var ajim_last_refresh = 0;

window.ajim_init = function()

{

  window.ajim_authed = ( auth_level >= USER_LEVEL_CHPREF && ajim_can_mod );

  // have it immediately pull in whatever comments the server wants us to pull

  ajim_watch(true);

  ajim_setup_textarea();

}

addOnloadHook(ajim_init);

window.ajim_watch = function(immediate)

{

  ajim_send_request({

      mode: 'watch',

      lastrefresh: immediate ? 0 : ajim_last_refresh

  });

}

window.ajim_send_request = function(request)

{

  request = ajaxEscape(toJSONString(request));

  ajaxPost(makeUrlNS('Special', 'AjimJson'), 'r=' + request, function()

    {

      if ( ajax.readyState == 4 && ajax.status == 200 )

      {

        var response = String(ajax.responseText + '');

        if ( !check_json_response(response) )

        {

          ajim_handle_invalid_json(response);

          return false;

        }

        response = parseJSON(response);

        ajim_handle_response(response);

      }

    });

}

window.ajim_handle_invalid_json = function(response)

{

  ajim_fail_message_list();

  load_component('l10n');

  var messages = document.getElementById('ajim_messages');

  messages.innerHTML = $lang.get('ajim_err_bad_json') + '<br />';

  messages.appendChild(document.createTextNode(response));

}

window.ajim_handle_response = function(response)

{

  switch(response.mode)

  {

    case 'messages':

      ajim_show_message_list();

      var noposts = document.getElementById('ajim_noposts');

      if ( noposts )

        noposts.parentNode.removeChild(noposts);

      for ( var i = response.messages.length - 1; i >= 0; i-- )

      {

        ajim_inject_message(response.messages[i]);

      }

      if ( response.now )

      {

        window.ajim_last_refresh = response.now;

        ajim_watch();

      }

      break;

    case 'delete':

      var message = document.getElementById('ajim_message:' + response.message_id);

      if ( message )

      {

        message.parentNode.removeChild(message);

      }

      ajim_show_message_list();

      break;

    case 'update':

      var message = document.getElementById('ajim_message:' + response.message_id);

      if ( message )

      {

        var inner = getElementsByClassName(message, 'div', 'ajim_message_inner')[0];

        inner.innerHTML = response.message_html;

        message.meta.message_src = response.message;

      }

      ajim_show_message_list();

      break;

    case 'error':

      ajim_fail_message_list();

      ajim_show_error(response.error);

      break;

  }

}

window.ajim_draw_message = function(message)

{

  var div = document.createElement('div');

  div.id = 'ajim_message:' + message.message_id;

  div.className = 'ajim_message';

  div.meta = {

    message_id: message.message_id,

    message_src: message.message

  };

  // deleted message?

  if ( message.message == '' )

    return div;

  // *sigh* actually draw a message.

  // mod buttons

    var modbuttons = document.createElement('div');

    modbuttons.className = 'ajim_modbuttons';

    if ( !window.ajim_authed && ( ( message.user_id != 1 && message.user_id != ajim_user_id ) || message.user_id == 1 ) )

      modbuttons.style.display = 'none';

    var edbtn = document.createElement('a');

    edbtn.href = '#';

    edbtn.className = 'ajim_btn_edit';

    edbtn.appendChild(document.createTextNode(ajim_str_edit));

    edbtn.onclick = ajim_handle_click_edit;

    modbuttons.appendChild(edbtn);

    modbuttons.appendChild(document.createTextNode(' | '));

    var delbtn = document.createElement('a');

    delbtn.href = '#';

    delbtn.className = 'ajim_btn_delete';

    delbtn.appendChild(document.createTextNode(ajim_str_delete));

    delbtn.onclick = ajim_handle_click_delete;

    modbuttons.appendChild(delbtn);

    div.appendChild(modbuttons);

  // username

    var el = message.user_id == 1 ? 'span' : 'a';

    var username = document.createElement(el);

    username.appendChild(document.createTextNode(message.username));

    username.title = message.rank_info.rank_title;

    username.setAttribute('style', message.rank_info.rank_style);

    if ( message.user_id != 1 )

      username.href = makeUrlNS('User', message.username);

    div.appendChild(username);

  // message header (does a clear: both)

    var messagehead = document.createElement('div');

    messagehead.className = 'ajim_messagehead';

    div.appendChild(messagehead);

  // date

    var date = document.createElement('div');

    date.className = 'ajim_timestamp';

    date.appendChild(document.createTextNode(message.human_time));

    div.appendChild(date);

  // *finally* message

    var msgdata = document.createElement('div');

    msgdata.innerHTML = message.message_html;

    msgdata.className = 'ajim_message_inner';

    div.appendChild(msgdata);

  // message footer

    var messagefoot = document.createElement('div');

    messagefoot.className = 'ajim_messagefoot';

    div.appendChild(messagefoot);

  return div;

}

window.ajim_inject_message = function(message)

{

  var drawn = ajim_draw_message(message);

  var existing = document.getElementById('ajim_message:' + message.message_id);

  if ( existing )

  {

    insertAfter(existing.parentNode, drawn, existing);

    existing.parentNode.removeChild(existing);

  }

  else

  {

    ajim_inject_object(drawn);

  }

}

window.ajim_inject_object = function(element)

{

  var error = document.getElementById('ajim_error');

  insertAfter(error.parentNode, element, error);

