"""Application and custom Exceptions."""

from oto import response
from oto.adaptors.flask import flaskify

from backend.constants import error as error_const


class RequestError(Exception):
    """Request Error Exception class."""

    def __init__(self, message, error_code=error_const.BAD_REQUEST_CODE, http_status=400):
        """Constructor.

        Args:
            message (str/dict): Response message
            status_code (int): HTTP status code
        """
        super().__init__()
        self.message = message
        self.error_code = error_code
        self.http_status = http_status

    def __str__(self):
        """Convert message to string."""
        return str(self.message)

    def __eq__(self, other):
        """Compare two RequestError objects."""
        return (
            self.message == other.message and
            self.error_code == other.error_code and
            self.http_status == other.http_status
        )

    def make_flask_response(self):
        """Make Flask Response."""
        return flaskify(response.create_error_response(
            self.error_code, self.message, status=self.http_status))


class ValidationError(RequestError):
    """Validation Error Exception class."""

    def __init__(self, message):
        """Constructor.

        Args:
            message (str/dict): Response message
        """
        super().__init__(message, error_code=error_const.VALIDATION_ERROR_CODE)


class IntegrityError(Exception):
    """IntegrityError Exception."""

    pass