Invoice PAIN & CSV can be uploaded

app/Providers/FileWriteProvider.php

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+<?php
+
+namespace App\Providers;
+
+use Illuminate\Support\Facades\Storage;
+
+class FileWriteProvider {
+    public string $fileName;
+    public string $fileContent;
+
+    public function __construct(string $fileName, string $fileContent) {
+        $this->fileName = $fileName;
+        $this->fileContent = $fileContent;
+    }
+
+    public function writeToFile() {
+        Storage::disk('local')->put($this->fileName, $this->fileContent);
+    }
+}

app/Providers/InvoiceCsvFileProvider.php

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+<?php
+
+namespace App\Providers;
+
+use App\Models\Invoice;
+use App\Resources\InvoiceResource;
+
+class InvoiceCsvFileProvider {
+
+    /* @var Invoice[] */
+    private array $invoices;
+
+    public function __construct(array $invoices) {
+        $this->invoices = $invoices;
+    }
+
+    public function createCsvFileContent() : string
+    {
+        $csvArray[] = implode(
+            ',', [
+            '"Rechnungsnummer"',
+            '"Zahlungsgrund"',
+            '"Name"',
+            '"IBAN"',
+            '"Kontoinhaber*in"',
+            '"Betrag"',
+            '"Spende"',
+            '"Beleg ohne Auszahlung"',
+        ]);
+
+        foreach ($this->invoices as $invoice) {
+            $invoiceReadable = new InvoiceResource($invoice)->toArray();
+            $csvLine = implode(',', [
+                '"' . $invoiceReadable['invoiceNumber'] . '"',
+                '"' . $invoiceReadable['invoiceType'] . '"',
+                '"' . $invoiceReadable['contactName'] . '"',
+                '"' . $invoiceReadable['accountIban'] . '"',
+                '"' . $invoiceReadable['accountOwner'] . '"',
+                '"' . $invoiceReadable['amountPlain'] . '"',
+                '"' . $invoiceReadable['donation'] . '"',
+                '"' . $invoiceReadable['alreadyPaid'] . '"'
+            ]);
+
+            $csvArray[] = $csvLine;
+        }
+
+       return implode(PHP_EOL, $csvArray);
+    }
+}

app/Providers/PainFileProvider.php

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+<?php
+
+namespace App\Providers;
+
+use App\Models\Invoice;
+use DOMDocument;
+use Exception;
+
+class PainFileProvider {
+    public string $senderIban;
+    public string $senderName;
+    public string $senderBic;
+
+    /* @var Invoice[] */
+    public array $invoices;
+
+    public function __construct(string $senderIban, string $senderName, string $senderBic, array $invoices) {
+        $this->senderIban = $senderIban;
+        $this->senderName = $senderName;
+        $this->senderBic = $senderBic;
+        $this->invoices = $invoices;
+    }
+
+    public function createPainFileContent() : string {
+        $doc = new DOMDocument('1.0', 'UTF-8');
+        $doc->formatOutput = true;
+
+        $senderIban = str_replace(' ', '', $this->senderIban);
+        $senderBic = str_replace(' ', '', $this->senderBic);
+
+        // Root-Element
+        $document = $doc->createElement('Document');
+        $document->setAttribute('xmlns', 'urn:iso:std:iso:20022:tech:xsd:pain.001.001.03');
+        $document->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
+        $doc->appendChild($document);
+
+        // CstmrCdtTrfInitn
+        $cstmr_cdt_trf_initn = $doc->createElement('CstmrCdtTrfInitn');
+        $document->appendChild($cstmr_cdt_trf_initn);
+
+        // GrpHdr
+        $grp_hdr = $doc->createElement('GrpHdr');
+        $cstmr_cdt_trf_initn->appendChild($grp_hdr);
+
+        $grp_hdr->appendChild($doc->createElement('MsgId', uniqid('MSG')));
+        $grp_hdr->appendChild($doc->createElement('CreDtTm', date('c')));
+        $grp_hdr->appendChild($doc->createElement('NbOfTxs', count($this->invoices)));
+
+        $totalAmount = array_sum(array_column($this->invoices, 'amount'));
+        $grp_hdr->appendChild($doc->createElement('CtrlSum', number_format($totalAmount, 2, '.', '')));
+
+        $initg_pty = $doc->createElement('InitgPty');
+        $initg_pty->appendChild($doc->createElement('Nm', $this->senderName));
+        $grp_hdr->appendChild($initg_pty);
+
+        // PmtInf
+        $pmt_inf = $doc->createElement('PmtInf');
+        $cstmr_cdt_trf_initn->appendChild($pmt_inf);
+
+        $pmt_inf->appendChild($doc->createElement('PmtInfId', uniqid('PMT')));
+        $pmt_inf->appendChild($doc->createElement('PmtMtd', 'TRF'));
+        $pmt_inf->appendChild($doc->createElement('BtchBookg', 'false'));
+        $pmt_inf->appendChild($doc->createElement('NbOfTxs', count($this->invoices)));
+        $pmt_inf->appendChild($doc->createElement('CtrlSum', number_format($totalAmount, 2, '.', '')));
+
+        $pmt_tp_inf = $doc->createElement('PmtTpInf');
+        $svc_lvl = $doc->createElement('SvcLvl');
+        $svc_lvl->appendChild($doc->createElement('Cd', 'SEPA'));
+        $pmt_tp_inf->appendChild($svc_lvl);
+        $pmt_inf->appendChild($pmt_tp_inf);
+
+        $pmt_inf->appendChild($doc->createElement('ReqdExctnDt', date('Y-m-d', mktime(0))));
+
+        $dbtr = $doc->createElement('Dbtr');
+        $dbtr->appendChild($doc->createElement('Nm', $this->senderName));
+        $pmt_inf->appendChild($dbtr);
+
+        $dbtr_acct = $doc->createElement('DbtrAcct');
+        $id = $doc->createElement('Id');
+        $id->appendChild($doc->createElement('IBAN', $senderIban));
+        $dbtr_acct->appendChild($id);
+        $pmt_inf->appendChild($dbtr_acct);
+
+
+        $dbtr_agt = $doc->createElement('DbtrAgt');
+        $id = $doc->createElement('FinInstnId');
+        $id->appendChild($doc->createElement('BIC', $senderBic));
+        $dbtr_agt->appendChild($id);
+        $pmt_inf->appendChild($dbtr_agt);
+
+        foreach ($this->invoices as $index => $invoice) {
+            $cdt_trf_tx_inf = $doc->createElement('CdtTrfTxInf');
+
+            $pmt_id = $doc->createElement('PmtId');
+            $pmt_id->appendChild($doc->createElement('EndToEndId', uniqid('ET')));
+            $cdt_trf_tx_inf->appendChild($pmt_id);
+
+            $amt = $doc->createElement('Amt');
+            $instd_amt = $doc->createElement('InstdAmt', number_format($invoice['amount'], 2, '.', ''));
+            $instd_amt->setAttribute('Ccy', 'EUR');
+            $amt->appendChild($instd_amt);
+            $cdt_trf_tx_inf->appendChild($amt);
+
+            $cdtr = $doc->createElement('Cdtr');
+            $cdtr->appendChild($doc->createElement('Nm', $invoice['contact_bank_owner']));
+            $cdt_trf_tx_inf->appendChild($cdtr);
+
+            $cdtr_acct = $doc->createElement('CdtrAcct');
+            $cdtr_id = $doc->createElement('Id');
+            $cdtr_id->appendChild($doc->createElement('IBAN', str_replace(' ', '', $invoice['contact_bank_iban'])));
+            $cdtr_acct->appendChild($cdtr_id);
+            $cdt_trf_tx_inf->appendChild($cdtr_acct);
+
+            $rmt_inf = $doc->createElement('RmtInf');
+            $rmt_inf->appendChild($doc->createElement('Ustrd', 'Auslagenerstattung Rechnungsnummer ' . $invoice['invoice_number']));
+            $cdt_trf_tx_inf->appendChild($rmt_inf);
+
+            $pmt_inf->appendChild($cdt_trf_tx_inf);
+        }
+
+        $xml_content = $doc->saveXML();
+        if (false === $xml_content) {
+            throw new Exception('Failed to generate XML content.');
+        }
+        return $xml_content;
+    }
+}

