Done ticket

src/main/java/net/gepafin/tendermanagement/web/rest/api/PdfApi.java

@@ -0,0 +1,35 @@
+package net.gepafin.tendermanagement.web.rest.api;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.ExampleObject;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import net.gepafin.tendermanagement.web.rest.api.errors.ErrorConstants;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+
+@Validated
+public interface PdfApi {
+
+    @Operation(summary = "API to generate PDF for an application",
+            responses = {
+                    @ApiResponse(responseCode = "200", description = "OK", content = @Content(mediaType = "application/pdf")),
+                    @ApiResponse(responseCode = "404", description = "Not Found", content = @Content(mediaType = MediaType.APPLICATION_JSON_VALUE, examples = {
+                            @ExampleObject(value = ErrorConstants.NOTFOUND_ERROR_EXAMPLE) })),
+                    @ApiResponse(responseCode = "401", description = "Unauthorized", content = @Content(mediaType = MediaType.APPLICATION_JSON_VALUE, examples = {
+                            @ExampleObject(value = ErrorConstants.UNAUTHORIZED_ERROR_EXAMPLE) })),
+                    @ApiResponse(responseCode = "400", description = "Bad Request", content = @Content(mediaType = MediaType.APPLICATION_JSON_VALUE, examples = {
+                            @ExampleObject(value = ErrorConstants.BADREQUEST_ERROR_EXAMPLE) }))
+            })
+    @PostMapping(value = "/{applicationId}/generate-pdf",
+            produces = { "application/pdf" })
+    public ResponseEntity<byte[]> generateApplicationPdf(
+            HttpServletRequest request,
+            @Parameter(description = "The application id", required = true)
+            @PathVariable(value = "applicationId", required = true) Long applicationId);
+}

src/main/java/net/gepafin/tendermanagement/web/rest/api/impl/PdfController.java

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+package net.gepafin.tendermanagement.web.rest.api.impl;
+
+import com.itextpdf.text.*;
+import com.itextpdf.text.pdf.*;
+import jakarta.servlet.http.HttpServletRequest;
+import net.gepafin.tendermanagement.dao.RoundedCorners;
+import net.gepafin.tendermanagement.service.PdfService;
+import net.gepafin.tendermanagement.web.rest.api.PdfApi;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+
+@RestController
+public class PdfController implements PdfApi {
+
+    @Autowired
+    private PdfService pdfService;
+
+    @Override
+    public ResponseEntity<byte[]> generateApplicationPdf(HttpServletRequest request, Long applicationId) {
+        byte[] pdfBytes =pdfService.generatePdf(request,applicationId);
+
+        // Prepare headers for downloading the PDF
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Content-Disposition", "attachment; filename=bando-preview.pdf");
+
+        // Return the PDF as a response
+        return ResponseEntity.ok()
+                .headers(headers)
+                .contentType(MediaType.APPLICATION_PDF)
+                .body(pdfBytes);
+    }
+}
+