<?php
namespace App\Widgets\OrbitSlider;

use App\Http\Requests\Request;
use App\Models\Directory;
use App\Models\Widget;
use App\Widgets\Contracts\PublicWidget;
use App\Widgets\Contracts\WidgetRenderer;
use App\Widgets\Exceptions\WidgetExistsException;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;

class OrbitSlider implements PublicWidget
{
    const DIRECTORY_NAME = 'orbit-slider-data';
    const CONFIG_FILENAME = 'orbit-slider-directory-id';

    /**
     * Name getter
     *
     * @return string
     */
    public static function getName()
    {
        return 'widgets/orbitSlider.widgetName';
    }

    /**
     * Getter for description
     *
     * @return string
     */
    public static function getDescription()
    {
        return 'widgets/orbitSlider.widgetDescription';
    }

    /**
     * @param Widget  $widget
     * @param Request $request
     *
     * @throws WidgetExistsException
     *
     * @return Widget
     */
    public static function save(Widget $widget, Request $request)
    {
        $settings = json_decode($widget->settings);
        $parentDirectoryId = Storage::get(self::CONFIG_FILENAME);
        $directoryId = isset($settings->directoryId) ? $settings->directoryId : null;
        $edit = false;

        // check if directory does not exists
        $exists = Directory::where('name', $request->name)
                           ->where('parent_id', $parentDirectoryId);

        if ($directoryId) {
            $edit = true;
            $exists = $exists->where('id', '!=', $directoryId);
        }

        $exists = $exists->exists();

        if ($exists) {
            throw new WidgetExistsException($request->name);
        }

        $directory = new Directory;

        if ($edit) {
            $directory = Directory::find($directoryId);
        }

        // setup some information about directory
        $directory->user_id = Auth::user()->id;
        $directory->parent_id = $parentDirectoryId;
        $directory->name = $request->name;
        $directory->description = $request->description;
        $directory->save();

        $settings = [
            'directoryId' => $directory->id,
            'sliderClass' => isset($request->containerClass) ? $request->containerClass : '',
            'code'        => $request->code
        ];

        $widget->settings = json_encode($settings);

        return $widget;
    }

    /**
     * Getter for presenter/renderer of this widget
     *
     * @return WidgetRenderer
     */
    public static function getPresenter()
    {
        return Presenters\OrbitSlider::class;
    }

    /**
     * Function for installing given widget
     *
     * @return mixed
     */
    public static function install()
    {
        $directory = Directory::where('name', self::DIRECTORY_NAME)
                              ->first();

        if (!count($directory)) {
            $directory = Directory::create([
                                               'name'   => self::DIRECTORY_NAME,
                                               'hidden' => true
                                           ]);
        }

        Storage::put(self::CONFIG_FILENAME, $directory->id);
    }

    /**
     * Function for uninstalling widget
     */
    public static function uninstall()
    {
        // TODO: Implement uninstall() method.
    }
}