#
# 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
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# 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 os

import pytest

import distill
from tests import testing_utils
from tests.data_config import DATA_DIR


def test_segments_constructor():
    segments = distill.Segments()
    assert len(segments) == 0
    assert segments.get_segment_list() == []


def test_segments_general():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    assert isinstance(segments, distill.Segments)
    assert len(segments) == 4

    index = 0
    for segment in segments:
        assert segment.segment_name == str(index)
        index += 1


def test_segments_subscript_get():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    assert isinstance(segments["0"], distill.Segment)
    assert segments["0"].get_segment_name() == "0"
    assert segments[0].get_segment_name() == "0"
    assert segments["1"].get_segment_name() == "1"
    assert segments[1].get_segment_name() == "1"
    assert segments["2"].get_segment_name() == "2"
    assert segments[2].get_segment_name() == "2"
    assert segments["3"].get_segment_name() == "3"
    assert segments[3].get_segment_name() == "3"


def test_segments_subscript_set():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    segment1 = distill.Segment()
    segment1.segment_name = "test"

    segment2 = distill.Segment()
    segment2.segment_name = "test2"

    segment3 = distill.Segment()
    segment3.segment_name = "test"
    segment3.num_logs = 5

    assert len(segments) == 4

    segments["test"] = segment1
    assert len(segments) == 5
    assert segments["test"] == segment1

    segments["test"] = segment3
    assert len(segments) == 5
    assert segments["test"].num_logs == 5

    segments[0] = segment2
    assert len(segments) == 5
    assert segments["test2"] == segment2
    assert segments[0] == segment2


def test_segments_subscript_set_error1():
    with pytest.raises(distill.SegmentationError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segment1 = distill.Segment()
        segment1.segment_name = "test"

        segments["0"] = segment1


def test_segments_subscript_set_error2():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments[0] = 0


def test_segments_subscript_set_error3():
    with pytest.raises(distill.SegmentationError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segment1 = distill.Segment()

        segments[4] = segment1


def test_get_segment_list():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    segments_list = segments.get_segment_list()
    assert isinstance(segments_list, list)
    assert len(segments_list) == 4


def test_get_segment_name_dict():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    segments_dict = segments.get_segment_name_dict()
    assert isinstance(segments_dict, dict)
    assert len(segments_dict) == 4


def test_get_segment_name_dict_error():
    with pytest.raises(distill.SegmentationError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)
        for segment in segments:
            segment.segment_name = "test"

        segments.get_segment_name_dict()


def test_get_num_logs():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)
    assert len(segments) == 4

    result1 = segments.get_num_logs(3)
    assert len(result1) == 3

    for segment in result1:
        assert segment.num_logs >= 3

    result2 = segments.get_num_logs(20)
    assert len(result2) == 0


def test_get_segments_before_integer():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    result1 = segments.get_segments_before(1623691895656)
    assert len(result1) == 0

    result2 = segments.get_segments_before(1623691900656)
    assert len(result2) == 1
    assert result2[0].segment_name == "0"

    result3 = segments.get_segments_before(1623691905656)
    assert len(result3) == 2
    assert result3[0].segment_name == "0"
    assert result3[1].segment_name == "1"

    result4 = segments.get_segments_before(1623691910656)
    assert len(result4) == 3
    assert result4[0].segment_name == "0"
    assert result4[1].segment_name == "1"
    assert result4[2].segment_name == "2"

    result5 = segments.get_segments_before(2623691910656)
    assert len(result5) == 4
    assert result5[0].segment_name == "0"
    assert result5[1].segment_name == "1"
    assert result5[2].segment_name == "2"
    assert result5[3].segment_name == "3"


def test_get_segments_after_integer():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    result1 = segments.get_segments_after(1623691909728)
    assert len(result1) == 0

    result2 = segments.get_segments_after(1623691900656)
    assert len(result2) == 1
    assert result2[0].segment_name == "3"

