from __future__ import annotations

import os
from contextlib import asynccontextmanager

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from backend.database import init_db
from backend.routers.admin import router as admin_router
from backend.routers.admin_users import router as admin_users_router
from backend.routers.analyze import router as analyze_router
from backend.routers.auth import router as auth_router
from backend.routers.cases import router as cases_router
from backend.routers.closed_cases import router as closed_cases_router
from backend.routers.geocode import router as geocode_router
from backend.routers.health import router as health_router
from backend.routers.stats import router as stats_router
from backend.routers.water import router as water_router


def _parse_origins(value: str) -> list[str]:
    origins = [origin.strip() for origin in value.split(',') if origin.strip()]
    return origins or ['http://localhost:3000', 'http://127.0.0.1:3000']


cors_origins = _parse_origins(os.getenv('CORS_ORIGINS', 'http://localhost:3000,http://127.0.0.1:3000'))
allow_credentials = os.getenv('CORS_ALLOW_CREDENTIALS', 'true').strip().lower() in {'1', 'true', 'yes', 'on'}
if '*' in cors_origins:
    allow_credentials = False


@asynccontextmanager
async def lifespan(app: FastAPI):
    init_db()
    yield


app = FastAPI(title='Vector API', version='0.1.0', lifespan=lifespan)

app.add_middleware(
    CORSMiddleware,
    allow_origins=cors_origins,
    allow_credentials=allow_credentials,
    allow_methods=['*'],
    allow_headers=['*'],
)


app.include_router(health_router)
app.include_router(auth_router)
app.include_router(analyze_router)
app.include_router(cases_router)
app.include_router(closed_cases_router)
app.include_router(stats_router)
app.include_router(admin_router)
app.include_router(admin_users_router)
app.include_router(water_router)
app.include_router(geocode_router)


@app.get('/')
def root() -> dict[str, str]:
    return {'name': 'Vector API', 'status': 'ok'}