feat: HTML file report generation for single scan

Signed-off-by: Oleg Kopysov <o.kopysov@samsung.com>

pom.xml

@@ -129,6 +129,10 @@
             <artifactId>jakarta.servlet-api</artifactId>
             <version>6.1.0</version>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/com/lpvs/service/scan/LPVSDetectService.java

@@ -12,6 +12,7 @@
 import java.util.Date;
 import java.util.List;
 
+import com.lpvs.entity.report.LPVSReportBuilder;
 import com.lpvs.service.LPVSGitHubConnectionService;
 import com.lpvs.service.LPVSGitHubService;
 import com.lpvs.service.LPVSLicenseService;
@@ -32,6 +33,8 @@
 
 import lombok.extern.slf4j.Slf4j;
 
+import static com.lpvs.entity.report.LPVSReportBuilder.saveHTMLToFile;
+
 /**
  * Service class for detecting licenses in GitHub pull requests using a specified scanner.
  */
@@ -59,6 +62,11 @@ public class LPVSDetectService {
      */
     private LPVSScanService scanService;
 
+    /**
+     * Component responsible for the generation of HTML reports.
+     */
+    private LPVSReportBuilder reportBuilder;
+
     /**
      * Trigger value to start a single scan of a pull request (optional).
      */
@@ -91,6 +99,7 @@ public class LPVSDetectService {
      * @param licenseService          Service for license conflict analysis.
      * @param gitHubService           Service for GitHub connection and operation.
      * @param scanServiceFactory      Service for creating instance of the scanner.
+     * @param reportBuilder           Service for generating HTML reports.
      */
     @Autowired
     public LPVSDetectService(
@@ -99,12 +108,14 @@ public LPVSDetectService(
             LPVSGitHubConnectionService gitHubConnectionService,
             LPVSLicenseService licenseService,
             LPVSGitHubService gitHubService,
-            LPVSScanServiceFactory scanServiceFactory) {
+            LPVSScanServiceFactory scanServiceFactory,
+            LPVSReportBuilder reportBuilder) {
         this.gitHubConnectionService = gitHubConnectionService;
         this.licenseService = licenseService;
         this.gitHubService = gitHubService;
         this.scanService = scanServiceFactory.createScanService(scannerType, isInternal);
         log.info("License detection scanner: " + scannerType);
+        this.reportBuilder = reportBuilder;
     }
 
     /**
@@ -117,6 +128,7 @@ public void runSingleScan() {
         LPVSQueue webhookConfig = null;
         List<LPVSFile> scanResult = null;
         List<LPVSLicenseService.Conflict<String, String>> detectedConflicts = null;
+        String path = null;
 
         // Error case when both pull request scan and local files scan are set to true
         if (!StringUtils.isBlank(trigger) && !StringUtils.isBlank(localPath)) {
@@ -138,6 +150,7 @@ public void runSingleScan() {
 
                 detectedConflicts = licenseService.findConflicts(webhookConfig, scanResult);
                 generateReport = true;
+                path = HtmlUtils.htmlEscape(trigger);
                 log.info("Single scan of pull request completed.");
             } catch (Exception ex) {
                 log.error("Single scan of pull request failed with error: " + ex.getMessage());
@@ -165,6 +178,7 @@ public void runSingleScan() {
 
                     detectedConflicts = licenseService.findConflicts(webhookConfig, scanResult);
                     generateReport = true;
+                    path = localFile.getAbsolutePath();
                     log.info("Single scan of local file(s) completed.");
                 } else {
                     throw new Exception("File path does not exist: " + localPath);
@@ -187,9 +201,9 @@ public void runSingleScan() {
             File folder = new File(folderPath);
             if (folder.exists() && folder.isDirectory()) {
                 String reportFile =
-                        LPVSCommentUtil.buildHTMLComment(
-                                webhookConfig, scanResult, detectedConflicts);
-                LPVSCommentUtil.saveHTMLToFile(reportFile, report.getAbsolutePath());
+                        reportBuilder.generateHtmlReportSingleScan(
+                                path, scanResult, detectedConflicts, null, null);
+                saveHTMLToFile(reportFile, report.getAbsolutePath());
             } else {
                 log.error("Error: The parent directory '" + folder.getPath() + "' does not exist.");
             }

src/main/java/com/lpvs/util/LPVSCommentUtil.java

@@ -6,11 +6,6 @@
  */
 package com.lpvs.util;
 
