from fastapi import FastAPI, HTTPException
from fastapi.exceptions import RequestValidationError
from fastapi.middleware.cors import CORSMiddleware

from app.api.audit_logs import router as audit_logs_router
from app.api.auth import router as auth_router
from app.api.chat import router as chat_router
from app.api.contracts import router as contracts_router
from app.api.conversations import router as conversations_router
from app.api.files import router as files_router
from app.api.governance import router as governance_router
from app.api.knowledge_bases import router as knowledge_bases_router
from app.api.review_rules import router as review_rules_router
from app.api.reviews import router as reviews_router
from app.api.system import router as system_router
from app.api.templates import router as templates_router
from app.api.tenant_settings import router as tenant_settings_router
from app.api.users import router as users_router
from app.core.config import settings
from app.core.response import error_response, success_response

app = FastAPI(title=settings.app_name)

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

app.include_router(auth_router, prefix=settings.api_v1_prefix)
app.include_router(reviews_router, prefix=settings.api_v1_prefix)
app.include_router(chat_router, prefix=settings.api_v1_prefix)
app.include_router(contracts_router, prefix=settings.api_v1_prefix)
app.include_router(conversations_router, prefix=settings.api_v1_prefix)
app.include_router(files_router, prefix=settings.api_v1_prefix)
app.include_router(governance_router, prefix=settings.api_v1_prefix)
app.include_router(knowledge_bases_router, prefix=settings.api_v1_prefix)
app.include_router(review_rules_router, prefix=settings.api_v1_prefix)
app.include_router(templates_router, prefix=settings.api_v1_prefix)
app.include_router(tenant_settings_router, prefix=settings.api_v1_prefix)
app.include_router(users_router, prefix=settings.api_v1_prefix)
app.include_router(audit_logs_router, prefix=settings.api_v1_prefix)
app.include_router(system_router, prefix=settings.api_v1_prefix)


@app.exception_handler(HTTPException)
async def http_exception_handler(_request, exc: HTTPException):
    return error_response(exc.detail, exc.status_code, exc.status_code)


@app.exception_handler(RequestValidationError)
async def validation_exception_handler(_request, exc: RequestValidationError):
    first_error = exc.errors()[0] if exc.errors() else None
    message = first_error.get("msg", "请求参数校验失败") if first_error else "请求参数校验失败"
    return error_response(message, 422, 422)


@app.get("/health")
def health_check():
    return success_response({"status": "ok"})