<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Inventory extends Model
{
    /** @use HasFactory<\Database\Factories\InventoryFactory> */
    use HasFactory;

    protected $fillable = [
        'warehouse_id',
        'product_id',
        'quantity',
        'safety_stock',
        'location',
    ];

    public function warehouse(): \Illuminate\Database\Eloquent\Relations\BelongsTo
    {
        return $this->belongsTo(Warehouse::class);
    }

    public function product(): \Illuminate\Database\Eloquent\Relations\BelongsTo
    {
        return $this->belongsTo(Product::class);
    }

    public function transactions(): \Illuminate\Database\Eloquent\Relations\HasMany
    {
        return $this->hasMany(InventoryTransaction::class);
    }

    public function lastOutgoingTransaction()
    {
        return $this->hasOne(InventoryTransaction::class)->ofMany([
            'actual_time' => 'max',
            'id' => 'max',
        ], function ($query) {
            $query->where('quantity', '<', 0);
        });
    }

    public function lastIncomingTransaction()
    {
        return $this->hasOne(InventoryTransaction::class)->ofMany([
            'actual_time' => 'max',
            'id' => 'max',
        ], function ($query) {
            $query->where('quantity', '>', 0);
        });
    }
}