"""
云屋 - 主程序入口点
实现沉浸式宠物伴侣系统的核心API服务
支持用户认证、聊天交互和实时音频处理
"""

from fastapi import FastAPI, HTTPException, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles
from contextlib import asynccontextmanager
import uvicorn
import logging
from datetime import datetime
import os
import sys

# Add current directory to Python path
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

# Import available routers
from api.chat_router import chat_router
from api.pet_router import pet_router
from api.storage_router import storage_router
from api.user_router import user_router
from api.background_router import background_router
from api.admin_router import admin_router
from api.wechat_auth_router import wechat_auth_router
from api.sms_auth_router import sms_auth_router
from api.cache_router import cache_router
from api.scene_editor_router import scene_editor_router
from api.ai_governance_router import ai_governance_router
from api.live2d_router import live2d_router
from api.fullscreen_router import fullscreen_router
from api.model_config_router import router as model_config_router
from api.voice_chat_router import voice_chat_router
from config.settings import settings
from models.database import init_db

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

@asynccontextmanager
async def lifespan(app: FastAPI):
    # 启动时初始化数据库表
    init_db()  # 使用同步版本
    yield
    # 关闭时可以添加清理逻辑

# Initialize FastAPI app
app = FastAPI(
    title="AI Pet Companion API",
    description="Backend API for the immersive pet companion system",
    version="3.0.0",
    lifespan=lifespan
)

# Add CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.ALLOWED_ORIGINS,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Add static files middleware for uploads
uploads_dir = os.path.abspath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "uploads"))
if not os.path.exists(uploads_dir):
    os.makedirs(uploads_dir)
print(f"Static files directory: {uploads_dir}")

# Mount static files to serve uploads directory
from fastapi.staticfiles import StaticFiles
app.mount("/uploads", StaticFiles(directory=uploads_dir), name="uploads")

# Include all routers with v1 prefix (must be before catch-all route)
app.include_router(user_router, prefix="/api/v1")
app.include_router(chat_router, prefix="/api/v1")
app.include_router(pet_router, prefix="/api/v1")
app.include_router(background_router, prefix="/api/v1/background")
app.include_router(storage_router, prefix="/api/v1")
app.include_router(admin_router, prefix="/api/v1/admin")
app.include_router(wechat_auth_router, prefix="/api/v1/auth/wechat")
app.include_router(sms_auth_router, prefix="/api/v1/auth/sms")
app.include_router(cache_router, prefix="/api/v1/cache")
app.include_router(scene_editor_router, prefix="/api/v1/scene-editor")
app.include_router(ai_governance_router, prefix="/api/v1/ai-governance")
app.include_router(live2d_router, prefix="/api/v1/live2d")
app.include_router(fullscreen_router, prefix="/api/v1/fullscreen")
app.include_router(model_config_router, prefix="/api/v1/model-config")
app.include_router(voice_chat_router, prefix="/api/v1")

# Frontend static files configuration (must be after API routes)
frontend_dist_dir = os.path.abspath(os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "frontend", "dist"))
frontend_assets_dir = os.path.join(frontend_dist_dir, "assets")
frontend_index_path = os.path.join(frontend_dist_dir, "index.html")
print(f"Frontend dist directory: {frontend_dist_dir}")

if os.path.exists(frontend_assets_dir):
    app.mount("/assets", StaticFiles(directory=frontend_assets_dir), name="assets")

if os.path.exists(frontend_index_path):
    @app.get("/{full_path:path}")
    async def serve_frontend(request: Request, full_path: str):
        if os.path.exists(frontend_index_path):
            return FileResponse(frontend_index_path)
        return {"error": "Frontend not found"}

@app.get("/")
async def root():
    return {"message": "AI Pet Companion API is running", "version": "3.0.0"}

@app.get("/debug/routes")
async def debug_routes():
    """Debug endpoint to list all registered routes"""
    routes = []
    for route in app.routes:
        if hasattr(route, 'path') and hasattr(route, 'methods'):
            routes.append({
                "path": route.path,
                "methods": list(route.methods)
            })
    return {"routes": routes}

if __name__ == "__main__":
    uvicorn.run(
        "main:app",
        host=settings.HOST,
        port=settings.PORT,
        reload=settings.DEBUG
    )