refactor(main): 重构字幕引擎启动和错误处理逻辑

- 修改了字幕引擎的启动条件，增加了对环境变量和自定义应用的检查
- 优化了错误处理机制，通过控制窗口发送错误消息
- 在前端增加了错误通知功能

src/main/control.ts

@@ -90,8 +90,17 @@ class ControlWindow {
         this.window?.webContents.send('control.engine.already')
       }
       else {
-        captionEngine.start()
-        this.window?.webContents.send('control.engine.started')
+        if(
+          process.env.DASHSCOPE_API_KEY ||
+          (controls.customized && controls.customizedApp)
+        ) {
+          if(this.window){
+            captionEngine.start(this.window)
+          }
+        }
+        else {
+          this.sendErrorMessage('没有检测到 DASHSCOPE_API_KEY 环境变量，如果要使用 gummy 引擎，需要在阿里云百炼平台获取 API Key 并添加到本机环境变量')
+        }
       }
     })
     // 停止字幕引擎
@@ -104,6 +113,10 @@ class ControlWindow {
       captionLog.splice(0)
     })
   }
+
+  public sendErrorMessage(message: string) {
+    this.window?.webContents.send('control.error.send', message)
+  }
 }
 
 export const controlWindow = new ControlWindow()

src/main/utils/engine.ts

@@ -1,103 +1,119 @@
 import { spawn, exec } from 'child_process'
-import { app } from 'electron'
+import { app, BrowserWindow } from 'electron'
 import { is } from '@electron-toolkit/utils'
 import path from 'path'
-import { addCaptionLog, controls } from './config'
+import { addCaptionLog, controls, sendControls } from './config'
+import { controlWindow } from '../control'
 
-export class CaptionEngine { 
-    appPath: string = ''
-    command: string[] = []
-    process: any | undefined
+export class CaptionEngine {
+  appPath: string = ''
+  command: string[] = []
+  process: any | undefined
 
-    private getApp() {
-        if(controls.customized && controls.customizedApp){
-            this.appPath = controls.customizedApp
-            this.command = [ controls.customizedCommand ]
-        }
-        else if(controls.engine === 'gummy'){
-            let gummyName = ''
-            if(process.platform === 'win32'){
-                gummyName = 'main-gummy.exe'
-            }
-            else if(process.platform === 'linux'){
-                gummyName = 'main-gummy'
-            }
-            else{
-                throw new Error('Unsupported platform')
-            }
-            if(is.dev){
-                this.appPath = path.join(
-                    app.getAppPath(),
-                    'python-subprocess', 'dist', gummyName
-                )
-            }
-            else{
-                this.appPath = path.join(
-                    process.resourcesPath,
-                    'python-subprocess', 'dist', gummyName
-                )
-            }
-            this.command = []
-            this.command.push('-s', controls.sourceLang)
-            this.command.push('-t',  controls.translation ? controls.targetLang : 'none')
-            this.command.push('-a', controls.audio ? '1' : '0')
+  private getApp() {
+    if (controls.customized && controls.customizedApp) {
+      this.appPath = controls.customizedApp
+      this.command = [controls.customizedCommand]
+    }
+    else if (controls.engine === 'gummy') {
+      controls.customized = false
+      let gummyName = ''
+      if (process.platform === 'win32') {
+        gummyName = 'main-gummy.exe'
+      }
+      else if (process.platform === 'linux') {
+        gummyName = 'main-gummy'
+      }
+      else {
+        controlWindow.sendErrorMessage('不支持的操作系统平台：' + process.platform)
+        throw new Error('Unsupported platform')
+      }
+      if (is.dev) {
+        this.appPath = path.join(
+          app.getAppPath(),
+          'python-subprocess', 'dist', gummyName
+        )
+      }
+      else {
+        this.appPath = path.join(
+          process.resourcesPath,
+          'python-subprocess', 'dist', gummyName
+        )
+      }
+      this.command = []
+      this.command.push('-s', controls.sourceLang)
+      this.command.push('-t', controls.translation ? controls.targetLang : 'none')
+      this.command.push('-a', controls.audio ? '1' : '0')
 
