refactor(lesson-preparation): editor-slice 移除画布依赖（V4）

src/modules/lesson-preparation/hooks/editor-slice.ts

@@ -1,12 +1,9 @@
 import type { StateCreator } from "zustand";
 import { createId } from "@paralleldrive/cuid2";
 import type {
-  AnchorEdge,
   AnchorType,
-  AnyLessonPlanEdge,
   Block,
   BlockType,
-  FlowEdge,
   LessonPlanDocument,
   LessonPlanNode,
   NodeAnchor,
@@ -14,7 +11,6 @@ import type {
   TextbookContentNodeData,
 } from "../types";
 import { defaultDataForType } from "../lib/document-migration";
-import { computeAutoLayout } from "../lib/auto-layout";
 import type { EditorState } from "./use-lesson-plan-editor";
 
 export interface EditorSlice {
@@ -25,24 +21,27 @@ export interface EditorSlice {
   setPlanId: (planId: string) => void;
   addNode: (type: BlockType, position?: { x: number; y: number }, title?: string) => string;
   updateNode: (id: string, patch: Omit<Partial<Block>, "type">) => void;
-  updateNodePosition: (id: string, position: { x: number; y: number }) => void;
   removeNode: (id: string) => void;
   updateTextbookContent: (data: Partial<TextbookContentNodeData>) => void;
   getTextbookContentNode: () => TextbookContentNode | undefined;
+  /**
+   * V4：添加锚点（不再传 start/end，锚点位置由 Tiptap Mark 内嵌）。
+   *
+   * 兼容说明：旧调用方可能传入 { nodeId, type, start, end, textPreview }，
+   * 这些 v3 字段会被忽略，等阶段 H 改造调用方时再清理。
+   */
   addAnchor: (params: {
     nodeId: string;
     type: AnchorType;
-    start: number;
+    /** @deprecated v3 字段，v4 已由 Tiptap Mark 承载，忽略 */
+    start?: number;
+    /** @deprecated v3 字段，v4 忽略 */
     end?: number;
+    /** @deprecated v3 字段，v4 忽略 */
     textPreview?: string;
   }) => string;
   removeAnchor: (anchorId: string) => void;
   updateAnchor: (anchorId: string, patch: Partial<NodeAnchor>) => void;
-  connect: (source: string, target: string) => void;
-  disconnect: (edgeId: string) => void;
-  setEdges: (edges: AnyLessonPlanEdge[]) => void;
-  /** V5-8：自动布局，使用 dagre 计算并应用新位置 */
-  autoLayout: (direction?: "TB" | "LR") => void;
 }
 
 function reindex(nodes: LessonPlanNode[]): LessonPlanNode[] {
@@ -58,11 +57,12 @@ export const createEditorSlice: StateCreator<
   planId: "",
   title: "",
   doc: {
-    version: 3,
+    version: 4,
     textbookContentNodeId: "",
     nodes: [],
     edges: [],
     anchors: [],
+    expandedNodeIds: [],
   },
 
   setTitle: (title) => {
@@ -71,7 +71,7 @@ export const createEditorSlice: StateCreator<
   },
   setPlanId: (planId) => set({ planId }),
 
-  addNode: (type, position, title) => {
+  addNode: (type, _position, title) => {
     const id = createId();
     const state = get();
     state.pushHistory(); // V5-2：撤销/重做
@@ -85,10 +85,7 @@ export const createEditorSlice: StateCreator<
       title: title ?? type,
       data: defaultDataForType(type),
       order: nodeCount,
-      position: position ?? {
-        x: 80 + (nodeCount % 4) * 280,
-        y: 80 + Math.floor(nodeCount / 4) * 200,
-      },
+      position: { x: 0, y: 0 }, // V4：不再使用，保留字段兼容
     };
     set((s) => ({
       doc: { ...s.doc, nodes: [...s.doc.nodes, node] },
@@ -115,24 +112,6 @@ export const createEditorSlice: StateCreator<
     }));
   },
 
