Unexpected error occurred: Invalid PIH for Simplified Invoice

[tomforjerry23]

Hello Dear,
How are you I hope you are doing well. I share you my all code and error issues. please help me out how to solve this problem.

I want to know that for both Standard and Simplified Invoice we have to provide records in AccountingCustomerParty and AccountingSupplierParty.
Do we have to submit all invoices for CSID and Production CSID?
Do we have to provide the original AccountingSupplierParty information to create CSID and Production CSID or will it work?

{status: false, st: 0,…} message : "Unexpected error occurred: Invalid PIH for Simplified Invoice: Expected kiV7BL..., Got lsDp9AGhJk88svLsbjyDZPFYJbzV3NTyukExvqqM3v8=" results : {STDSI: {status: "CLEARED", hash: "91cPg/pYJrKGZinqB27yO1XdCFAEqjww+B9fr6hTqNs=",…},…} STDCN : {status: "CLEARED", hash: "kWuG8cn3Lq8Fk20pzAYIIcDMz8esJXgRvRKomgBSkLs=",…} hash : "kWuG8cn3Lq8Fk20pzAYIIcDMz8esJXgRvRKomgBSkLs=" status : "CLEARED" uuid : "8149be23-5c4c-4d6a-813c-28aa70e4531e" STDDN : {status: "CLEARED", hash: "lsDp9AGhJk88svLsbjyDZPFYJbzV3NTyukExvqqM3v8=",…} hash : "lsDp9AGhJk88svLsbjyDZPFYJbzV3NTyukExvqqM3v8=" status : "CLEARED" uuid : "61c1b749-3b05-41c1-a3d2-e82a511964bf" STDSI : {status: "CLEARED", hash: "91cPg/pYJrKGZinqB27yO1XdCFAEqjww+B9fr6hTqNs=",…} hash : "91cPg/pYJrKGZinqB27yO1XdCFAEqjww+B9fr6hTqNs=" status : "CLEARED" uuid : "5c6b934e-c53b-45fb-bb4b-306fbf7b460b" st : 0 status : false

My code is

`

     public function invoice_type_ajax()
     {
     try {
             if (!$this->input->post() || !$this->input->is_ajax_request()) {
            
            error_log("Invalid request: Not a POST or AJAX request");
            http_response_code(400);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "Invalid request: Must be a POST AJAX request"
            ]);
            return;
        }

        date_default_timezone_set('Asia/Riyadh');

        require_once (INVOICE_ZATCA_LIBRARY_PATH . '/CsrGenerator.php');
        require_once (INVOICE_ZATCA_LIBRARY_PATH . '/ApiHelper.php');
        require_once (INVOICE_ZATCA_LIBRARY_PATH . '/InvoiceHelper.php');
        require_once (INVOICE_ZATCA_LIBRARY_PATH . '/EInvoiceSigner.php');

        $invoiceMode       = trim($this->input->post('invoiceMode'));
        $vatNumber         = trim($this->input->post('vatNumber'));
        $company           = trim($this->input->post('company'));
        $business_category = trim($this->input->post('business_category'));
        $street            = trim($this->input->post('street'));
        $building          = trim($this->input->post('building'));
        $city              = trim($this->input->post('city'));
        $country           = trim($this->input->post('country'));
        $OTP               = trim($this->input->post('invoiceOtp'));

        if (empty($invoiceMode) || empty($vatNumber) || empty($company) || empty($street) || empty($city) || empty($country) || empty($OTP)) {
            error_log("Missing required POST parameters");
            http_response_code(400);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "Missing required POST parameters"
            ]);
            return;
        }

        switch ($invoiceMode) {
            case 'NonProduction': $apipath = 'developer-portal'; break;
            case 'Simulation':    $apipath = 'simulation'; break;
            case 'Production':    $apipath = 'core'; break;
            default:
                error_log("Invalid invoiceMode: $invoiceMode");
                http_response_code(400);
                echo json_encode([
                    'status'  => false,
                    'st'      => 0,
                    'message' => "Invalid invoiceMode: $invoiceMode"
                ]);
                return;
        }

        $commonName = "TST-886431145-" . $vatNumber;
        $address    = $street;
        $uuidGen    = $this->generateUUIDv4();

