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<?php
/*
 * Spring Signage Ltd - http://www.springsignage.com
 * Copyright (C) 2015 Spring Signage Ltd
 * (Playlist.php)
 */

namespace Xibo\Controller;

use Xibo\Entity\Permission;
use Xibo\Entity\Widget;
use Xibo\Exception\AccessDeniedException;
use Xibo\Exception\InvalidArgumentException;
use Xibo\Exception\XiboException;
use Xibo\Factory\MediaFactory;
use Xibo\Factory\ModuleFactory;
use Xibo\Factory\PermissionFactory;
use Xibo\Factory\PlaylistFactory;
use Xibo\Factory\RegionFactory;
use Xibo\Factory\TransitionFactory;
use Xibo\Factory\UserGroupFactory;
use Xibo\Factory\WidgetFactory;
use Xibo\Service\ConfigServiceInterface;
use Xibo\Service\DateServiceInterface;
use Xibo\Service\LogServiceInterface;
use Xibo\Service\SanitizerServiceInterface;

/**
 * Class Playlist
 * @package Xibo\Controller
 */
class Playlist extends Base
{
    /**
     * @var PlaylistFactory
     */
    private $playlistFactory;

/**
     * @var RegionFactory
     */
    private $regionFactory;

/**
     * @var MediaFactory
     */
    private $mediaFactory;

/**
     * @var PermissionFactory
     */
    private $permissionFactory;

/**
     * @var TransitionFactory
     */
    private $transitionFactory;

/**
     * @var WidgetFactory
     */
    private $widgetFactory;

/**
     * @var ModuleFactory
     */
    private $moduleFactory;

/**
     * @var UserGroupFactory
     */
    private $userGroupFactory;

/**
     * Set common dependencies.
     * @param LogServiceInterface $log
     * @param SanitizerServiceInterface $sanitizerService
     * @param \Xibo\Helper\ApplicationState $state
     * @param \Xibo\Entity\User $user
     * @param \Xibo\Service\HelpServiceInterface $help
     * @param DateServiceInterface $date
     * @param ConfigServiceInterface $config
     * @param PlaylistFactory $playlistFactory
     * @param RegionFactory $regionFactory
     * @param MediaFactory $mediaFactory
     * @param PermissionFactory $permissionFactory
     * @param TransitionFactory $transitionFactory
     * @param WidgetFactory $widgetFactory
     * @param ModuleFactory $moduleFactory
     * @param UserGroupFactory $userGroupFactory
     */
    public function __construct($log, $sanitizerService, $state, $user, $help, $date, $config, $playlistFactory, $regionFactory, $mediaFactory, $permissionFactory,
        $transitionFactory, $widgetFactory, $moduleFactory, $userGroupFactory)
    {
        $this->setCommonDependencies($log, $sanitizerService, $state, $user, $help, $date, $config);

$this->playlistFactory = $playlistFactory;
        $this->regionFactory = $regionFactory;
        $this->mediaFactory = $mediaFactory;
        $this->permissionFactory = $permissionFactory;
        $this->transitionFactory = $transitionFactory;
        $this->widgetFactory = $widgetFactory;
        $this->moduleFactory = $moduleFactory;
        $this->userGroupFactory = $userGroupFactory;
    }

/**
     * Search
     */
    public function grid()
    {
        $this->getState()->template = 'grid';

$playlists = [];

$this->getState()->setData($playlists);
    }

/**
     * Add
     */
    public function add()
    {
        $playlist = $this->playlistFactory->createEmpty();
        $playlist->name = $this->getSanitizer()->getString('name');
        $playlist->save();

// Assign to a region?
        if ($this->getSanitizer()->getInt('regionId') !== null) {
            $region = $this->regionFactory->getById($this->getSanitizer()->getInt('regionId'));

// Assert the provided display order
            $playlist->displayOrder = $this->getSanitizer()->getInt('displayOrder');

// Assign to a region
            $region->assignPlaylist($playlist);
            $region->save();

if ($this->getConfig()->GetSetting('INHERIT_PARENT_PERMISSIONS') == 1) {
                // Apply permissions from the Parent
                foreach ($region->permissions as $permission) {
                    /* @var Permission $permission */
                    $permission = $this->permissionFactory->create($permission->groupId, get_class($region), $region->getId(), $permission->view, $permission->edit, $permission->delete);
                    $permission->save();
                }
            }
        }

