from fastapi import FastAPI
from fastapi.exceptions import RequestValidationError
from fastapi.middleware.cors import CORSMiddleware
from sqlalchemy.exc import IntegrityError

from app.api import auth, mappings, exceptions, exports, reconciliation, tasks
from app.core.config import get_settings
from app.core.error_handlers import (
    generic_exception_handler,
    http_exception_handler,
    integrity_error_handler,
    s2f_exception_handler,
    validation_exception_handler,
)
from app.core.exceptions import S2FException
from app.core.logging import configure_logging

settings = get_settings()
configure_logging(settings.log_level)

app = FastAPI(
    title=settings.app_name,
    version=settings.app_version,
    debug=settings.debug,
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.allowed_origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# 注册异常处理器
app.add_exception_handler(S2FException, s2f_exception_handler)
app.add_exception_handler(RequestValidationError, validation_exception_handler)
app.add_exception_handler(IntegrityError, integrity_error_handler)
app.add_exception_handler(Exception, generic_exception_handler)

# 注册路由
app.include_router(auth.router)
app.include_router(mappings.router)
app.include_router(exceptions.router)
app.include_router(exports.router)
app.include_router(reconciliation.router)
app.include_router(tasks.router)


@app.get("/api/health", tags=["health"])
async def health_check() -> dict[str, str]:
    return {
        "status": "ok",
        "service": settings.app_name,
        "version": settings.app_version,
    }