        $config = [
            "csr.common.name"               => $commonName,
            "csr.serial.number"             => "1-TST|2-TST|3-" . $uuidGen,
            "csr.organization.identifier"   => $vatNumber,
            "csr.organization.unit.name"    => $city,
            "csr.organization.name"         => $company,
            "csr.country.name"              => $country,
            "csr.invoice.type"              => "1100",
            "csr.location.address"          => $address,
            "csr.industry.business.category"=> $business_category
        ];

        $certInfo = [
            "environmentType"           => $invoiceMode,
            "csr"                       => "",
            "privateKey"                => "",
            "OTP"                       => $OTP,
            "ccsid_requestID"           => "",
            "ccsid_binarySecurityToken" => "",
            "ccsid_secret"              => "",
            "pcsid_requestID"           => "",
            "pcsid_binarySecurityToken" => "",
            "pcsid_secret"              => "",
            "lastICV"                   => "0",
            "lastInvoiceHash"           => "NWZlY2ViNjZmZmM4NmYzOGQ5NTI3ODZjNmQ2OTZjNzljMmRiYzIzOWRkNGU5MWI0NjcyOWQ3M2EyN2ZiNTdlOQ==",
            "complianceCsidUrl"         => "https://gw-fatoora.zatca.gov.sa/e-invoicing/".$apipath."/compliance",
            "complianceChecksUrl"       => "https://gw-fatoora.zatca.gov.sa/e-invoicing/".$apipath."/compliance/invoices",
            "productionCsidUrl"         => "https://gw-fatoora.zatca.gov.sa/e-invoicing/".$apipath."/production/csids",
            "reportingUrl"              => "https://gw-fatoora.zatca.gov.sa/e-invoicing/".$apipath."/invoices/reporting/single",
            "clearanceUrl"              => "https://gw-fatoora.zatca.gov.sa/e-invoicing/".$apipath."/invoices/clearance/single",
        ];
        
      
        // Step 1: Generate CSR
        $csrGen = new CsrGenerator($config, $invoiceMode);
        list($privateKeyContent, $csrBase64) = $csrGen->generateCsr();
        $certInfo["privateKey"] = $privateKeyContent;
        $certInfo["csr"]        = $csrBase64;
        
        
        if (!ApiHelper::saveJsonToFile(ROOT_PATH . "certificate/certificateInfo.json", $certInfo)) {
            error_log("Failed to save certificateInfo.json after CSR generation");
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "Failed to save certificateInfo.json after CSR generation"
            ]);
            return;
        }
        

        // Step 2: Get Compliance CSID
        $response = ApiHelper::complianceCSID($certInfo);
        $jsonDecodedResponse = json_decode($response, true);

        if (isset($jsonDecodedResponse['errors'][0])) {
            $error = $jsonDecodedResponse['errors'][0];
            error_log("Compliance CSID error: " . $error['message']);
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 1,
                'code'    => $error['code'],
                'message' => $error['message'],
                'response'=> $jsonDecodedResponse
            ]);
            return;
        }

        if (isset($jsonDecodedResponse['requestID'])) {
            $certInfo["ccsid_requestID"]           = $jsonDecodedResponse["requestID"];
            $certInfo["ccsid_binarySecurityToken"] = $jsonDecodedResponse["binarySecurityToken"];
            $certInfo["ccsid_secret"]              = $jsonDecodedResponse["secret"];
            if (!ApiHelper::saveJsonToFile(ROOT_PATH . "certificate/certificateInfo.json", $certInfo)) {
                error_log("Failed to save certificateInfo.json after Compliance CSID");
                http_response_code(500);
                echo json_encode([
                    'status'  => false,
                    'st'      => 0,
                    'message' => "Failed to save certificateInfo.json after Compliance CSID"
                ]);
                return;
            }
        } else {
            error_log("Compliance CSID failed: No requestID in response");
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "Compliance CSID failed: No requestID in response",
                'response'=> $jsonDecodedResponse
            ]);
            return;
        }
        

        // Step 3: Send 4 Compliance Invoices
        $xmlTemplatePath = INVOICE_ZATCA_LIBRARY_PATH . "/Resources/Invoice.xml";
        InvoiceHelper::updateCompanyIDInXmlTemplate($xmlTemplatePath, $vatNumber);