// Notify
        $playlist->notifyLayouts();

// Permissions
        if ($this->getConfig()->GetSetting('INHERIT_PARENT_PERMISSIONS' == 0)) {
            // Default permissions
            foreach ($this->permissionFactory->createForNewEntity($this->getUser(), get_class($playlist), $playlist->getId(), $this->getConfig()->GetSetting('LAYOUT_DEFAULT'), $this->userGroupFactory) as $permission) {
                /* @var Permission $permission */
                $permission->save();
            }
        }

// Success
        $this->getState()->hydrate([
            'httpStatus' => 201,
            'message' => sprintf(__('Added %s'), $playlist->name),
            'id' => $playlist->playlistId,
            'data' => $playlist
        ]);
    }

/**
     * Edit
     * @param $playlistId
     * @throws \Xibo\Exception\NotFoundException
     *
     *
     */
    public function edit($playlistId)
    {
        $playlist = $this->playlistFactory->getById($playlistId);

if (!$this->getUser()->checkEditable($playlist))
            throw new AccessDeniedException();

$playlist->name = $this->getSanitizer()->getString('name');
        $playlist->setChildObjectDependencies($this->regionFactory);
        $playlist->save();

// Success
        $this->getState()->hydrate([
            'httpStatus' => 200,
            'message' => sprintf(__('Edited %s'), $playlist->name),
            'id' => $playlist->playlistId,
            'data' => $playlist
        ]);
    }

/**
     * Delete
     * @param $playlistId
     * @throws \Xibo\Exception\NotFoundException
     */
    public function delete($playlistId)
    {
        $playlist = $this->playlistFactory->getById($playlistId);

if (!$this->getUser()->checkDeleteable($playlist))
            throw new AccessDeniedException();

$playlist->setChildObjectDependencies($this->regionFactory);

// Issue the delete
        $playlist->delete();

// Success
        $this->getState()->hydrate([
            'httpStatus' => 204,
            'message' => sprintf(__('Deleted %s'), $playlist->name)
        ]);
    }

/**
     * Widget Grid
     *
     * @SWG\Get(
     *  path="/playlist/widget",
     *  operationId="playlistSearch",
     *  tags={"playlist"},
     *  summary="Playlist Widget Search",
     *  description="Search widgets on a Playlist",
     *  @SWG\Parameter(
     *      name="playlistId",
     *      in="formData",
     *      description="The Playlist ID to Search",
     *      type="integer",
     *      required=true
     *   ),
     *  @SWG\Parameter(
     *      name="widgetId",
     *      in="formData",
     *      description="The widget ID to Search",
     *      type="integer",
     *      required=false
     *   ),
     *  @SWG\Response(
     *      response=200,
     *      description="successful operation",
     *      @SWG\Schema(
     *          type="array",
     *          @SWG\Items(ref="#/definitions/Widget")
     *      )
     *  )
     * )
     */
    public function widgetGrid()
    {
        $this->getState()->template = 'grid';

// Transitions
        $transIn = $this->transitionFactory->getEnabledByType('in');
        $transOut = $this->transitionFactory->getEnabledByType('out');
        $widgets = $this->widgetFactory->query($this->gridRenderSort(), $this->gridRenderFilter([
            'playlistId' => $this->getSanitizer()->getInt('playlistId'),
            'widgetId' => $this->getSanitizer()->getInt('widgetId')
        ]));
        foreach ($widgets as $widget) {
            /* @var Widget $widget */
            $widget->load();

$widget->module = $this->moduleFactory->createWithWidget($widget);

// Add property for name
            $widget->name = $widget->module->getName();

// Add property for transition
            $widget->transition = sprintf('%s / %s', $widget->module->getTransition('in'), $widget->module->getTransition('out'));

if ($this->isApi())
                continue;