    result3 = segments.get_segments_after(1623691895656)
    assert len(result3) == 2
    assert result3[0].segment_name == "2"
    assert result3[1].segment_name == "3"

    result4 = segments.get_segments_after(1623691890656)
    assert len(result4) == 3
    assert result4[0].segment_name == "1"
    assert result4[1].segment_name == "2"
    assert result4[2].segment_name == "3"

    result5 = segments.get_segments_after(1623691000000)
    assert len(result5) == 4
    assert result5[0].segment_name == "0"
    assert result5[1].segment_name == "1"
    assert result5[2].segment_name == "2"
    assert result5[3].segment_name == "3"


def test_get_segments_before_datetime():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "datetime")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    result1 = segments.get_segments_before(testing_utils.to_datetime(1623691895656))
    assert len(result1) == 0

    result2 = segments.get_segments_before(testing_utils.to_datetime(1623691900656))
    assert len(result2) == 1
    assert result2[0].segment_name == "0"

    result3 = segments.get_segments_before(testing_utils.to_datetime(1623691905656))
    assert len(result3) == 2
    assert result3[0].segment_name == "0"
    assert result3[1].segment_name == "1"

    result4 = segments.get_segments_before(testing_utils.to_datetime(1623691910656))
    assert len(result4) == 3
    assert result4[0].segment_name == "0"
    assert result4[1].segment_name == "1"
    assert result4[2].segment_name == "2"

    result5 = segments.get_segments_before(testing_utils.to_datetime(2623691910656))
    assert len(result5) == 4
    assert result5[0].segment_name == "0"
    assert result5[1].segment_name == "1"
    assert result5[2].segment_name == "2"
    assert result5[3].segment_name == "3"


def test_get_segments_after_datetime():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "datetime")
    sorted_dict = data[1]

    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    result1 = segments.get_segments_after(testing_utils.to_datetime(1623691909728))
    assert len(result1) == 0

    result2 = segments.get_segments_after(testing_utils.to_datetime(1623691900656))
    assert len(result2) == 1
    assert result2[0].segment_name == "3"

    result3 = segments.get_segments_after(testing_utils.to_datetime(1623691895656))
    assert len(result3) == 2
    assert result3[0].segment_name == "2"
    assert result3[1].segment_name == "3"

    result4 = segments.get_segments_after(testing_utils.to_datetime(1623691890656))
    assert len(result4) == 3
    assert result4[0].segment_name == "1"
    assert result4[1].segment_name == "2"
    assert result4[2].segment_name == "3"

    result5 = segments.get_segments_after(testing_utils.to_datetime(1623691000000))
    assert len(result5) == 4
    assert result5[0].segment_name == "0"
    assert result5[1].segment_name == "1"
    assert result5[2].segment_name == "2"
    assert result5[3].segment_name == "3"


def test_get_segments_before_error_1():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments.get_segments_before(testing_utils.to_datetime(1623691895656))


def test_get_segments_before_error_2():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments.get_segments_before("random")


def test_get_segments_of_type():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "datetime")
    sorted_data = data[0]
    sorted_dict = data[1]

    # Create Segments with fixed time
    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    # Create Segments with create_segment
    start_end_vals = []
    start_end_vals.append(
        (sorted_data[0][1]["clientTime"], sorted_data[18][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[5][1]["clientTime"], sorted_data[6][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[3][1]["clientTime"], sorted_data[9][1]["clientTime"])
    )

    segment_names = [
        "test_segment_all",
        "test_segment_same_client_time",
        "test_segment_extra_log",
    ]

    create_segments = distill.create_segment(sorted_dict, segment_names, start_end_vals)

    segments.append_segments(create_segments)
    assert len(segments) == 7

    only_fixed_time = segments.get_segments_of_type(distill.Segment_Type.FIXED_TIME)
    assert len(only_fixed_time) == 4
    for segment in only_fixed_time:
        assert segment.segment_type == distill.Segment_Type.FIXED_TIME