-  updateNodePosition: (id, position) => {
-    // V5-2 注：拖拽过程中会产生大量 position 更新，仅在拖拽开始时推一次 history。
-    // 调用方应在 onDragStart 时调用 pushHistory，此处不重复推入。
-    set((s) => ({
-      doc: {
-        ...s.doc,
-        nodes: s.doc.nodes.map((n) =>
-          n.id === id
-            ? n.type === "textbook_content"
-              ? ({ ...n, position } as TextbookContentNode)
-              : ({ ...n, position } as LessonPlanNode)
-            : n,
-        ),
-      },
-      isDirty: true,
-    }));
-  },
-
   removeNode: (id) => {
     get().pushHistory(); // V5-2：撤销/重做
     set((s) => {
@@ -184,38 +163,19 @@ export const createEditorSlice: StateCreator<
     );
   },
 
-  addAnchor: ({ nodeId, type, start, end, textPreview }) => {
+  addAnchor: ({ nodeId, type }) => {
     const anchorId = createId();
-    const state = get();
-    state.pushHistory(); // V5-2：撤销/重做
-    const textbookNodeId = state.doc.textbookContentNodeId;
-
-    const anchor: NodeAnchor = {
-      id: anchorId,
-      nodeId,
-      type,
-      start,
-      ...(end !== undefined ? { end } : {}),
-      ...(textPreview ? { textPreview } : {}),
-    };
-
-    const edge: AnchorEdge = {
-      id: `ae_${nodeId}_${textbookNodeId}_${anchorId.slice(0, 6)}`,
-      source: nodeId,
-      target: textbookNodeId,
-      type: "anchor",
-      anchorId,
-    };
-
+    get().pushHistory(); // V5-2：撤销/重做
     set((s) => ({
       doc: {
         ...s.doc,
-        anchors: [...s.doc.anchors, anchor],
-        edges: [...s.doc.edges, edge],
+        anchors: [
+          ...s.doc.anchors,
+          { id: anchorId, nodeId, type },
+        ],
       },
       isDirty: true,
     }));
-
     return anchorId;
   },
 
@@ -245,61 +205,4 @@ export const createEditorSlice: StateCreator<
       isDirty: true,
     }));
   },
-
-  connect: (source, target) => {
-    get().pushHistory(); // V5-2：撤销/重做
-    set((s) => {
-      if (
-        s.doc.edges.some((e) => e.source === source && e.target === target)
-      )
-        return s;
-      const edge: FlowEdge = {
-        id: `e_${source}_${target}_${createId().slice(0, 6)}`,
-        source,
-        target,
-        type: "flow",
-      };
-      return {
-        doc: { ...s.doc, edges: [...s.doc.edges, edge] },
-        isDirty: true,
-      };
-    });
-  },
-
-  disconnect: (edgeId) => {
-    get().pushHistory(); // V5-2：撤销/重做
-    set((s) => ({
-      doc: {
-        ...s.doc,
-        edges: s.doc.edges.filter((e) => e.id !== edgeId),
-      },
-      isDirty: true,
-    }));
-  },
-
-  setEdges: (edges) => {
-    get().pushHistory(); // V5-2：撤销/重做
-    set((s) => ({ doc: { ...s.doc, edges }, isDirty: true }));
-  },
-
-  autoLayout: (direction = "TB") => {
-    const state = get();
-    const positions = computeAutoLayout(state.doc.nodes, state.doc.edges, { direction });
-    if (positions.size === 0) return;
-    state.pushHistory(); // V5-2：撤销/重做
-    set((s) => ({
-      doc: {
-        ...s.doc,
-        nodes: s.doc.nodes.map((n) => {
-          const p = positions.get(n.id);
-          return p
-            ? n.type === "textbook_content"
-              ? ({ ...n, position: p } as TextbookContentNode)
-              : ({ ...n, position: p } as LessonPlanNode)
-            : n;
-        }),
-      },
-      isDirty: true,
-    }));
-  },
 });