"""
TCG Vault Backend API
Main FastAPI application entry point
"""

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

from app.database import init_db
from app.routers import cards, collections, decks, ocr, ai, pricing, auth


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Handle application startup and shutdown"""
    # Startup
    print("🚀 Starting TCG Vault API...")
    init_db()
    print("✅ Database initialized")
    yield
    # Shutdown
    print("👋 Shutting down TCG Vault API...")


app = FastAPI(
    title="TCG Vault API",
    description="Trading Card Collection Manager with OCR, AI, and Pricing",
    version="1.0.0",
    lifespan=lifespan
)

# CORS middleware - handle both development and production
allowed_origins = [
    "http://localhost:3000",  # React dev server
    "http://127.0.0.1:3000",  # Alternative dev server
]

# Add production origins from environment variable
if os.getenv("ALLOWED_ORIGINS"):
    production_origins = os.getenv("ALLOWED_ORIGINS").split(",")
    allowed_origins.extend([origin.strip() for origin in production_origins])

# In production, allow common deployment patterns
if os.getenv("RAILWAY_ENVIRONMENT") or os.getenv("RENDER") or os.getenv("VERCEL"):
    # Allow common hosting patterns (you'll set specific domains via ALLOWED_ORIGINS)
    pass

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

# Include routers
app.include_router(auth.router, prefix="/api/v1/auth", tags=["Authentication"])
app.include_router(cards.router, prefix="/api/v1/cards", tags=["Cards"])
app.include_router(collections.router, prefix="/api/v1/collections", tags=["Collections"])
app.include_router(decks.router, prefix="/api/v1/decks", tags=["Decks"])
app.include_router(ocr.router, prefix="/api/v1/ocr", tags=["OCR"])
app.include_router(ai.router, prefix="/api/v1/ai", tags=["AI"])
app.include_router(pricing.router, prefix="/api/v1/pricing", tags=["Pricing"])


@app.get("/")
async def root():
    """Health check endpoint"""
    return {"message": "TCG Vault API is running! 🃏"}


@app.get("/health")
async def health_check():
    """Detailed health check"""
    return {
        "status": "healthy",
        "service": "TCG Vault API",
        "version": "1.0.0"
    }