759 lines
23 KiB
TypeScript
759 lines
23 KiB
TypeScript
import { EventEmitter } from 'events';
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import { v4 as uuidv4 } from 'uuid';
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import * as fs from 'fs/promises';
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import * as path from 'path';
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import * as crypto from 'crypto';
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import { eq } from 'drizzle-orm';
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import { app } from 'electron';
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import { getDatabase } from '../database';
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import { media, Media, NewMedia } from '../database/schema';
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// Thumbnail sizes
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const THUMBNAIL_SIZES = {
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small: { width: 150, height: 150 },
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medium: { width: 400, height: 400 },
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large: { width: 800, height: 800 },
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} as const;
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type ThumbnailSize = keyof typeof THUMBNAIL_SIZES;
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import { taskManager, Task } from './TaskManager';
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export interface MediaData {
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id: string;
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filename: string;
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originalName: string;
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mimeType: string;
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size: number;
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width?: number;
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height?: number;
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alt?: string;
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caption?: string;
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createdAt: Date;
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updatedAt: Date;
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tags: string[];
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}
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export interface MediaMetadata {
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id: string;
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originalName: string;
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mimeType: string;
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size: number;
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width?: number;
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height?: number;
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alt?: string;
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caption?: string;
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createdAt: string;
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updatedAt: string;
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tags: string[];
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}
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export class MediaEngine extends EventEmitter {
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private currentProjectId: string = 'default';
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private dataDir: string | null = null; // For media files (may be external)
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private internalDir: string | null = null; // For thumbnails (always local)
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constructor() {
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super();
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}
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private getDefaultBaseDir(): string {
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const userDataPath = app.getPath('userData');
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return path.join(userDataPath, 'projects', this.currentProjectId);
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}
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private getDataDir(): string {
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return this.dataDir || this.getDefaultBaseDir();
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}
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private getInternalDir(): string {
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return this.internalDir || this.getDefaultBaseDir();
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}
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private getMediaBaseDir(): string {
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return path.join(this.getDataDir(), 'media');
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}
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private getMediaDir(): string {
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// Kept for backwards compatibility - returns base media directory
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return this.getMediaBaseDir();
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}
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/**
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* Get the date-based directory for media based on its creation date.
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* Format: media/YYYY/MM/
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*/
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private getMediaDirForDate(date: Date): string {
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const baseDir = this.getMediaBaseDir();
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const year = date.getFullYear().toString();
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const month = (date.getMonth() + 1).toString().padStart(2, '0');
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return path.join(baseDir, year, month);
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}
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/**
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* Get the full path for a media file based on id, extension, and date.
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* Returns: media/YYYY/MM/{id}.{ext}
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*/
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getMediaPathForDate(id: string, ext: string, date: Date): string {
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const dir = this.getMediaDirForDate(date);
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const extension = ext.startsWith('.') ? ext : `.${ext}`;
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return path.join(dir, `${id}${extension}`);
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}
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setProjectContext(projectId: string, dataDir?: string, internalDir?: string): void {
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this.currentProjectId = projectId;
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this.dataDir = dataDir || null;
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this.internalDir = internalDir || null;
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console.log(`[MediaEngine] setProjectContext: projectId=${projectId}, dataDir=${this.dataDir}, internalDir=${this.internalDir}`);
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}
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getProjectContext(): string {
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return this.currentProjectId;
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}
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private calculateChecksum(buffer: Buffer): string {
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return crypto.createHash('md5').update(buffer).digest('hex');
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}
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/**
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* Get the thumbnails directory for the current project
