/**
 * @fileoverview Stylish reporter
 * @author Sindre Sorhus
 */
'use strict';

const chalk = require('chalk'),
  util = require('node:util'),
  table = require('../../shared/text-table');

//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------

/**
 * Given a word and a count, append an s if count is not one.
 * @param {string} word A word in its singular form.
 * @param {int} count A number controlling whether word should be pluralized.
 * @returns {string} The original word with an s on the end if count is not one.
 */
function pluralize(word, count) {
  return count === 1 ? word : `${word}s`;
}

//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------

module.exports = function (results) {
  let output = '\n',
    errorCount = 0,
    warningCount = 0,
    fixableErrorCount = 0,
    fixableWarningCount = 0,
    summaryColor = 'yellow';

  results.forEach((result) => {
    const messages = result.messages;

    if (messages.length === 0) {
      return;
    }

    errorCount += result.errorCount;
    warningCount += result.warningCount;
    fixableErrorCount += result.fixableErrorCount;
    fixableWarningCount += result.fixableWarningCount;

    output += `${chalk.underline(result.filePath)}\n`;

    output += `${table(
      messages.map((message) => {
        let messageType;

        if (message.fatal || message.severity === 2) {
          messageType = chalk.red('error');
          summaryColor = 'red';
        } else {
          messageType = chalk.yellow('warning');
        }

        return [
          '',
          String(message.line || 0),
          String(message.column || 0),
          messageType,
          message.message.replace(/([^ ])\.$/u, '$1'),
          chalk.dim(message.ruleId || ''),
        ];
      }),
      {
        align: ['', 'r', 'l'],
        stringLength(str) {
          return util.stripVTControlCharacters(str).length;
        },
      }
    )
      .split('\n')
      .map((el) =>
        el.replace(/(\d+)\s+(\d+)/u, (m, p1, p2) => chalk.dim(`${p1}:${p2}`))
      )
      .join('\n')}\n\n`;
  });

  const total = errorCount + warningCount;

  if (total > 0) {
    output += chalk[summaryColor].bold(
      [
        '\u2716 ',
        total,
        pluralize(' problem', total),
        ' (',
        errorCount,
        pluralize(' error', errorCount),
        ', ',
        warningCount,
        pluralize(' warning', warningCount),
        ')\n',
      ].join('')
    );

    if (fixableErrorCount > 0 || fixableWarningCount > 0) {
      output += chalk[summaryColor].bold(
        [
          '  ',
          fixableErrorCount,
          pluralize(' error', fixableErrorCount),
          ' and ',
          fixableWarningCount,
          pluralize(' warning', fixableWarningCount),
          ' potentially fixable with the `--fix` option.\n',
        ].join('')
      );
    }
  }

  // Resets output color, for prevent change on top level
  return total > 0 ? chalk.reset(output) : '';
};