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 import com.lpvs.entity.LPVSDetectedLicense;
@@ -44,6 +39,9 @@ public class LPVSCommentUtil {
      */
     public static String getMatchedLinesAsLink(
             LPVSQueue webhookConfig, LPVSFile file, LPVSVcs vcs) {
+        if (webhookConfig == null) {
+            return file.getMatchedLines();
+        }
         String prefix =
                 LPVSPayloadUtil.getRepositoryUrl(webhookConfig)
                         + "/blob/"
@@ -138,90 +136,4 @@ public static String reportCommentBuilder(
 
         return commitCommentBuilder.toString();
     }
-
-    /**
-     * Generates a formatted string for an HTML report with scan results.
-     *
-     * @param webhookConfig The {@link LPVSQueue} configuration for the webhook.
-     * @param scanResults   List containing preformatted scan results.
-     * @param conflicts     List containing license conflict information.
-     * @return A string containing scan results in HTML format.
-     */
-    public static String buildHTMLComment(
-            LPVSQueue webhookConfig,
-            List<LPVSFile> scanResults,
-            List<LPVSLicenseService.Conflict<String, String>> conflicts) {
-        StringBuilder htmlBuilder = new StringBuilder();
-
-        htmlBuilder.append("<html><body>");
-
-        if (scanResults != null && scanResults.size() != 0) {
-            htmlBuilder.append("<h2>Detected licenses:</h2>");
-            for (LPVSFile file : scanResults) {
-                htmlBuilder
-                        .append("<p><strong>File:</strong> ")
-                        .append(file.getFilePath())
-                        .append("</p>");
-                htmlBuilder
-                        .append("<p><strong>License(s):</strong> ")
-                        .append(file.convertLicensesToString(LPVSVcs.GITHUB))
-                        .append("</p>");
-                htmlBuilder
-                        .append("<p><strong>Component:</strong> ")
-                        .append(file.getComponentName())
-                        .append(" (")
-                        .append(file.getComponentFilePath())
-                        .append(")</p>");
-                htmlBuilder
-                        .append("<p><strong>Matched Lines:</strong> ")
-                        .append(
-                                LPVSCommentUtil.getMatchedLinesAsLink(
-                                        webhookConfig, file, LPVSVcs.GITHUB))
-                        .append("</p>");
-                htmlBuilder
-                        .append("<p><strong>Snippet Match:</strong> ")
-                        .append(file.getSnippetMatch())
-                        .append("</p>");
-                htmlBuilder.append("<hr>");
-            }
-        }
-
-        if (conflicts != null && conflicts.size() > 0) {
-            htmlBuilder.append("<h2>Detected license conflicts:</h2>");
-            htmlBuilder.append("<ul>");
-            for (LPVSLicenseService.Conflict<String, String> conflict : conflicts) {
-                htmlBuilder
-                        .append("<li>")
-                        .append(conflict.l1)
-                        .append(" and ")
-                        .append(conflict.l2)
-                        .append("</li>");
-            }
-            htmlBuilder.append("</ul>");
-            if (webhookConfig.getHubLink() != null) {
-                htmlBuilder.append("<p>").append(webhookConfig.getHubLink()).append("</p>");
-            }
-        }
-
-        htmlBuilder.append("</body></html>");
-
-        return htmlBuilder.toString();
-    }
-
-    /**
-     * Saves HTML report to given location.
-     *
-     * @param htmlContent   The string, containing report in HTML format.
-     * @param filePath      The path to expected html report file.
-     */
-    public static void saveHTMLToFile(String htmlContent, String filePath) {
-        File file = new File(filePath);
-        try (BufferedWriter writer =
-                new BufferedWriter(new FileWriter(file, StandardCharsets.UTF_8))) {
-            writer.write(htmlContent);
-            log.info("LPVS report saved to: " + filePath);
-        } catch (IOException ex) {
-            log.error("error during saving HTML report: " + ex.getMessage());
-        }
-    }
 }