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*/
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private getThumbnailsDir(): string {
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return path.join(this.getInternalDir(), 'thumbnails');
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}
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/**
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* Generate thumbnails for an image file
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*/
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async generateThumbnails(mediaId: string, sourcePath: string): Promise<Record<ThumbnailSize, string>> {
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const thumbnailsDir = this.getThumbnailsDir();
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await fs.mkdir(thumbnailsDir, { recursive: true });
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const thumbnails: Record<ThumbnailSize, string> = {} as Record<ThumbnailSize, string>;
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try {
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// Dynamic import of sharp (it's a native module)
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const sharp = (await import('sharp')).default;
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for (const [size, dimensions] of Object.entries(THUMBNAIL_SIZES) as [ThumbnailSize, { width: number; height: number }][]) {
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const thumbnailPath = path.join(thumbnailsDir, `${mediaId}-${size}.webp`);
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await sharp(sourcePath)
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.resize(dimensions.width, dimensions.height, {
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fit: 'inside',
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withoutEnlargement: true,
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})
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.webp({ quality: 80 })
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.toFile(thumbnailPath);
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thumbnails[size] = thumbnailPath;
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}
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this.emit('thumbnailsGenerated', { mediaId, thumbnails });
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} catch (error) {
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console.error('Failed to generate thumbnails:', error);
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// Return empty thumbnails on error - non-critical failure
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}
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return thumbnails;
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}
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/**
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* Get existing thumbnail paths for a media item
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*/
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async getThumbnailPaths(mediaId: string): Promise<Record<ThumbnailSize, string | null>> {
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const thumbnailsDir = this.getThumbnailsDir();
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const result: Record<ThumbnailSize, string | null> = {
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small: null,
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medium: null,
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large: null,
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};
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for (const size of Object.keys(THUMBNAIL_SIZES) as ThumbnailSize[]) {
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const thumbnailPath = path.join(thumbnailsDir, `${mediaId}-${size}.webp`);
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try {
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await fs.access(thumbnailPath);
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result[size] = thumbnailPath;
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} catch {
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// Thumbnail doesn't exist
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}
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}
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return result;
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}
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/**
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* Get thumbnail as base64 data URL for renderer
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*/
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async getThumbnailDataUrl(mediaId: string, size: ThumbnailSize = 'small'): Promise<string | null> {
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const thumbnailsDir = this.getThumbnailsDir();
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const thumbnailPath = path.join(thumbnailsDir, `${mediaId}-${size}.webp`);
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try {
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const data = await fs.readFile(thumbnailPath);
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return `data:image/webp;base64,${data.toString('base64')}`;
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} catch {
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return null;
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}
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}
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/**
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* Delete thumbnails for a media item
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*/
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private async deleteThumbnails(mediaId: string): Promise<void> {
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const thumbnailsDir = this.getThumbnailsDir();
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for (const size of Object.keys(THUMBNAIL_SIZES) as ThumbnailSize[]) {
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const thumbnailPath = path.join(thumbnailsDir, `${mediaId}-${size}.webp`);
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try {
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await fs.unlink(thumbnailPath);
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} catch {
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// Thumbnail doesn't exist, ignore
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}
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}
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}
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private async writeSidecarFile(mediaData: MediaData, mediaPath: string): Promise<string> {
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const sidecarPath = `${mediaPath}.meta`;
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const metadata: MediaMetadata = {
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id: mediaData.id,
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originalName: mediaData.originalName,
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mimeType: mediaData.mimeType,
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size: mediaData.size,
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width: mediaData.width,
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height: mediaData.height,
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alt: mediaData.alt,
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caption: mediaData.caption,
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createdAt: mediaData.createdAt.toISOString(),
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updatedAt: mediaData.updatedAt.toISOString(),
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tags: mediaData.tags,
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};
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// Write YAML-like format consistent with posts
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const lines = [
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'---',
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`id: ${metadata.id}`,
