feat: 实现功能&优化

- 底部播放栏
- MediaSession
- 插件系统&存储位置
- URL缓存机制
- 整理项目结构

src/main/pluginSystem.ts

@@ -0,0 +1,64 @@
+import { app } from 'electron'
+import path from 'path'
+import fs from 'fs'
+import { createRequire } from 'node:module'
+
+const require = createRequire(import.meta.url)
+
+export interface UrlResponse {
+    success: boolean
+    url?: string
+    error?: string
+}
+
+type PluginModule = {
+    getUrl?: (id: string, quality: string) => Promise<UrlResponse> | UrlResponse
+}
+
+export class PluginSystem {
+    private pluginId: string
+    private plugin: PluginModule | null = null
+    constructor(pluginId: string) {
+        this.pluginId = pluginId
+        this.loadPlugin()
+    }
+    private loadPlugin() {
+        try {
+            const pluginPath = path.join(
+                app.getPath('userData'),
+                'plugins',
+                this.pluginId,
+                'index.js'
+            )
+
+            if (!fs.existsSync(pluginPath)) {
+                throw new Error(`Plugin ${this.pluginId} not found`)
+            }
+
+            delete require.cache[require.resolve(pluginPath)]
+
+            this.plugin = require(pluginPath)
+
+        } catch (e: any) {
+            console.error(`[PluginSystem] load failed:`, e)
+            this.plugin = null
+        }
+    }
+    async getUrl(id: string, quality: string): Promise<UrlResponse> {
+        if (!this.plugin?.getUrl) {
+            return {
+                success: false,
+                error: 'getUrl not implemented'
+            }
+        }
+
+        try {
+            return await this.plugin.getUrl(id, quality)
+        } catch (e: any) {
+            return {
+                success: false,
+                error: e.message || 'plugin error'
+            }
+        }
+    }
+}