<?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.
 */

class PhabricatorOwnersEditController extends PhabricatorOwnersController {

  private $id;

  public function willProcessRequest(array $data) {
    $this->id = idx($data, 'id');
  }

  public function processRequest() {
    $request = $this->getRequest();
    $user = $request->getUser();

    if ($this->id) {
      $package = id(new PhabricatorOwnersPackage())->load($this->id);
      if (!$package) {
        return new Aphront404Response();
      }
    } else {
      $package = new PhabricatorOwnersPackage();
      $package->setPrimaryOwnerPHID($user->getPHID());
    }

    $e_name = true;
    $e_primary = true;
    $e_owners = true;

    $errors = array();

    if ($request->isFormPost()) {
      $package->setName($request->getStr('name'));
      $package->setDescription($request->getStr('description'));
      $package->setAuditingEnabled($request->getStr('auditing') === 'enabled');

      $primary = $request->getArr('primary');
      $primary = reset($primary);
      $package->setPrimaryOwnerPHID($primary);

      $owners = $request->getArr('owners');
      if ($primary) {
        array_unshift($owners, $primary);
      }
      $owners = array_unique($owners);

      $paths = $request->getArr('path');
      $repos = $request->getArr('repo');

      $path_refs = array();
      for ($ii = 0; $ii < count($paths); $ii++) {
        if (empty($paths[$ii]) || empty($repos[$ii])) {
          continue;
        }
        $path_refs[] = array(
          'repositoryPHID'  => $repos[$ii],
          'path'            => $paths[$ii],
        );
      }

      if (!strlen($package->getName())) {
        $e_name = 'Required';
        $errors[] = 'Package name is required.';
      } else {
        $e_name = null;
      }

      if (!$package->getPrimaryOwnerPHID()) {
        $e_primary = 'Required';
        $errors[] = 'Package must have a primary owner.';
      } else {
        $e_primary = null;
      }

      if (!$owners) {
        $e_owners = 'Required';
        $errors[] = 'Package must have at least one owner.';
      } else {
        $e_owners = null;
      }

      if (!$path_refs) {
        $errors[] = 'Package must include at least one path.';
      }

      if (!$errors) {
        $package->attachUnsavedOwners($owners);
        $package->attachUnsavedPaths($path_refs);
        try {
          $package->save();
          return id(new AphrontRedirectResponse())
            ->setURI('/owners/package/'.$package->getID().'/');
        } catch (AphrontQueryDuplicateKeyException $ex) {
          $e_name = 'Duplicate';
          $errors[] = 'Package name must be unique.';
        }
      }
    } else {
      $owners = $package->loadOwners();
      $owners = mpull($owners, 'getUserPHID');

      $paths = $package->loadPaths();
      $path_refs = array();
      foreach ($paths as $path) {
        $path_refs[] = array(
          'repositoryPHID' => $path->getRepositoryPHID(),
          'path' => $path->getPath(),
        );
      }
    }

    $error_view = null;
    if ($errors) {
      $error_view = new AphrontErrorView();
      $error_view->setTitle('Package Errors');
      $error_view->setErrors($errors);
    }

    $handles = id(new PhabricatorObjectHandleData($owners))
      ->loadHandles();

    $primary = $package->getPrimaryOwnerPHID();
    if ($primary && isset($handles[$primary])) {
      $token_primary_owner = array(
        $primary => $handles[$primary]->getFullName(),
      );
    } else {
      $token_primary_owner = array();
    }

    $token_all_owners = array_select_keys($handles, $owners);
    $token_all_owners = mpull($token_all_owners, 'getFullName');

    if ($package->getID()) {
      $title = 'Edit Package';
      $side_nav_filter = 'edit/'.$this->id;
    } else {
      $title = 'New Package';
      $side_nav_filter = 'new';
    }
    $this->setSideNavFilter($side_nav_filter);

    $repos = id(new PhabricatorRepository())->loadAll();

    $default_paths = array();
    foreach ($repos as $repo) {
      $default_path = $repo->getDetail('default-owners-path');
      if ($default_path) {
        $default_paths[$repo->getPHID()] = $default_path;
      }
    }

    $repos = mpull($repos, 'getCallsign', 'getPHID');

    $template = new AphrontTypeaheadTemplateView();
    $template = $template->render();

    Javelin::initBehavior(
      'owners-path-editor',
      array(
        'root'                => 'path-editor',
        'table'               => 'paths',
        'add_button'          => 'addpath',
        'repositories'        => $repos,
        'input_template'      => $template,
        'pathRefs'            => $path_refs,

        'completeURI'         => '/diffusion/services/path/complete/',
        'validateURI'         => '/diffusion/services/path/validate/',

        'repositoryDefaultPaths' => $default_paths,
      ));

    require_celerity_resource('owners-path-editor-css');

    $cancel_uri = $package->getID()
      ? '/owners/package/'.$package->getID().'/'
      : '/owners/';

    $form = id(new AphrontFormView())
      ->setUser($user)
      ->appendChild(
        id(new AphrontFormTextControl())
          ->setLabel('Name')
          ->setName('name')
          ->setValue($package->getName())
          ->setError($e_name))
      ->appendChild(
        id(new AphrontFormTokenizerControl())
          ->setDatasource('/typeahead/common/users/')
          ->setLabel('Primary Owner')
          ->setName('primary')
          ->setLimit(1)
          ->setValue($token_primary_owner)
          ->setError($e_primary))
      ->appendChild(
        id(new AphrontFormTokenizerControl())
          ->setDatasource('/typeahead/common/users/')
          ->setLabel('Owners')
          ->setName('owners')
          ->setValue($token_all_owners)
          ->setError($e_owners))
      ->appendChild(
        id(new AphrontFormSelectControl())
          ->setName('auditing')
          ->setLabel('Auditing')
          ->setOptions(array(
            'disabled'  => 'Disabled',
            'enabled'   => 'Enabled',
          ))
          ->setValue(
            $package->getAuditingEnabled()
              ? 'enabled'
              : 'disabled'))
      ->appendChild(
        '<h1>Paths</h1>'.
        '<div class="aphront-form-inset" id="path-editor">'.
          '<div style="float: right;">'.
            javelin_render_tag(
              'a',
              array(
                'href' => '#',
                'class' => 'button green',
                'sigil' => 'addpath',
                'mustcapture' => true,
              ),
              'Add New Path').
          '</div>'.
          '<p>Specify the files and directories which comprise this '.
          'package.</p>'.
          '<div style="clear: both;"></div>'.
          javelin_render_tag(
            'table',
            array(
              'class' => 'owners-path-editor-table',
              'sigil' => 'paths',
            ),
            '').
        '</div>')
      ->appendChild(
        id(new AphrontFormTextAreaControl())
          ->setLabel('Description')
          ->setName('description')
          ->setValue($package->getDescription()))
      ->appendChild(
        id(new AphrontFormSubmitControl())
          ->addCancelButton($cancel_uri)
          ->setValue('Save Package'));

    $panel = new AphrontPanelView();
    $panel->setHeader($title);
    $panel->setWidth(AphrontPanelView::WIDTH_WIDE);
    $panel->appendChild($error_view);
    $panel->appendChild($form);

    return $this->buildStandardPageResponse(
      $panel,
      array(
        'title' => $title,
      ));
  }

  protected function getExtraPackageViews() {
    if ($this->id) {
      $extra = array(array('name' => 'Edit',
                           'key'  => 'edit/'.$this->id));
    } else {
      $extra = array(array('name' => 'New',
                           'key'  => 'new'));
    }

    return $extra;
  }
}