from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import JSONResponse
import uvicorn

from database.database import engine, get_db
from database.models import Base
from routers import auth, issues, daily_work, reports, projects
from services.auth_service import create_admin_user

# 데이터베이스 테이블 생성
# 메타데이터 캐시 클리어
Base.metadata.clear()
Base.metadata.create_all(bind=engine)

# FastAPI 앱 생성
app = FastAPI(
    title="M-Project API",
    description="작업보고서 시스템 API",
    version="1.0.0"
)

# CORS 설정 (완전 개방 - CORS 문제 해결)
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=False,  # * origin과 credentials는 함께 사용 불가
    allow_methods=["GET", "POST", "PUT", "DELETE", "OPTIONS"],
    allow_headers=["*"],
    expose_headers=["*"]
)

# 라우터 등록
app.include_router(auth.router)
app.include_router(issues.router)
app.include_router(daily_work.router)
app.include_router(reports.router)
app.include_router(projects.router)

# 시작 시 관리자 계정 생성
@app.on_event("startup")
async def startup_event():
    db = next(get_db())
    create_admin_user(db)
    db.close()

# 루트 엔드포인트
@app.get("/")
async def root():
    return {"message": "M-Project API", "version": "1.0.0"}

# 헬스체크
@app.get("/api/health")
async def health_check():
    return {"status": "healthy"}

# 전역 예외 처리
@app.exception_handler(Exception)
async def global_exception_handler(request: Request, exc: Exception):
    return JSONResponse(
        status_code=500,
        content={"detail": f"Internal server error: {str(exc)}"}
    )

if __name__ == "__main__":
    uvicorn.run(app, host="0.0.0.0", port=8000)