import os
import shutil

from helpers.dictionary import Field, Row, Dictionary, DictionaryStructure, Layout

KEY_FIELDS = {
    "simple": [
        Field("KeyField", 'UInt64', is_key=True, default_value_for_get=9999999)
    ],
    "complex": [
        Field("KeyField1", 'UInt64', is_key=True, default_value_for_get=9999999),
        Field("KeyField2", 'String', is_key=True, default_value_for_get='xxxxxxxxx')
    ],
    "ranged": [
        Field("KeyField1", 'UInt64', is_key=True),
        Field("KeyField2", 'Date', is_range_key=True)
    ]
}

START_FIELDS = {
    "simple": [],
    "complex": [],
    "ranged" : [
        Field("StartDate", 'Date', range_hash_type='min'),
        Field("EndDate", 'Date', range_hash_type='max')
    ]
}

MIDDLE_FIELDS = [
    Field("UInt8_", 'UInt8', default_value_for_get=55),
    Field("UInt16_", 'UInt16', default_value_for_get=66),
    Field("UInt32_", 'UInt32', default_value_for_get=77),
    Field("UInt64_", 'UInt64', default_value_for_get=88),
    Field("Int8_", 'Int8', default_value_for_get=-55),
    Field("Int16_", 'Int16', default_value_for_get=-66),
    Field("Int32_", 'Int32', default_value_for_get=-77),
    Field("Int64_", 'Int64', default_value_for_get=-88),
    Field("UUID_", 'UUID', default_value_for_get='550e8400-0000-0000-0000-000000000000'),
    Field("Date_", 'Date', default_value_for_get='2018-12-30'),
    Field("DateTime_", 'DateTime', default_value_for_get='2018-12-30 00:00:00'),
    Field("String_", 'String', default_value_for_get='hi'),
    Field("Float32_", 'Float32', default_value_for_get=555.11),
    Field("Float64_", 'Float64', default_value_for_get=777.11),
]

END_FIELDS = {
    "simple" : [
        Field("ParentKeyField", "UInt64", default_value_for_get=444, hierarchical=True)
    ],
    "complex" : [],
    "ranged" : []
}

LAYOUTS_SIMPLE = ["flat", "hashed", "cache", "direct"]
LAYOUTS_COMPLEX = ["complex_key_hashed", "complex_key_cache", "complex_key_direct"]
LAYOUTS_RANGED = ["range_hashed"]

VALUES = {
    "simple": [
        [1, 22, 333, 4444, 55555, -6, -77,
         -888, -999, '550e8400-e29b-41d4-a716-446655440003',
         '1973-06-28', '1985-02-28 23:43:25', 'hello', 22.543, 3332154213.4, 0],
        [2, 3, 4, 5, 6, -7, -8,
         -9, -10, '550e8400-e29b-41d4-a716-446655440002',
         '1978-06-28', '1986-02-28 23:42:25', 'hello', 21.543, 3222154213.4, 1]
    ],
    "complex": [
        [1, 'world', 22, 333, 4444, 55555, -6,
         -77, -888, -999, '550e8400-e29b-41d4-a716-446655440003',
         '1973-06-28', '1985-02-28 23:43:25',
         'hello', 22.543, 3332154213.4],
        [2, 'qwerty2', 52, 2345, 6544, 9191991, -2,
         -717, -81818, -92929, '550e8400-e29b-41d4-a716-446655440007',
         '1975-09-28', '2000-02-28 23:33:24',
         'my', 255.543, 3332221.44]
    ],
    "ranged": [
        [1, '2019-02-10', '2019-02-01', '2019-02-28',
         22, 333, 4444, 55555, -6, -77, -888, -999,
         '550e8400-e29b-41d4-a716-446655440003',
         '1973-06-28', '1985-02-28 23:43:25', 'hello',
         22.543, 3332154213.4],
        [2, '2019-04-10', '2019-04-01', '2019-04-28',
         11, 3223, 41444, 52515, -65, -747, -8388, -9099,
         '550e8400-e29b-41d4-a716-446655440004',
         '1973-06-29', '2002-02-28 23:23:25', '!!!!',
         32.543, 3332543.4]
    ]
}


SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
DICT_CONFIG_PATH = os.path.join(SCRIPT_DIR, 'configs', 'dictionaries')

class BaseLayoutTester:
    def __init__(self, test_name):
        self.test_name = test_name
        self.layouts = []

    def get_dict_directory(self):
        return os.path.join(DICT_CONFIG_PATH, self.test_name)

    def cleanup(self):
        shutil.rmtree(self.get_dict_directory(), ignore_errors=True)
        os.makedirs(self.get_dict_directory())

    def list_dictionaries(self):
        dictionaries = []
        directory = self.get_dict_directory()
        for fname in os.listdir(directory):
            dictionaries.append(os.path.join(directory, fname))
        return dictionaries 

    def create_dictionaries(self, source_):
        for layout in self.layouts:
            if source_.compatible_with_layout(Layout(layout)):
                self.layout_to_dictionary[layout] = self.get_dict(source_, Layout(layout), self.fields)

    def prepare(self, cluster_):
        for _, dictionary in list(self.layout_to_dictionary.items()):
            dictionary.prepare_source(cluster_)
            dictionary.load_data(self.data)

