Juz>Memorized>Chapter>Verses Mapper // Regarding handling Mapped process, from memorization[{chapter[]}] to juz[memorization[chapter{verses[]}]

chapterToJuzTransformer.js

let neededData = {
ajza: [
        1,
        149,
        260,
        386,
        517,
        641,
        751,
        900,
        1042,
        1201,
        1328,
        1479,
        1649,
        1803,
        2030,
        2215,
        2484,
        2674,
        2876,
        3215,
        3386,
        3564,
        3733,
        4090,
        4265,
        4511,
        4706,
        5105,
        5242,
        5673,
        6236,
      ],
      juzMapping: [
        {
          id: 1,
          juz_number: 1,
          verse_mapping: {
            '1': '1-7',
            '2': '1-141',
          },
        },
        {
          id: 2,
          juz_number: 2,
          verse_mapping: {
            '2': '142-252',
          },
        },
        {
          id: 3,
          juz_number: 3,
          verse_mapping: {
            '2': '253-286',
            '3': '1-92',
          },
        },
        {
          id: 4,
          juz_number: 4,
          verse_mapping: {
            '3': '93-200',
            '4': '1-23',
          },
        },
        {
          id: 5,
          juz_number: 5,
          verse_mapping: {
            '4': '24-147',
          },
        },
        {
          id: 6,
          juz_number: 6,
          verse_mapping: {
            '4': '148-176',
            '5': '1-81',
          },
        },
        {
          id: 7,
          juz_number: 7,
          verse_mapping: {
            '5': '82-120',
            '6': '1-110',
          },
        },
        {
          id: 8,
          juz_number: 8,
          verse_mapping: {
            '6': '111-165',
            '7': '1-87',
          },
        },
        {
          id: 9,
          juz_number: 9,
          verse_mapping: {
            '7': '88-206',
            '8': '1-40',
          },
        },
        {
          id: 10,
          juz_number: 10,
          verse_mapping: {
            '8': '41-75',
            '9': '1-92',
          },
        },
        {
          id: 11,
          juz_number: 11,
          verse_mapping: {
            '9': '93-129',
            '10': '1-109',
            '11': '1-5',
          },
        },
        {
          id: 12,
          juz_number: 12,
          verse_mapping: {
            '11': '6-123',
            '12': '1-52',
          },
        },
        {
          id: 13,
          juz_number: 13,
          verse_mapping: {
            '12': '53-111',
            '13': '1-43',
            '14': '1-52',
          },
        },
        {
          id: 14,
          juz_number: 14,
          verse_mapping: {
            '15': '1-99',
            '16': '1-128',
          },
        },
        {
          id: 15,
          juz_number: 15,
          verse_mapping: {
            '17': '1-111',
            '18': '1-74',
          },
        },
        {
          id: 16,
          juz_number: 16,
          verse_mapping: {
            '18': '75-110',
            '19': '1-98',
            '20': '1-135',
          },
        },
        {
          id: 17,
          juz_number: 17,
          verse_mapping: {
            '21': '1-112',
            '22': '1-78',
          },
        },
        {
          id: 18,
          juz_number: 18,
          verse_mapping: {
            '23': '1-118',
            '24': '1-64',
            '25': '1-20',
          },
        },
        {
          id: 19,
          juz_number: 19,
          verse_mapping: {
            '25': '21-77',
            '26': '1-227',
            '27': '1-55',
          },
        },
        {
          id: 20,
          juz_number: 20,
          verse_mapping: {
            '27': '56-93',
            '28': '1-88',
            '29': '1-45',
          },
        },
        {
          id: 21,
          juz_number: 21,
          verse_mapping: {
            '29': '46-69',
            '30': '1-60',
            '31': '1-34',
            '32': '1-30',
            '33': '1-30',
          },
        },
        {
          id: 22,
          juz_number: 22,
          verse_mapping: {
            '33': '31-73',
            '34': '1-54',
            '35': '1-45',
            '36': '1-27',
          },
        },
        {
          id: 24,
          juz_number: 24,
          verse_mapping: {
            '39': '32-75',
            '40': '1-85',
            '41': '1-46',
          },
        },
        {
          id: 23,
          juz_number: 23,
          verse_mapping: {
            '36': '28-83',
            '37': '1-182',
            '38': '1-88',
            '39': '1-31',
          },
        },
        {
          id: 25,
          juz_number: 25,
          verse_mapping: {
            '41': '47-54',
            '42': '1-53',
            '43': '1-89',
