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import process from 'node:process';
import stringWidth from 'string-width';
import chalk from 'chalk';
import widestLine from 'widest-line';
import cliBoxes from 'cli-boxes';
import camelCase from 'camelcase';
import ansiAlign from 'ansi-align';
import wrapAnsi from 'wrap-ansi';
const NEWLINE = '\n';
const PAD = ' ';
const BORDERS_WIDTH = 2;
const terminalColumns = () => {
const {env, stdout, stderr} = process;
if (stdout?.columns) {
return stdout.columns;
}
if (stderr?.columns) {
return stderr.columns;
}
if (env.COLUMNS) {
return Number.parseInt(env.COLUMNS, 10);
}
return 80;
};
const getObject = detail => typeof detail === 'number' ? {
top: detail,
right: detail * 3,
bottom: detail,
left: detail * 3,
} : {
top: 0,
right: 0,
bottom: 0,
left: 0,
...detail,
};
const getBorderChars = borderStyle => {
const sides = [
'topLeft',
'topRight',
'bottomRight',
'bottomLeft',
'left',
'right',
'top',
'bottom',
];
let characters;
if (typeof borderStyle === 'string') {
characters = cliBoxes[borderStyle];
if (!characters) {
throw new TypeError(`Invalid border style: ${borderStyle}`);
}
} else {
// Ensure retro-compatibility
if (typeof borderStyle?.vertical === 'string') {
borderStyle.left = borderStyle.vertical;
borderStyle.right = borderStyle.vertical;
}
// Ensure retro-compatibility
if (typeof borderStyle?.horizontal === 'string') {
borderStyle.top = borderStyle.horizontal;
borderStyle.bottom = borderStyle.horizontal;
}
for (const side of sides) {
if (!borderStyle[side] || typeof borderStyle[side] !== 'string') {
throw new TypeError(`Invalid border style: ${side}`);
}
}
characters = borderStyle;
}
return characters;
};
const makeTitle = (text, horizontal, alignement) => {
let title = '';
const textWidth = stringWidth(text);
switch (alignement) {
case 'left':
title = text + horizontal.slice(textWidth);
break;
case 'right':
title = horizontal.slice(textWidth) + text;
break;
default:
horizontal = horizontal.slice(textWidth);
if (horizontal.length % 2 === 1) { // This is needed in case the length is odd
horizontal = horizontal.slice(Math.floor(horizontal.length / 2));
title = horizontal.slice(1) + text + horizontal; // We reduce the left part of one character to avoid the bar to go beyond its limit
} else {
horizontal = horizontal.slice(horizontal.length / 2);
title = horizontal + text + horizontal;
}
break;
}
return title;
};
const makeContentText = (text, {padding, width, textAlignment, height}) => {
text = ansiAlign(text, {align: textAlignment});
let lines = text.split(NEWLINE);
const textWidth = widestLine(text);
const max = width - padding.left - padding.right;
if (textWidth > max) {
const newLines = [];
for (const line of lines) {
const createdLines = wrapAnsi(line, max, {hard: true});
const alignedLines = ansiAlign(createdLines, {align: textAlignment});
const alignedLinesArray = alignedLines.split('\n');
const longestLength = Math.max(...alignedLinesArray.map(s => stringWidth(s)));
for (const alignedLine of alignedLinesArray) {
let paddedLine;
switch (textAlignment) {
case 'center':
paddedLine = PAD.repeat((max - longestLength) / 2) + alignedLine;
break;
case 'right':
paddedLine = PAD.repeat(max - longestLength) + alignedLine;
break;
default:
paddedLine = alignedLine;
break;
}
newLines.push(paddedLine);
}
}
lines = newLines;
}
if (textAlignment === 'center' && textWidth < max) {
lines = lines.map(line => PAD.repeat((max - textWidth) / 2) + line);
} else if (textAlignment === 'right' && textWidth < max) {
lines = lines.map(line => PAD.repeat(max - textWidth) + line);
}
const paddingLeft = PAD.repeat(padding.left);
const paddingRight = PAD.repeat(padding.right);
lines = lines.map(line => paddingLeft + line + paddingRight);
lines = lines.map(line => {
if (width - stringWidth(line) > 0) {
switch (textAlignment) {
case 'center':
return line + PAD.repeat(width - stringWidth(line));
case 'right':
return line + PAD.repeat(width - stringWidth(line));
default:
return line + PAD.repeat(width - stringWidth(line));
}
}
return line;
});
if (padding.top > 0) {
lines = [...Array.from({length: padding.top}).fill(PAD.repeat(width)), ...lines];
}
if (padding.bottom > 0) {
lines = [...lines, ...Array.from({length: padding.bottom}).fill(PAD.repeat(width))];
}
if (height && lines.length > height) {
lines = lines.slice(0, height);
} else if (height && lines.length < height) {
lines = [...lines, ...Array.from({length: height - lines.length}).fill(PAD.repeat(width))];
}
return lines.join(NEWLINE);
};
const boxContent = (content, contentWidth, options) => {
const colorizeBorder = border => {
const newBorder = options.borderColor ? getColorFn(options.borderColor)(border) : border;
return options.dimBorder ? chalk.dim(newBorder) : newBorder;
};
const colorizeContent = content => options.backgroundColor ? getBGColorFn(options.backgroundColor)(content) : content;
const chars = getBorderChars(options.borderStyle);
const columns = terminalColumns();
let marginLeft = PAD.repeat(options.margin.left);
if (options.float === 'center') {
const marginWidth = Math.max((columns - contentWidth - BORDERS_WIDTH) / 2, 0);