    only_create = segments.get_segments_of_type(distill.Segment_Type.CREATE)
    assert len(only_create) == 3
    for segment in only_create:
        assert segment.segment_type == distill.Segment_Type.CREATE

    only_deadspace = segments.get_segments_of_type(distill.Segment_Type.DEADSPACE)
    assert len(only_deadspace) == 0


def test_get_segments_of_type_error():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "datetime"
        )
        sorted_dict = data[1]
        segments = distill.generate_fixed_time_segments(sorted_dict, 5)
        segments.get_segments_of_type("random")


def test_append():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_data = data[0]
    sorted_dict = data[1]

    # Create Segments with fixed time
    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    # Create Segments with create_segment
    start_end_vals = []
    start_end_vals.append(
        (sorted_data[0][1]["clientTime"], sorted_data[18][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[5][1]["clientTime"], sorted_data[6][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[3][1]["clientTime"], sorted_data[9][1]["clientTime"])
    )
    segment_names = [
        "test_segment_all",
        "test_segment_same_client_time",
        "test_segment_extra_log",
    ]
    create_segments = distill.create_segment(sorted_dict, segment_names, start_end_vals)

    segments.append(create_segments[0])

    assert len(segments) == 5
    assert segments[-1].segment_name == "test_segment_all"


def test_append_error():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        # Create Segments with fixed time
        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments.append("random")


def test_append_segments():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_data = data[0]
    sorted_dict = data[1]

    # Create Segments with fixed time
    segments = distill.generate_fixed_time_segments(sorted_dict, 5)

    # Create Segments with create_segment
    start_end_vals = []
    start_end_vals.append(
        (sorted_data[0][1]["clientTime"], sorted_data[18][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[5][1]["clientTime"], sorted_data[6][1]["clientTime"])
    )
    start_end_vals.append(
        (sorted_data[3][1]["clientTime"], sorted_data[9][1]["clientTime"])
    )
    segment_names = [
        "test_segment_all",
        "test_segment_same_client_time",
        "test_segment_extra_log",
    ]
    create_segments = distill.create_segment(sorted_dict, segment_names, start_end_vals)

    segments.append_segments(create_segments)
    assert len(segments) == 7
    assert segments[0].segment_name == "0"
    assert segments[1].segment_name == "1"
    assert segments[2].segment_name == "2"
    assert segments[3].segment_name == "3"
    assert segments[4].segment_name == "test_segment_all"
    assert segments[5].segment_name == "test_segment_same_client_time"
    assert segments[6].segment_name == "test_segment_extra_log"


def test_append_segments_error():
    with pytest.raises(TypeError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        # Create Segments with fixed time
        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments.append_segments("random")


def test_delete():
    data = testing_utils.setup(os.path.join(DATA_DIR, "sample_data.json"), "integer")
    sorted_dict = data[1]

    # Create Segments with fixed time
    segments = distill.generate_fixed_time_segments(sorted_dict, 5)
    assert len(segments) == 4

    segments.delete("2")
    assert len(segments) == 3
    assert segments[0].segment_name == "0"
    assert segments[1].segment_name == "1"
    assert segments[2].segment_name == "3"


def test_delete_error():
    with pytest.raises(distill.SegmentationError):
        data = testing_utils.setup(
            os.path.join(DATA_DIR, "sample_data.json"), "integer"
        )
        sorted_dict = data[1]

        # Create Segments with fixed time
        segments = distill.generate_fixed_time_segments(sorted_dict, 5)

        segments.delete("random")


def test_str():
    segment = distill.Segment("segment_name", (1, 2), 5, ["uid1", "uid2"])

    # Create Segments with fixed time
    segments = distill.Segments([segment])

    assert (
        str(segments) == "Segments: [\n"
        "Segment: segment_name=segment_name, start=1, end=2, num_logs=5, "
        "generate_field_name=None, generate_matched_values=None, segment_type=None\n"
        "]"
    )