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node_modules/table/dist/makeConfig.js.flow

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+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;
+};