<?php

namespace App\Models;

use App\Enums\TypeEnum;
use App\Lib\Helpers\ToolboxHelper;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

/**
 * @property integer $id
 * @property integer $uuid
 * @property string $title
 * @property TypeEnum $type
 * @property integer $directory_id
 * @property integer $document_id
 * @property string $path
 * @property LangEnum $lang
 * @property boolean $status
 * @property integer $order
 */
class Document extends Model
{
    use HasFactory;

    /**
     * Fillable;
     *
     * @var string[]
     */
    protected $fillable = [
        'uuid',
        'title',
        'type',
        'directory_id',
        'document_id',
        'path',
        'lang',
        'status',
        'order',
    ];

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

    /**
     * Map attribute names to enum classes.
     *
     * @var array
     */
    protected $enumCasts = [
        'lang' => LangEnum::class,
        'type' => TypeEnum::class,
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        static::creating(function (self $model) {
            $model->uuid = Str::uuid();
            self::assertFieldIsUnique('title', $model->title);
            self::setOrder($model);
        });
        static::updating(function (self $model) {
            $path = \ltrim(\urldecode("docs/" . $model->getOriginal('uuid') . $model->getOriginal('type')), '/');
            if (Storage::disk('public')->exists($path)) {
                Storage::disk('public')->delete($path);
            }
        });
        static::deleting(function (self $model) {
            self::removeDocument($model);
        });
    }

    // * METHODS

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

    /**
     * Set order after the last element of the list.
     *
     * @param \Illuminate\Database\Eloquent\Model $model
     * @return void
     */
    private static function setOrder(Model $model): void
    {
        $model->order = \intval(self::query()->max('order')) + 1;
    }

    /**
     * Set order after the last element of the list.
     *
     * @param \Illuminate\Database\Eloquent\Model $model
     * @return void
     */
    public static function removeDocument(Model $model): void
    {
        $path = \ltrim(\urldecode("storage/docs/{$model->uuid}.{$model->type}"), '/');
        if (\strpos($path, 'storage') !== 0) {
            return;
        }
        $path = ToolboxHelper::mbReplace('storage/', '', $path);
        if (Storage::disk('public')->exists($path)) {
            Storage::disk('public')->delete($path);
        }
    }

    // * RELATIONSHIPS

    /**
     * One To Many Relationship Method.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function directory()
    {
        return $this->belongsTo(Directory::class, 'directory_id');
    }

    /**
     * One To Many Relationship Method.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function parentDocument()
    {
        return $this->belongsTo(Document::class, 'document_id');
    }

    /**
     * Has Many Relationship Method.
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function children()
    {
        return $this->hasMany(Document::class, 'document_id');
    }

    /**
     * MorphedByMany appusers relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\MorphedByMany
     */
    public function appusers()
    {
        return $this->morphedByMany(AppUser::class, 'taggable');
    }

    /**
     * MorphToMany tags relation.
     *
     * @return \Illuminate\Database\Eloquent\Relations\MorphToMany
     */
    public function tags()
    {
        return $this->morphToMany(Tag::class, 'taggable');
    }
}