        $baseDocument = new DOMDocument();
        $baseDocument->preserveWhiteSpace = true;
        if (!file_exists($xmlTemplatePath)) {
            error_log("XML template not found: $xmlTemplatePath");
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "XML template not found: $xmlTemplatePath"
            ]);
            return;
        }
        $baseDocument->load($xmlTemplatePath);

        $privateKey = $certInfo["privateKey"];
        $x509CertificateContent = base64_decode($certInfo["ccsid_binarySecurityToken"], true);
        if ($x509CertificateContent === false || empty($x509CertificateContent)) {
            error_log("Invalid or empty ccsid_binarySecurityToken: " . substr($certInfo["ccsid_binarySecurityToken"], 0, 50) . "...");
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => "Invalid or empty Compliance CSID certificate"
            ]);
            return;
        }

        $complianceResults = [];
        $icv = (int)$certInfo["lastICV"];
        
        $pih = "NWZlY2ViNjZmZmM4NmYzOGQ5NTI3ODZjNmQ2OTZjNzljMmRiYzIzOWRkNGU5MWI0NjcyOWQ3M2EyN2ZiNTdlOQ==";
        
        date_default_timezone_set('Asia/Riyadh');

        
        $documentTypes = [
            ["STDSI", "388", "Standard Invoice",""],
            ["STDCN", "383", "Standard CreditNote","InstructionNotes for Standard CreditNote"],
            ["STDDN", "381", "Standard DebitNote" , "InstructionNotes for Standard DebitNote"],
            ["SIMSI", "388", "Simplified Invoice",""],
            ["SIMCN", "383", "Simplified CreditNote", "InstructionNotes for Simplified CreditNote"],
            ["SIMDN", "381", "Simplified DebitNote", "InstructionNotes for Simplified DebitNote"]
        ];
        

        foreach ($documentTypes as $docType) {
            list($prefix, $typeCode, $description, $instructionNote) = $docType;
            $icv++;
            $isSimplified = strpos($prefix, "SIM") === 0;

            $invoiceUUID = $this->generateUUIDv4();
            $newInvoiceID = 'INV-' . date('YmdHis') . '-' . rand(1000, 9999);
            error_log("Generating $description: ID=$newInvoiceID, UUID=$invoiceUUID, PIH=$pih, ICV=$icv");

            if ($prefix === "SIMSI" && $pih !== "kiV7BL02Jj64vWr/xEv9mZ/77BLOMYVEQb49ly8PJ7s=") {
                error_log("Invalid PIH for SIMSI: Expected kiV7BL..., Got $pih");
                throw new Exception("Invalid PIH for Simplified Invoice: Expected kiV7BL..., Got $pih");
            }
            if ($prefix === "SIMSI" && $icv !== 4) {
                error_log("Invalid ICV for SIMSI: Expected 4, Got $icv");
                throw new Exception("Invalid ICV for Simplified Invoice: Expected 4, Got $icv");
            }

            $baseDocument = new DOMDocument();
            $baseDocument->preserveWhiteSpace = true;
            if (!file_exists($xmlTemplatePath)) {
                error_log("XML template not found: $xmlTemplatePath");
                throw new Exception("XML template not found: $xmlTemplatePath");
            }
            $baseDocument->load($xmlTemplatePath);

            $newDoc = InvoiceHelper::ModifyXml($baseDocument, $newInvoiceID, $isSimplified ? "0200000" : "0100000", $typeCode, $icv, $pih, $instructionNote);
            
            
            $xmlFilePath = ROOT_PATH . "certificate/logs/f{$prefix}_" . date('YmdHis') . ".xml";
            if ($newDoc->save($xmlFilePath) === false) {
                error_log("Failed to save XML for $description to $xmlFilePath");
                throw new Exception("Failed to save XML for $description: $xmlFilePath");
            }
            error_log("Saved XML for $description to $xmlFilePath");

            $jsonPayload = EInvoiceSigner::GetRequestApi($newDoc, $x509CertificateContent, $privateKey, true);
            error_log("Payload for $description: $jsonPayload");

