<?php

namespace App\Models;

use App\Traits\HasCreatorAndUpdater;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Str;
use Kalnoy\Nestedset\NodeTrait;

class File extends Model
{
    use HasFactory, HasCreatorAndUpdater, NodeTrait, SoftDeletes; // adds node and recycle bin functionality to files

    // returns the user this file or folder belongs to
    public function user(): BelongsTo {
        return $this->belongsTo(User::class, 'created_by');
    }

    // returns the parent file or folder for this file or folder
    public function parent(): BelongsTo {
        return $this->belongsTo(File::class, 'parent_id');
    }

    // returns whether or not the current folder is a root-level folder
    public function isRoot() {
        // is there a parent_id for this folder?
        return $this->parent_id == null;
    }

    // returns simple boolean whether or not the passed userID is the creator of the file
    public function isOwner($userID): bool
    {
        return $this->created_by = $userID;
    }

    // additional bootstrapping on top of default Model model
    protected static function boot()
    {
        // start with parent Model
        parent::boot();

        // define new bootstrapping
        static::creating(function ($model) {
            // check for parent - if one exists, exit function
            if (!$model->parent) return;
            
            // if file or folder is NOT a root-level folder
            if (!$model->parent->isRoot()) {
                // path is a node off the parent path
                $model->path = $model->parent->path . '/';
            }
            // otherwise free-standing
            else $model->path = '';

            // append current file or folder name to path name
            $model->path = $model->path . Str::slug($model->name);
        });
    }
}