"""
Authentication Service
Handles user authentication, registration, and token management
"""

import logging
from datetime import timedelta
from fastapi import FastAPI, Depends, HTTPException, status
from fastapi.middleware.cors import CORSMiddleware
from fastapi.security import HTTPBearer

from app.core.config import settings
from app.core.database import database_manager
from app.api import auth, users
from app.services.messaging import message_publisher
from shared.monitoring.logging import setup_logging
from shared.monitoring.metrics import MetricsCollector

# Setup logging
setup_logging("auth-service", settings.LOG_LEVEL)
logger = logging.getLogger(__name__)

# Create FastAPI app
app = FastAPI(
    title="Authentication Service",
    description="User authentication and authorization service",
    version="1.0.0"
)

# Initialize metrics collector
metrics_collector = MetricsCollector("auth-service")

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

# Include routers
app.include_router(auth.router, prefix="/auth", tags=["authentication"])
app.include_router(users.router, prefix="/users", tags=["users"])

@app.on_event("startup")
async def startup_event():
    """Application startup"""
    logger.info("Starting Authentication Service")
    
    # Create database tables
    await database_manager.create_tables()
    
    # Initialize message publisher
    await message_publisher.connect()
    
    # Start metrics server
    metrics_collector.start_metrics_server(8080)
    
    logger.info("Authentication Service started successfully")

@app.on_event("shutdown")
async def shutdown_event():
    """Application shutdown"""
    logger.info("Shutting down Authentication Service")
    
    # Cleanup message publisher
    await message_publisher.disconnect()
    
    logger.info("Authentication Service shutdown complete")

@app.get("/health")
async def health_check():
    """Health check endpoint"""
    return {
        "status": "healthy",
        "service": "auth-service",
        "version": "1.0.0"
    }

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)