<?php

namespace App\Http\Controllers;

use App\Models\StockItem;
use App\Models\User;
use App\Models\Warehouse;
use App\Services\WarehouseAvailability;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;
use Inertia\Inertia;
use Symfony\Component\HttpFoundation\Response;

class WarehouseAvailabilityController extends Controller
{
    public function index(Request $request, WarehouseAvailability $availability): Response
    {
        $actor = $request->user('web');
        abort_unless($actor instanceof User && $actor->hasFunctions(['admin', 'warehouse', 'procurement', 'finance', 'warehouse_availability_read']), 403);

        return DB::transaction(function () use ($request, $actor, $availability) {
            if (DB::getDriverName() === 'pgsql' && DB::transactionLevel() === 1) {
                DB::statement('SET TRANSACTION ISOLATION LEVEL REPEATABLE READ READ ONLY');
            }
            $filters = $request->validate(['warehouse_id' => ['nullable', 'integer', Rule::exists('warehouses', 'id')->where('tenant_id', $actor->tenant_id)],
                'search' => 'nullable|string|max:100', 'page' => 'nullable|integer|min:1|max:100000']);
            $warehouse = empty($filters['warehouse_id']) ? null : Warehouse::query()->whereKey($filters['warehouse_id'])->firstOrFail();
            $planning = $actor->hasFunctions(['admin', 'supply_read', 'supply_reserve', 'warehouse_availability_read']);
            $query = StockItem::query();
            if (! empty($filters['search'])) {
                $query->where(fn ($q) => $q->whereLike('code', '%'.$filters['search'].'%')->orWhereLike('name', '%'.$filters['search'].'%'));
            }
            $page = $warehouse === null ? null : $query->orderBy('code')->paginate(25)->withQueryString()->through(fn ($item) => $availability->row($item, $warehouse, $planning));
            $response = Inertia::render('stock/availability', ['filters' => $filters, 'planningVisible' => $planning, 'rows' => $page,
                'warehouse' => $warehouse?->only(['id', 'code', 'name']), 'checkedAt' => now()->toIso8601String(),
                'warehouses' => Warehouse::query()->orderBy('code')->get(['id', 'code', 'name'])])->toResponse($request);
            $response->headers->set('Cache-Control', 'private, no-store, max-age=0');

            return $response;
        });
    }
}