.kind {
            FieldKind::Reference { filter, multiple } => {
                out.ref_activate = Some(RefActivate {
                    path: field.path.clone(),
                    label: field.label.clone(),
                    filter: filter.clone(),
                    multiple: *multiple,
                    seed: form::reference_names(form::value_at(params, &field.path)),
                });
            }
            _ => out.button_clicked = clicked,
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use brep_render::style::FieldKind;
    use serde_json::json;

    fn field(path: &str, label: &str, group: &str, kind: FieldKind) -> FormField {
        FormField {
            path: path.split('.').map(str::to_string).collect(),
            label: label.into(),
            group: group.into(),
            kind,
        }
    }

    /// One extrude-shaped schema: a reference, two plain params, a Boolean group
    /// and a Transform group — enough to exercise ordering and both accordion
    /// defaults.
    fn fields() -> Vec<FormField> {
        vec![
            field("id", "Id", "Parameters", FieldKind::Text { read_only: true }),
            field("distance", "Distance", "Parameters", FieldKind::Scalar { step: 0.5 }),
            field(
                "transform.position",
                "Position",
                "Transform",
                FieldKind::Vec3 { step: 0.1 },
            ),
            field(
                "profile",
                "Profile",
                "References",
                FieldKind::Reference { filter: vec!["sketch".into()], multiple: false },
            ),
            field(
                "boolean.operation",
                "Operation",
                "Boolean",
                FieldKind::Enum { variants: vec!["NONE".into(), "UNION".into()] },
            ),
            field("editSketch", "Edit Sketch", "Parameters", FieldKind::Button {
                label: "Edit Sketch".into(),
            }),
        ]
    }

    /// Draw ONE headless frame of the form and return `(out, hits)`.
    fn run(
        ctx: &egui::Context,
        params: &mut Value,
        events: Vec<egui::Event>,
    ) -> (FormViewOut, HashMap<String, egui::Rect>) {
        run_with(ctx, params, events, true)
    }

    /// The same, with the consumer's [`FormViewSpec::rollback`] declaration.
    fn run_with(
        ctx: &egui::Context,
        params: &mut Value,
        events: Vec<egui::Event>,
        rollback: bool,
    ) -> (FormViewOut, HashMap<String, egui::Rect>) {
        let fields = fields();
        let outputs = vec!["Extrude1_solid".to_string()];
        let trailing = [("Outputs", outputs)];
        let spec = FormViewSpec {
            title: "E3  Extrude",
            subtitle: None,
            fields: &fields,
            banner: None,
            trailing: Some(&trailing),
            exit_label: "Return to tree",
            rollback,
            hits_prefix: "",
        };
        let raw = egui::RawInput {
            screen_rect: Some(egui::Rect::from_min_size(
                egui::pos2(0.0, 0.0),
                egui::vec2(320.0, 700.0),
            )),
            events,
            ..Default::default()
        };
        let mut hits = HashMap::new();
        let mut out = FormViewOut::default();
        let _ = ctx.run_ui(raw, |ui| {
            out = form_view(ui, &spec, params, Some(&mut hits));
        });
        (out, hits)
    }

    fn click_at(pos: egui::Pos2) -> Vec<egui::Event> {
        vec![
            egui::Event::PointerMoved(pos),
            egui::Event::PointerButton {
                pos,
                button: egui::PointerButton::Primary,
                pressed: true,
                modifiers: egui::Modifiers::default(),
            },
            egui::Event::PointerButton {
                pos,
                button: egui::PointerButton::Primary,
                pressed: false,
                modifiers: egui::Modifiers::default(),
            },
        ]
    }

    /// R6 + Q8: `Transform` is a COLLAPSED accordion (its fields are not drawn
    /// until it is opened) while `Boolean` is open, and the read-only `Outputs`
    /// section is collapsed too. The read-only `id` never appears — it is the
    /// form's title.
    #[test]
    fn transform_collapses_by_default_and_boolean_does_not() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3", "distance": 25.0 });
        let (_, hits) = run(&ctx, &mut params, vec![]);

        for key in ["form:section:Transform", "form:section:Boolean", "form:section:Outputs"] {
            assert!(hits.contains_key(key), "{key} header: {:?}", hits.keys());
        }
        assert!(
            !hits.contains_key("field:transform.position"),
            "Transform's fields stay behind its collapsed accordion"
        );
        assert!(
            hits.contains_key("field:boolean.operation"),
            "Boolean's operation is visible without a click: {:?}",
            hits.keys()
        );
        assert!(hits.contains_key("field:distance"), "plain params are un-sectioned");
        assert!(!hits.contains_key("field:id"), "the read-only id is the title, not a field");
    }

