<?php

namespace App\Traits\Order;

use App\Models\Bottle;
use App\Models\Perfume;
use App\Models\Product;

trait WithUpdateStock
{
    public function increaseOutletStock($outlet, $item)
    {
        $quantity = $item->quantity;

        switch ($item->orderable_type) {
            case Perfume::class:
                $relation = 'perfumes';
                break;
            case Product::class:
                $relation = 'products';
                break;
            case Bottle::class:
                $relation = 'bottles';
                break;
            default:
                return;
        }

        $existing = $outlet->{$relation}()->withPivot('stock')->where("{$relation}.id", $item->orderable_id)->first();

        if ($existing) {
            $currentStock = $existing->pivot->stock ?? 0;
            $outlet->{$relation}()->updateExistingPivot($item->orderable_id, [
                'stock' => $currentStock + $quantity,
            ]);
        } else {
            $outlet->{$relation}()->attach($item->orderable_id, [
                'stock' => $quantity,
            ]);
        }

        activity('Order')
            ->performedOn($item->orderable)
            ->causedBy(auth()->user())
            ->withProperties([
                'orderable_id' => $item->orderable_id,
                'orderable_type' => $item->orderable_type,
                'outlet_id' => $outlet->id,
                'quantity_change' => $quantity,
                'previous_stock' => $currentStock,
                'new_stock' => $currentStock + $quantity,
                'purchase_id' => $item->purchase_id ?? null,
            ])
            ->event('Menambah')
            ->log('Stok '.$item->orderable->name.' di '.$outlet->name.' bertambah '.currency($quantity));
    }

    public function decreaseOutletStock($outlet, $item)
    {
        $quantity = $item->quantity;

        switch ($item->orderable_type) {
            case Perfume::class:
                $relation = 'perfumes';
                break;
            case Product::class:
                $relation = 'products';
                break;
            case Bottle::class:
                $relation = 'bottles';
                break;
            default:
                return;
        }

        $existing = $outlet->{$relation}()
            ->withPivot('stock')
            ->where("{$relation}.id", $item->orderable_id)
            ->lockForUpdate()
            ->first();

        if (! $existing) {
            return ['status' => false, 'message' => "Produk {$item->orderable->name} tidak ditemukan di {$outlet->name}."];
        }

        $currentStock = $existing->pivot->stock ?? 0;

        if ($currentStock < $quantity) {
            return ['status' => false, 'message' => "Stok produk {$item->orderable->name} tidak mencukupi. Tersisa {$currentStock}, diminta {$quantity}. Silakan hubungi Administrator."];
        }

        $newStock = $currentStock - $quantity;

        $outlet->{$relation}()->updateExistingPivot($item->orderable_id, [
            'stock' => $newStock,
        ]);

        activity('Order')
            ->performedOn($item->orderable)
            ->causedBy(auth()->user())
            ->withProperties([
                'orderable_id' => $item->orderable_id,
                'orderable_type' => $item->orderable_type,
                'outlet_id' => $outlet->id,
                'quantity_change' => $quantity,
                'previous_stock' => $currentStock,
                'new_stock' => $currentStock - $quantity,
                'purchase_id' => $item->purchase_id ?? null,
            ])
            ->event('Mengurangi')
            ->log('Stok '.$item->orderable->name.' di '.$outlet->name.' berkurang '.currency($quantity));
    }
}