import {
  compareVersions,
  formatString,
  getCommandLineArgs,
  getGuid,
  throttle,
  calculatePercentage,
} from '../src/common/utils';

describe('utils', () => {
  describe('`compareVersions`', () => {
    it('should return -1 when v1 and v2 are invalid values', () => {
      expect(compareVersions('1.0-1-1-', '2.1-1-1-')).toBe(-1);
    });

    it('should return -1 when v1 < v2', () => {
      expect(compareVersions('v1.0', 'v2.1')).toBe(-1);
    });

    it('should return 1 when v1 > v2', () => {
      expect(compareVersions('v1.8', 'v1.1')).toBe(1);
    });

    it('should return 0 when v1 is equal to v2', () => {
      expect(compareVersions('v1.0', 'v1.0')).toBe(0);
    });

    describe('`compareVersions` using dash', () => {
      it('should return 0 when v1 is equal to v2', () => {
        expect(compareVersions('v1.0.8-beta1', 'v1.0.8-beta1')).toBe(0);
      });

      it('should return 1 when v1 is `string` and v2 is `number`', () => {
        expect(compareVersions('v1.0.8-beta', 'v1.0.8-1')).toBe(1);
      });

      it('should return -1 when v1 is `number` and v2 is `string`', () => {
        expect(compareVersions('v1.0.8-9', 'v1.0.8-beta')).toBe(-1);
      });

      it('should return -1 when v1 < v2', () => {
        expect(compareVersions('v1.0.0-beta1', 'v1.0.0-beta2')).toBe(-1);
      });

      it('should return 1 when v1 > v2', () => {
        expect(compareVersions('v1.0.0-beta5', 'v1.0.0-beta1')).toBe(1);
      });

      it('should return -1 when v1 is dashed and v2 is not', () => {
        expect(compareVersions('v1.0.0-beta5', 'v1.0.0')).toBe(-1);
      });
    });
  });
  describe('`getGuid`', () => {
    it('should call `getGuid` correctly', () => {
      const valueFirst = getGuid();
      const valueSecond = getGuid();
      expect(valueFirst).not.toEqual(valueSecond);
    });

    it('should return 4 dashes when `getGuid` is called', () => {
      const dashCountGui = getGuid().split('-').length - 1;
      expect(dashCountGui).toBe(4);
    });

    it('should return 36 length when `getGuid` is called', () => {
      const lengthGui = getGuid().length;
      expect(lengthGui).toBe(36);
    });
  });

  describe('`getCommandLineArgs`', () => {
    const argName = '--url=';
    it('should call `getCommandLineArgs` correctly', () => {
      const myCustomArgs = process.argv;
      myCustomArgs.push(`--url='https://corporate.symphony.com'`);
      const expectedValue = `--url='https://corporate.symphony.com'`;
      expect(getCommandLineArgs(myCustomArgs, argName, false)).toBe(
        expectedValue,
      );
    });

    it('should fail when the argv is invalid', () => {
      const fakeValue: any = 'null';
      const expectedValue = `get-command-line-args: TypeError invalid func arg, must be an array: ${fakeValue}`;
      expect(() => {
        getCommandLineArgs(fakeValue as string[], argName, false);
      }).toThrow(expectedValue);
    });
  });

  describe('`formatString', () => {
    const str = 'this will log {time}';
    const strReplaced = 'this will log time';
    const data = { time: '1234' };
    it('should return `str` when data is empty', () => {
      expect(formatString(str)).toEqual(str);
    });

    it('should replace key to dynamics values when `formatString` is used', () => {
      const expectedValue = 'this will log 1234';
      expect(formatString(str, data)).toBe(expectedValue);
    });

    it('should replace multiple keys to dynamics values when `formatString` is used', () => {
      const dataTest = { multiple: true, placed: 'correct' };
      expect(
        formatString('The string with {multiple} values {placed}', dataTest),
      ).toBe('The string with true values correct');
    });

    it('should return `str` when `data` not match', () => {
      const dataTest = { test: 123 };
      expect(formatString(str, dataTest)).toBe(strReplaced);
    });

    it('should return `str` when `data` is undefined', () => {
      const dataTest = { multiple: 'multiple', invalid: undefined };
      expect(
        formatString('The string with {multiple} values {invalid}', dataTest),
      ).toBe('The string with multiple values invalid');
    });
  });

  describe('`throttle`', () => {
    let origNow;
    let now;
    beforeEach(() => {
      origNow = Date.now;
      // mock date func
      Date.now = () => {
        return now;
      };
      now = 10000;
    });

    afterEach(() => {
      // restore original
      Date.now = origNow;
    });

    it('should fail when wait is invalid', () => {
      const functionMock = jest.fn();
      const invalidTime = -1;
      const expectedValue = `throttle: invalid throttleTime arg, must be a number: ${invalidTime}`;
      expect(() => {
        throttle(functionMock, invalidTime);
      }).toThrow(expectedValue);
    });

    it('should call `throttle` correctly', () => {
      jest.useFakeTimers();
      const validTime = 1000;
      const functionMock = jest.fn();
      const tempFn = throttle(functionMock, validTime);
      for (let i = 0; i < 3; i++) {
        tempFn();
      }
      now += 1000;
      jest.runTimersToTime(1000);
      tempFn();
      expect(functionMock).toBeCalledTimes(2);
    });
  });

  describe('calculatePercentage', () => {
    it('should calculate the percentage correctly', () => {
      expect(calculatePercentage(1440, 90)).toBe(1296);
    });

    it('should calculate the percentage correctly for 50', () => {
      expect(calculatePercentage(500, 50)).toBe(250);
    });
  });
});