    /// The form publishes its own chrome so a verifier can drive it: the title,
    /// the ONE exit button, and the reference activation.
    #[test]
    fn the_form_publishes_its_chrome() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3" });
        let (_, hits) = run(&ctx, &mut params, vec![]);
        for key in ["form:feature", "form:return", "field:profile#activate"] {
            assert!(hits.contains_key(key), "{key}: {:?}", hits.keys());
        }
    }

    /// A reference `Select` comes OUT as an intent carrying everything the picker
    /// needs — the form view never enters picking mode itself, because it holds
    /// no engine.
    #[test]
    fn pressing_select_returns_a_ref_activate_intent() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3", "profile": "Sketch1" });
        let (_, hits) = run(&ctx, &mut params, vec![]);
        let at = hits["field:profile#activate"].center();

        let (out, _) = run(&ctx, &mut params, click_at(at));
        let activate = out.ref_activate.expect("Select surfaced an activation");
        assert_eq!(activate.path, vec!["profile".to_string()]);
        assert_eq!(activate.label, "Profile");
        assert_eq!(activate.filter, vec!["sketch".to_string()]);
        assert!(!activate.multiple);
        assert_eq!(activate.seed, vec!["Sketch1".to_string()], "the picker seeds from the value");
        assert_eq!(out.button_clicked, None, "a Select is not a schema button");
        assert!(!out.changed, "activating the picker edits nothing");
    }

    /// A schema `button` comes out by key on the SAME channel, and the caller
    /// tells the two apart by the field's kind — one out-param, two intents.
    #[test]
    fn pressing_a_schema_button_returns_its_key() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3" });
        let (_, hits) = run(&ctx, &mut params, vec![]);
        let at = hits["field:editSketch"].center();

        let (out, _) = run(&ctx, &mut params, click_at(at));
        assert_eq!(out.button_clicked.as_deref(), Some("editSketch"));
        assert_eq!(out.ref_activate, None);
    }

    /// The ONE bottom button reports itself and nothing else — there is no
    /// Cancel to tell it apart from.
    #[test]
    fn the_exit_button_reports_itself() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3" });
        let (_, hits) = run(&ctx, &mut params, vec![]);
        let at = hits["form:return"].center();

        let (out, _) = run(&ctx, &mut params, click_at(at));
        assert!(out.exit_clicked);
        assert!(!out.changed);
        assert_eq!(out.button_clicked, None);
    }

    /// The ROLLBACK declaration gates the exit's second half. A consumer whose
    /// subject lives in a rolled history (the feature tree) gets `roll_to_tip`
    /// with its exit; one that has no rollback at all (assembly constraints)
    /// gets the SAME exit and never the roll — so its panel carries no branch.
    #[test]
    fn rollback_gates_the_roll_to_tip_intent() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3" });
        let (_, hits) = run_with(&ctx, &mut params, vec![], false);
        let at = hits["form:return"].center();

        let (rolling, _) = run_with(&ctx, &mut params, click_at(at), true);
        assert!(rolling.exit_clicked && rolling.roll_to_tip, "a rollback consumer rolls on exit");

        let (flat, _) = run_with(&ctx, &mut params, click_at(at), false);
        assert!(flat.exit_clicked, "the exit itself is unconditional");
        assert!(!flat.roll_to_tip, "a consumer with no rollback never carries the roll");
    }

    /// …and no roll is carried on a frame where the exit was NOT pressed, even
    /// for a rollback consumer.
    #[test]
    fn no_exit_means_no_roll() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3" });
        let (out, _) = run_with(&ctx, &mut params, vec![], true);
        assert!(!out.exit_clicked && !out.roll_to_tip);
    }

    /// R5: the label sits ABOVE its input, and the input fills the form's width.
    /// Asserted geometrically off the published rect (the label is not a widget
    /// the form publishes, so this checks the field spans the panel).
    #[test]
    fn inputs_fill_the_form_width() {
        let ctx = egui::Context::default();
        let mut params = json!({ "id": "E3", "distance": 25.0 });
        let (_, hits) = run(&ctx, &mut params, vec![]);
        let distance = hits["field:distance"];
        assert!(
            distance.width() > 200.0,
            "a 320 pt panel gives a full-width field, not a 72 pt one: {}",
            distance.width()
        );
    }
}