<?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;

class Slide extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    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'
    ];

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

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        static::creating(function (self $model) {
            if (count(self::get()) >= 4) {
                self::assertNumberOfSlides();
            }
            self::manageFields($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 () {
            if (1 >= count(self::get())) {
                self::assertNumberOfSlides();
            }
        });
        static::deleted(function (self $model) {
            FileStorageHelper::removeFile($model, 'picture');
            FileStorageHelper::removeFile($model, 'picture_thumbnail');
        });
    }

    // * METHODS

    /**
     * Undocumented function
     *
     * @param Model $model
     * @return void
     */
    private static function manageFields(Model $model)
    {
        self::assertTitleIsUnique($model->title, $model->id);
        ToolboxHelper::assertNoInternalBoUrls($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.
     *
     * @return void
     * @throws \Illuminate\Validation\ValidationException If there is less 1 or more than 4 slides.
     */
    private static function assertNumberOfSlides()
    {
        throw ValidationException::withMessages([
            'Opération impossible, minimum un et maximum quatre slides doivent être présentes.'
        ]);
    }

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