"""
BMC Hub - FastAPI Application
Main application entry point
"""

import logging
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from fastapi.responses import RedirectResponse
from contextlib import asynccontextmanager

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

# Import Feature Routers
from app.auth.backend import router as auth_api
from app.auth.backend import views as auth_views
from app.customers.backend import router as customers_api
from app.customers.backend import views as customers_views
from app.contacts.backend import router as contacts_api
from app.contacts.backend import views as contacts_views
from app.vendors.backend import router as vendors_api
from app.vendors.backend import views as vendors_views
from app.settings.backend import router as settings_api
from app.settings.backend import views as settings_views
from app.hardware.backend import router as hardware_api
from app.billing.backend import router as billing_api
from app.system.backend import router as system_api
from app.dashboard.backend import views as dashboard_views
from app.dashboard.backend import router as dashboard_api

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
    handlers=[
        logging.StreamHandler(),
        logging.FileHandler('logs/app.log')
    ]
)

logger = logging.getLogger(__name__)

@asynccontextmanager
async def lifespan(app: FastAPI):
    """Lifecycle management - startup and shutdown"""
    # Startup
    logger.info("🚀 Starting BMC Hub...")
    logger.info(f"Database: {settings.DATABASE_URL}")
    
    init_db()
    
    logger.info("✅ System initialized successfully")
    yield
    # Shutdown
    logger.info("👋 Shutting down...")

# Create FastAPI app
app = FastAPI(
    title="BMC Hub API",
    description="""
    Central management system for BMC Networks.
    
    **Key Features:**
    - Customer management
    - Hardware tracking
    - Service management
    - Billing integration
    """,
    version="1.0.0",
    lifespan=lifespan,
    docs_url="/api/docs",
    redoc_url="/api/redoc",
    openapi_url="/api/openapi.json"
)

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

# Include routers
app.include_router(auth_api.router, prefix="/api/v1/auth", tags=["Authentication"])
app.include_router(customers_api.router, prefix="/api/v1", tags=["Customers"])
app.include_router(contacts_api.router, prefix="/api/v1", tags=["Contacts"])
app.include_router(vendors_api.router, prefix="/api/v1", tags=["Vendors"])
app.include_router(settings_api.router, prefix="/api/v1", tags=["Settings"])
app.include_router(hardware_api.router, prefix="/api/v1", tags=["Hardware"])
app.include_router(billing_api.router, prefix="/api/v1", tags=["Billing"])
app.include_router(system_api.router, prefix="/api/v1", tags=["System"])
app.include_router(dashboard_api.router, prefix="/api/v1/dashboard", tags=["Dashboard"])

# Frontend Routers
app.include_router(auth_views.router, tags=["Frontend"])
app.include_router(dashboard_views.router, tags=["Frontend"])
app.include_router(customers_views.router, tags=["Frontend"])
app.include_router(contacts_views.router, tags=["Frontend"])
app.include_router(vendors_views.router, tags=["Frontend"])
app.include_router(settings_views.router, tags=["Frontend"])

# Serve static files (UI)
app.mount("/static", StaticFiles(directory="static", html=True), name="static")

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

if __name__ == "__main__":
    import uvicorn
    import os
    
    # Only enable reload in local development (not in Docker)
    enable_reload = os.getenv("ENABLE_RELOAD", "false").lower() == "true"
    
    if enable_reload:
        uvicorn.run(
            "main:app",
            host="0.0.0.0",
            port=8000,
            reload=True,
            reload_includes=["*.py"],
            reload_dirs=["app"],
            reload_excludes=[".git/*", "*.pyc", "__pycache__/*", "logs/*", "uploads/*", "data/*"],
            log_level="info"
        )
    else:
        uvicorn.run(
            "main:app",
            host="0.0.0.0",
            port=8000,
            reload=False
        )