"""
Weibo-HotSign API Service
Main FastAPI application entry point — account management, task config, signin logs.
"""

from fastapi import FastAPI, Request
from fastapi.exceptions import RequestValidationError
from fastapi.middleware.cors import CORSMiddleware
from starlette.exceptions import HTTPException as StarletteHTTPException

from shared.response import success_response, error_response
from api_service.app.routers import accounts, tasks, signin_logs

app = FastAPI(
    title="Weibo-HotSign API Service",
    version="1.0.0",
    docs_url="/docs",
    redoc_url="/redoc",
)

# CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:3000", "http://localhost:80"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


# ---- Global exception handlers (unified response format) ----

@app.exception_handler(StarletteHTTPException)
async def http_exception_handler(request: Request, exc: StarletteHTTPException):
    return error_response(
        exc.detail,
        f"HTTP_{exc.status_code}",
        status_code=exc.status_code,
    )


@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request: Request, exc: RequestValidationError):
    details = [
        {"field": e["loc"][-1] if e["loc"] else "unknown", "message": e["msg"]}
        for e in exc.errors()
    ]
    return error_response(
        "Validation failed",
        "VALIDATION_ERROR",
        details=details,
        status_code=400,
    )


# ---- Routers ----

app.include_router(accounts.router)
app.include_router(tasks.router)
app.include_router(signin_logs.router)


# ---- Health / root ----

@app.get("/")
async def root():
    return success_response(
        {"service": "Weibo-HotSign API Service", "version": "1.0.0"},
        "Service is running",
    )


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