<?php

/*
 * Copyright 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

final class PhabricatorMacroListController
  extends PhabricatorMacroController {

  public function processRequest() {

    $request = $this->getRequest();
    $viewer = $request->getUser();

    $macro_table = new PhabricatorFileImageMacro();

    $filter = $request->getStr('name');
    if (strlen($filter)) {
      $macros = $macro_table->loadAllWhere(
        'name LIKE %~',
        $filter);

      $nodata = pht(
        'There are no macros matching the filter "%s".',
        phutil_escape_html($filter));
    } else {
      $pager = new AphrontPagerView();
      $pager->setOffset($request->getInt('page'));

      $macros = $macro_table->loadAllWhere(
        '1 = 1 ORDER BY id DESC LIMIT %d, %d',
        $pager->getOffset(),
        $pager->getPageSize());

      // Get an exact count since the size here is reasonably going to be a few
      // thousand at most in any reasonable case.
      $count = queryfx_one(
        $macro_table->establishConnection('r'),
        'SELECT COUNT(*) N FROM %T',
        $macro_table->getTableName());
      $count = $count['N'];

      $pager->setCount($count);
      $pager->setURI($request->getRequestURI(), 'page');

      $nodata = pht('There are no image macros yet.');
    }

    $file_phids = mpull($macros, 'getFilePHID');

    $files = array();
    if ($file_phids) {
      $files = id(new PhabricatorFile())->loadAllWhere(
        "phid IN (%Ls)",
        $file_phids);
      $author_phids = mpull($files, 'getAuthorPHID', 'getPHID');

      $this->loadHandles($author_phids);
    }
    $files_map = mpull($files, null, 'getPHID');

    $filter_form = id(new AphrontFormView())
      ->setMethod('GET')
      ->setUser($request->getUser())
      ->appendChild(
        id(new AphrontFormTextControl())
          ->setName('name')
          ->setLabel('Name')
          ->setValue($filter))
      ->appendChild(
        id(new AphrontFormSubmitControl())
          ->setValue('Filter Image Macros'));

    $filter_view = new AphrontListFilterView();
    $filter_view->appendChild($filter_form);

    $nav = $this->buildSideNavView();
    $nav->selectFilter('/');

    $nav->appendChild($filter_view);


    if ($macros) {
      $pinboard = new PhabricatorPinboardView();
      foreach ($macros as $macro) {
        $file_phid = $macro->getFilePHID();
        $file = idx($files_map, $file_phid);

        $item = new PhabricatorPinboardItemView();
        $item->setImageURI($file->getThumb160x120URI());
        $item->setImageSize(160, 120);
        $item->setURI($this->getApplicationURI('/edit/'.$macro->getID().'/'));
        $item->setHeader($macro->getName());

        if ($file->getAuthorPHID()) {
          $author_handle = $this->getHandle($file->getAuthorPHID());
          $item->appendChild(
            'Created by '.$author_handle->renderLink());
        }

        $datetime = phabricator_date($file->getDateCreated(), $viewer);
        $item->appendChild(
          phutil_render_tag(
            'div',
            array(),
            'Created on '.$datetime));

        $pinboard->addItem($item);
      }
      $nav->appendChild($pinboard);
    } else {
      $list = new PhabricatorObjectItemListView();
      $list->setNoDataString($nodata);
      $nav->appendChild($list);
    }


    if ($filter === null) {
      $nav->appendChild($pager);
    }

    return $this->buildApplicationPage(
      $nav,
      array(
        'device' => true,
        'title' => 'Image Macros',
      ));
  }
}