<?php

namespace App\Http\Controllers\Admin\Inventory;

use App\Http\Controllers\Controller;
use App\Models\ApiOrderLog;
use App\Models\Product;
use Illuminate\Http\Request;

/**
 * AP-13: Übersicht der über die Partnercenter-API eingegangenen Bestell-Übertragungen.
 * Einträge mit fehlgeschlagener Produktzuordnung (unbekannte SKU) sind markiert;
 * das Modal zeigt den Inhalt der Übertragung je Position.
 */
class ApiOrderLogController extends Controller
{
    private const INDEX_LIMIT = 500;

    public function index(Request $request)
    {
        $limit = $request->query('all') ? null : self::INDEX_LIMIT;

        $logs = ApiOrderLog::query()
            ->with(['shoppingOrder', 'shoppingUser'])
            ->orderByDesc('id')
            ->when($limit !== null, fn ($query) => $query->limit($limit))
            ->get();

        $errorCount = ApiOrderLog::query()->where('has_errors', true)->count();

        // SKU-Konsistenz (Plan §4): doppelte WP-Nummern brechen die Zuordnung,
        // aktive Produkte ohne WP-Nummer können nie per API zugeordnet werden.
        $duplicateNumbers = Product::query()
            ->where('active', true)
            ->whereNotNull('wp_number')
            ->where('wp_number', '!=', 0)
            ->selectRaw('wp_number, COUNT(*) as sku_count')
            ->groupBy('wp_number')
            ->havingRaw('COUNT(*) > 1')
            ->pluck('wp_number');

        $duplicateSkuProducts = $duplicateNumbers->isEmpty()
            ? collect()
            : Product::query()
                ->where('active', true)
                ->whereIn('wp_number', $duplicateNumbers)
                ->orderBy('wp_number')
                ->orderBy('name')
                ->get(['id', 'name', 'wp_number']);

        $missingSkuProducts = Product::query()
            ->where('active', true)
            ->where(fn ($query) => $query->whereNull('wp_number')->orWhere('wp_number', 0))
            ->orderBy('name')
            ->get(['id', 'name']);

        return view('admin.inventory.api-orders.index', [
            'logs' => $logs,
            'listLimit' => $limit,
            'errorCount' => $errorCount,
            'duplicateSkuProducts' => $duplicateSkuProducts,
            'missingSkuProducts' => $missingSkuProducts,
        ]);
    }
}