// ==UserScript==
// @name        Поле имя на 2ch.hk
// @namespace   sosach
// @include     http*://2ch.hk/*
// @require     http://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js
// @version     1
// @grant           GM_getValue
// @grant           GM_setValue
// @grant           GM_deleteValue
// @grant           GM_openInTab
// @grant           GM_xmlhttpRequest
// @grant           GM.getValue
// @grant           GM.setValue
// @grant           GM.deleteValue
// @grant           GM.xmlHttpRequest
// @grant           unsafeWindow
// ==/UserScript==

$(function(){
  var appendInfo = [
    {$form : $("#postform"), appendFunc: appendNameBlockToPostform},
    {$form : $("#qr-postform"), appendFunc: appendNameBlockToQrPostform}
  ];

  appendInfo.forEach(function(info){
    if(info.$form.length === 0){
      return;
    }
    var $name = info.$form.find("[name=name]");
    var isNameInputExists = ($name.length > 0);
    if(!isNameInputExists){
      if($.isFunction(info.appendFunc)){
        info.appendFunc(info.$form);
        $name = info.$form.find("[name=name]");
      }
    }
    configureNameInput($name);
  });

  //******************************************************

  function appendNameBlockToPostform($form){
    var nameHtml = "<tr class='name'><td class='label desktop'><label for='name'>Имя</label></td><td><input value='' id='name' name='name' size='30' placeholder='Имя' type='text'></td></tr>";
    $form.find("tr.mail").after(nameHtml);
  }

  function appendNameBlockToQrPostform($form){
    var nameHtml = "<div class='qr-mail'><input name='name' id='qr-name' placeholder='Имя' class='qmail' type='text'></div>";
    $form.find("div.qr-mail").before(nameHtml);
  }

  //******************************************************

  function configureNameInput($name){
      var key = "2ch_name";
      $name.on("input", function(){
        var value = $name.val();
        localStorage.setItem(key, value);
      });

      var restoredValue = localStorage.getItem(key);
      if(restoredValue){
        $name.val(restoredValue);
      }
  }

});