$widget->includeProperty('buttons');

if ($this->getUser()->checkEditable($widget)) {
                $widget->buttons[] = array(
                    'id' => 'timeline_button_edit',
                    'url' => $this->urlFor('module.widget.edit.form', ['id' => $widget->widgetId]),
                    'text' => __('Edit')
                );
            }

if ($this->getUser()->checkDeleteable($widget)) {
                $widget->buttons[] = array(
                    'id' => 'timeline_button_delete',
                    'url' => $this->urlFor('module.widget.delete.form', ['id' => $widget->widgetId]),
                    'text' => __('Delete'),
                    'multi-select' => true,
                    'dataAttributes' => array(
                        array('name' => 'commit-url', 'value' => $this->urlFor('module.widget.delete', ['id' => $widget->widgetId])),
                        array('name' => 'commit-method', 'value' => 'delete'),
                        array('name' => 'id', 'value' => 'timeline_button_delete'),
                        array('name' => 'text', 'value' => __('Delete')),
                        array('name' => 'rowtitle', 'value' => $widget->module->getName()),
                        array('name' => 'options', 'value' => 'unassign')
                    )
                );
            }

if ($this->getUser()->checkPermissionsModifyable($widget)) {
                $widget->buttons[] = array(
                    'id' => 'timeline_button_permissions',
                    'url' => $this->urlFor('user.permissions.form', ['entity' => 'Widget', 'id' => $widget->widgetId]),
                    'text' => __('Permissions')
                );
            }

if (count($transIn) > 0) {
                $widget->buttons[] = array(
                    'id' => 'timeline_button_trans_in',
                    'url' => $this->urlFor('module.widget.transition.edit.form', ['id' => $widget->widgetId, 'type' => 'in']),
                    'text' => __('In Transition')
                );
            }

if (count($transOut) > 0) {
                $widget->buttons[] = array(
                    'id' => 'timeline_button_trans_in',
                    'url' => $this->urlFor('module.widget.transition.edit.form', ['id' => $widget->widgetId, 'type' => 'out']),
                    'text' => __('Out Transition')
                );
            }
        }

// Store the table rows
        $this->getState()->recordsTotal = $this->widgetFactory->countLast();
        $this->getState()->setData($widgets);
    }

/**
     * Form for assigning Library Items to a Playlist
     * @param int $playlistId
     * @throws \Xibo\Exception\NotFoundException
     */
    public function libraryAssignForm($playlistId)
    {
        $playlist = $this->playlistFactory->getById($playlistId);

if (!$this->getUser()->checkEditable($playlist))
            throw new AccessDeniedException();

$this->getState()->template = 'playlist-form-library-assign';
        $this->getState()->setData([
            'playlist' => $playlist,
            'modules' => $this->moduleFactory->query(null, ['regionSpecific' => 0, 'enabled' => 1, 'assignable' => 1]),
            'help' => $this->getHelp()->link('Library', 'Assign')
        ]);
    }

/**
     * Add Library items to a Playlist
     * @param int $playlistId
     *
     * @SWG\Post(
     *  path="/playlist/library/assign/{playlistId}",
     *  operationId="playlistLibraryAssign",
     *  tags={"playlist"},
     *  summary="Assign Library Items",
     *  description="Assign Media from the Library to this Playlist",
     *  @SWG\Parameter(
     *      name="playlistId",
     *      in="path",
     *      description="The Playlist ID to assign to",
     *      type="integer",
     *      required=true
     *   ),
     *  @SWG\Parameter(
     *      name="media",
     *      in="formData",
     *      description="Array of Media IDs to assign",
     *      type="array",
     *      required=true,
     *      @SWG\Items(type="integer")
     *   ),
     *  @SWG\Parameter(
     *      name="duration",
     *      in="formData",
     *      description="Optional duration for all Media in this assignment to use on the Widget",
     *      type="integer",
     *      required=false
     *   ),
     *  @SWG\Response(
     *      response=200,
     *      description="successful operation",
     *      @SWG\Schema(ref="#/definitions/Playlist")
     *  )
     * )
     */
    public function libraryAssign($playlistId)
    {
        $playlist = $this->playlistFactory->getById($playlistId);

if (!$this->getUser()->checkEditable($playlist))
            throw new AccessDeniedException();

$playlist->setChildObjectDependencies($this->regionFactory);

// Expect a list of mediaIds
        $media = $this->getSanitizer()->getIntArray('media');

if (count($media) <= 0)
            throw new \InvalidArgumentException(__('Please provide Media to Assign'));

// Optional Duration
        $duration = ($this->getSanitizer()->getInt('duration'));

$newWidgets = [];

