/*
 * In order to avoid confusion here is a list of terms
 * used throughout this code:
 * - octet: represent a byte or 8bits
 * - septet: represent 7bits
 * - character: a text unit, think one char is one glyph (Warning: this is an oversimplification and not always true)
 * - code point: a character value in a given encoding
 * - code unit: a single "block" used to encode a character
 *              UCS-2 is of fixed length and every character is 2 code units long
 *              GSM-7 is of variable length and require 1 or 2 code unit per character
 */

// Map of Javascript code points to GSM-7
const UnicodeToGsm: Record<string, Array<number>> = {
  0x000a: [0x0a],
  0x000c: [0x1b, 0x0a],
  0x000d: [0x0d],
  0x0020: [0x20],
  0x0021: [0x21],
  0x0022: [0x22],
  0x0023: [0x23],
  0x0024: [0x02],
  0x0025: [0x25],
  0x0026: [0x26],
  0x0027: [0x27],
  0x0028: [0x28],
  0x0029: [0x29],
  0x002a: [0x2a],
  0x002b: [0x2b],
  0x002c: [0x2c],
  0x002d: [0x2d],
  0x002e: [0x2e],
  0x002f: [0x2f],
  0x0030: [0x30],
  0x0031: [0x31],
  0x0032: [0x32],
  0x0033: [0x33],
  0x0034: [0x34],
  0x0035: [0x35],
  0x0036: [0x36],
  0x0037: [0x37],
  0x0038: [0x38],
  0x0039: [0x39],
  0x003a: [0x3a],
  0x003b: [0x3b],
  0x003c: [0x3c],
  0x003d: [0x3d],
  0x003e: [0x3e],
  0x003f: [0x3f],
  0x0040: [0x00],
  0x0041: [0x41],
  0x0042: [0x42],
  0x0043: [0x43],
  0x0044: [0x44],
  0x0045: [0x45],
  0x0046: [0x46],
  0x0047: [0x47],
  0x0048: [0x48],
  0x0049: [0x49],
  0x004a: [0x4a],
  0x004b: [0x4b],
  0x004c: [0x4c],
  0x004d: [0x4d],
  0x004e: [0x4e],
  0x004f: [0x4f],
  0x0050: [0x50],
  0x0051: [0x51],
  0x0052: [0x52],
  0x0053: [0x53],
  0x0054: [0x54],
  0x0055: [0x55],
  0x0056: [0x56],
  0x0057: [0x57],
  0x0058: [0x58],
  0x0059: [0x59],
  0x005a: [0x5a],
  0x005b: [0x1b, 0x3c],
  0x005c: [0x1b, 0x2f],
  0x005d: [0x1b, 0x3e],
  0x005e: [0x1b, 0x14],
  0x005f: [0x11],
  0x0061: [0x61],
  0x0062: [0x62],
  0x0063: [0x63],
  0x0064: [0x64],
  0x0065: [0x65],
  0x0066: [0x66],
  0x0067: [0x67],
  0x0068: [0x68],
  0x0069: [0x69],
  0x006a: [0x6a],
  0x006b: [0x6b],
  0x006c: [0x6c],
  0x006d: [0x6d],
  0x006e: [0x6e],
  0x006f: [0x6f],
  0x0070: [0x70],
  0x0071: [0x71],
  0x0072: [0x72],
  0x0073: [0x73],
  0x0074: [0x74],
  0x0075: [0x75],
  0x0076: [0x76],
  0x0077: [0x77],
  0x0078: [0x78],
  0x0079: [0x79],
  0x007a: [0x7a],
  0x007b: [0x1b, 0x28],
  0x007c: [0x1b, 0x40],
  0x007d: [0x1b, 0x29],
  0x007e: [0x1b, 0x3d],
  0x00a1: [0x40],
  0x00a3: [0x01],
  0x00a4: [0x24],
  0x00a5: [0x03],
  0x00a7: [0x5f],
  0x00bf: [0x60],
  0x00c4: [0x5b],
  0x00c5: [0x0e],
  0x00c6: [0x1c],
  0x00c9: [0x1f],
  0x00d1: [0x5d],
  0x00d6: [0x5c],
  0x00d8: [0x0b],
  0x00dc: [0x5e],
  0x00df: [0x1e],
  0x00e0: [0x7f],
  0x00e4: [0x7b],
  0x00e5: [0x0f],
  0x00e6: [0x1d],
  0x00c7: [0x09],
  0x00e8: [0x04],
  0x00e9: [0x05],
  0x00ec: [0x07],
  0x00f1: [0x7d],
  0x00f2: [0x08],
  0x00f6: [0x7c],
  0x00f8: [0x0c],
  0x00f9: [0x06],
  0x00fc: [0x7e],
  0x0393: [0x13],
  0x0394: [0x10],
  0x0398: [0x19],
  0x039b: [0x14],
  0x039e: [0x1a],
  0x03a0: [0x16],
  0x03a3: [0x18],
  0x03a6: [0x12],
  0x03a8: [0x17],
  0x03a9: [0x15],
  0x20ac: [0x1b, 0x65],
};

export default UnicodeToGsm;