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brep_app/panels/
component_actions.rs

1//! The shared COMPONENT action set — the ONE entry point for per-component
2//! interactions, consumed by the selection context bar (this lane) and,
3//! through the same enum, by the assembly structure tree's per-node action
4//! hooks (lane F seam: the tree calls [`run_component_action`] with the
5//! node's owning ACOMP feature id — actions always ROUTE TO the owning
6//! feature, one truth, one undo lane).
7//!
8//! Engine-mutating actions (Move / Fix-Unfix / Delete) run HERE against
9//! [`EngineState`]; the document-level flow (Edit Part) returns a
10//! [`ComponentActionRequest`] for the SHELL, which owns the open documents and
11//! the file dialog.
12
13use brep_render::engine_state::EngineState;
14
15/// One per-component action.
16#[derive(Clone, Copy, PartialEq, Eq, Debug)]
17pub enum ComponentAction {
18    /// Toggle the Move gizmo on/off — arrows + rotation arcs together (fixed refuses
19    /// with a toast). Engine-side.
20    Move,
21    /// Add a SECOND instance of the same part (a new ACOMP on the source's
22    /// pose, free even when the source is fixed) and arm the Move gizmo on it,
23    /// so the user drags the copy into place. Engine-side.
24    MoveCopy,
25    /// Open the part's SOURCE document in its own document tab (shell-side).
26    /// Editing a component IS opening its part: there is no separate
27    /// edit-in-place session any more — the part is a document like any other,
28    /// and the assembly picks the change up through the outdated badge /
29    /// `panels::update_components` once the part is saved.
30    OpenPart,
31    /// Fix ⇄ Unfix (writes `isFixed` on the owning ACOMP; re-runs + re-solves).
32    ToggleFixed,
33    /// Delete the owning ACOMP feature (the library entry GC's kernel-side when
34    /// its last instance goes).
35    Delete,
36}
37
38impl ComponentAction {
39    /// Every action, in bar order.
40    pub const ALL: [ComponentAction; 5] = [
41        ComponentAction::Move,
42        ComponentAction::MoveCopy,
43        ComponentAction::OpenPart,
44        ComponentAction::ToggleFixed,
45        ComponentAction::Delete,
46    ];
47
48    /// Stable id (widget keys / verifier state).
49    pub fn id(self) -> &'static str {
50        match self {
51            ComponentAction::Move => "move",
52            ComponentAction::MoveCopy => "move-copy",
53            ComponentAction::OpenPart => "open-part",
54            ComponentAction::ToggleFixed => "toggle-fixed",
55            ComponentAction::Delete => "delete",
56        }
57    }
58
59    /// The id in reverse (`None` for an unknown id).
60    pub fn from_id(id: &str) -> Option<Self> {
61        Self::ALL.into_iter().find(|action| action.id() == id)
62    }
63
64    /// The button label. `fixed` flips the Fix/Unfix wording.
65    pub fn label(self, fixed: bool) -> &'static str {
66        match self {
67            ComponentAction::Move => "\u{2725} Move",
68            ComponentAction::MoveCopy => "\u{29C9} Move Copy",
69            ComponentAction::OpenPart => "\u{270E} Edit Part",
70            ComponentAction::ToggleFixed => {
71                if fixed {
72                    "\u{1F513} Unfix"
73                } else {
74                    "\u{1F512} Fix"
75                }
76            }
77            ComponentAction::Delete => "\u{2716} Delete",
78        }
79    }
80
81    /// Hover tooltip.
82    pub fn tooltip(self) -> &'static str {
83        match self {
84            ComponentAction::Move => "Move/rotate gizmo on-off (arrows + arcs together)",
85            ComponentAction::MoveCopy => {
86                "Add another instance of this part and drag it into place with the move gizmo"
87            }
88            ComponentAction::OpenPart => "Open the part's source document in its own tab",
89            ComponentAction::ToggleFixed => "Ground / free this instance for the solver",
90            ComponentAction::Delete => "Delete this component instance",
91        }
92    }
93}
94
95/// A document-level flow the SHELL must run (it owns the open documents + the
96/// file dialog); engine-mutating actions never produce one.
97#[derive(Clone, PartialEq, Eq, Debug)]
98pub enum ComponentActionRequest {
99    OpenPart { component_id: String },
100}
101
102/// Run `action` on the component owned by ACOMP feature `component_id`.
103/// Engine-mutating actions apply immediately; Edit Part returns the request the
104/// shell dispatches. Unknown component ids toast.
105pub fn run_component_action(
106    state: &mut EngineState,
107    action: ComponentAction,
108    component_id: &str,
109) -> Option<ComponentActionRequest> {
110    match action {
111        ComponentAction::Move => {
112            // Toggle the full gizmo (arrows + arcs together); a FIXED component
113            // refuses with a toast inside the engine.
114            state.component_move_toggle(component_id);
115            None
116        }
117        ComponentAction::MoveCopy => {
118            // The copy is free even off a fixed source; the engine toasts an
119            // unknown id itself.
120            let _ = state.component_move_copy(component_id);
121            None
122        }
123        ComponentAction::ToggleFixed => {
124            let Some(info) = state.component_info(component_id) else {
125                state.push_notice(format!("'{component_id}' is not an assembly component"));
126                return None;
127            };
128            let mut params = serde_json::from_str::<serde_json::Value>(
129                &state.feature_params_json(feature_index(state, component_id)?),
130            )
131            .unwrap_or_else(|_| serde_json::json!({}));
132            if let Some(object) = params.as_object_mut() {
133                // An EXPLICIT boolean either way — the kernel honors explicit
134                // `false` (un-fixing the sole component stays possible; the
135                // absent-auto-grounds rule keys on absence only).
136                object.insert("isFixed".into(), serde_json::Value::Bool(!info.fixed));
137            }
138            let _ = state.update_feature_params(component_id, &params.to_string());
139            None
140        }
141        ComponentAction::Delete => {
142            // Deleting the feature is the ONE truth (tree/bar both route here);
143            // the parts-library entry GC's at the kernel's next rebuild when its
144            // last instance goes.
145            let _ = state.delete_feature(component_id);
146            None
147        }
148        ComponentAction::OpenPart => Some(ComponentActionRequest::OpenPart {
149            component_id: component_id.to_string(),
150        }),
151    }
152}
153
154/// The feature index carrying id `id` (the engine exposes index→id, so scan).
155fn feature_index(state: &EngineState, id: &str) -> Option<usize> {
156    (0..state.history_len()).find(|&i| state.feature_id_at(i).as_deref() == Some(id))
157}
158
159/// The component's parts-library `sourceKey` (the ModelStore document name the
160/// part was inserted from), read off the document's `partsLibrary` block —
161/// `None` when the component / entry / key is absent (an imported or
162/// embedded-only part). The Edit-Part flow offers to create a file from the
163/// embedded document when a source is unavailable, and
164/// keys its store lookup on this.
165pub fn part_source_key(state: &EngineState, component_id: &str) -> Option<String> {
166    let info = state.component_info(component_id)?;
167    let document: serde_json::Value =
168        serde_json::from_str(&state.history_request_json()).ok()?;
169    document["partsLibrary"][&info.part_name]["sourceKey"]
170        .as_str()
171        .filter(|key| !key.is_empty())
172        .map(str::to_string)
173}
174