/**
   * @fileoverview Stylish reporter
   * @author Sindre Sorhus
   */
  "use strict";
  
  const chalk = require("chalk"),
      table = require("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 = "
  ",
          errors = 0,
          warnings = 0,
          summaryColor = "yellow";
  
      results.forEach(result => {
          const messages = result.messages;
  
          if (messages.length === 0) {
              return;
          }
  
          errors += result.errorCount;
          warnings += result.warningCount;
  
          output += `${chalk.underline(result.filePath)}
  `;
  
          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 [
                      "",
                      message.line || 0,
                      message.column || 0,
                      messageType,
                      message.message.replace(/\.$/, ""),
                      chalk.dim(message.ruleId || "")
                  ];
              }),
              {
                  align: ["", "r", "l"],
                  stringLength(str) {
                      return chalk.stripColor(str).length;
                  }
              }
          ).split("
  ").map(el => el.replace(/(\d+)\s+(\d+)/, (m, p1, p2) => chalk.dim(`${p1}:${p2}`))).join("
  ")}
  
  `;
      });
  
      const total = errors + warnings;
  
      if (total > 0) {
          output += chalk[summaryColor].bold([
              "\u2716 ", total, pluralize(" problem", total),
              " (", errors, pluralize(" error", errors), ", ",
              warnings, pluralize(" warning", warnings), ")
  "
          ].join(""));
      }
  
      return total > 0 ? output : "";
  };