    def get_dict(self, source, layout, fields, suffix_name=''):
        structure = DictionaryStructure(layout, fields)
        dict_name = source.name + "_" + layout.name + '_' + suffix_name
        dict_path = os.path.join(self.get_dict_directory(), dict_name + '.xml')
        dictionary = Dictionary(dict_name, structure, source, dict_path, "table_" + dict_name, fields)
        dictionary.generate_config()
        return dictionary

class SimpleLayoutTester(BaseLayoutTester):
    def __init__(self, test_name):
        self.fields = KEY_FIELDS["simple"] + START_FIELDS["simple"] + MIDDLE_FIELDS + END_FIELDS["simple"]
        self.values = VALUES["simple"]
        self.data = [Row(self.fields, vals) for vals in self.values]
        self.layout_to_dictionary = dict()
        self.test_name = test_name
        self.layouts = LAYOUTS_SIMPLE

    def execute(self, layout_name, node):
        if layout_name not in self.layout_to_dictionary:
            raise RuntimeError("Source doesn't support layout: {}".format(layout_name))

        dct = self.layout_to_dictionary[layout_name]

        node.query("system reload dictionaries")
        queries_with_answers = []

        for row in self.data:
            for field in self.fields:
                if not field.is_key:
                    for query in dct.get_select_get_queries(field, row):
                        queries_with_answers.append((query, row.get_value_by_name(field.name)))

                    for query in dct.get_select_has_queries(field, row):
                        queries_with_answers.append((query, 1))

                    for query in dct.get_select_get_or_default_queries(field, row):
                        queries_with_answers.append((query, field.default_value_for_get))

        for query in dct.get_hierarchical_queries(self.data[0]):
            queries_with_answers.append((query, [1]))

        for query in dct.get_hierarchical_queries(self.data[1]):
            queries_with_answers.append((query, [2, 1]))

        for query in dct.get_is_in_queries(self.data[0], self.data[1]):
            queries_with_answers.append((query, 0))

        for query in dct.get_is_in_queries(self.data[1], self.data[0]):
            queries_with_answers.append((query, 1))

        for query, answer in queries_with_answers:
            # print query
            if isinstance(answer, list):
                answer = str(answer).replace(' ', '')
            answer = str(answer) + '\n'
            node_answer = node.query(query)
            assert str(node_answer).strip() == answer.strip(), f"Expected '{answer.strip()}', got '{node_answer.strip()}' in query '{query}'"


class ComplexLayoutTester(BaseLayoutTester):
    def __init__(self, test_name):
        self.fields = KEY_FIELDS["complex"] + START_FIELDS["complex"] + MIDDLE_FIELDS + END_FIELDS["complex"]
        self.values = VALUES["complex"]
        self.data = [Row(self.fields, vals) for vals in self.values]
        self.layout_to_dictionary = dict()
        self.test_name = test_name
        self.layouts = LAYOUTS_COMPLEX

    def execute(self, layout_name, node):
        if layout_name not in self.layout_to_dictionary:
            raise RuntimeError("Source doesn't support layout: {}".format(layout_name))

        dct = self.layout_to_dictionary[layout_name]

        node.query("system reload dictionaries")
        queries_with_answers = []

        for row in self.data:
            for field in self.fields:
                if not field.is_key:
                    for query in dct.get_select_get_queries(field, row):
                        queries_with_answers.append((query, row.get_value_by_name(field.name)))

                    for query in dct.get_select_has_queries(field, row):
                        queries_with_answers.append((query, 1))

                    for query in dct.get_select_get_or_default_queries(field, row):
                        queries_with_answers.append((query, field.default_value_for_get))

        for query, answer in queries_with_answers:
            # print query
            node_answer = node.query(query)
            answer = str(answer) + '\n'
            assert node_answer == answer, f"Expected '{answer.strip()}', got '{node_answer.strip()}' in query '{query}'"


class RangedLayoutTester(BaseLayoutTester):
    def __init__(self, test_name):
        self.fields = KEY_FIELDS["ranged"] + START_FIELDS["ranged"] + MIDDLE_FIELDS + END_FIELDS["ranged"]
        self.values = VALUES["ranged"]
        self.data = [Row(self.fields, vals) for vals in self.values]
        self.layout_to_dictionary = dict()
        self.test_name = test_name
        self.layouts = LAYOUTS_RANGED

    def execute(self, layout_name, node):

        if layout_name not in self.layout_to_dictionary:
            raise RuntimeError("Source doesn't support layout: {}".format(layout_name))

        dct = self.layout_to_dictionary[layout_name]

        node.query("system reload dictionaries")

        queries_with_answers = []
        for row in self.data:
            for field in self.fields:
                if not field.is_key and not field.is_range:
                    for query in dct.get_select_get_queries(field, row):
                        queries_with_answers.append((query, row.get_value_by_name(field.name)))

        for query, answer in queries_with_answers:
            # print query
            node_answer = node.query(query)
            answer = str(answer) + '\n'
            assert node_answer == answer, f"Expected '{answer.strip()}', got '{node_answer.strip()}' in query '{query}'"