/*
 * Copyright (C) 2023-2024  Yomitan Authors
 * Copyright (C) 2020-2022  Yomichan Authors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

import {describe, expect, test} from 'vitest';
import {DynamicProperty} from '../ext/js/core/dynamic-property.js';
import {deepEqual} from '../ext/js/core/utilities.js';

describe('DynamicProperty', () => {
    /** @type {import('test/core').DynamicPropertyTestData} */
    const data = [
        {
            initialValue: 0,
            operations: [
                {
                    operation: null,
                    args: [0],
                    expectedDefaultValue: 0,
                    expectedValue: 0,
                    expectedOverrideCount: 0,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'set.defaultValue',
                    args: [1],
                    expectedDefaultValue: 1,
                    expectedValue: 1,
                    expectedOverrideCount: 0,
                    expectedEventOccurred: true,
                },
                {
                    operation: 'set.defaultValue',
                    args: [1],
                    expectedDefaultValue: 1,
                    expectedValue: 1,
                    expectedOverrideCount: 0,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'set.defaultValue',
                    args: [0],
                    expectedDefaultValue: 0,
                    expectedValue: 0,
                    expectedOverrideCount: 0,
                    expectedEventOccurred: true,
                },
                {
                    operation: 'setOverride',
                    args: [8],
                    expectedDefaultValue: 0,
                    expectedValue: 8,
                    expectedOverrideCount: 1,
                    expectedEventOccurred: true,
                },
                {
                    operation: 'setOverride',
                    args: [16],
                    expectedDefaultValue: 0,
                    expectedValue: 8,
                    expectedOverrideCount: 2,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'setOverride',
                    args: [32, 1],
                    expectedDefaultValue: 0,
                    expectedValue: 32,
                    expectedOverrideCount: 3,
                    expectedEventOccurred: true,
                },
                {
                    operation: 'setOverride',
                    args: [64, -1],
                    expectedDefaultValue: 0,
                    expectedValue: 32,
                    expectedOverrideCount: 4,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'clearOverride',
                    args: [-4],
                    expectedDefaultValue: 0,
                    expectedValue: 32,
                    expectedOverrideCount: 3,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'clearOverride',
                    args: [-3],
                    expectedDefaultValue: 0,
                    expectedValue: 32,
                    expectedOverrideCount: 2,
                    expectedEventOccurred: false,
                },
                {
                    operation: 'clearOverride',
                    args: [-2],
                    expectedDefaultValue: 0,
                    expectedValue: 64,
                    expectedOverrideCount: 1,
                    expectedEventOccurred: true,
                },
                {
                    operation: 'clearOverride',
                    args: [-1],
                    expectedDefaultValue: 0,
                    expectedValue: 0,
                    expectedOverrideCount: 0,
                    expectedEventOccurred: true,
                },
            ],
        },
    ];

    describe.each(data)('Test DynamicProperty($initialValue)', ({initialValue, operations}) => {
        test('works as expected', () => {
            const property = new DynamicProperty(initialValue);
            const overrideTokens = [];
            let eventOccurred = false;
            const onChange = () => { eventOccurred = true; };
            property.on('change', onChange);
            for (const {operation, args, expectedDefaultValue, expectedValue, expectedOverrideCount, expectedEventOccurred} of operations) {
                eventOccurred = false;
                switch (operation) {
                    case 'set.defaultValue': property.defaultValue = args[0]; break;
                    case 'setOverride': overrideTokens.push(property.setOverride(...args)); break;
                    case 'clearOverride': property.clearOverride(overrideTokens[overrideTokens.length + args[0]]); break;
                }
                expect(eventOccurred).toStrictEqual(expectedEventOccurred);
                expect(property.defaultValue).toStrictEqual(expectedDefaultValue);
                expect(property.value).toStrictEqual(expectedValue);
                expect(property.overrideCount).toStrictEqual(expectedOverrideCount);
            }
            property.off('change', onChange);
        });
    });
});

describe('deepEqual', () => {
    /** @type {import('test/core').DeepEqualTestData} */
    const simpleTestsData = [
        {
            value1: 0,
            value2: 0,
            expected: true,
        },
        {
            value1: null,
            value2: null,
            expected: true,
        },
        {
            value1: 'test',
            value2: 'test',
            expected: true,
        },
        {
            value1: true,
            value2: true,
            expected: true,
        },
        {
            value1: 0,
            value2: 1,
            expected: false,
        },
        {
            value1: null,
            value2: false,
            expected: false,
        },
        {
            value1: 'test1',
            value2: 'test2',
            expected: false,
        },
        {
            value1: true,
            value2: false,
            expected: false,
        },
    ];
    /** @type {import('test/core').DeepEqualTestData} */
    const simpleObjectTestsData = [
        {
            value1: {},
            value2: {},
            expected: true,
        },
        {
            value1: {},
            value2: [],
            expected: false,
        },
        {
            value1: [],
            value2: [],
            expected: true,
        },
        {
            value1: {},
            value2: null,
            expected: false,
        },
    ];
    /** @type {import('test/core').DeepEqualTestData} */
    const complexObjectTestsData = [
        {
            value1: [1],
            value2: [],
            expected: false,
        },
        {
            value1: [1],
            value2: [1],
            expected: true,
        },
        {
            value1: [1],
            value2: [2],
            expected: false,
        },

        {
            value1: {},
            value2: {test: 1},
            expected: false,
        },
        {
            value1: {test: 1},
            value2: {test: 1},
            expected: true,
        },
        {
            value1: {test: 1},
            value2: {test: {test2: false}},
            expected: false,
        },
        {
            value1: {test: {test2: true}},
            value2: {test: {test2: false}},
            expected: false,
        },
        {
            value1: {test: {test2: [true]}},
            value2: {test: {test2: [true]}},
            expected: true,
        },
    ];
    /** @type {import('test/core').DeepEqualTestData} */
    const recursiveTestsData = [
        {
            value1: (() => {
                const x = {};
                x.x = x;
                return x;
            })(),
            value2: (() => {
                const x = {};
                x.x = x;
                return x;
            })(),
            expected: false,
        },
    ];
    describe('simple tests', () => {
        test.each(simpleTestsData)('deepEqual($value1, $value2) -> $expected', ({value1, value2, expected}) => {
            const actual1 = deepEqual(value1, value2);
            expect(actual1).toStrictEqual(expected);

            const actual2 = deepEqual(value2, value1);
            expect(actual2).toStrictEqual(expected);
        });
    });

    describe('simple object tests', () => {
        test.each(simpleObjectTestsData)('deepEqual($value1, $value2) -> $expected', ({value1, value2, expected}) => {
            const actual1 = deepEqual(value1, value2);
            expect(actual1).toStrictEqual(expected);

            const actual2 = deepEqual(value2, value1);
            expect(actual2).toStrictEqual(expected);
        });
    });

    describe('complex object tests', () => {
        test.each(complexObjectTestsData)('deepEqual($value1, $value2) -> $expected', ({value1, value2, expected}) => {
            const actual1 = deepEqual(value1, value2);
            expect(actual1).toStrictEqual(expected);

            const actual2 = deepEqual(value2, value1);
            expect(actual2).toStrictEqual(expected);
        });
    });

    describe('recursive tests', () => {
        test.each(recursiveTestsData)('deepEqual($value1, $value2) -> $expected', ({value1, value2, expected}) => {
            const actual1 = deepEqual(value1, value2);
            expect(actual1).toStrictEqual(expected);

            const actual2 = deepEqual(value2, value1);
            expect(actual2).toStrictEqual(expected);
        });
    });
});