| 1 |
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| 2 | import * as style from '../style';
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| 3 | import { fsw2coord, coord2fsw } from '../convert';
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| 4 | import { re } from './fsw-re';
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| 5 |
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| 6 | const compose = {
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| 7 | /**
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| 8 | * Function to compose an fsw symbol with optional coordinate and style string
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| 9 | * @function fsw.compose.symbol
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| 10 | * @param {object} fswSymObject - an fsw symbol object
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| 11 | * @param {string} fswSymObject.symbol - an fsw symbol key
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| 12 | * @param {number[]} fswSymObject.coord - top-left coordinate of symbol
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| 13 | * @param {string} fswSymObject.style - a style string for custom appearance
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| 14 | * @returns {string} an fsw symbol string
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| 15 | * @example
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| 16 | * fsw.compose.symbol({
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| 17 | * 'symbol': 'S10000',
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| 18 | * 'coord': [480, 480],
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| 19 | * 'style': '-C'
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| 20 | * })
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| 21 | *
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| 22 | * return 'S10000480x480-C'
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| 23 | */
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| 24 | symbol: (fswSymObject) => {
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| 25 | if (typeof fswSymObject.symbol === 'string') {
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| 26 | const symbol = (fswSymObject.symbol.match(re.symbol) || [''])[0];
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| 27 | if (symbol) {
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| 28 | const x = (fswSymObject.coord && fswSymObject.coord[0] || '').toString();
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| 29 | const y = (fswSymObject.coord && fswSymObject.coord[1] || '').toString();
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| 30 | const coord = ((x + 'x' + y).match(re.coord) || [''])[0] || '';
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| 31 | const styleStr = (typeof fswSymObject.style === 'string') && (fswSymObject.style.match(style.re.full) || [''])[0] || '';
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| 32 | return symbol + coord + styleStr;
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| 33 |
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| 34 | }
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| 35 | }
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| 36 | return undefined;
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| 37 | },
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| 38 | /**
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| 39 | * Function to compose an fsw sign with style string
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| 40 | * @function fsw.compose.sign
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| 41 | * @param {object} fswSymObject - an fsw sign object
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| 42 | * @param {string[]} fswSignObject.sequence - an ordered array of symbols
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| 43 | * @param {string} fswSignObject.box - a choice BLMR: horizontal Box, Left, Middle, and Right lane
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| 44 | * @param {number[]} fswSignObject.max - max bottom-right coordinate of the signbox space
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| 45 | * @param {{symbol:string,coord:number[]}[]} fswSignObject.spatials - array of symbols with top-left coordinate placement
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| 46 | * @param {string} fswSignObject.style - a style string for custom appearance
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| 47 | * @returns {string} an fsw sign string
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| 48 | * @example
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| 49 | * fsw.compose.sign({
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| 50 | * sequence: ['S10011', 'S10019', 'S2e704', 'S2e748'],
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| 51 | * box: 'M',
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| 52 | * max: [525, 535],
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| 53 | * spatials: [
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| 54 | * {
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| 55 | * symbol: 'S2e748',
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| 56 | * coord: [483, 510]
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| 57 | * },
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| 58 | * {
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| 59 | * symbol: 'S10011',
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| 60 | * coord: [501, 466]
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| 61 | * },
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| 62 | * {
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| 63 | * symbol: 'S2e704',
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| 64 | * coord: [510, 500]
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| 65 | * },
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| 66 | * {
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| 67 | * symbol: 'S10019',
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| 68 | * coord: [476, 475]
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| 69 | * }
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| 70 | * ],
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| 71 | * style: '-C'
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| 72 | * })
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| 73 | *
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| 74 | * return 'AS10011S10019S2e704S2e748M525x535S2e748483x510S10011501x466S2e704510x500S10019476x475-C'
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| 75 | */
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| 76 | sign: (fswSignObject) => {
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| 77 | let box = (typeof fswSignObject.box !== 'string') ? 'M' : (fswSignObject.box + 'M').match(re.box)
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| 78 |
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| 79 | const x = (fswSignObject.max && fswSignObject.max[0] || '').toString();
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| 80 | const y = (fswSignObject.max && fswSignObject.max[1] || '').toString();
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| 81 | const max = ((x + 'x' + y).match(re.coord) || [''])[0] || '';
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| 82 |
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| 83 | if (!max) return undefined;
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| 84 |
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| 85 | let prefix = '';
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| 86 | if (fswSignObject.sequence && Array.isArray(fswSignObject.sequence)) {
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| 87 | prefix = fswSignObject.sequence.map(key => (key.match(re.symbol) || [''])[0]).join('')
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| 88 | prefix = prefix ? 'A' + prefix : ''
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| 89 | }
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| 90 |
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| 91 | let signbox = '';
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| 92 | if (fswSignObject.spatials && Array.isArray(fswSignObject.spatials)) {
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| 93 | signbox = fswSignObject.spatials.map(spatial => {
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| 94 | if (typeof spatial.symbol === 'string') {
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| 95 | const symbol = (spatial.symbol.match(re.symbol) || [''])[0];
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| 96 | if (symbol) {
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| 97 | const x = (spatial.coord && spatial.coord[0] || '').toString();
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| 98 | const y = (spatial.coord && spatial.coord[1] || '').toString();
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| 99 | const coord = ((x + 'x' + y).match(re.coord) || [''])[0] || '';
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| 100 | if (coord) {
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| 101 | return symbol + coord;
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| 102 | }
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| 103 | }
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| 104 | }
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| 105 | return '';
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| 106 | }).join('');
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| 107 | }
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| 108 | const styleStr = (typeof fswSignObject.style === 'string') && (fswSignObject.style.match(style.re.full) || [''])[0] || '';
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| 109 |
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| 110 | return prefix + box + max + signbox + styleStr;
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| 111 | }
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| 112 | }
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| 113 |
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| 114 | export { compose }
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