from __future__ import annotations

import logging
from contextlib import asynccontextmanager
from pathlib import Path

from fastapi import FastAPI
from fastapi.responses import FileResponse
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles

from app.config import configure_logging, get_settings
from app.routes.overview import router as overview_router
from app.routes.services import router as services_router
from app.routes.storage import router as storage_router
from app.routes.system import router as system_router


logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    settings = get_settings()
    configure_logging(settings.app_log_level)
    logger.info("Starting %s v%s in %s mode", settings.app_name, settings.app_version, settings.app_env)
    logger.info(
        "Config loaded: HOME_ASSISTANT_BASE_URL=%s HOME_ASSISTANT_TOKEN_SET=%s BESZEL_BASE_URL=%s DOCKER_PROXY_BASE_URL=%s UPTIME_KUMA_BASE_URL=%s",
        bool(settings.home_assistant_base_url),
        bool(settings.home_assistant_token),
        bool(settings.beszel_base_url),
        bool(settings.docker_proxy_base_url),
        bool(settings.uptime_kuma_base_url),
    )
    yield
    logger.info("Stopping %s", settings.app_name)


settings = get_settings()

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

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

app.include_router(overview_router)
app.include_router(system_router)
app.include_router(services_router)
app.include_router(storage_router)

assets_dir = settings.app_root_dir / "assets"
dashboard_file = settings.app_root_dir / "dashboard.html"

if assets_dir.exists():
    app.mount("/assets", StaticFiles(directory=assets_dir), name="assets")


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


@app.get("/", include_in_schema=False)
async def dashboard() -> FileResponse:
    return FileResponse(dashboard_file)