Initial

src/preload/index.ts

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+import { contextBridge, ipcRenderer } from 'electron';
+import { IPC_CHANNELS, type RendererApi } from '../shared/ipc';
+import type {
+  AppSettings,
+  AudioBufferPayload,
+  AudioFileSummary,
+  CategoryRecord,
+  LibraryScanSummary,
+  TagUpdatePayload
+} from '../shared/models';
+
+/**
+ * Preload bridge exposing a curated API surface to the renderer process.
+ */
+const api: RendererApi = {
+  async getSettings(): Promise<AppSettings> {
+    return ipcRenderer.invoke(IPC_CHANNELS.settingsGet);
+  },
+  async selectLibraryDirectory(): Promise<string | null> {
+    return ipcRenderer.invoke(IPC_CHANNELS.dialogSelectLibrary);
+  },
+  async setLibraryPath(path: string): Promise<AppSettings> {
+    return ipcRenderer.invoke(IPC_CHANNELS.settingsSetLibrary, path);
+  },
+  async rescanLibrary(): Promise<LibraryScanSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryScan);
+  },
+  async listAudioFiles(): Promise<AudioFileSummary[]> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryList);
+  },
+  async listDuplicates(): Promise<{ checksum: string; files: AudioFileSummary[] }[]> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryDuplicates);
+  },
+  async renameFile(fileId: number, newFileName: string): Promise<AudioFileSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryRename, fileId, newFileName);
+  },
+  async moveFile(fileId: number, targetRelativeDirectory: string): Promise<AudioFileSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryMove, fileId, targetRelativeDirectory);
+  },
+  async organizeFile(fileId: number, metadata: { customName?: string | null; author?: string | null; copyright?: string | null; rating?: number }): Promise<AudioFileSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryOrganize, fileId, metadata);
+  },
+  async updateCustomName(fileId: number, customName: string | null): Promise<AudioFileSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryCustomName, fileId, customName);
+  },
+  async openFileFolder(fileId: number): Promise<void> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryOpenFolder, fileId);
+  },
+  async deleteFiles(fileIds: number[]): Promise<void> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryDelete, fileIds);
+  },
+  async getAudioBuffer(fileId: number): Promise<AudioBufferPayload> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryBuffer, fileId);
+  },
+  async getWaveformPreview(fileId: number, pointCount = 160): Promise<{ samples: number[]; rms: number }> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryWaveformPreview, fileId, pointCount);
+  },
+  async updateTagging(payload: TagUpdatePayload): Promise<AudioFileSummary> {
+    return ipcRenderer.invoke(IPC_CHANNELS.tagsUpdate, payload);
+  },
+  async listCategories(): Promise<CategoryRecord[]> {
+    return ipcRenderer.invoke(IPC_CHANNELS.categoriesList);
+  },
+  async search(query: string): Promise<AudioFileSummary[]> {
+    return ipcRenderer.invoke(IPC_CHANNELS.searchQuery, query);
+  },
+  async readFileMetadata(fileId: number): Promise<{ author?: string; copyright?: string; title?: string; rating?: number }> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryMetadata, fileId);
+  },
+  async listMetadataSuggestions(): Promise<{ authors: string[]; copyrights: string[] }> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryMetadataSuggestions);
+  },
+  async updateFileMetadata(fileId: number, metadata: { author?: string | null; copyright?: string | null; rating?: number }): Promise<void> {
+    return ipcRenderer.invoke(IPC_CHANNELS.libraryUpdateMetadata, fileId, metadata);
+  },
+  onMenuAction(channel: string, callback: () => void): () => void {
+    const listener = () => callback();
+    ipcRenderer.on(channel, listener);
+    return () => ipcRenderer.removeListener(channel, listener);
+  }
+};
+
+contextBridge.exposeInMainWorld('api', api);