175 lines
7.7 KiB
OpenEdge ABL
175 lines
7.7 KiB
OpenEdge ABL
public with sharing class PDFGenerationProxy {
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@AuraEnabled
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public static Map<String, Object> generatePDFFromHTML(String htmlContent, String pageSize) {
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try {
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// Validate HTML content
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if (String.isBlank(htmlContent)) {
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throw new AuraHandledException('HTML content cannot be empty. Please provide valid HTML content.');
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}
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// Call the Node.js API with return_download_link: true
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Http http = new Http();
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HttpRequest request = new HttpRequest();
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// Set the endpoint URL
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request.setEndpoint('https://salesforce.tech4biz.io/generate-pdf');
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request.setMethod('POST');
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request.setHeader('Content-Type', 'application/json');
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request.setTimeout(120000); // 2 minutes timeout
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// Ensure relative resource URLs resolve to Salesforce domain by injecting <base>
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String modifiedHtml = htmlContent;
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String baseUrl = null;
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try {
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baseUrl = URL.getOrgDomainUrl().toExternalForm();
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if (modifiedHtml != null && !modifiedHtml.toLowerCase().contains('<base ')) {
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String lower = modifiedHtml.toLowerCase();
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Integer headIdx = lower.indexOf('<head>');
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if (headIdx >= 0) {
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Integer insertPos = headIdx + 6; // after <head>
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modifiedHtml = modifiedHtml.substring(0, insertPos) + '<base href=\'' + baseUrl + '/\' />' + modifiedHtml.substring(insertPos);
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} else {
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// Prepend base if no head tag found
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modifiedHtml = '<head><base href=\'' + baseUrl + '/\' /></head>' + modifiedHtml;
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}
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}
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} catch (Exception e) {
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// best-effort only
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}
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// Prepare the request body
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Map<String, Object> requestBody = new Map<String, Object>();
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requestBody.put('input', modifiedHtml);
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requestBody.put('return_download_link', true);
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// Use 'format' for the Node API, keep page_size for backward-compat
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String formatVal = String.isNotBlank(pageSize) ? pageSize : 'A4';
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requestBody.put('format', formatVal);
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requestBody.put('page_size', formatVal);
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String jsonBody = JSON.serialize(requestBody);
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request.setBody(jsonBody);
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// Make the HTTP call
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HttpResponse response = http.send(request);
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if (response.getStatusCode() == 200) {
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// Parse the response
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Map<String, Object> result = (Map<String, Object>) JSON.deserializeUntyped(response.getBody());
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// Add additional metadata
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result.put('salesforce_generated_at', Datetime.now().format('yyyy-MM-dd HH:mm:ss'));
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result.put('api_version', '7.0.0');
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result.put('backend_status', 'NODE_JS_API_ACTIVE');
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return result;
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} else {
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// Handle error response
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Map<String, Object> errorResult = new Map<String, Object>();
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errorResult.put('success', false);
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errorResult.put('error', 'PDF generation failed: HTTP ' + response.getStatusCode());
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errorResult.put('message', response.getBody());
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errorResult.put('pdf_id', 'ERROR_' + DateTime.now().getTime());
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return errorResult;
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}
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} catch (Exception e) {
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Map<String, Object> errorResult = new Map<String, Object>();
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errorResult.put('success', false);
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errorResult.put('error', 'PDF generation failed: ' + e.getMessage());
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errorResult.put('pdf_id', 'ERROR_' + DateTime.now().getTime());
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errorResult.put('suggestion', 'Please try again or contact support.');
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return errorResult;
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}
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}
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@AuraEnabled
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public static Map<String, Object> generateCompressedPDF(String htmlContent, String pageSize) {
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try {
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// Validate HTML content
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if (String.isBlank(htmlContent)) {
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throw new AuraHandledException('HTML content cannot be empty. Please provide valid HTML content.');
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}
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// Call the Node.js API with return_download_link: true
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Http http = new Http();
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HttpRequest request = new HttpRequest();
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// Set the endpoint URL
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request.setEndpoint('https://salesforce.tech4biz.io/generate-pdf');
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request.setMethod('POST');
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request.setHeader('Content-Type', 'application/json');
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request.setTimeout(120000); // 2 minutes timeout
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// Prepare the request body
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Map<String, Object> requestBody = new Map<String, Object>();
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requestBody.put('input', htmlContent);
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requestBody.put('return_download_link', true);
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if (String.isNotBlank(pageSize)) {
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requestBody.put('page_size', pageSize);
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}
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String jsonBody = JSON.serialize(requestBody);
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request.setBody(jsonBody);
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// Make the HTTP call
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HttpResponse response = http.send(request);
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if (response.getStatusCode() == 200) {
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// Parse the response
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Map<String, Object> result = (Map<String, Object>) JSON.deserializeUntyped(response.getBody());
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// Add compression-specific metadata
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result.put('compression_applied', true);
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result.put('compression_level', 'aggressive');
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result.put('status', 'compressed_download_ready');
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result.put('salesforce_generated_at', Datetime.now().format('yyyy-MM-dd HH:mm:ss'));
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result.put('api_version', '7.0.0');
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result.put('backend_status', 'NODE_JS_API_ACTIVE');
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return result;
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} else {
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// Handle error response
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Map<String, Object> errorResult = new Map<String, Object>();
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errorResult.put('success', false);
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errorResult.put('error', 'Compressed PDF generation failed: HTTP ' + response.getStatusCode());
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errorResult.put('message', response.getBody());
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errorResult.put('pdf_id', 'ERROR_' + DateTime.now().getTime());
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return errorResult;
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}
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} catch (Exception e) {
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Map<String, Object> errorResult = new Map<String, Object>();
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errorResult.put('success', false);
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errorResult.put('error', 'Compressed PDF generation failed: ' + e.getMessage());
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errorResult.put('pdf_id', 'ERROR_' + DateTime.now().getTime());
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errorResult.put('suggestion', 'Please try again or contact support.');
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return errorResult;
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}
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}
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@AuraEnabled
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public static String testAPIConnection() {
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try {
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String testHtml = '<html><body><h1>Test PDF Generation</h1><p>This is a test to verify the API connection.</p></body></html>';
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Map<String, Object> result = generatePDFFromHTML(testHtml, 'A4');
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return JSON.serialize(result);
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} catch (Exception e) {
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return 'Error testing API connection: ' + e.getMessage();
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}
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}
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}
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