<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class StockPosition extends Model
{
    protected $table = 'stock_position';
    protected $primaryKey = 'position_id';
    public $timestamps = true;

    protected $fillable = [
        'position_symbol',
        'position_name',
        'shelf_id',
        'capacity',
        'temporary'
    ];

    protected $appends = [
        'storage_address',
    ];

    public function getStorageAddressAttribute(): string
    {
        // calls your existing method, which will
        // loadMissing the relations if needed
        return $this->storageAddress();
    }

    public function shelf()
    {
        return $this->belongsTo(StockShelf::class, 'shelf_id');
    }

    public function sections()
    {
        return $this->hasMany(StockSection::class, 'position_id', 'position_id');
    }


    public function storageAddress(): string
    {
        // eager-load the whole hierarchy if not already
        $this->loadMissing('shelf.rack.line.room');


        $shelf = $this->shelf;
        $rack  = $shelf->rack;
        $line  = $rack->line;
        $room  = $line->room;

        return sprintf(
            '%s-%s-%s-%s-%s',
            $room->room_symbol,
            $line->line_symbol,
            $rack->rack_symbol,
            $shelf->shelf_symbol,
            $this->position_symbol
        );

    }
}