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`originalName: "${metadata.originalName}"`,
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`mimeType: ${metadata.mimeType}`,
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`size: ${metadata.size}`,
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];
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if (metadata.width) lines.push(`width: ${metadata.width}`);
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if (metadata.height) lines.push(`height: ${metadata.height}`);
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if (metadata.alt) lines.push(`alt: "${metadata.alt}"`);
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if (metadata.caption) lines.push(`caption: "${metadata.caption}"`);
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lines.push(`createdAt: ${metadata.createdAt}`);
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lines.push(`updatedAt: ${metadata.updatedAt}`);
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lines.push(`tags: [${metadata.tags.map(t => `"${t}"`).join(', ')}]`);
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lines.push('---');
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await fs.writeFile(sidecarPath, lines.join('\n'), 'utf-8');
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return sidecarPath;
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}
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private async readSidecarFile(sidecarPath: string): Promise<MediaMetadata | null> {
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try {
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// Check if file exists first to avoid noisy errors
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try {
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await fs.access(sidecarPath);
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} catch {
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// File doesn't exist - this is expected when DB has stale paths
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return null;
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}
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const content = await fs.readFile(sidecarPath, 'utf-8');
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const lines = content.split('\n');
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const metadata: Partial<MediaMetadata> = {
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tags: [],
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};
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for (const line of lines) {
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if (line === '---') continue;
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const colonIndex = line.indexOf(':');
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if (colonIndex === -1) continue;
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const key = line.substring(0, colonIndex).trim();
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let value = line.substring(colonIndex + 1).trim();
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// Remove quotes
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if (value.startsWith('"') && value.endsWith('"')) {
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value = value.slice(1, -1);
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}
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switch (key) {
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case 'id':
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metadata.id = value;
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break;
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case 'originalName':
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metadata.originalName = value;
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break;
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case 'mimeType':
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metadata.mimeType = value;
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break;
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case 'size':
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metadata.size = parseInt(value, 10);
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break;
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case 'width':
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metadata.width = parseInt(value, 10);
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break;
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case 'height':
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metadata.height = parseInt(value, 10);
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break;
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case 'alt':
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metadata.alt = value;
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break;
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case 'caption':
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metadata.caption = value;
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break;
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case 'createdAt':
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metadata.createdAt = value;
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break;
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case 'updatedAt':
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metadata.updatedAt = value;
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break;
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case 'tags':
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// Parse array format: ["tag1", "tag2"]
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const match = value.match(/\[(.*)\]/);
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if (match) {
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metadata.tags = match[1]
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.split(',')
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.map(t => t.trim().replace(/"/g, ''))
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.filter(t => t.length > 0);
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}
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break;
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}
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}
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if (!metadata.id || !metadata.originalName || !metadata.mimeType) {
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return null;
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}
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return metadata as MediaMetadata;
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} catch (error) {
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console.error(`Failed to parse sidecar file: ${sidecarPath}`, error);
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return null;
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}
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}
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private getMimeType(filename: string): string {
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const ext = path.extname(filename).toLowerCase();
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const mimeTypes: Record<string, string> = {
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'.jpg': 'image/jpeg',
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'.jpeg': 'image/jpeg',
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'.png': 'image/png',
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'.gif': 'image/gif',
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'.webp': 'image/webp',
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'.svg': 'image/svg+xml',
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'.bmp': 'image/bmp',
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'.ico': 'image/x-icon',
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};
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return mimeTypes[ext] || 'application/octet-stream';
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}
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async importMedia(sourcePath: string, metadata?: Partial<MediaData>): Promise<MediaData> {
