"""FastAPI application entry point for Data Entry App."""

import sys
from pathlib import Path
from contextlib import asynccontextmanager

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

# Add shared modules to path
project_root = Path(__file__).parent.parent.parent.parent
sys.path.insert(0, str(project_root / "shared"))

from app.config import settings
from app.db.database import init_db


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Application lifespan - startup and shutdown events."""
    # Startup
    print(f"Starting {settings.app_name} v{settings.app_version}")

    # Initialize database
    await init_db()
    print("Database initialized")

    # Ensure upload directory exists
    settings.upload_path_resolved
    print(f"Upload path: {settings.upload_path_resolved}")

    yield

    # Shutdown
    print("Shutting down...")


# Create FastAPI app
app = FastAPI(
    title=settings.app_name,
    version=settings.app_version,
    description="API pentru introducere bonuri fiscale cu workflow de aprobare",
    lifespan=lifespan,
)

# CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.cors_origins_list,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Mount static files for uploads (optional - can serve through nginx in prod)
uploads_path = Path(settings.upload_path)
if uploads_path.exists():
    app.mount("/uploads", StaticFiles(directory=str(uploads_path)), name="uploads")


# Health check endpoint
@app.get("/health")
async def health_check():
    """Health check endpoint."""
    return {
        "status": "healthy",
        "app": settings.app_name,
        "version": settings.app_version,
    }


# Import and include routers
from app.routers import receipts, ocr

app.include_router(receipts.router, prefix="/api/receipts", tags=["receipts"])
app.include_router(ocr.router, prefix="/api/ocr", tags=["ocr"])


# Root endpoint
@app.get("/")
async def root():
    """Root endpoint - API information."""
    return {
        "name": settings.app_name,
        "version": settings.app_version,
        "docs": "/docs",
        "health": "/health",
    }