<?php

namespace App\Models;

use App\Lib\Helpers\FileStorageHelper;
use App\Lib\Helpers\ToolboxHelper;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Validation\ValidationException;

/**
 * @property integer                                 $id                      Id.
 * @property string                                  $title                   Title.
 * @property string                                  $content                 WYSWYG content.
 * @property boolean                                 $button_display          Display the button.
 * @property string|null                             $button_text             Title of the button.
 * @property string|null                             $button_url              Link of the button.
 * @property boolean|null                            $button_targetblank      Open in new window.
 * @property string                                  $picture                 Path of a picture.
 * @property string                                  $picture_alt             Picture's attribute alt.
 * @property string                                  $picture_title           Picture's attribute title.
 * @property string                                  $picture_thumbnail       Path of a thumbnail picture.
 * @property string                                  $picture_thumbnail_alt   Thumbnail picture's attribute alt.
 * @property string                                  $picture_thumbnail_title Thumbnail picture's attribute title.
 * @property integer                                 $order                   Order.
 * @property boolean                                 $published               Is the slide published ?
 * @property-read \Illuminate\Support\Carbon         $created_at              Created date.
 * @property-read \Illuminate\Support\Carbon         $updated_at              Updated date.
 */
class Slide extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'title',
        'content',
        'button_display',
        'button_text',
        'button_url',
        'button_targetblank',
        'picture',
        'picture_alt',
        'picture_title',
        'picture_thumbnail',
        'picture_thumbnail_alt',
        'picture_thumbnail_title',
        'order',
        'published'
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string,string>
     */
    protected $casts = [
        'button_display'     => 'bool',
        'button_targetblank' => 'bool',
        'published'          => 'bool'
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted(): void
    {
        static::creating(function (self $model) {
            self::manageFields($model);
            $model->order = \intval(self::query()->max('order')) + 1;
        });
        static::updating(function (self $model) {
            self::manageFields($model);
        });
        static::updated(function (self $model) {
            FileStorageHelper::removeOldFile($model, 'picture');
            FileStorageHelper::removeOldFile($model, 'picture_thumbnail');
        });
        static::deleting(function (self $model) {
            self::assertNumberOfSlides($model, true);
        });
        static::deleted(function (self $model) {
            FileStorageHelper::removeFile($model, 'picture');
            FileStorageHelper::removeFile($model, 'picture_thumbnail');
        });
    }

    // * METHODS

    /**
     * Common methods function.
     *
     * @param self $model
     * @return void
     */
    private static function manageFields(self $model): void
    {
        self::assertTitleIsUnique($model->title, $model->id);
        self::assertNumberOfSlides($model);
        ToolboxHelper::assertNoInternalBoUrls($model->content, 'content');
        $model->content = clean($model->content);
        if ($model->button_url) {
            ToolboxHelper::assertNoInternalBoUrls($model->button_url, 'button_url');
            $model->button_url = clean($model->button_url);
        }
        $model->picture           = FileStorageHelper::storeFile($model, $model->picture, true);
        $model->picture_thumbnail = FileStorageHelper::storeFile($model, $model->picture_thumbnail, true);
    }

    /**
     * Asserts the number of slides in the slider.
     *
     * @param self    $model
     * @param boolean $isDeleting
     * @return void
     * @throws \Illuminate\Validation\ValidationException If there is less 1 or more than 4 slides.
     */
    private static function assertNumberOfSlides(self $model, bool $isDeleting = false): void
    {
        if (
            $isDeleting &&
            $model->published &&
            self::query()->where('published', true)->count() <= 1
        ) {
            throw ValidationException::withMessages(
                [trans('Minimum 1 slide doit être publiée, la slide n\'a pas été supprimée.')]
            );
        }
        if ($model->published !== $model->getOriginal('published')) {
            if (self::query()->where('published', true)->count() + 1 > 4 && $model->published) {
                $model->published = false;
                \session()->flash('info', \trans('Maximum 4 slides peuvent être publiées, la slide a été dépubliée.'));
            } elseif (self::query()->where('published', true)->count() <= 1 && !$model->published) {
                $model->published = true;
                \session()->flash('info', \trans('Minimum 1 slide doit être publiée, la slide a été publiée.'));
            }
        }
    }

    /**
     * Asserts using validation that the title is unique.
     *
     * @param string       $title
     * @param integer|null $id
     * @return void
     */
    private static function assertTitleIsUnique(string $title, ?int $id = null): void
    {
        $table = (new self())->getTable();
        ToolboxHelper::assertFieldIsUnique($table, 'title', $title, $id);
    }
}