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const db = getDatabase().getLocal();
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const id = uuidv4();
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const now = new Date();
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const sourceBuffer = await fs.readFile(sourcePath);
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const originalName = path.basename(sourcePath);
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const ext = path.extname(originalName);
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const filename = `${id}${ext}`;
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// Use date-based directory structure (media/YYYY/MM/)
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const mediaDir = this.getMediaDirForDate(now);
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await fs.mkdir(mediaDir, { recursive: true });
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const destPath = path.join(mediaDir, filename);
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// Copy file to media directory
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await fs.copyFile(sourcePath, destPath);
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const mimeType = metadata?.mimeType || this.getMimeType(originalName);
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let width = metadata?.width;
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let height = metadata?.height;
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// Get image dimensions using sharp if it's an image
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if (mimeType.startsWith('image/') && !mimeType.includes('svg')) {
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try {
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const sharp = (await import('sharp')).default;
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const imageMetadata = await sharp(destPath).metadata();
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width = imageMetadata.width;
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height = imageMetadata.height;
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} catch (error) {
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console.error('Failed to get image dimensions:', error);
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}
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}
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const mediaData: MediaData = {
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id,
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filename,
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originalName,
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mimeType,
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size: sourceBuffer.length,
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width,
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height,
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alt: metadata?.alt,
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caption: metadata?.caption,
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createdAt: now,
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updatedAt: now,
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tags: metadata?.tags || [],
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};
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const sidecarPath = await this.writeSidecarFile(mediaData, destPath);
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const checksum = this.calculateChecksum(sourceBuffer);
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// Generate thumbnails for images (async, non-blocking)
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if (mimeType.startsWith('image/') && !mimeType.includes('svg')) {
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this.generateThumbnails(id, destPath).catch(err => {
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console.error('Failed to generate thumbnails:', err);
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});
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}
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const dbMedia: NewMedia = {
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id: mediaData.id,
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projectId: this.currentProjectId,
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filename: mediaData.filename,
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originalName: mediaData.originalName,
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mimeType: mediaData.mimeType,
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size: mediaData.size,
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width: mediaData.width,
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height: mediaData.height,
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alt: mediaData.alt,
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caption: mediaData.caption,
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filePath: destPath,
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sidecarPath,
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createdAt: mediaData.createdAt,
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updatedAt: mediaData.updatedAt,
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syncStatus: 'pending',
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checksum,
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tags: JSON.stringify(mediaData.tags),
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};
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await db.insert(media).values(dbMedia);
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this.emit('mediaImported', mediaData);
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return mediaData;
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}
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async updateMedia(id: string, data: Partial<MediaData>): Promise<MediaData | null> {
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const db = getDatabase().getLocal();
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const existing = await this.getMedia(id);
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if (!existing) {
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return null;
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}
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const updated: MediaData = {
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...existing,
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...data,
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id, // Ensure ID doesn't change
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updatedAt: new Date(),
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};
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const dbMedia = await db.select().from(media).where(eq(media.id, id)).get();
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if (!dbMedia) return null;
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await this.writeSidecarFile(updated, dbMedia.filePath);
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await db.update(media)
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.set({
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alt: updated.alt,
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caption: updated.caption,
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updatedAt: updated.updatedAt,
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syncStatus: 'pending',
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tags: JSON.stringify(updated.tags),
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})
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.where(eq(media.id, id));
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this.emit('mediaUpdated', updated);
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return updated;
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}
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async deleteMedia(id: string): Promise<boolean> {
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const db = getDatabase().getLocal();
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const existing = await db.select().from(media).where(eq(media.id, id)).get();
