feat: 添加TTS语音合成功能 - Edge TTS方案完整实现，ChatTTS预留接口

server.py

@@ -11,8 +11,13 @@ from datetime import datetime
 import aiohttp
 from fastapi import FastAPI, UploadFile, File, HTTPException, Form
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import FileResponse
 from pydantic import BaseModel
 
+# 导入 TTS 服务
+from tts_service import tts_manager, AUDIO_DIR
+
 # 配置
 MODEL_SERVICE_URL = os.getenv("MODEL_SERVICE_URL", "http://localhost:19018")
 PORT = int(os.getenv("PORT", "19019"))
@@ -186,6 +191,70 @@ async def delete_conversation(conversation_id: str):
         raise HTTPException(status_code=500, detail=str(e))
 
 
+# ========== TTS 相关接口 ==========
+
+class TTSSettings(BaseModel):
+    """TTS 设置"""
+    provider: str = "none"
+    voice: Optional[str] = None
+
+
+class TTSResponse(BaseModel):
+    """TTS 响应"""
+    audio_url: Optional[str]
+    provider: str
+
+
+@app.get("/tts/providers")
+async def get_tts_providers():
+    """获取可用的 TTS 方案列表"""
+    providers = tts_manager.list_providers()
+    voices = tts_manager.get_edge_voices()
+    return {
+        "providers": providers,
+        "voices": voices,
+        "current": tts_manager.current_provider
+    }
+
+
+@app.post("/tts/settings")
+async def set_tts_settings(settings: TTSSettings):
+    """设置 TTS 方案"""
+    tts_manager.set_provider(settings.provider)
+    
+    # 设置音色（仅 Edge TTS）
+    if settings.provider == "edge" and settings.voice:
+        provider = tts_manager.get_provider("edge")
+        if hasattr(provider, 'set_voice'):
+            provider.set_voice(settings.voice)
+    
+    return {
+        "provider": settings.provider,
+        "voice": settings.voice
+    }
+
+
+@app.post("/tts/synthesize")
+async def synthesize_tts(text: str = Form(...), provider: Optional[str] = Form(None)):
+    """
+    合成语音
+    返回音频文件 URL
+    """
+    try:
+        audio_url = await tts_manager.synthesize(text, provider)
+        return TTSResponse(
+            audio_url=audio_url,
+            provider=provider or tts_manager.current_provider
+        )
+    except Exception as e:
+        logger.error(f"TTS synthesis error: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+# 挂载音频文件目录
+app.mount("/audio", StaticFiles(directory=AUDIO_DIR), name="audio")
+
+
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(app, host="0.0.0.0", port=PORT)