            '44': '1-59',
            '45': '1-37',
          },
        },
        {
          id: 26,
          juz_number: 26,
          verse_mapping: {
            '46': '1-35',
            '47': '1-38',
            '48': '1-29',
            '49': '1-18',
            '50': '1-45',
            '51': '1-30',
          },
        },
        {
          id: 27,
          juz_number: 27,
          verse_mapping: {
            '51': '31-60',
            '52': '1-49',
            '53': '1-62',
            '54': '1-55',
            '55': '1-78',
            '56': '1-96',
            '57': '1-29',
          },
        },
        {
          id: 28,
          juz_number: 28,
          verse_mapping: {
            '58': '1-22',
            '59': '1-24',
            '60': '1-13',
            '61': '1-14',
            '62': '1-11',
            '63': '1-11',
            '64': '1-18',
            '65': '1-12',
            '66': '1-12',
          },
        },
        {
          id: 29,
          juz_number: 29,
          verse_mapping: {
            '67': '1-30',
            '68': '1-52',
            '69': '1-52',
            '70': '1-44',
            '71': '1-28',
            '72': '1-28',
            '73': '1-20',
            '74': '1-56',
            '75': '1-40',
            '76': '1-31',
            '77': '1-50',
          },
        },
        {
          id: 30,
          juz_number: 30,
          verse_mapping: {
            '78': '1-40',
            '79': '1-46',
            '80': '1-42',
            '81': '1-29',
            '82': '1-19',
            '83': '1-36',
            '84': '1-25',
            '85': '1-22',
            '86': '1-17',
            '87': '1-19',
            '88': '1-26',
            '89': '1-30',
            '90': '1-20',
            '91': '1-15',
            '92': '1-21',
            '93': '1-11',
            '94': '1-8',
            '95': '1-8',
            '96': '1-19',
            '97': '1-5',
            '98': '1-8',
            '99': '1-8',
            '100': '1-11',
            '101': '1-11',
            '102': '1-8',
            '103': '1-3',
            '104': '1-9',
            '105': '1-5',
            '106': '1-4',
            '107': '1-7',
            '108': '1-3',
            '109': '1-6',
            '110': '1-3',
            '111': '1-5',
            '112': '1-4',
            '113': '1-5',
            '114': '1-6',
          },
        },
      ],
      juzByVerseTotalNumber: [
        { juz: 1, chapter_in_juz: ['1', '2'] },
        { juz: 2, chapter_in_juz: ['2'] },
        { juz: 3, chapter_in_juz: ['2', '3'] },
        { juz: 4, chapter_in_juz: ['3', '4'] },
        { juz: 5, chapter_in_juz: ['4'] },
        { juz: 6, chapter_in_juz: ['4', '5'] },
        { juz: 7, chapter_in_juz: ['5', '6'] },
        { juz: 8, chapter_in_juz: ['6', '7'] },
        { juz: 9, chapter_in_juz: ['7', '8'] },
        { juz: 10, chapter_in_juz: ['8', '9'] },
        { juz: 11, chapter_in_juz: ['9', '10', '11'] },
        { juz: 12, chapter_in_juz: ['11', '12'] },
        { juz: 13, chapter_in_juz: ['12', '13', '14'] },
        { juz: 14, chapter_in_juz: ['15', '16'] },
        { juz: 15, chapter_in_juz: ['17', '18'] },
        { juz: 16, chapter_in_juz: ['18', '19', '20'] },
        { juz: 17, chapter_in_juz: ['21', '22'] },
        { juz: 18, chapter_in_juz: ['23', '24', '25'] },
        { juz: 19, chapter_in_juz: ['25', '26', '27'] },
        { juz: 20, chapter_in_juz: ['27', '28', '29'] },
        { juz: 21, chapter_in_juz: ['29', '30', '31', '32', '33'] },
        { juz: 22, chapter_in_juz: ['33', '34', '35', '36'] },
        { juz: 23, chapter_in_juz: ['39', '40', '41'] },
        { juz: 24, chapter_in_juz: ['36', '37', '38', '39'] },
        { juz: 25, chapter_in_juz: ['41', '42', '43', '44', '45'] },
        { juz: 26, chapter_in_juz: ['46', '47', '48', '49', '50', '51'] },
        { juz: 27, chapter_in_juz: ['51', '52', '53', '54', '55', '56', '57'] },
        { juz: 28, chapter_in_juz: ['58', '59', '60', '61', '62', '63', '64', '65', '66'] },
        { juz: 29, chapter_in_juz: ['67', '68', '69', '70', '71', '72', '73', '74', '75', '76', '77'] },
        {
          juz: 30,
          chapter_in_juz: [
            '78',
            '79',
            '80',
            '81',
            '82',
            '83',
            '84',
            '85',
            '86',
            '87',
            '88',
            '89',
            '90',
            '91',
            '92',
            '93',
            '94',
            '95',
            '96',
            '97',
            '98',
            '99',
            '100',
            '101',
            '102',
            '103',
            '104',
            '105',
            '106',
            '107',
            '108',
            '109',
            '110',
            '111',
            '112',
            '113',
            '114',
          ],
        },
      ],
}