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if (!existing) {
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return false;
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}
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// Delete media file
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try {
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await fs.unlink(existing.filePath);
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} catch {
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// File might not exist
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}
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// Delete sidecar file
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try {
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await fs.unlink(existing.sidecarPath);
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} catch {
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// File might not exist
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}
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// Delete thumbnails
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await this.deleteThumbnails(id);
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await db.delete(media).where(eq(media.id, id));
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this.emit('mediaDeleted', id);
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return true;
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}
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async getMedia(id: string): Promise<MediaData | null> {
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const db = getDatabase().getLocal();
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const dbMedia = await db.select().from(media).where(eq(media.id, id)).get();
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if (!dbMedia) {
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return null;
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}
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return {
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id: dbMedia.id,
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filename: dbMedia.filename,
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originalName: dbMedia.originalName,
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mimeType: dbMedia.mimeType,
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size: dbMedia.size,
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width: dbMedia.width || undefined,
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height: dbMedia.height || undefined,
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alt: dbMedia.alt || undefined,
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caption: dbMedia.caption || undefined,
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createdAt: dbMedia.createdAt,
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updatedAt: dbMedia.updatedAt,
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tags: JSON.parse(dbMedia.tags || '[]'),
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};
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}
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async getAllMedia(): Promise<MediaData[]> {
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const db = getDatabase().getLocal();
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const dbMediaList = await db.select().from(media).all();
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return dbMediaList.map(dbMedia => ({
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id: dbMedia.id,
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filename: dbMedia.filename,
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originalName: dbMedia.originalName,
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mimeType: dbMedia.mimeType,
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size: dbMedia.size,
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width: dbMedia.width || undefined,
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height: dbMedia.height || undefined,
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alt: dbMedia.alt || undefined,
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caption: dbMedia.caption || undefined,
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createdAt: dbMedia.createdAt,
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updatedAt: dbMedia.updatedAt,
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tags: JSON.parse(dbMedia.tags || '[]'),
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}));
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}
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getMediaPath(id: string): string {
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return path.join(this.getMediaDir(), id);
|
|
}
|
|
|
|
async rebuildDatabaseFromFiles(): Promise<void> {
|
|
const mediaBaseDir = this.getMediaBaseDir();
|
|
console.log(`[MediaEngine] rebuildDatabaseFromFiles: scanning mediaBaseDir=${mediaBaseDir}`);
|
|
const task: Task<void> = {
|
|
id: uuidv4(),
|
|
name: 'Rebuild database from media files',
|
|
execute: async (onProgress) => {
|
|
const db = getDatabase().getLocal();
|
|
|
|
onProgress(0, 'Deleting existing media for project...');
|
|
|
|
// Notify UI that rebuild is starting so it can clear the list
|
|
this.emit('rebuildStarted');
|
|
|
|
// Delete all media for the current project - clean slate rebuild
|
|
const existingMedia = await db.select({ id: media.id }).from(media).where(eq(media.projectId, this.currentProjectId)).all();
|
|
if (existingMedia.length > 0) {
|
|
await db.delete(media).where(eq(media.projectId, this.currentProjectId));
|
|
console.log(`Deleted ${existingMedia.length} existing media record(s) for project ${this.currentProjectId}`);
|
|
}
|
|
|
|
onProgress(5, 'Scanning media directory...');
|
|
|
|
// Recursively find all .meta files in the media directory tree
|
|
const metaFiles: string[] = [];
|
|
const scanDir = async (dir: string) => {
|
|
try {
|
|
const entries = await fs.readdir(dir, { withFileTypes: true });
|
|
for (const entry of entries) {
|
|
const fullPath = path.join(dir, entry.name);
|
|
if (entry.isDirectory()) {
|
|
await scanDir(fullPath);
|
|
} else if (entry.name.endsWith('.meta')) {
|
|
metaFiles.push(fullPath);
|
|
}
|
|
}
|
|
} catch {
|
|
// Directory might not exist
|
|
}
|
|
};
|
|
|
|
try {
|
|
await fs.mkdir(mediaBaseDir, { recursive: true });
|
|
} catch {
|
|
// Already exists
|
|
}
|
|
await scanDir(mediaBaseDir);
|
|
|
|
onProgress(10, `Found ${metaFiles.length} media sidecar files`);
|
|
|
|
for (let i = 0; i < metaFiles.length; i++) {
|
|
const sidecarPath = metaFiles[i];
|
|
const mediaFilePath = sidecarPath.replace('.meta', '');
|
|
const metaFileName = path.basename(sidecarPath);
|
|
|
|
onProgress(10 + (80 * (i / metaFiles.length)), `Processing ${i + 1}/${metaFiles.length}: ${metaFileName}`);
|
|
|
|
const metadata = await this.readSidecarFile(sidecarPath);
|
|
|
|
if (metadata) {
|
|
try {
|
|
const stats = await fs.stat(mediaFilePath);
|
|
const buffer = await fs.readFile(mediaFilePath);
|
|
const checksum = this.calculateChecksum(buffer);
|
|
const filename = path.basename(mediaFilePath);
|
|
|
|
// Insert fresh - we deleted all records at the start
|
|
await db.insert(media).values({
|
|
id: metadata.id,
|
|
projectId: this.currentProjectId,
|
|
filename,
|
|
originalName: metadata.originalName,
|
|
mimeType: metadata.mimeType,
|
|
size: stats.size,
|
|
width: metadata.width,
|
|
height: metadata.height,
|
|
alt: metadata.alt,
|
|
caption: metadata.caption,
|
|
filePath: mediaFilePath,
|
|
sidecarPath,
|
|
createdAt: new Date(metadata.createdAt),
|
|
updatedAt: new Date(metadata.updatedAt),
|
|
syncStatus: 'pending',
|
|
checksum,
|
|
tags: JSON.stringify(metadata.tags),
|
|
});
|
|
} catch (error) {
|
|
console.error(`Media file not found for sidecar: ${sidecarPath}`, error);
|
|
}
|
|
}
|
|
|
|
// Yield to event loop periodically so the window stays responsive
|
|
if (i % 10 === 0) {
|
|
await new Promise(resolve => setImmediate(resolve));
|
|
}
|
|
}
|
|
|
|
onProgress(100, 'Database rebuild complete');
|
|
this.emit('databaseRebuilt');
|
|
},
|
|
};
|
|
|
|
await taskManager.runTask(task);
|
|
}
|
|
|
|
/**
|
|
* Regenerate missing thumbnails for all image media.