// Loop through all the media
        foreach ($media as $mediaId) {
            /* @var int $mediaId */
            $item = $this->mediaFactory->getById($mediaId);

if (!$this->getUser()->checkViewable($item))
                throw new AccessDeniedException(__('You do not have permissions to use this media'));

if ($item->mediaType == 'genericfile' || $item->mediaType == 'font')
                throw new InvalidArgumentException(sprintf(__('You cannot assign file type %s to a playlist'), $item->mediaType), 'mediaType');

// Create a module
            $module = $this->moduleFactory->create($item->mediaType);

// Determine the duration
            $itemDuration = ($duration !== null) ? $duration : $item->duration;
            $itemDuration = ($itemDuration == 0) ? $module->determineDuration() : $itemDuration;

// Create a widget
            $widget = $this->widgetFactory->create($this->getUser()->userId, $playlistId, $item->mediaType, $itemDuration);
            $widget->assignMedia($item->mediaId);

// Assign the widget to the module
            $module->setWidget($widget);

// Set default options (this sets options on the widget)
            $module->setDefaultWidgetOptions();

// If a duration is provided, then we want to use it
            if ($duration !== null)
                $widget->useDuration = 1;

// Assign the widget to the playlist
            $playlist->assignWidget($widget);

// Add to a list of new widgets
            $newWidgets[] = $widget;
        }

// Save the playlist
        $playlist->save();

// Handle permissions
        foreach ($newWidgets as $widget) {
            /* @var Widget $widget */
            if ($this->getConfig()->GetSetting('INHERIT_PARENT_PERMISSIONS') == 1) {
                // Apply permissions from the Parent
                foreach ($playlist->permissions as $permission) {
                    /* @var Permission $permission */
                    $permission = $this->permissionFactory->create($permission->groupId, get_class($widget), $widget->getId(), $permission->view, $permission->edit, $permission->delete);
                    $permission->save();
                }
            } else {
                foreach ($this->permissionFactory->createForNewEntity($this->getUser(), get_class($widget), $widget->getId(), $this->getConfig()->GetSetting('LAYOUT_DEFAULT'), $this->userGroupFactory) as $permission) {
                    /* @var Permission $permission */
                    $permission->save();
                }
            }
        }

// Success
        $this->getState()->hydrate([
            'message' => __('Media Assigned'),
            'data' => $playlist
        ]);
    }

/**
     * Order a playlist and its widgets
     * @param int $playlistId
     *
     * SWG\Post(
     *  path="/playlist/order/{playlistId}",
     *  operationId="playlistOrder",
     *  tags={"playlist"},
     *  summary="Order Widgets",
     *  description="Set the order of widgets in the Playlist",
     *  SWG\Parameter(
     *      name="playlistId",
     *      in="path",
     *      description="The Playlist ID to Order",
     *      type="integer",
     *      required=true
     *   ),
     *  SWG\Parameter(
     *      name="widgets",
     *      in="formData",
     *      description="Array of widgetIds and positions",
     *      type="array",
     *      required=true,
     *      SWG\Items(
     *          ref="#/definitions/PlaylistWidgetList"
     *      )
     *   ),
     *  SWG\Response(
     *      response=200,
     *      description="successful operation",
     *      SWG\Schema(ref="#/definitions/Playlist")
     *  )
     * )
     *
     * @throws XiboException
     */
    function order($playlistId)
    {
        $playlist = $this->playlistFactory->getById($playlistId);

if (!$this->getUser()->checkEditable($playlist))
            throw new AccessDeniedException();

// Load the widgets
        $playlist->setChildObjectDependencies($this->regionFactory);
        $playlist->load();

// Get our list of widget orders
        $widgets = $this->getSanitizer()->getParam('widgets', null);

if ($widgets == null)
                throw new InvalidArgumentException(__('Cannot Save empty region playlist. Please add widgets'), 'widgets');

// Go through each one and move it
        foreach ($widgets as $widgetId => $position) {

// Find this item in the existing list and add it to our new order
            foreach ($playlist->widgets as $widget) {
                /* @var \Xibo\Entity\Widget $widget */
                if ($widget->getId() == $widgetId) {
                    $this->getLog()->debug('Setting Display Order ' . $position . ' on widgetId ' . $widgetId);
                    $widget->displayOrder = $position;
                    break;
                }
            }
        }

$playlist->save();

// Success
        $this->getState()->hydrate([
            'message' => __('Order Changed'),
            'data' => $playlist
        ]);
    }
}