feat: cv2

src/lib/chord-editor/save-chords.ts

@@ -0,0 +1,58 @@
+import type { EditorView } from "@codemirror/view";
+import { parser } from "./chords.grammar";
+import { parseCharaChords } from "./action-serializer";
+import { actionMetaPlugin } from "./action-meta-plugin";
+import { deviceChordField } from "./chord-sync-plugin";
+import type { CharaChordFile } from "$lib/share/chara-file";
+
+export interface SaveChordsTask {
+  remove: number[][];
+  set: [number[], number[]][];
+}
+
+export function createSaveTask(view: EditorView): SaveChordsTask {
+  const tree = parser.parse(view.state.doc.toString());
+  const { ids, codes } = view.state.field(actionMetaPlugin.field);
+  const deviceChords = view.state.field(deviceChordField);
+  const result = parseCharaChords(tree, ids, codes, deviceChords, (from, to) =>
+    view.state.doc.sliceString(from, to),
+  );
+
+  return {
+    remove: result.removed.map((chord) => chord[0]),
+    set: result.chords
+      .filter(
+        (chord) =>
+          !chord.disabled &&
+          (!chord.phrase ||
+            chord.phrase?.originalValue !== chord.phrase?.value),
+      )
+      .map((chord) => [chord.input?.value ?? [], chord.phrase?.value ?? []]),
+  };
+}
+
+export function applySaveTask(
+  backup: CharaChordFile["chords"],
+  task: SaveChordsTask,
+): CharaChordFile["chords"] {
+  const newBackup = [...backup];
+  for (const input of task.remove) {
+    const index = newBackup.findIndex((chord) => {
+      return JSON.stringify(chord[0]) === JSON.stringify(input);
+    });
+    if (index !== -1) {
+      newBackup.splice(index, 1);
+    }
+  }
+  for (const [input, phrase] of task.set) {
+    const index = newBackup.findIndex((chord) => {
+      return JSON.stringify(chord[0]) === JSON.stringify(input);
+    });
+    if (index !== -1) {
+      newBackup[index] = [input, phrase];
+    } else {
+      newBackup.push([input, phrase]);
+    }
+  }
+  return newBackup;
+}