84 lines
2.1 KiB
Plaintext
84 lines
2.1 KiB
Plaintext
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import _ from 'lodash';
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import getBorderCharacters from './getBorderCharacters';
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import validateConfig from './validateConfig';
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/**
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* Merges user provided border characters with the default border ("honeywell") characters.
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*
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* @param {Object} border
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* @returns {Object}
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*/
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const makeBorder = (border = {}) => {
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return Object.assign({}, getBorderCharacters('honeywell'), border);
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};
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/**
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* Creates a configuration for every column using default
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* values for the missing configuration properties.
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*
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* @param {number} columnCount
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* @param {Object} columns
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* @param {Object} columnDefault
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* @returns {Object}
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*/
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const makeColumns = (columnCount, columns = {}, columnDefault = {}) => {
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_.times(columnCount, (index) => {
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if (_.isUndefined(columns[index])) {
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columns[index] = {};
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}
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columns[index] = Object.assign({
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alignment: 'left',
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paddingLeft: 1,
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paddingRight: 1,
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truncate: Infinity,
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wrapWord: false
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}, columnDefault, columns[index]);
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});
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return columns;
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};
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/**
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* @typedef {Object} columnConfig
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* @property {string} alignment
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* @property {number} width
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* @property {number} truncate
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* @property {number} paddingLeft
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* @property {number} paddingRight
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*/
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/**
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* @typedef {Object} streamConfig
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* @property {columnConfig} columnDefault
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* @property {Object} border
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* @property {columnConfig[]}
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* @property {number} columnCount Number of columns in the table (required).
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*/
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/**
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* Makes a new configuration object out of the userConfig object
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* using default values for the missing configuration properties.
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*
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* @param {streamConfig} userConfig
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* @returns {Object}
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*/
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export default (userConfig = {}) => {
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validateConfig('streamConfig.json', userConfig);
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const config = _.cloneDeep(userConfig);
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if (!config.columnDefault || !config.columnDefault.width) {
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throw new Error('Must provide config.columnDefault.width when creating a stream.');
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}
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if (!config.columnCount) {
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throw new Error('Must provide config.columnCount.');
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}
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config.border = makeBorder(config.border);
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config.columns = makeColumns(config.columnCount, config.columns, config.columnDefault);
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return config;
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};
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