<?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 PhabricatorFileMacroListController
  extends PhabricatorFileController {

  public function processRequest() {

    $request = $this->getRequest();

    $macro_table = new PhabricatorFileImageMacro();
    if ($request->getStr('name') !== null) {
      $macros = $macro_table->loadAllWhere(
        'name LIKE %~',
        $request->getStr('name'));
    } 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');
    }

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

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

    $rows = array();
    foreach ($macros as $macro) {
      $file_phid = $macro->getFilePHID();
      $file = idx($files_map, $file_phid);

      $author_link = isset($author_phids[$file_phid])
        ? $handles[$author_phids[$file_phid]]->renderLink()
        : null;

      $rows[] = array(
        phutil_render_tag(
          'a',
          array(
            'href' => '/file/macro/edit/'.$macro->getID().'/',
          ),
          phutil_escape_html($macro->getName())),

        $author_link,
        phutil_render_tag(
          'a',
          array(
            'href'    => $file ? $file->getBestURI() : null,
            'target'  => '_blank',
          ),
          phutil_render_tag(
            'img',
            array(
              'src' => $file ? $file->getBestURI() : null,
            ))),
        javelin_render_tag(
          'a',
          array(
            'href' => '/file/macro/delete/'.$macro->getID().'/',
            'sigil' => 'workflow',
            'class' => 'grey small button',
          ),
          'Delete'),
      );
    }

    $table = new AphrontTableView($rows);
    $table->setHeaders(
      array(
        'Name',
        'Author',
        'Image',
        '',
      ));
    $table->setColumnClasses(
      array(
        'pri',
        '',
        'wide thumb',
        'action',
      ));

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

    $filter_view = new AphrontListFilterView();
    $filter_view->appendChild($filter_form);
    $filter_view->addButton(
      phutil_render_tag(
        'a',
        array(
          'href'  => '/file/macro/edit/',
          'class' => 'green button',
        ),
        'New Image Macro'));

    $panel = new AphrontPanelView();
    $panel->appendChild($table);
    $panel->setHeader('Image Macros');
    if ($request->getStr('name') === null) {
      $panel->appendChild($pager);
    }

    $side_nav = new PhabricatorFileSideNavView();
    $side_nav->setSelectedFilter('all_macros');
    $side_nav->appendChild($filter_view);
    $side_nav->appendChild($panel);

    return $this->buildStandardPageResponse(
      $side_nav,
      array(
        'title' => 'Image Macros',
      ));
  }
}