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

from apscheduler.schedulers.asyncio import AsyncIOScheduler

from app.config import settings
from app.database import engine
from app.routers import auth, todos, events, calendars, reminders, projects, people, locations, settings as settings_router, dashboard, weather, event_templates
from app.routers import totp, admin
from app.jobs.notifications import run_notification_dispatch

# Import models so Alembic's autogenerate can discover them
from app.models import user as _user_model  # noqa: F401
from app.models import session as _session_model  # noqa: F401
from app.models import totp_usage as _totp_usage_model  # noqa: F401
from app.models import backup_code as _backup_code_model  # noqa: F401
from app.models import system_config as _system_config_model  # noqa: F401
from app.models import audit_log as _audit_log_model  # noqa: F401


@asynccontextmanager
async def lifespan(app: FastAPI):
    scheduler = AsyncIOScheduler()
    scheduler.add_job(
        run_notification_dispatch,
        "interval",
        minutes=1,
        id="ntfy_dispatch",
        max_instances=1,  # prevent overlap if a run takes longer than 60s
    )
    scheduler.start()
    yield
    scheduler.shutdown(wait=False)
    await engine.dispose()


_is_dev = settings.ENVIRONMENT == "development"

app = FastAPI(
    title="UMBRA API",
    description="Backend API for UMBRA application",
    version="1.0.0",
    lifespan=lifespan,
    docs_url="/docs" if _is_dev else None,
    redoc_url="/redoc" if _is_dev else None,
    openapi_url="/openapi.json" if _is_dev else None,
)

# CORS configuration
app.add_middleware(
    CORSMiddleware,
    allow_origins=[o.strip() for o in settings.CORS_ORIGINS.split(",") if o.strip()],
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"],
    allow_headers=["Content-Type", "Authorization", "Cookie"],
)

# Include routers with /api prefix
app.include_router(auth.router, prefix="/api/auth", tags=["Authentication"])
app.include_router(todos.router, prefix="/api/todos", tags=["Todos"])
app.include_router(events.router, prefix="/api/events", tags=["Calendar Events"])
app.include_router(calendars.router, prefix="/api/calendars", tags=["Calendars"])
app.include_router(reminders.router, prefix="/api/reminders", tags=["Reminders"])
app.include_router(projects.router, prefix="/api/projects", tags=["Projects"])
app.include_router(people.router, prefix="/api/people", tags=["People"])
app.include_router(locations.router, prefix="/api/locations", tags=["Locations"])
app.include_router(settings_router.router, prefix="/api/settings", tags=["Settings"])
app.include_router(dashboard.router, prefix="/api", tags=["Dashboard"])
app.include_router(weather.router, prefix="/api/weather", tags=["Weather"])
app.include_router(event_templates.router, prefix="/api/event-templates", tags=["Event Templates"])
app.include_router(totp.router, prefix="/api/auth", tags=["TOTP MFA"])
app.include_router(admin.router, prefix="/api/admin", tags=["Admin"])


@app.get("/")
async def root():
    return {"message": "UMBRA API is running"}


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