            $response = ApiHelper::complianceChecks($certInfo, $jsonPayload);
            $jsonDecodedResponse = json_decode($response, true);
            error_log("Response for $description: " . json_encode($jsonDecodedResponse));

            if (isset($jsonDecodedResponse['errors'][0])) {
                $error = $jsonDecodedResponse['errors'][0];
                if ($error['code'] === "Submitted before") {
                    error_log("Duplicate submission for $description (UUID: $invoiceUUID, ID: $newInvoiceID, Hash: " . json_decode($jsonPayload, true)["invoiceHash"] . ")");
                    http_response_code(400);
                    echo json_encode([
                        'status'  => false,
                        'st'      => 3,
                        'code'    => $error['code'],
                        'message' => "Duplicate submission for $description. Verify status in ZATCA portal (UUID: $invoiceUUID, ID: $newInvoiceID).",
                        'response'=> $jsonDecodedResponse,
                        'results' => $complianceResults
                    ]);
                    return;
                }

                error_log("Compliance error for $description: " . $error['message']);
                http_response_code(500);
                echo json_encode([
                    'status'  => false,
                    'st'      => 1,
                    'code'    => $error['code'],
                    'message' => $error['message'],
                    'response'=> $jsonDecodedResponse,
                    'results' => $complianceResults
                ]);
                return;
            }

            $status = $isSimplified
                ? ($jsonDecodedResponse["reportingStatus"] ?? null)
                : ($jsonDecodedResponse["clearanceStatus"] ?? null);

            if ($status === "CLEARED" || $status === "REPORTED") {
                $jsonPayloadDecoded = json_decode($jsonPayload, true);
                $pih = $jsonPayloadDecoded["invoiceHash"];
                $complianceResults[$prefix] = ["status" => $status, "hash" => $pih, "uuid" => $invoiceUUID];
                $certInfo["lastICV"] = (string)$icv;
                $certInfo["lastInvoiceHash"] = $pih;
                if (!ApiHelper::saveJsonToFile(ROOT_PATH . "certificate/certificateInfo.json", $certInfo)) {
                    error_log("Failed to save certificateInfo.json");
                    throw new Exception("Failed to save certificateInfo.json");
                }
            } else {
                error_log("Compliance failed for $description: Invalid status $status");
                http_response_code(500);
                echo json_encode([
                    'status'  => false,
                    'st'      => 2,
                    'message' => "Compliance failed for $description",
                    'response'=> $jsonDecodedResponse,
                    'results' => $complianceResults
                ]);
                return;
            }
        }

        // Step 4: Get Production CSID
        $response = ApiHelper::productionCSID($certInfo);
        $jsonDecodedResponse = json_decode($response, true);

        if (isset($jsonDecodedResponse['errors'][0])) {
            $error = $jsonDecodedResponse['errors'][0];
            error_log("Production CSID error: " . $error['message']);
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 1,
                'code'    => $error['code'],
                'message' => $error['message'],
                'response'=> $jsonDecodedResponse
            ]);
            return;
        }

        if (isset($jsonDecodedResponse["requestID"])) {
            $certInfo["pcsid_requestID"]           = $jsonDecodedResponse["requestID"];
            $certInfo["pcsid_binarySecurityToken"] = $jsonDecodedResponse["binarySecurityToken"];
            $certInfo["pcsid_secret"]              = $jsonDecodedResponse["secret"];
            if (!ApiHelper::saveJsonToFile(ROOT_PATH . "certificate/certificateInfo.json", $certInfo)) {
                error_log("Failed to save certificateInfo.json after Production CSID");
                http_response_code(500);
                echo json_encode([
                    'status'  => false,
                    'st'      => 0,
                    'message' => "Failed to save certificateInfo.json after Production CSID"
                ]);
                return;
            }

            echo json_encode([
                'status'  => true,
                'message' => 'Production CSID generated successfully',
                'response'=> $jsonDecodedResponse
            ]);
        } else {
            error_log("Production CSID failed: No requestID in response");
            http_response_code(500);
            echo json_encode([
                'status'  => false,
                'st'      => 0,
                'message' => 'Production CSID failed: No requestID in response',
                'response'=> $jsonDecodedResponse
            ]);
        }
    } catch (Exception $e) {
        error_log("Unexpected error in invoice_type_ajax: " . $e->getMessage() . " at " . $e->getFile() . ":" . $e->getLine());
        http_response_code(500);
        echo json_encode([
            'status'  => false,
            'st'      => 0,
            'message' => "Unexpected error occurred: " . $e->getMessage(),
            'results' => $complianceResults ?? []
        ]);
    }
}
`