"""
Anexo76 - Aplicación SaaS para gestión de comercio exterior
Backend API con FastAPI + Keycloak + SQLAlchemy
"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
import logging

from core.config import settings
from core.middleware import (
    TenantMiddleware,
    LicenseValidationMiddleware,
    RequestLoggingMiddleware
)
from core.database import init_db
from api.v1.router import router as api_v1_router

# Configurar logging
logging.basicConfig(
    level=logging.INFO if not settings.DEBUG else logging.DEBUG,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)

logger = logging.getLogger(__name__)

# Crear aplicación FastAPI
app = FastAPI(
    title="Anexo76 API",
    version=settings.APP_VERSION,
    description="Aplicación SaaS para gestión de comercio exterior conforme a Anexos 24, 30 y 22 del SAT",
    docs_url="/api/docs" if settings.DEBUG else None,
    redoc_url="/api/redoc" if settings.DEBUG else None,
    openapi_url="/api/openapi.json" if settings.DEBUG else None,
)

# Inicializar la base de datos
@app.on_event("startup")
async def on_startup():
    """Evento de inicio de la aplicación"""
    logger.info("Iniciando la aplicación Anexo76...")
    init_db()
    logger.info("Base de datos inicializada correctamente.")

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

logger.info(f"CORS configurado para orígenes: {settings.cors_origins_list}")

# Agregar middlewares personalizados
app.add_middleware(RequestLoggingMiddleware)
app.add_middleware(LicenseValidationMiddleware)
app.add_middleware(TenantMiddleware)

# Registrar routers
app.include_router(api_v1_router, prefix="/api/v1")

@app.get("/api/")
async def root():
    """Root endpoint"""
    return {
        "name": "Anexo76 API",
        "version": settings.APP_VERSION,
        "status": "running",
        "docs": "/api/docs" if settings.DEBUG else "disabled in production"
    }


@app.get("/api/health")
async def health_check():
    """Health check endpoint"""
    return {
        "status": "healthy",
        "environment": settings.ENVIRONMENT
    }