# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
import datetime


class VerificationException(Exception):
    def __init__(self, reason):
        self.reason = reason

    def __str__(self):
        return self.reason


class NotFound(VerificationException):
    def __init__(self, object_type, search_params):
        self.object_type = object_type
        self.search_params = search_params
        self.reason = "Couldn't find %s using %s" % (self.object_type,
                                                     self.search_params)


class AmbiguousResults(VerificationException):
    def __init__(self, object_type, search_params):
        self.object_type = object_type
        self.search_params = search_params
        msg = "Ambiguous results for %s using %s" % (self.object_type,
                                                     self.search_params)
        self.reason = msg


class FieldMismatch(VerificationException):
    def __init__(self, field_name, expected, actual, uuid):
        self.field_name = field_name
        self.expected = expected
        self.actual = actual
        self.reason = \
            "Failed at {failed_at} UTC for {uuid}: Expected {field_name} " \
            "to be '{expected}' got '{actual}'".\
            format(failed_at=datetime.datetime.utcnow(), uuid=uuid,
                   field_name=field_name, expected=expected,
                   actual=actual)


class NullFieldException(VerificationException):
    def __init__(self, field_name, exist_id, uuid):
        self.field_name = field_name
        self.reason = \
            "Failed at {failed_at} UTC for {uuid}: {field_name} field " \
            "was null for exist id {exist_id}".format(
                failed_at=datetime.datetime.utcnow(), uuid=uuid,
                field_name=field_name, exist_id=exist_id)


class WrongTypeException(VerificationException):
    def __init__(self, field_name, value, exist_id, uuid):
        self.field_name = field_name
        self.reason = \
            "Failed at {failed_at} UTC for {uuid}: " \
            "{{{field_name}: {value}}} was of incorrect type for " \
            "exist id {exist_id}".format(
                failed_at=datetime.datetime.utcnow(), uuid=uuid,
                field_name=field_name, value=value, exist_id=exist_id)