<?php

namespace App\Traits\Forms;

use App\Models\Outlet;
use App\Services\StockActivityLogService;
use Illuminate\Database\Eloquent\Model;

trait WithFormStockAdjustment
{
    public array $stock_adjustments = [];

    protected function loadStockAdjustments(Model $item): void
    {
        $this->stock_adjustments = [
            'outlet' => [],
        ];

        $user = auth()->user();
        $userOutletIds = $user->outlets->pluck('id')->toArray();

        $itemOutlets = $item->outlets()
            ->whereIn('outlets.id', $userOutletIds)
            ->withPivot('stock')
            ->get();

        foreach ($itemOutlets as $outlet) {
            $stock = $outlet->pivot->stock ?? 0;
            $this->stock_adjustments['outlet'][$outlet->id] = [
                'name' => $outlet->name,
                'stock' => $stock,
                'new_stock' => (string) $stock,
                'note' => '',
            ];
        }
    }

    protected function saveStockAdjustments(Model $item, string $itemType): void
    {
        $itemName = $item->name.($itemType === 'bottle' ? " ({$item->size}ml)" : '');

        if (isset($this->stock_adjustments['outlet'])) {
            foreach ($this->stock_adjustments['outlet'] as $id => $adj) {
                $newStock = (int) str_replace(['.', ','], '', (string) ($adj['new_stock'] ?: '0'));
                $oldStock = (int) $adj['stock'];

                if ($newStock === $oldStock) {
                    continue;
                }

                $outlet = Outlet::find($id);
                if ($outlet) {
                    $item->outlets()->syncWithoutDetaching([$id => ['stock' => $newStock]]);

                    StockActivityLogService::logOutlet(
                        logName: 'adjustment',
                        event: 'update',
                        description: "Penyesuaian manual untuk {$itemName}: berubah dari ".formatCurrencyNumber($oldStock).' menjadi '.formatCurrencyNumber($newStock).'. Catatan: '.($adj['note'] ?: '-'),
                        performedOn: $item,
                        outlet: $outlet,
                        quantityChange: $newStock - $oldStock,
                        previousStock: $oldStock,
                        newStock: $newStock,
                        extraProperties: [
                            'note' => $adj['note'],
                            'adjustment_type' => 'manual',
                            'item_type' => $itemType,
                            'item_id' => $item->id,
                        ]
                    );
                }
            }
        }
    }
}