project/app/Http/Controllers/Api/IncomingController.php

<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Incoming;
use App\Models\Incomingitem;
use App\Models\Incomingtax;
use App\Models\Supplier;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;

class IncomingController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index($from = null, $end = null): JsonResponse
    {
        return response()->json(Incoming::whereBetween('issue_date', [$from, $end])->with(['supplier'])->orderBy('issue_date', 'desc')->get());
    }

    /**
     * Process an upload file for the resource.
     */
    public function upload(Request $request): JsonResponse
    {
        $xmlString = base64_decode(preg_replace('#^data:text/\w+;base64,#i', '', $request->uploadFile));
        $reader = new \App\XmlReader($xmlString);
        $supplierData = $reader->supplier();
        $incomingData = $reader->incoming();
        $itemsData = $reader->items();
        $taxesData = $reader->taxes();

        $supplier = Supplier::where('email', '=', $supplierData['email'])->firstOrNew($supplierData);
        $supplier->save();

        $incomingData['supplier_id'] = $supplier->id;

        $incoming = new Incoming($incomingData);
        $incoming->save();

        foreach ($itemsData as $item) {
            $item['incoming_id'] = $incoming->id;
            $incomingItem = new Incomingitem($item);
            $incomingItem->save();
        }

        foreach ($taxesData as $tax) {
            $tax['incoming_id'] = $incoming->id;
            $incomingTax = new Incomingtax($tax);
            $incomingTax->save();
        }

        return response()->json($incoming);
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): JsonResponse
    {
        $supplierData = $request->validate([
            'supplier.name' => 'required|string',
            'supplier.registration_name' => 'nullable|string',
            'supplier.email' => 'nullable|email',
            'supplier.address' => 'nullable|string',
            'supplier.city' => 'nullable|string',
            'supplier.zip' => 'nullable|string',
            'supplier.country_code' => 'nullable|string',
            'supplier.tax_fc' => 'nullable|string',
            'supplier.tax_vat' => 'nullable|string',
            'supplier.contact_name' => 'nullable|string',
            'supplier.contact_phone' => 'nullable|string',
            'supplier.contact_email' => 'nullable|string',
        ]);

        $supplier = Supplier::where('email', '=', $supplierData['supplier']['email'])->firstOrNew($supplierData['supplier']);
        $supplier->save();

        $incomingData = $request->validate([
            'incoming.invoice_number' => 'required|string',
            'incoming.issue_date' => 'required|date',
            'incoming.due_date' => 'nullable|date',
            'incoming.invoice_type_code' => 'required|string',
            'incoming.currency_code' => 'required|string',
            'incoming.net' => 'required|numeric',
            'incoming.gross' => 'required|numeric',
            'incoming.tax' => 'required|numeric',
            'incoming.pay_date' => 'nullable|date',
            'incoming.pay_name' => 'nullable|string',
            'incoming.pay_bic' => 'nullable|string',
            'incoming.pay_iban' => 'nullable|string',
        ]);

        $incomingData['incoming']['supplier_id'] = $supplier->id;
        $incoming = new Incoming($incomingData['incoming']);
        $incoming->save();

        $taxesData = $request->validate([
            'taxes.*.taxable_amount' => 'required|numeric',
            'taxes.*.amount' => 'required|numeric',
            'taxes.*.percentage' => 'required|numeric',
            'taxes.*.currency' => 'required|string',
        ]);

        $incoming->taxes()->createMany($taxesData['taxes']);

        return response()->json($supplierData['supplier']);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Incoming $incoming): JsonResponse
    {
        $incomingData = $request->validate([
            'incoming.invoice_number' => 'required|string',
            'incoming.issue_date' => 'required|date',
            'incoming.due_date' => 'nullable|date',
            'incoming.invoice_type_code' => 'required|string',
            'incoming.currency_code' => 'required|string',
            'incoming.net' => 'required|numeric',
            'incoming.gross' => 'required|numeric',
            'incoming.tax' => 'required|numeric',
            'incoming.pay_date' => 'nullable|date',
            'incoming.pay_name' => 'nullable|string',
            'incoming.pay_bic' => 'nullable|string',
            'incoming.pay_iban' => 'nullable|string',
        ]);

        $incoming->update($incomingData['incoming']);

        $supplierData = $request->validate([
            'supplier.name' => 'required|string',
            'supplier.registration_name' => 'nullable|string',
            'supplier.email' => 'nullable|email',
            'supplier.address' => 'nullable|string',
            'supplier.city' => 'nullable|string',
            'supplier.zip' => 'nullable|string',
            'supplier.country_code' => 'nullable|string',
            'supplier.tax_fc' => 'nullable|string',
            'supplier.tax_vat' => 'nullable|string',
            'supplier.contact_name' => 'nullable|string',
            'supplier.contact_phone' => 'nullable|string',
            'supplier.contact_email' => 'nullable|string',
        ]);

        $incoming->supplier()->update($supplierData['supplier']);

        $itemsData = $request->validate([
            'items.*.name' => 'required|string',
            'items.*.article_number' => 'nullable|string',
            'items.*.description' => 'nullable|string',
            'items.*.amount' => 'required|numeric',
            'items.*.discount' => 'nullable|numeric',
            'items.*.tax' => 'required|numeric',
            'items.*.price' => 'required|numeric',
            'items.*.total' => 'required|numeric',
        ]);

        $incoming->items()->delete();

        if (!empty($itemsData)) {
            $incoming->items()->createMany($itemsData['items']);
        }

        $taxesData = $request->validate([
            'taxes.*.taxable_amount' => 'required|numeric',
            'taxes.*.amount' => 'required|numeric',
            'taxes.*.percentage' => 'required|numeric',
            'taxes.*.currency' => 'required|string',
        ]);

        $incoming->taxes()->delete();
        $incoming->taxes()->createMany($taxesData['taxes']);

        return response()->json($incoming);
    }
}