-            console.log('[INFO] engine', this.appPath)
-            console.log('[INFO] engine command',this.command)
-        }
+      console.log('[INFO] Engine Path:', this.appPath)
+      console.log('[INFO] Engine Command:', this.command)
+    }
+  }
+
+  public start(window: BrowserWindow) {
+    if (this.process) {
+      this.stop();
+    }
+    this.getApp()
+    try {
+      this.process = spawn(this.appPath, this.command)
+    }
+    catch (e) {
+      controlWindow.sendErrorMessage('字幕引擎启动失败：' + e)
+      console.error('[ERROR] Error starting subprocess:', e)
+      return
     }
 
-    public start() {
-        if (this.process) {
-            this.stop();
+    console.log('[INFO] Caption Engine Started: ', {
+      appPath: this.appPath,
+      command: this.command
+    })
+
+    controls.engineEnabled = true
+    sendControls(window)
+    window.webContents.send('control.engine.started')
+
+    this.process.stdout.on('data', (data) => {
+      const lines = data.toString().split('\n');
+      lines.forEach((line: string) => {
+        if (line.trim()) {
+          try {
+            const caption = JSON.parse(line);
+            addCaptionLog(caption);
+          } catch (e) {
+            controlWindow.sendErrorMessage('字幕引擎输出内容无法解析为 JSON 对象：' + e)
+            console.error('[ERROR] Error parsing JSON:', e);
+          }
         }
-        this.getApp()
-        this.process = spawn(this.appPath, this.command)
-        controls.engineEnabled = true
+      });
+    });
 
-        console.log('[INFO] Caption Engine Started: ', {
-            appPath: this.appPath,
-            command: this.command
-        })
+    this.process.stderr.on('data', (data) => {
+      controlWindow.sendErrorMessage('字幕引擎错误：' + data)
+      console.error(`[ERROR] Subprocess Error: ${data}`);
+    });
 
-        this.process.stdout.on('data', (data) => {
-            const lines = data.toString().split('\n');
-            lines.forEach( (line: string) => {
-                if (line.trim()) {
-                    try {
-                        const caption = JSON.parse(line);
-                        addCaptionLog(caption);
-                    } catch (e) {
-                        console.error('Error parsing JSON:', e);
-                    }
-                }
-            });
-        });
-        
-        this.process.stderr.on('data', (data) => {
-            console.error(`Python Error: ${data}`);
-        });
-        
-        this.process.on('close', (code: any) => {
-            console.log(`Python process exited with code ${code}`);
-            this.process = undefined;
+    this.process.on('close', (code: any) => {
+      console.log(`[INFO] Subprocess exited with code ${code}`);
+      this.process = undefined;
+    });
+  }
+
+  public stop() {
+    if (this.process) {
+      if (process.platform === "win32" && this.process.pid) {
+        exec(`taskkill /pid ${this.process.pid} /t /f`, (error) => {
+          if (error) {
+            controlWindow.sendErrorMessage('字幕引擎进程关闭失败：' + error)
+            console.error(`[ERROR] Failed to kill process: ${error}`);
+          }
         });
+      } else {
+        this.process.kill('SIGKILL');
+      }
+      this.process = undefined;
+      controls.engineEnabled = false;
+      console.log('[INFO] Caption engine process stopped');
     }
-
-    public stop() {
-        if (this.process) {
-            if (process.platform === "win32" && this.process.pid) {
-                exec(`taskkill /pid ${this.process.pid} /t /f`, (error) => {
-                    if (error) {
-                        console.error(`Failed to kill process: ${error}`);
-                    }
-                });
-            } else {
-                this.process.kill('SIGKILL');
-            }
-            this.process = undefined;
-            controls.engineEnabled = false;
-            console.log('[INFO] Caption engine process stopped');
-        }
-    }
+  }
 }

src/renderer/src/stores/captionControl.ts

@@ -1,6 +1,9 @@
 import { ref } from 'vue'
 import { defineStore } from 'pinia'
+
 import { notification } from 'ant-design-vue'
+import { ExclamationCircleOutlined } from '@ant-design/icons-vue'
+import { h } from 'vue'
 
 export const useCaptionControlStore = defineStore('captionControl', () => {
   const captionEngine = ref([
@@ -109,6 +112,16 @@ export const useCaptionControlStore = defineStore('captionControl', () => {
     });
   })
 
+  window.electron.ipcRenderer.on('control.error.send', (_, message) => { 
+    notification.open({
+      message: '发生错误',
+      description: message,
+      duration: null,
+      placement: 'topLeft',
+      icon: () => h(ExclamationCircleOutlined, { style: 'color: #ff4d4f' })
+    });
+  })
+
   return {
     captionEngine,      // 字幕引擎
     audioType,          // 音频类型