juzMemory() {
      // @saveroo Dirty Approach
      // Regarding handling Mapped process, from memorization[{chapter[]}] to juz[memorization[chapter{verses[]}]
      // Problem:
      // -memorization[chapter{}] and juz data are separated,
      // Expectation:
      // -Wanted to display and order by the juz, but not all the memorized verse,
      // -if condition of memorized verses is unmet the criteria of juz, it wont be displayed.
      // as example we have memorization at Chapter 1:1-7, chapter 2:1-2, chapter 55:10
      // [Juz 1] << DISPLAYED
      //   [Memorization]
      //     [Chapter 1] 1:1-7
      //     [Chapter 2] 1:1-141
      // [Juz 2] << NOT DISPLAYED
      //   [Memorization]
      //     [Chapter]
      // [Juz 27] << DISPLAYED
      //   [Memorization]
      //     [Chapter 55] 10 (Our Memorized verses equal inRange between the constraint to be considered as juz 27)
      // @2019

      // You dont need Lodash
      const inRange = (num, a, b = 0) => Math.min(a, b) <= num && num < Math.max(a, b);

      // To reduce typing overhead, i put it thereeee, immutable const
      const jz = this.juzByVerseTotalNumber;
      const jm = this.juzMapping;
      const mem = this.memorizations;
      const memmap = mem.map(i => i.chapter);

      // TODO: should have better approach
      // This is the main array to contains the transformed 30juz.
      let arr = [];

      // So i dont forget how to iterate thru it...
      // 1. first iterate the juz Array from 1 to 30
      for (let i = 0; i < jz.length; i++) {
        // Initialize empty array to hold morphed Juz array from 1 to 30
        // This array after iteration will reset. to contain new item in 2nd iteration.
        let arrChap = [];

        // The object to be pushed thru
        let objUpper = {
          juz: jz[i].juz,
          juz_start_at_verse: this.ajza[i + 1],
        };

        // 2. Iterate thru the chapter, in 30 iteration there is 7 iteration, to push, if chapter is included in the current juz
        for (let j = 0; j < memmap.length; j++) {
          if (jm[i].verse_mapping[`${memmap[j].chapter_number}`]) {
            let jmap = jm[i].verse_mapping[`${memmap[j].chapter_number}`];
            let splt = jmap.split('-');
            if (inRange(mem[j].verses.length, splt[0], splt[1] + 1)) arrChap.push(mem[j]);
          }

          // ## Uncomment if chapter want to be included in juz, regardless condition of memorized verse is unmet
          // If the current mapped chapter in memorization included in 30 JUZ iteration,
          // then push to array which reseted in every new iteration
          // if (jz[i].chapter_in_juz.includes(`${memmap[j].chapter_number}`)) {
          //
          //   // push memorization which contain a chapter, since chapter has one-to-one relationship.
          //   // arrChap.push(mem[j]);
          // }
        }

        // After done the 2nd iteration, then added props to Object which contain juz number and chapter array,
        // Then push to main array
        objUpper.chapter = arrChap;
        arr.push(objUpper);
      }

      // Returned filter to remove empty array
      return arr.filter(i => i.chapter.length !== 0);
    },