<?php
/**
 * @author      Komma <info@komma.pro>
 * @copyright   (c) 2012-2016, Komma
 */

namespace App\Komma\Updates\Models;

use App\Komma\Documents\DocumentsTrait;
use App\Komma\Documents\Kms\DocumentableInterface;
use App\Komma\Kms\Core\AbstractTranslatableModel;
use App\Komma\Kms\Core\Entities\DisplayNameInterface;
use App\Komma\Kms\Core\Entities\DisplayNameTrait;
use App\Komma\Languages\Models\Language;
use App\Komma\Sites\HasSiteInterface;
use App\Komma\Sites\Models\Site;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\HasOne;

/**
 * Class Page
 *
 * @property int site_id
 * @property int lft
 * @property int rgt
 * @property int tree
 * @property-read \Carbon $date
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Languages\Models\Language[] $languages
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Sites\Models\Site[] $sites
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Updates\Models\UpdateTranslation[] $translations
 * @mixin \Eloquent
 * @property int $id
 * @property int $active
 * @property \Carbon\Carbon|null $created_at
 * @property \Carbon\Carbon|null $updated_at
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update whereActive($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update whereCreatedAt($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update whereDate($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update whereId($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update whereUpdatedAt($value)
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Documents\Models\Document[] $documents
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Documents\Models\Document[] $images
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update newModelQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update newQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Updates\Models\Update query()
 */
class Update extends AbstractTranslatableModel implements HasSiteInterface, DocumentableInterface, DisplayNameInterface
{
    use DocumentsTrait;
    use DisplayNameTrait;

    protected $table = 'updates';

    protected $class = self::class;

    protected $guarded = ['id', 'site_id'];

    /**
     * Gets the translation models for this model
     *
     * @return HasMany that resolves to AbstractTranslationModel instances
     */
    public function translations(): HasMany
    {
        return $this->hasMany(UpdateTranslation::class);
    }

    public function languages(): BelongsToMany
    {
        return $this->belongsToMany(Language::class, 'update_translations')
            ->withPivot('slug', 'name', 'description')
            ->withTimestamps();
    }

    /**
     * Get the fallback translation model (English: 40).
     *
     * @throws \RuntimeException
     */
    public function fallback_translation(): HasOne
    {
        // Note: Use magic number 40 as english translation
        return $this->hasOne(UpdateTranslation::class)->where('language_id', '=', 40);
    }

    /**
     * Get the site for this this model
     *
     * @return belongsTo
     */
    public function site(): BelongsTo
    {
        return $this->belongsTo(Site::class, 'site_id'); //Model must have site_id attribute
    }

    /**
     * Some logic that makes it possible to overrule images by translation images
     *
     * @return \Illuminate\Database\Eloquent\Collection|null
     */
    public function languageImages()
    {
        // Check if loaded else load
        if (! isset($this->images)) {
            $this->load('images');
        }

        // Check that there are images
        if (! isset($this->images) || $this->images->isEmpty()) {
            return null;
        }

        // First grab the global defined images
        $globalImages = $this->images->where('key', 'Documents-updates');

        // Then grab the translation images
        $translationImages = $this->images->where('key', 'Documents-updateTranslation-'.\App::getLocale());

        // If there are translation images we return those
        if (isset($translationImages) && $translationImages->isNotEmpty()) {
            return $translationImages->values();
        }

        // Else we return the global images
        return $globalImages->values();
    }

    public function socialMediaImage()
    {
        // Check if loaded else load
        if (! isset($this->images)) {
            $this->load('images');
        }

        // Check that there are images
        if (! isset($this->images) || $this->images->isEmpty()) {
            return null;
        }

        // Then grab the translation images
        $socialMediaImage = $this->images->where('key', 'Documents-updateTranslationSocial-'.\App::getLocale());

        // If there are translation images we return those
        if (isset($socialMediaImage) && $socialMediaImage->isNotEmpty()) {
            return $socialMediaImage->values();
        }

        return $this->languageImages();
    }
}