Done ticket GEPAFINBE-231

src/main/java/net/gepafin/tendermanagement/dao/ApplicationDao.java

@@ -56,13 +56,11 @@ import org.springframework.web.multipart.MultipartFile;
 
 import jakarta.servlet.http.HttpServletRequest;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStreamWriter;
+import java.io.*;
 import java.lang.reflect.Method;
 import java.math.BigDecimal;
 
+import java.nio.charset.StandardCharsets;
 import java.sql.Timestamp;
 import java.text.MessageFormat;
 import java.text.SimpleDateFormat;
@@ -217,6 +215,9 @@ public class ApplicationDao {
     @Autowired
     private ApplicationEvaluationDao applicationEvaluationDao;
 
+    @Autowired
+    private EvaluationCriteriaRepository evaluationCriteriaRepository;
+
     public final Random random = new Random();
 
     public ApplicationResponseBean createApplication(HttpServletRequest request, ApplicationRequestBean applicationRequestBean, Long formId, Long applicationId) {
@@ -2419,4 +2420,78 @@ public class ApplicationDao {
         emailNotificationDao.sendMail(hub.getId(), subject, body, List.of(GepafinConstant.RINALDO_EMAIL),emailLogRequest);
     }
 
+    public byte[] downloadRankingCsv(Long callId) {
+        CallEntity callEntity = callService.validateCall(callId);
+
+        BigDecimal scoreList = BigDecimal.ZERO;
+        List<EvaluationCriteriaEntity> evaluationCriteriaEntities =
+                evaluationCriteriaRepository.findByCallIdAndIsDeletedFalse(callId);
+        List<String> headers = Arrays.asList(
+                "ApplicationID",
+                "VatNumber",
+                "Company Name",
+                "Protocol",
+                "Requested Amount",
+                "Status",
+                "Total Score",
+                "Individual Scores"
+        );
+
+
+        for (EvaluationCriteriaEntity evaluationCriteria : evaluationCriteriaEntities) {
+            scoreList = scoreList.add(evaluationCriteria.getScore());
+        }
+
+        List<ApplicationEntity> applications =
+                applicationRepository.findByCallIdAndIsDeletedFalseAndStatusIn(callId,List.of(ApplicationStatusForEvaluation.APPROVED.getValue(),ApplicationStatusForEvaluation.ADMISSIBLE.getValue(),ApplicationStatusForEvaluation.TECHNICAL_EVALUATION.getValue()));
+
+        // Collect all rows with totalScore for sorting
+        List<List<Object>> rows = new ArrayList<>();
+
+        for (ApplicationEntity app : applications) {
+            CompanyEntity company = companyService.validateCompany(app.getCompanyId());
+            String name = company.getCompanyName();
+            String vat = company.getVatNumber();
+            Long applicationId = app.getId();
+            ProtocolEntity protocolEntity = app.getProtocol();
+            Long protocol = (protocolEntity != null) ? protocolEntity.getProtocolNumber() : 0L;
+            BigDecimal requestedAmount = app.getAmountRequested();
+            String status = app.getStatus();
+
+            ApplicationEvaluationEntity applicationEvaluationEntity =
+                    applicationEvaluationRepository.findByApplicationId(app.getId());
+
+            BigDecimal totalScore = applicationEvaluationDao.calculateTotalScore(
+                    applicationEvaluationEntity.getCriteria()
+            );
+
+            rows.add(Arrays.asList(
+                    applicationId,
+                    vat,
+                    name,
+                    protocol,
+                    requestedAmount,
+                    status,
+                    scoreList,
+                    totalScore
+            ));
+        }
+
+        // 5. Write the CSV using Commons CSV, with headers:
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        try (OutputStreamWriter writer = new OutputStreamWriter(out, StandardCharsets.UTF_8);
+             CSVPrinter csvPrinter = new CSVPrinter(writer,
+                     CSVFormat.DEFAULT.withHeader(headers.toArray(new String[0])))) {
+
+            for (List<Object> row : rows) {
+                csvPrinter.printRecord(row);
+            }
+            csvPrinter.flush();
+        } catch (IOException e) {
+            throw new RuntimeException("Error while generating CSV", e);
+        }
+
+        return out.toByteArray();
+    }
+
 }