--- /dev/null
+import _ from 'lodash';
+import getBorderCharacters from './getBorderCharacters';
+import validateConfig from './validateConfig';
+import calculateMaximumColumnWidthIndex from './calculateMaximumColumnWidthIndex';
+
+/**
+ * Merges user provided border characters with the default border ("honeywell") characters.
+ *
+ * @param {Object} border
+ * @returns {Object}
+ */
+const makeBorder = (border = {}) => {
+ return Object.assign({}, getBorderCharacters('honeywell'), border);
+};
+
+/**
+ * Creates a configuration for every column using default
+ * values for the missing configuration properties.
+ *
+ * @param {Array[]} rows
+ * @param {Object} columns
+ * @param {Object} columnDefault
+ * @returns {Object}
+ */
+const makeColumns = (rows, columns = {}, columnDefault = {}) => {
+ const maximumColumnWidthIndex = calculateMaximumColumnWidthIndex(rows);
+
+ _.times(rows[0].length, (index) => {
+ if (_.isUndefined(columns[index])) {
+ columns[index] = {};
+ }
+
+ columns[index] = Object.assign({
+ alignment: 'left',
+ paddingLeft: 1,
+ paddingRight: 1,
+ truncate: Infinity,
+ width: maximumColumnWidthIndex[index],
+ wrapWord: false
+ }, columnDefault, columns[index]);
+ });
+
+ return columns;
+};
+
+/**
+ * Makes a new configuration object out of the userConfig object
+ * using default values for the missing configuration properties.
+ *
+ * @param {Array[]} rows
+ * @param {Object} userConfig
+ * @returns {Object}
+ */
+export default (rows, userConfig = {}) => {
+ validateConfig('config.json', userConfig);
+
+ const config = _.cloneDeep(userConfig);
+
+ config.border = makeBorder(config.border);
+ config.columns = makeColumns(rows, config.columns, config.columnDefault);
+
+ if (!config.drawHorizontalLine) {
+ /**
+ * @returns {boolean}
+ */
+ config.drawHorizontalLine = () => {
+ return true;
+ };
+ }
+
+ if (config.singleLine === undefined) {
+ config.singleLine = false;
+ }
+
+ return config;
+};