// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
// See LICENSE in the project root for license information.
import { Text } from '@rushstack/node-core-library';
/**
 * A sensible fallback column width for consoles.
 *
 * @public
 */
export const DEFAULT_CONSOLE_WIDTH = 80;
/**
 * A collection of utilities for printing messages to the console.
 *
 * @public
 */
export class PrintUtilities {
    /**
     * Returns the width of the console, measured in columns
     */
    static getConsoleWidth() {
        var _a;
        return (_a = process.stdout) === null || _a === void 0 ? void 0 : _a.columns;
    }
    static wrapWords(text, maxLineLength, indentOrLinePrefix) {
        const wrappedLines = PrintUtilities.wrapWordsToLines(text, maxLineLength, indentOrLinePrefix // TS is confused by the overloads
        );
        return wrappedLines.join('\n');
    }
    static wrapWordsToLines(text, maxLineLength, indentOrLinePrefix) {
        var _a;
        let linePrefix;
        switch (typeof indentOrLinePrefix) {
            case 'number':
                linePrefix = ' '.repeat(indentOrLinePrefix);
                break;
            case 'string':
                linePrefix = indentOrLinePrefix;
                break;
            default:
                linePrefix = '';
                break;
        }
        const linePrefixLength = linePrefix.length;
        if (!maxLineLength) {
            maxLineLength = PrintUtilities.getConsoleWidth() || DEFAULT_CONSOLE_WIDTH;
        }
        // Apply word wrapping and the provided line prefix, while also respecting existing newlines
        // and prefix spaces that may exist in the text string already.
        const lines = Text.splitByNewLines(text);
        const wrappedLines = [];
        for (const line of lines) {
            if (line.length + linePrefixLength <= maxLineLength) {
                wrappedLines.push(linePrefix + line);
            }
            else {
                const lineAdditionalPrefix = ((_a = line.match(/^\s*/)) === null || _a === void 0 ? void 0 : _a[0]) || '';
                const whitespaceRegexp = /\s+/g;
                let currentWhitespaceMatch = null;
                let previousWhitespaceMatch;
                let currentLineStartIndex = lineAdditionalPrefix.length;
                let previousBreakRanOver = false;
                while ((currentWhitespaceMatch = whitespaceRegexp.exec(line)) !== null) {
                    if (currentWhitespaceMatch.index + linePrefixLength - currentLineStartIndex > maxLineLength) {
                        let whitespaceToSplitAt;
                        if (!previousWhitespaceMatch ||
                            // Handle the case where there are two words longer than the maxLineLength in a row
                            previousBreakRanOver) {
                            whitespaceToSplitAt = currentWhitespaceMatch;
                        }
                        else {
                            whitespaceToSplitAt = previousWhitespaceMatch;
                        }
                        wrappedLines.push(linePrefix +
                            lineAdditionalPrefix +
                            line.substring(currentLineStartIndex, whitespaceToSplitAt.index));
                        previousBreakRanOver = whitespaceToSplitAt.index - currentLineStartIndex > maxLineLength;
                        currentLineStartIndex = whitespaceToSplitAt.index + whitespaceToSplitAt[0].length;
                    }
                    else {
                        previousBreakRanOver = false;
                    }
                    previousWhitespaceMatch = currentWhitespaceMatch;
                }
                if (previousWhitespaceMatch &&
                    line.length + linePrefixLength - currentLineStartIndex > maxLineLength) {
                    const whitespaceToSplitAt = previousWhitespaceMatch;
                    wrappedLines.push(linePrefix +
                        lineAdditionalPrefix +
                        line.substring(currentLineStartIndex, whitespaceToSplitAt.index));
                    currentLineStartIndex = whitespaceToSplitAt.index + whitespaceToSplitAt[0].length;
                }
                if (currentLineStartIndex < line.length) {
                    wrappedLines.push(linePrefix + lineAdditionalPrefix + line.substring(currentLineStartIndex));
                }
            }
        }
        return wrappedLines;
    }
    static printMessageInBox(message, terminal, optionsOrBoxWidth) {
        let options;
        if (typeof optionsOrBoxWidth === 'number') {
            options = {
                boxWidth: optionsOrBoxWidth
            };
        }
        else {
            options = optionsOrBoxWidth !== null && optionsOrBoxWidth !== void 0 ? optionsOrBoxWidth : {};
        }
        const { borderColor, messageColor, boxWidth: optionsBoxWidth } = options !== null && options !== void 0 ? options : {};
        let boxWidth;
        if (!optionsBoxWidth) {
            const consoleWidth = PrintUtilities.getConsoleWidth() || DEFAULT_CONSOLE_WIDTH;
            boxWidth = Math.floor(consoleWidth / 2);
        }
        else {
            boxWidth = optionsBoxWidth;
        }
        const styleBorder = (s) => { var _a; return (_a = borderColor === null || borderColor === void 0 ? void 0 : borderColor(s)) !== null && _a !== void 0 ? _a : s; };
        const styleMessage = (s) => { var _a; return (_a = messageColor === null || messageColor === void 0 ? void 0 : messageColor(s)) !== null && _a !== void 0 ? _a : s; };
        const maxLineLength = boxWidth - 10;
        const wrappedMessageLines = PrintUtilities.wrapWordsToLines(message, maxLineLength);
        let longestLineLength = 0;
        const trimmedLines = [];
        for (const line of wrappedMessageLines) {
            const trimmedLine = line.trim();
            trimmedLines.push(trimmedLine);
            longestLineLength = Math.max(longestLineLength, trimmedLine.length);
        }
        if (longestLineLength > boxWidth - 2) {
            // If the longest line is longer than the box, print bars above and below the message
            // ═════════════
            //  Message
            // ═════════════
            const headerAndFooter = ` ${styleBorder('═'.repeat(boxWidth))}`;
            terminal.writeLine(headerAndFooter);
            for (const line of wrappedMessageLines) {
                terminal.writeLine(` ${styleMessage(line)}`);
            }
            terminal.writeLine(headerAndFooter);
        }
        else {
            const verticalBorder = styleBorder('║');
            // ╔═══════════╗
            // ║  Message  ║
            // ╚═══════════╝
            terminal.writeLine(` ${styleBorder(`╔${'═'.repeat(boxWidth - 2)}╗`)}`);
            for (const trimmedLine of trimmedLines) {
                const padding = boxWidth - trimmedLine.length - 2;
                const leftPadding = Math.floor(padding / 2);
                const rightPadding = padding - leftPadding;
                terminal.writeLine(` ${verticalBorder}${' '.repeat(leftPadding)}${styleMessage(trimmedLine)}${' '.repeat(rightPadding)}${verticalBorder}`);
            }
            terminal.writeLine(` ${styleBorder(`╚${'═'.repeat(boxWidth - 2)}╝`)}`);
        }
    }
}
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