"""
Movie Map Backend - FastAPI application
"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from pathlib import Path
import os
import logging
from contextlib import asynccontextmanager

from app.api import collection, watched, pins, admin, tmdb, missing_locations
from app.core.config import settings
from app.core.database import init_db, close_db

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Startup and shutdown events"""
    # Startup
    logger.info("Initializing database connection...")
    await init_db()
    yield
    # Shutdown
    logger.info("Closing database connection...")
    await close_db()


app = FastAPI(title="Movie Map API", version="1.0.0", lifespan=lifespan)

# CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],  # In production, restrict this
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# API routes
app.include_router(collection.router, prefix="/api/collection", tags=["collection"])
app.include_router(watched.router, prefix="/api/watched", tags=["watched"])
app.include_router(pins.router, prefix="/api/pins", tags=["pins"])
app.include_router(admin.router, prefix="/admin", tags=["admin"])
app.include_router(tmdb.router, prefix="/api/tmdb", tags=["tmdb"])
app.include_router(missing_locations.router, prefix="/api/collection/missing-locations", tags=["missing-locations"])

# Serve frontend static files
# Check multiple possible locations (dev, Nix build, etc.)
frontend_paths = [
    Path(__file__).parent.parent / "frontend" / "dist",  # Dev mode
    Path(__file__).parent / "frontend" / "dist",  # Nix build
    Path(__file__).parent / "frontend",  # Fallback
]

frontend_path = None
for path in frontend_paths:
    if path.exists():
        frontend_path = path
        break

if frontend_path:
    logger.info(f"Serving frontend from {frontend_path}")
    app.mount("/", StaticFiles(directory=str(frontend_path), html=True), name="static")
else:
    logger.warning("Frontend static files not found - API only mode")


@app.get("/api/health")
async def health():
    """Health check endpoint"""
    return {"status": "ok"}