feat: implement separated system and custom prompt management

src/main/presenter/configPresenter/index.ts

@@ -7,6 +7,7 @@ import {
   RENDERER_MODEL_META,
   MCPServerConfig,
   Prompt,
+  SystemPrompt,
   IModelConfig,
   BuiltinKnowledgeConfig
 } from '@shared/presenter'
@@ -90,6 +91,7 @@ export class ConfigPresenter implements IConfigPresenter {
   private store: ElectronStore<IAppSettings>
   private providersModelStores: Map<string, ElectronStore<IModelStore>> = new Map()
   private customPromptsStore: ElectronStore<{ prompts: Prompt[] }>
+  private systemPromptsStore: ElectronStore<{ prompts: SystemPrompt[] }>
   private userDataPath: string
   private currentAppVersion: string
   private mcpConfHelper: McpConfHelper // 使用MCP配置助手
@@ -138,6 +140,22 @@ export class ConfigPresenter implements IConfigPresenter {
       }
     })
 
+    this.systemPromptsStore = new ElectronStore<{ prompts: SystemPrompt[] }>({
+      name: 'system_prompts',
+      defaults: {
+        prompts: [
+          {
+            id: 'default',
+            name: 'DeepChat',
+            content: DEFAULT_SYSTEM_PROMPT,
+            isDefault: true,
+            createdAt: Date.now(),
+            updatedAt: Date.now()
+          }
+        ]
+      }
+    })
+
     // 初始化MCP配置助手
     this.mcpConfHelper = new McpConfHelper()
 
@@ -276,11 +294,43 @@ export class ConfigPresenter implements IConfigPresenter {
       }
     }
 
-    // 0.3.4 版本之前，如果默认系统提示词为空，则设置为内置的默认提示词
-    if (oldVersion && compare(oldVersion, '0.3.4', '<')) {
-      const currentPrompt = this.getSetting<string>('default_system_prompt')
-      if (!currentPrompt || currentPrompt.trim() === '') {
-        this.setSetting('default_system_prompt', DEFAULT_SYSTEM_PROMPT)
+    // 0.3.5 版本之前，处理默认系统提示词的迁移和设置
+    if (oldVersion && compare(oldVersion, '0.3.5', '<')) {
+      try {
+        const currentPrompt = this.getSetting<string>('default_system_prompt')
+        if (!currentPrompt || currentPrompt.trim() === '') {
+          this.setSetting('default_system_prompt', DEFAULT_SYSTEM_PROMPT)
+        }
+        const legacyDefault = this.getSetting<string>('default_system_prompt')
+        if (
+          typeof legacyDefault === 'string' &&
+          legacyDefault.trim() &&
+          legacyDefault.trim() !== DEFAULT_SYSTEM_PROMPT.trim()
+        ) {
+          const prompts = (this.systemPromptsStore.get('prompts') || []) as SystemPrompt[]
+          const now = Date.now()
+          const idx = prompts.findIndex((p) => p.id === 'default')
+          if (idx !== -1) {
+            prompts[idx] = {
+              ...prompts[idx],
+              content: legacyDefault,
+              isDefault: true,
+              updatedAt: now
+            }
+          } else {
+            prompts.push({
+              id: 'default',
+              name: 'DeepChat',
+              content: legacyDefault,
+              isDefault: true,
+              createdAt: now,
+              updatedAt: now
+            })
+          }
+          this.systemPromptsStore.set('prompts', prompts)
+        }
+      } catch (e) {
+        console.warn('Failed to migrate legacy default_system_prompt:', e)
       }
     }
   }
@@ -1181,6 +1231,11 @@ export class ConfigPresenter implements IConfigPresenter {
 
   // 获取默认系统提示词
   async getDefaultSystemPrompt(): Promise<string> {
+    const prompts = await this.getSystemPrompts()
+    const defaultPrompt = prompts.find((p) => p.isDefault)
+    if (defaultPrompt) {
+      return defaultPrompt.content
+    }
     return this.getSetting<string>('default_system_prompt') || ''
   }
 
@@ -1199,6 +1254,55 @@ export class ConfigPresenter implements IConfigPresenter {
     this.setSetting('default_system_prompt', '')
   }
 
+  async getSystemPrompts(): Promise<SystemPrompt[]> {
+    try {
+      return this.systemPromptsStore.get('prompts') || []
+    } catch {
+      return []
+    }
+  }
+
+  async setSystemPrompts(prompts: SystemPrompt[]): Promise<void> {
+    await this.systemPromptsStore.set('prompts', prompts)
+  }
+
+  async addSystemPrompt(prompt: SystemPrompt): Promise<void> {
+    const prompts = await this.getSystemPrompts()
+    prompts.push(prompt)
+    await this.setSystemPrompts(prompts)
+  }
+
+  async updateSystemPrompt(promptId: string, updates: Partial<SystemPrompt>): Promise<void> {
+    const prompts = await this.getSystemPrompts()
+    const index = prompts.findIndex((p) => p.id === promptId)
+    if (index !== -1) {
+      prompts[index] = { ...prompts[index], ...updates }
+      await this.setSystemPrompts(prompts)
+    }
+  }
+
+  async deleteSystemPrompt(promptId: string): Promise<void> {
+    const prompts = await this.getSystemPrompts()
+    const filteredPrompts = prompts.filter((p) => p.id !== promptId)
+    await this.setSystemPrompts(filteredPrompts)
+  }
+
+  async setDefaultSystemPromptId(promptId: string): Promise<void> {
+    const prompts = await this.getSystemPrompts()
+    const updatedPrompts = prompts.map((p) => ({ ...p, isDefault: false }))
+    const targetIndex = updatedPrompts.findIndex((p) => p.id === promptId)
+    if (targetIndex !== -1) {
+      updatedPrompts[targetIndex].isDefault = true
+      await this.setSystemPrompts(updatedPrompts)
+    }
+  }
+
+  async getDefaultSystemPromptId(): Promise<string> {
+    const prompts = await this.getSystemPrompts()
+    const defaultPrompt = prompts.find((p) => p.isDefault)
+    return defaultPrompt?.id || 'default'
+  }
+
   // 获取更新渠道
   getUpdateChannel(): string {
     return this.getSetting<string>('updateChannel') || 'stable'