app/Providers/PdfMergeProvider.php

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+<?php
+
+namespace App\Providers;
+
+use InvalidArgumentException;
+use RuntimeException;
+use setasign\Fpdi\Fpdi;
+
+class PdfMergeProvider {
+    protected array $files = [];
+
+    /**
+     * Fügt eine PDF-Datei zur Merge-Liste hinzu.
+     */
+    public function add(string $filePath): self
+    {
+        $this->files[] = $filePath;
+        return $this;
+    }
+
+    /**
+     * Führt alle hinzugefügten PDFs zusammen und speichert sie.
+     */
+    public function merge(string $outputPath): void
+    {
+        if (empty($this->files)) {
+            throw new RuntimeException("No PDF files added for merging.");
+        }
+
+        $pdf = new FPDI();
+
+        foreach ($this->files as $file) {
+            $pageCount = $pdf->setSourceFile($file);
+
+            for ($page = 1; $page <= $pageCount; $page++) {
+                $tpl = $pdf->importPage($page);
+                $size = $pdf->getTemplateSize($tpl);
+
+                $pdf->AddPage($size['orientation'], [$size['width'], $size['height']]);
+                $pdf->useTemplate($tpl);
+            }
+        }
+
+        $pdf->Output('F', $outputPath);
+    }
+}

app/Providers/WebDavProvider.php

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+<?php
+
+namespace App\Providers;
+use WebDav\WebDav\WebDavClient;
+class WebDavProvider {
+    public const INVOICE_PREFIX = 'Abrechnungen ';
+
+    private WebDavClient $webDavClient;
+    private string $workingDirectory = '/';
+
+    public function __construct($workingDirectory) {
+        $this->webDavClient = new WebDavClient(env('WEBDAV_HOST'), env('WEBDAV_USER'), env('WEBDAV_PASS'));
+        $this->workingDirectory = $workingDirectory;
+    }
+
+    public function uploadFile(string $fileName) {
+        $baseDir = storage_path('app/private/');
+
+        $this->webDavClient->upload_file($baseDir . $fileName, $this->workingDirectory . '/'.
+        basename($fileName)
+
+
+
+        );
+    }
+
+}

app/Providers/ZipArchiveFileProvider.php

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+<?php
+
+namespace App\Providers;
+
+use App\Models\Tenant;
+use ZipArchive;
+
+class ZipArchiveFileProvider {
+    private ZipArchive $zipArchive;
+
+    public function __construct(string $filename) {
+        $this->zipArchive = new ZipArchive();
+        $this->zipArchive->open(storage_path('app/private/' . $filename), ZipArchive::CREATE | ZipArchive::OVERWRITE);
+    }
+
+    public function addFile(string $filename) {
+        $filename = storage_path('app/private/' . $filename);
+        if (!file_exists($filename)) {
+            dd($filename);
+        }
+        $this->zipArchive->addFile($filename, basename($filename));
+    }
+
+    public function create() : bool {
+        $this->zipArchive->close();
+        return true;
+    }
+
+}