marginLeft = PAD.repeat(marginWidth);
} else if (options.float === 'right') {
const marginWidth = Math.max(columns - contentWidth - options.margin.right - BORDERS_WIDTH, 0);
marginLeft = PAD.repeat(marginWidth);
}
const top = colorizeBorder(NEWLINE.repeat(options.margin.top) + marginLeft + chars.topLeft + (options.title ? makeTitle(options.title, chars.top.repeat(contentWidth), options.titleAlignment) : chars.top.repeat(contentWidth)) + chars.topRight);
const bottom = colorizeBorder(marginLeft + chars.bottomLeft + chars.bottom.repeat(contentWidth) + chars.bottomRight + NEWLINE.repeat(options.margin.bottom));
const LINE_SEPARATOR = (contentWidth + BORDERS_WIDTH + options.margin.left >= columns) ? '' : NEWLINE;
const lines = content.split(NEWLINE);
const middle = lines.map(line => marginLeft + colorizeBorder(chars.left) + colorizeContent(line) + colorizeBorder(chars.right)).join(LINE_SEPARATOR);
return top + LINE_SEPARATOR + middle + LINE_SEPARATOR + bottom;
};
const sanitizeOptions = options => {
// If fullscreen is enabled, max-out unspecified width/height
if (options.fullscreen && process?.stdout) {
let newDimensions = [process.stdout.columns, process.stdout.rows];
if (typeof options.fullscreen === 'function') {
newDimensions = options.fullscreen(...newDimensions);
}
if (!options.width) {
options.width = newDimensions[0];
}
if (!options.height) {
options.height = newDimensions[1];
}
}
// If width is provided, make sure it's not below 1
if (options.width) {
options.width = Math.max(1, options.width - BORDERS_WIDTH);
}
// If height is provided, make sure it's not below 1
if (options.height) {
options.height = Math.max(1, options.height - BORDERS_WIDTH);
}
return options;
};
const determineDimensions = (text, options) => {
options = sanitizeOptions(options);
const widthOverride = options.width !== undefined;
const columns = terminalColumns();
const maxWidth = columns - options.margin.left - options.margin.right - BORDERS_WIDTH;
const widest = widestLine(wrapAnsi(text, columns - BORDERS_WIDTH, {hard: true, trim: false})) + options.padding.left + options.padding.right;
// If title and width are provided, title adheres to fixed width
if (options.title && widthOverride) {
options.title = options.title.slice(0, Math.max(0, options.width - 2));
if (options.title) {
options.title = ` ${options.title} `;
}
} else if (options.title) {
options.title = options.title.slice(0, Math.max(0, maxWidth - 2));
// Recheck if title isn't empty now
if (options.title) {
options.title = ` ${options.title} `;
// If the title is larger than content, box adheres to title width
if (stringWidth(options.title) > widest) {
options.width = stringWidth(options.title);
}
}
}
// If fixed width is provided, use it or content width as reference
options.width = options.width ? options.width : widest;
if (!widthOverride) {
if ((options.margin.left && options.margin.right) && options.width > maxWidth) {
// Let's assume we have margins: left = 3, right = 5, in total = 8
const spaceForMargins = columns - options.width - BORDERS_WIDTH;
// Let's assume we have space = 4
const multiplier = spaceForMargins / (options.margin.left + options.margin.right);
// Here: multiplier = 4/8 = 0.5
options.margin.left = Math.max(0, Math.floor(options.margin.left * multiplier));
options.margin.right = Math.max(0, Math.floor(options.margin.right * multiplier));
// Left: 3 * 0.5 = 1.5 -> 1
// Right: 6 * 0.5 = 3
}
// Re-cap width considering the margins after shrinking
options.width = Math.min(options.width, columns - BORDERS_WIDTH - options.margin.left - options.margin.right);
}
// Prevent padding overflow
if (options.width - (options.padding.left + options.padding.right) <= 0) {
options.padding.left = 0;
options.padding.right = 0;
}
if (options.height && options.height - (options.padding.top + options.padding.bottom) <= 0) {
options.padding.top = 0;
options.padding.bottom = 0;
}
return options;
};
const isHex = color => color.match(/^#(?:[0-f]{3}){1,2}$/i);
const isColorValid = color => typeof color === 'string' && (chalk[color] ?? isHex(color));
const getColorFn = color => isHex(color) ? chalk.hex(color) : chalk[color];
const getBGColorFn = color => isHex(color) ? chalk.bgHex(color) : chalk[camelCase(['bg', color])];
export default function boxen(text, options) {
options = {
padding: 0,
borderStyle: 'single',
dimBorder: false,
textAlignment: 'left',
float: 'left',
titleAlignment: 'left',
...options,
};
// This option is deprecated
if (options.align) {
options.textAlignment = options.align;
}
if (options.borderColor && !isColorValid(options.borderColor)) {
throw new Error(`${options.borderColor} is not a valid borderColor`);
}
if (options.backgroundColor && !isColorValid(options.backgroundColor)) {
throw new Error(`${options.backgroundColor} is not a valid backgroundColor`);
}
options.padding = getObject(options.padding);
options.margin = getObject(options.margin);
options = determineDimensions(text, options);
text = makeContentText(text, options);
return boxContent(text, options.width, options);
}
export {default as _borderStyles} from 'cli-boxes';
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