|
|
* Useful for media imported externally without thumbnails.
|
|
*/
|
|
async regenerateMissingThumbnails(): Promise<{ processed: number; generated: number; failed: number }> {
|
|
const result = { processed: 0, generated: 0, failed: 0 };
|
|
|
|
const task: Task<{ processed: number; generated: number; failed: number }> = {
|
|
id: uuidv4(),
|
|
name: 'Generate missing thumbnails',
|
|
execute: async (onProgress) => {
|
|
const db = getDatabase().getLocal();
|
|
|
|
onProgress(0, 'Finding images without thumbnails...');
|
|
|
|
// Get all image media for current project
|
|
const allMedia = await db
|
|
.select()
|
|
.from(media)
|
|
.where(eq(media.projectId, this.currentProjectId))
|
|
.all();
|
|
|
|
// Filter to images only (not SVG - they don't need thumbnails)
|
|
const imageMedia = allMedia.filter(
|
|
m => m.mimeType.startsWith('image/') && !m.mimeType.includes('svg')
|
|
);
|
|
|
|
if (imageMedia.length === 0) {
|
|
onProgress(100, 'No images found');
|
|
return result;
|
|
}
|
|
|
|
onProgress(5, `Checking ${imageMedia.length} images...`);
|
|
|
|
// Find which ones are missing thumbnails
|
|
const missingThumbnails: typeof imageMedia = [];
|
|
for (const item of imageMedia) {
|
|
const thumbnails = await this.getThumbnailPaths(item.id);
|
|
// Consider missing if any size is missing
|
|
if (!thumbnails.small || !thumbnails.medium || !thumbnails.large) {
|
|
missingThumbnails.push(item);
|
|
}
|
|
}
|
|
|
|
if (missingThumbnails.length === 0) {
|
|
onProgress(100, 'All thumbnails exist');
|
|
return result;
|
|
}
|
|
|
|
onProgress(10, `Generating thumbnails for ${missingThumbnails.length} images...`);
|
|
|
|
for (let i = 0; i < missingThumbnails.length; i++) {
|
|
const item = missingThumbnails[i];
|
|
result.processed++;
|
|
|
|
const progress = 10 + (90 * ((i + 1) / missingThumbnails.length));
|
|
onProgress(progress, `Processing ${i + 1}/${missingThumbnails.length}: ${item.originalName}`);
|
|
|
|
try {
|
|
// Verify the source file exists
|
|
await fs.access(item.filePath);
|
|
|
|
const thumbnails = await this.generateThumbnails(item.id, item.filePath);
|
|
|
|
// Check if thumbnails were actually generated
|
|
if (Object.keys(thumbnails).length > 0) {
|
|
result.generated++;
|
|
} else {
|
|
result.failed++;
|
|
}
|
|
} catch (error) {
|
|
console.error(`Failed to generate thumbnails for ${item.id}:`, error);
|
|
result.failed++;
|
|
}
|
|
|
|
// Yield to event loop periodically
|
|
if (i % 5 === 0) {
|
|
await new Promise(resolve => setImmediate(resolve));
|
|
}
|
|
}
|
|
|
|
onProgress(100, `Generated ${result.generated} thumbnails, ${result.failed} failed`);
|
|
this.emit('thumbnailsRegenerated', result);
|
|
return result;
|
|
},
|
|
};
|
|
|
|
return await taskManager.runTask(task);
|
|
}
|
|
}
|
|
|
|
// Singleton instance
|
|
let mediaEngine: MediaEngine | null = null;
|
|
|
|
export function getMediaEngine(): MediaEngine {
|
|
if (!mediaEngine) {
|
|
mediaEngine = new MediaEngine();
|
|
}
|
|
return mediaEngine;
|
|
}
|