}

window.ajim_show_error = function(message)

{

  if ( window.ajim_error_timeout )

    window.clearTimeout(ajim_error_timeout);

  var error = document.getElementById('ajim_error');

  error.innerHTML = '';

  error.appendChild(document.createTextNode(message));

  window.ajim_error_timeout = window.setTimeout(ajim_clear_error, 5000);

}

window.ajim_clear_error = function()

{

  var error = document.getElementById('ajim_error');

  error.innerHTML = '';

}

window.ajim_handle_click_edit = function()

{

  if ( this.editing )

  {

    this.editing = false;

    this.firstChild.nodeValue = $lang.get('ajim_btn_edit');

    this.nextSibling.nextSibling.firstChild.nodeValue = $lang.get('ajim_btn_delete');

    var newsrc = this.ta.value;

    this.ta.parentNode.removeChild(this.ta);

    this.inner.style.display = 'block';

    if ( newsrc == '' )

      ajim_show_error($lang.get('ajim_err_no_post'));

    ajim_hide_message_list();

    ajim_send_request({

        mode: 'update',

        message_id: this.parentNode.parentNode.meta.message_id,

        message: newsrc

      });

  }

  else

  {

    load_component('l10n');

    this.firstChild.nodeValue = $lang.get('ajim_btn_save');

    this.nextSibling.nextSibling.firstChild.nodeValue = $lang.get('etc_cancel').toLowerCase();

    this.editing = true;

    var src = this.parentNode.parentNode.meta.message_src;

    var inner = this.parentNode.nextSibling.nextSibling.nextSibling.nextSibling;

    var ta = document.createElement('textarea');

    ta.value = src;

    ta.style.fontSize = '100%';

    ta.style.width = '93%';

    inner.style.display = 'none';

    this.parentNode.parentNode.appendChild(ta);

    this.ta = ta;

    this.inner = inner;

  }

  return false;

}

window.ajim_handle_click_delete = function()

{

  var editlink = this.previousSibling.previousSibling;

  if ( editlink.editing )

  {

    editlink.editing = false;

    editlink.firstChild.nodeValue = $lang.get('ajim_btn_edit');

    this.firstChild.nodeValue = $lang.get('ajim_btn_delete');

    editlink.ta.parentNode.removeChild(editlink.ta);

    editlink.inner.style.display = 'block';

  }

  else

  {

    ajim_hide_message_list();

    var message_id = this.parentNode.parentNode.meta.message_id;

    ajim_send_request({

        mode: 'delete',

        message_id: message_id

      });

  }

  return false;

}

window.ajim_handle_click_mod = function()

{

  if ( auth_level >= USER_LEVEL_CHPREF )

    return false;

  load_component('login');

  ajaxLogonInit(function(k)

    {

      ajaxLoginReplaceSIDInline(k, false, USER_LEVEL_CHPREF);

      window.setTimeout(function()

        {

          mb_current_obj.destroy();

          ajim_enable_mod_tools();

        }, 500);

    }, USER_LEVEL_CHPREF);

  return false;

}

window.ajim_enable_mod_tools = function()

{

  var mods = document.getElementsByClassName('div', 'ajim_modbuttons');

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

  {

    mods[i].style.display = 'block';

  }

  document.getElementById('ajim_mod').innerHTML = '';

}

window.ajim_setup_textarea = function()

{

  var ta = document.getElementById('ajim_message');

  if ( !ta )

    return false;

  ta.shift = false;

  ta.onkeypress = function(e)

  {

    if ( !e )

      e = window.event;

    if ( !e )

      return true;

    if ( typeof(e.keyCode) == undefined )

      return true;

    if ( e.keyCode == 13 )

    {

      if ( !this.shift )

      {

        ajim_submit_message();

        e.preventDefault();

        return false;

      }

    }

  }

  ta.onkeydown = function(e)

  {

    if ( !e )

      e = window.event;

    if ( !e )

      return true;

    if ( !e.keyCode )

      return true;

    if ( e.keyCode == 16 )

    {

      this.shift = true;

    }

  }

  ta.onkeyup = function(e)

  {

    if ( !e )

      e = window.event;

    if ( !e )

      return true;

    if ( !e.keyCode )

      return true;

    if ( e.keyCode == 16 )

    {

      this.shift = false;

    }

  }

}

window.ajim_submit_message = function()

{

  var ta = document.getElementById('ajim_message');

  if ( ta.value == '' )

  {

    load_component('l10n');

    ajim_show_error($lang.get('ajim_err_no_post'));

    return false;

  }

  var user = document.getElementById('ajim_nickname');

  if ( user.value == '' )

    user.value = 'Guest';

  ajim_hide_message_list();

  ajim_send_request({

      mode: 'submit',

      user: user.value,

      message: ta.value

    });

  ta.value = '';

}

window.ajim_hide_message_list = function()

{

  var messages = document.getElementById('ajim_messages');

  window.ajim_submit_whitey = whiteOutElement(messages);

}

window.ajim_show_message_list = function()

{

  if ( window.ajim_submit_whitey )

    whiteOutReportSuccess(window.ajim_submit_whitey);

  window.ajim_submit_whitey = false;

}

window.ajim_fail_message_list = function()

{

  if ( window.ajim_submit_whitey )

    whiteOutReportFailure(window.ajim_submit_whitey);

  window.ajim_submit_whitey = false;

}