<?php

namespace App\Models\Content;

use App\Events\CreateNewContent;
use App\Events\Event;
use App\Models\FileManager\File;
use App\Models\User;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Modules\Categories\Entities\Category;

/**
 * Class Content
 */
class Content extends Model
{
    use SoftDeletes, ModelTraits\Content;
    public $timestamps = true;
    protected $fillable = [
        'user_id',
        'parent_id',
        'category_id',
        'language',
        'module_handler',
        'published_from',
        'published_to',
        'title_photo',
        'template',
        'is_homepage',
        'title',
        'url',
        'meta_keywords',
        'meta_description',
        'content',
        'module_settings',
        'status'
    ];
    const STATUS_DRAFT = 'draft';
    const STATUS_PROTECTED = 'protected';
    const STATUS_PUBLIC = 'public';

    /**
     * Is current content draft?
     *
     * @return bool
     */
    public function isDraft()
    {
        return $this->status == self::STATUS_DRAFT;
    }

    /**
     * Is current content visible for all visitors?
     *
     * @return bool
     */
    public function isPublic()
    {
        return $this->status == self::STATUS_PUBLIC;
    }

    /**
     * Is current content visible only for logged users?
     *
     * @return bool
     */
    public function isProtected()
    {
        return $this->status == self::STATUS_PROTECTED;
    }

    /**
     * Is current content visible for logged user OR for everyone?
     *
     * @return bool
     */
    public function isVisible()
    {
        return $this->isPublic() || $this->isProtected();
    }

    /**
     * Mark relationship with its historical records
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function history()
    {
        return $this->hasMany(\App\Models\Content\ContentHistory::class);
    }

    /**
     * Mark relationship with users table
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function author()
    {
        return $this->belongsTo(User::class, 'user_id');
    }

    /**
     * Related files to content page
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function files()
    {
        return $this->belongsToMany(File::class, 'contents_has_files');
    }

    /**
     * Category of content page
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function category()
    {
        return $this->belongsTo(Category::class);
    }

    public function save(array $options = [])
    {
        $saved = parent::save($options);

        // fire event about creating new content page
        if ($this->wasRecentlyCreated) {
            Event::fire(new CreateNewContent($this));
        }

        return $saved;
    }
}