// CodeMirror, copyright (c) by Marijn Haverbeke and others

// Distributed under an MIT license: https://codemirror.net/LICENSE



// Depends on htmlhint.js from http://htmlhint.com/js/htmlhint.js



// declare global: HTMLHint



(function(mod) {

  if (typeof exports == "object" && typeof module == "object") // CommonJS

    mod(require("../../lib/codemirror"), require("htmlhint"));

  else if (typeof define == "function" && define.amd) // AMD

    define(["../../lib/codemirror", "htmlhint"], mod);

  else // Plain browser env

    mod(CodeMirror, window.HTMLHint);

})(function(CodeMirror, HTMLHint) {

  "use strict";



  var defaultRules = {

    "tagname-lowercase": true,

    "attr-lowercase": true,

    "attr-value-double-quotes": true,

    "doctype-first": false,

    "tag-pair": true,

    "spec-char-escape": true,

    "id-unique": true,

    "src-not-empty": true,

    "attr-no-duplication": true

  };



  CodeMirror.registerHelper("lint", "html", function(text, options) {

    var found = [];

    if (HTMLHint && !HTMLHint.verify) HTMLHint = HTMLHint.HTMLHint;

    if (!HTMLHint) HTMLHint = window.HTMLHint;

    if (!HTMLHint) {

      if (window.console) {

          window.console.error("Error: HTMLHint not found, not defined on window, or not available through define/require, CodeMirror HTML linting cannot run.");

      }

      return found;

    }

    var messages = HTMLHint.verify(text, options && options.rules || defaultRules);

    for (var i = 0; i < messages.length; i++) {

      var message = messages[i];

      var startLine = message.line - 1, endLine = message.line - 1, startCol = message.col - 1, endCol = message.col;

      found.push({

        from: CodeMirror.Pos(startLine, startCol),

        to: CodeMirror.Pos(endLine, endCol),

        message: message.message,

        severity : message.type

      });

    }

    return found;

  });

});

