"""FastAPI application entry point."""

import logging

from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse

from app.api import auth, boards, export, groups, images, library, quality, sharing
from app.core.config import settings
from app.core.errors import WebRefException
from app.core.logging import setup_logging
from app.core.middleware import setup_middleware

# Setup logging
setup_logging()
logger = logging.getLogger(__name__)

# Create FastAPI application
app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    description="Reference Board Viewer - Web-based visual reference management",
    docs_url="/docs",
    redoc_url="/redoc",
    openapi_url=f"{settings.API_V1_PREFIX}/openapi.json",
)

# Setup middleware
setup_middleware(app)


# Exception handlers
@app.exception_handler(WebRefException)
async def webref_exception_handler(request: Request, exc: WebRefException):
    """Handle custom WebRef exceptions."""
    logger.error(f"WebRef exception: {exc.message}", extra={"details": exc.details})
    return JSONResponse(
        status_code=exc.status_code,
        content={
            "error": exc.message,
            "details": exc.details,
            "status_code": exc.status_code,
        },
    )


@app.exception_handler(Exception)
async def general_exception_handler(request: Request, exc: Exception):
    """Handle unexpected exceptions."""
    logger.exception("Unexpected error occurred")
    return JSONResponse(
        status_code=500,
        content={
            "error": "Internal server error",
            "details": str(exc) if settings.DEBUG else {},
            "status_code": 500,
        },
    )


# Health check endpoint
@app.get("/health", tags=["System"])
async def health_check():
    """Health check endpoint."""
    return {
        "status": "healthy",
        "version": settings.APP_VERSION,
        "app": settings.APP_NAME,
    }


# Root endpoint
@app.get("/", tags=["System"])
async def root():
    """Root endpoint with API information."""
    return {
        "message": f"Welcome to {settings.APP_NAME} API",
        "version": settings.APP_VERSION,
        "docs": "/docs",
        "health": "/health",
    }


# API routers
app.include_router(auth.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(boards.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(groups.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(images.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(sharing.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(export.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(library.router, prefix=f"{settings.API_V1_PREFIX}")
app.include_router(quality.router, prefix=f"{settings.API_V1_PREFIX}")


@app.on_event("startup")
async def startup_event():
    """Application startup tasks."""
    logger.info(f"Starting {settings.APP_NAME} v{settings.APP_VERSION}")
    logger.info(f"Debug mode: {settings.DEBUG}")
    logger.info(f"API prefix: {settings.API_V1_PREFIX}")


@app.on_event("shutdown")
async def shutdown_event():
    """Application shutdown tasks."""
    logger.info(f"Shutting down {settings.APP_NAME}")