from core.models.Result import ResultError


def result_is_valid(result):
    if hasattr(result, 'valid'):
        return bool(result.valid)
    if isinstance(result, dict):
        return bool(result.get('valid'))
    return False


def result_data(result):
    if hasattr(result, 'data'):
        return result.data
    if isinstance(result, dict):
        return result.get('data') or result.get('billing_code')
    return None


def result_message(result, default='Operation failed.'):
    if hasattr(result, 'message') and result.message:
        return str(result.message)
    if isinstance(result, dict):
        return str(result.get('message') or result.get('error_code') or default)
    return default


def result_error_value(result, default=ResultError.UNKNOWN.value):
    error_type = None
    if hasattr(result, 'error_type'):
        error_type = result.error_type
    elif isinstance(result, dict):
        error_type = result.get('error_type') or result.get('error_code')

    if error_type is None:
        return default
    if hasattr(error_type, 'value'):
        return str(error_type.value)
    return str(error_type)


def operation_failure_payload(operation, result=None, message=None, exception=None, context=None):
    if exception is not None:
        error_value = ResultError.UNKNOWN.value
        detail = str(exception) or type(exception).__name__
    else:
        error_value = result_error_value(result)
        detail = message or result_message(result)

    title = _operation_title(operation, error_value)
    return {
        'operation': operation,
        'title': title,
        'message': detail,
        'error_type': error_value,
        'severity': _severity_for(error_value),
        'actions': _actions_for(error_value),
        'context': context or {},
    }


def _operation_title(operation, error_value):
    if error_value == ResultError.CONNECTION.value:
        return 'Connection Problem'
    if operation == 'use_ticket' and error_value == ResultError.SUBSCRIPTION.value:
        return 'Ticket Expired'
    if operation == 'use_ticket':
        return 'Ticket Use Failed'
    if operation == 'enable_profile':
        return 'Profile Enable Failed'
    if operation == 'disable_profile':
        return 'Profile Disable Failed'
    return 'Operation Failed'


def _severity_for(error_value):
    if error_value in {
        ResultError.CONNECTION.value,
        ResultError.SUBSCRIPTION.value,
        ResultError.MISSING_FILE.value,
        ResultError.MISSING_DATA.value,
    }:
        return 'warning'
    return 'error'


def _actions_for(error_value):
    if error_value == ResultError.CONNECTION.value:
        return [
            {'key': 'retry', 'label': 'Try Again', 'role': 'primary'},
            {'key': 'cancel', 'label': 'Cancel', 'role': 'secondary'},
        ]
    return [
        {'key': 'dismiss', 'label': 'OK', 'role': 'primary'},
    ]