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'use strict';
const stringWidth = require('string-width');
const chalk = require('chalk');
const widestLine = require('widest-line');
const cliBoxes = require('cli-boxes');
const camelCase = require('camelcase');
const ansiAlign = require('ansi-align');
const termSize = require('term-size');
const getObject = detail => {
let obj;
if (typeof detail === 'number') {
obj = {
top: detail,
right: detail * 3,
bottom: detail,
left: detail * 3
};
} else {
obj = Object.assign({
top: 0,
right: 0,
bottom: 0,
left: 0
}, detail);
}
return obj;
};
const getBorderChars = borderStyle => {
const sides = [
'topLeft',
'topRight',
'bottomRight',
'bottomLeft',
'vertical',
'horizontal'
];
let chars;
if (typeof borderStyle === 'string') {
chars = cliBoxes[borderStyle];
if (!chars) {
throw new TypeError(`Invalid border style: ${borderStyle}`);
}
} else {
sides.forEach(key => {
if (!borderStyle[key] || typeof borderStyle[key] !== 'string') {
throw new TypeError(`Invalid border style: ${key}`);
}
});
chars = borderStyle;
}
return chars;
};
const getBackgroundColorName = x => camelCase('bg', x);
module.exports = (text, opts) => {
opts = Object.assign({
padding: 0,
borderStyle: 'single',
dimBorder: false,
align: 'left',
float: 'left'
}, opts);
if (opts.backgroundColor) {
opts.backgroundColor = getBackgroundColorName(opts.backgroundColor);
}
if (opts.borderColor && !chalk[opts.borderColor]) {
throw new Error(`${opts.borderColor} is not a valid borderColor`);
}
if (opts.backgroundColor && !chalk[opts.backgroundColor]) {
throw new Error(`${opts.backgroundColor} is not a valid backgroundColor`);
}
const chars = getBorderChars(opts.borderStyle);
const padding = getObject(opts.padding);
const margin = getObject(opts.margin);
const colorizeBorder = x => {
const ret = opts.borderColor ? chalk[opts.borderColor](x) : x;
return opts.dimBorder ? chalk.dim(ret) : ret;
};
const colorizeContent = x => opts.backgroundColor ? chalk[opts.backgroundColor](x) : x;
text = ansiAlign(text, {align: opts.align});
const NL = '\n';
const PAD = ' ';
let lines = text.split(NL);
if (padding.top > 0) {
lines = Array(padding.top).fill('').concat(lines);
}
if (padding.bottom > 0) {
lines = lines.concat(Array(padding.bottom).fill(''));
}
const contentWidth = widestLine(text) + padding.left + padding.right;
const paddingLeft = PAD.repeat(padding.left);
const columns = termSize().columns;
let marginLeft = PAD.repeat(margin.left);
if (opts.float === 'center') {
const padWidth = (columns - contentWidth) / 2;
marginLeft = PAD.repeat(padWidth);
} else if (opts.float === 'right') {
const padWidth = Math.max(columns - contentWidth - margin.right - 2, 0);
marginLeft = PAD.repeat(padWidth);
}
const horizontal = chars.horizontal.repeat(contentWidth);
const top = colorizeBorder(NL.repeat(margin.top) + marginLeft + chars.topLeft + horizontal + chars.topRight);
const bottom = colorizeBorder(marginLeft + chars.bottomLeft + horizontal + chars.bottomRight + NL.repeat(margin.bottom));
const side = colorizeBorder(chars.vertical);
const middle = lines.map(line => {
const paddingRight = PAD.repeat(contentWidth - stringWidth(line) - padding.left);
return marginLeft + side + colorizeContent(paddingLeft + line + paddingRight) + side;
}).join(NL);
return top + NL + middle + NL + bottom;
};
module.exports._borderStyles = cliBoxes;
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