import fs from 'fs';

import {
  getTimeObj,
  getTimeStr,
  clamp,
  parseViscolors,
  parseIni
} from './utils';

const fixture = (filename) => (
    fs.readFileSync(`./js/__tests__/fixtures/${filename}`).toString()
);

describe('getTimeObj', () => {
  it('expresses seconds as an object', () => {
    const actual = getTimeObj(1234);
    const expected = {
      minutesFirstDigit: 2,
      minutesSecondDigit: 0,
      secondsFirstDigit: 3,
      secondsSecondDigit: 4
    };
    expect(actual).toEqual(expected);
  });
});

describe('getTimeStr', () => {
  it('expresses seconds as string', () => {
    const actual = getTimeStr(1234);
    const expected = '20:34';
    expect(actual).toEqual(expected);
  });
  it('pads with zeros', () => {
    const actual = getTimeStr(5);
    const expected = '00:05';
    expect(actual).toEqual(expected);
  });
  it('truncates extra minutes', () => {
    const actual = getTimeStr(540000);
    const expected = '9000:00';
    expect(actual).toEqual(expected);
  });
});

describe('clamp', () => {
  it('respects the max value', () => {
    const actual = clamp(101, 0, 100);
    const expected = 100;
    expect(actual).toEqual(expected);
  });
  it('respects the min value', () => {
    const actual = clamp(0, 1, 100);
    const expected = 1;
    expect(actual).toEqual(expected);
  });
  it('respects the given value if in range', () => {
    const actual = clamp(50, 0, 100);
    const expected = 50;
    expect(actual).toEqual(expected);
  });
});

describe('parseViscolors', () => {
  it('can parse the default viscolors file', () => {
    const viscolors = fixture('VISCOLOR.TXT');
    const actual = parseViscolors(viscolors);
    const expected = [
      'rgb(0,0,0)',
      'rgb(24,33,41)',
      'rgb(239,49,16)',
      'rgb(206,41,16)',
      'rgb(214,90,0)',
      'rgb(214,102,0)',
      'rgb(214,115,0)',
      'rgb(198,123,8)',
      'rgb(222,165,24)',
      'rgb(214,181,33)',
      'rgb(189,222,41)',
      'rgb(148,222,33)',
      'rgb(41,206,16)',
      'rgb(50,190,16)',
      'rgb(57,181,16)',
      'rgb(49,156,8)',
      'rgb(41,148,0)',
      'rgb(24,132,8)',
      'rgb(255,255,255)',
      'rgb(214,214,222)',
      'rgb(181,189,189)',
      'rgb(160,170,175)',
      'rgb(148,156,165)',
      'rgb(150,150,150)'
    ];
    expect(actual).toEqual(expected);
  });
});

describe('parseIni', () => {
  it('can parse the default pledit.txt file', () => {
    const pledit = fixture('PLEDIT.TXT');
    const actual = parseIni(pledit);
    const expected = {
      Normal: '#00FF00',
      Current: '#FFFFFF',
      NormalBG: '#000000',
      SelectedBG: '#0000FF',
      Font: 'Arial'
    };
    expect(actual).toEqual(expected);
  });

  it("can parse TopazAmp's pledit.txt file", () => {
    const pledit = fixture('PLEDIT_TOPAZ.TXT');
    const actual = parseIni(pledit);
    const expected = {
      Normal: '#319593',
      Current: '#89D8D1',
      NormalBG: '#000000',
      SelectedBG: '#2B4242',
      Font: 'Arial',
      mbBG: '#000000',
      mbFG: '#89D8D1'
    };
    expect(actual).toEqual(expected);
  });
});