# middleware/error_handler.py
"""Summary description ....

This module provides classes and functions for:
- ....
- ....
- ....
"""

import logging

from fastapi import HTTPException, Request
from fastapi.exceptions import RequestValidationError
from fastapi.responses import JSONResponse

logger = logging.getLogger(__name__)


async def custom_http_exception_handler(request: Request, exc: HTTPException):
    """Handle HTTP exception."""
    logger.error(
        f"HTTP {exc.status_code}: {exc.detail} - {request.method} {request.url}"
    )

    return JSONResponse(
        status_code=exc.status_code,
        content={
            "error": {
                "code": exc.status_code,
                "message": exc.detail,
                "type": "http_exception",
            }
        },
    )


async def validation_exception_handler(request: Request, exc: RequestValidationError):
    """Handle Pydantic validation errors."""
    logger.error(f"Validation error: {exc.errors()} - {request.method} {request.url}")

    return JSONResponse(
        status_code=422,
        content={
            "error": {
                "code": 422,
                "message": "Validation error",
                "type": "validation_error",
                "details": exc.errors(),
            }
        },
    )


async def general_exception_handler(request: Request, exc: Exception):
    """Handle unexpected exceptions."""
    logger.error(
        f"Unexpected error: {str(exc)} - {request.method} {request.url}", exc_info=True
    )

    return JSONResponse(
        status_code=500,
        content={
            "error": {
                "code": 500,
                "message": "Internal server error",
                "type": "server_error",
            }
        },
    )