import sys
import os
from pathlib import Path

# 添加项目根目录到 Python 路径
# 无论从哪里运行，都能正确找到 app 模块
current_file = Path(__file__).resolve()
project_root = current_file.parent.parent  # backend/
if str(project_root) not in sys.path:
    sys.path.insert(0, str(project_root))

import uvicorn
from fastapi import FastAPI, Request, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from fastapi.openapi.docs import get_swagger_ui_html
from app.api.endpoints import auth, users, meetings, tags, admin, admin_dashboard, tasks, prompts, knowledge_base, client_downloads, voiceprint, audio, dict_data, hot_words, external_apps, terminals
from app.core.config import UPLOAD_DIR, API_CONFIG

app = FastAPI(
    title="iMeeting API",
    description="iMeeting API说明",
    version="1.1.0",
    docs_url=None,  # 禁用默认docs，使用自定义CDN
    redoc_url=None
)

# 添加CORS中间件
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# 静态文件服务 - 提供音频文件下载
if UPLOAD_DIR.exists():
    app.mount("/uploads", StaticFiles(directory=str(UPLOAD_DIR)), name="uploads")

# 包含API路由
app.include_router(auth.router, prefix="/api", tags=["Authentication"])
app.include_router(users.router, prefix="/api", tags=["Users"])
app.include_router(meetings.router, prefix="/api", tags=["Meetings"])
app.include_router(tags.router, prefix="/api", tags=["Tags"])
app.include_router(admin.router, prefix="/api", tags=["Admin"])
app.include_router(admin_dashboard.router, prefix="/api", tags=["AdminDashboard"])
app.include_router(tasks.router, prefix="/api", tags=["Tasks"])
app.include_router(prompts.router, prefix="/api", tags=["Prompts"])
app.include_router(knowledge_base.router, prefix="/api", tags=["KnowledgeBase"])
app.include_router(client_downloads.router, prefix="/api", tags=["ClientDownloads"])
app.include_router(external_apps.router, prefix="/api", tags=["ExternalApps"])
app.include_router(dict_data.router, prefix="/api", tags=["DictData"])
app.include_router(voiceprint.router, prefix="/api", tags=["Voiceprint"])
app.include_router(audio.router, prefix="/api", tags=["Audio"])
app.include_router(hot_words.router, prefix="/api", tags=["HotWords"])
app.include_router(terminals.router, prefix="/api", tags=["Terminals"])

@app.get("/docs", include_in_schema=False)
async def custom_swagger_ui_html():
    """自定义Swagger UI，使用国内可访问的CDN"""
    return get_swagger_ui_html(
        openapi_url=app.openapi_url,
        title=app.title + " - Swagger UI",
        oauth2_redirect_url=app.swagger_ui_oauth2_redirect_url,
        swagger_js_url="https://unpkg.com/swagger-ui-dist@5.9.0/swagger-ui-bundle.js",
        swagger_css_url="https://unpkg.com/swagger-ui-dist@5.9.0/swagger-ui.css",
    )

@app.get("/")
def read_root():
    return {"message": "Welcome to iMeeting API"}

@app.get("/health")
def health_check():
    """健康检查端点"""
    return {
        "status": "healthy",
        "service": "iMeeting API",
        "version": "1.1.0"
    }

if __name__ == "__main__":
    # 简单的uvicorn配置，避免参数冲突
    uvicorn.run(
        "app.main:app",
        host=API_CONFIG['host'],
        port=API_CONFIG['port'],
        limit_max_requests=1000,
        timeout_keep_alive=30,
        reload=True,
    )