src/main/java/com/primefactorsolutions/model/BaseEntity.java

@@ -1,10 +1,6 @@
 package com.primefactorsolutions.model;
 
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.MappedSuperclass;
-import jakarta.persistence.Version;
+import jakarta.persistence.*;
 
 import java.util.UUID;
 
@@ -14,6 +10,12 @@ public abstract class BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.UUID)
     private UUID id;
+    private String fileName;
+    @Lob
+    @Column(columnDefinition = "BLOB")
+    private byte[] fileData;
+    @Enumerated(EnumType.STRING)
+    private DocumentType documentType;
 
     @Version
     private int version;
@@ -48,4 +50,12 @@ public abstract class BaseEntity {
         }
         return super.equals(that);
     }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public byte[] getFileData() { return fileData; }
+
+    public DocumentType getDocumentType() { return documentType; }
 }

src/main/java/com/primefactorsolutions/model/Document.java

@@ -1,12 +1,8 @@
 package com.primefactorsolutions.model;
 
-import jakarta.annotation.Nullable;
-import jakarta.persistence.Entity;
-import jakarta.persistence.ManyToOne;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
-import lombok.NoArgsConstructor;
+import jakarta.persistence.*;
+
+import lombok.*;
 
 @Entity
 @Data
@@ -14,10 +10,10 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 @EqualsAndHashCode(callSuper = true)
 public class Document extends BaseEntity {
-    @Nullable
-    private String description;
-    private String location;
+    private String fileName;
+    @Enumerated(EnumType.STRING)
     private DocumentType documentType;
-    @ManyToOne
-    private Employee employee;
+    @Lob
+    @Column(columnDefinition = "BLOB")
+    private byte[] fileData;
 }

src/main/java/com/primefactorsolutions/model/DocumentType.java

@@ -3,5 +3,11 @@ package com.primefactorsolutions.model;
 public enum DocumentType {
     ID_CARD,
     PAY_STUB,
+    PAY_SLIPS,
+    EMPLOYMENT_CONTRACT,
+    WORK_CERTIFICATES,
+    NDA,
+    MEMORANDUMS,
+    CONTRACT_APPROVAL_MTEPS,
     OTHER
 }

src/main/java/com/primefactorsolutions/repositories/DocumentRepository.java

@@ -0,0 +1,9 @@
+package com.primefactorsolutions.repositories;
+
+import com.primefactorsolutions.model.Document;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.UUID;
+
+public interface DocumentRepository  extends JpaRepository<Document, UUID> {
+}

src/main/java/com/primefactorsolutions/service/DocumentService.java

@@ -0,0 +1,44 @@
+package com.primefactorsolutions.service;
+
+//import com.primefactorsolutions.model.Candidate;
+import com.primefactorsolutions.model.Document;
+import com.primefactorsolutions.repositories.DocumentRepository;
+//import lombok.AllArgsConstructor;
+//import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+//import java.io.IOException;
+//import java.sql.Connection;
+//import java.sql.PreparedStatement;
+//import java.sql.ResultSet;
+//import java.sql.SQLException;
+//import javax.sql.DataSource;
+//import javax.sql.DataSource;
+import org.springframework.transaction.annotation.Transactional;
+//import org.springframework.web.multipart.MultipartFile;
+
+//import java.io.InputStream;
+import java.util.List;
+import java.util.UUID;
+import java.util.Optional;
+
+@Service
+public class DocumentService {
+    private final DocumentRepository documentRepository;
+
+    public DocumentService(DocumentRepository documentRepository) {
+        this.documentRepository = documentRepository;
+    }
+
+    public void saveDocument(Document newDocument) {
+        documentRepository.save(newDocument);
+    }
+
+    public List<Document> getAllDocuments() {
+        return documentRepository.findAll();
+    }
+
+    public Optional<Document> getDocumentById(UUID id) {
+        return documentRepository.findById(id);
+    }
+}

src/main/java/com/primefactorsolutions/views/GovernmentDocumentsView.java

@@ -1,16 +1,79 @@
 package com.primefactorsolutions.views;
 
+import com.primefactorsolutions.model.Document;
+import com.primefactorsolutions.service.DocumentService;
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.html.Anchor;
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.H2;
 import com.vaadin.flow.component.html.Main;
+import com.vaadin.flow.component.notification.Notification;
+//import com.vaadin.flow.component.orderedlayout.FlexComponent;
+//import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
+import com.vaadin.flow.component.upload.Upload;
+import com.vaadin.flow.component.upload.receivers.MemoryBuffer;
 import com.vaadin.flow.router.PageTitle;
 import com.vaadin.flow.router.Route;
+import com.vaadin.flow.server.StreamResource;
 import com.vaadin.flow.spring.annotation.SpringComponent;
 import jakarta.annotation.security.PermitAll;
 import org.springframework.context.annotation.Scope;
 
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+//import java.io.InputStream;
+import java.util.UUID;
+
 @SpringComponent
 @PermitAll
 @Scope("prototype")
 @PageTitle("GovernmentDocumentsView")
 @Route(value = "/government-documents/me", layout = MainLayout.class)
 public class GovernmentDocumentsView extends Main {
+
+    private final DocumentService documentService;
+    private final Div documentListDiv = new Div();
+
+    public GovernmentDocumentsView(DocumentService documentService) {
+        this.documentService = documentService;
+        initializeLayout();
+    }
+
+    private void initializeLayout() {
+        setSizeFull();
+        add(new H2("Document Management"));
+
+        // Upload Component
+        MemoryBuffer buffer = new MemoryBuffer();
+        Upload upload = new Upload(buffer);
+        upload.addSucceededListener(event -> {
+            try {
+                String fileName = event.getFileName();
+                byte[] content = buffer.getInputStream().readAllBytes();
+//                documentService.saveDocument(fileName, content);
+                Notification.show("File uploaded successfully");
+                updateDocumentList();
+            } catch (IOException e) {
+                Notification.show("Error uploading file: " + e.getMessage());
+            }
+        });
+
+        // Add Upload component
+        add(upload);
+
+        // Display documents
+        updateDocumentList();
+    }
+
+    private void updateDocumentList() {
+        documentListDiv.removeAll();
+        for (Document document : documentService.getAllDocuments()) {
+            // Create a view link for each document
+//            StreamResource streamResource = new StreamResource(document.getName(), () -> new ByteArrayInputStream(document.getContent()));
+//            Anchor viewLink = new Anchor(streamResource, "View " + document.getName());
+//            viewLink.getElement().setAttribute("target", "_blank");
+//            documentListDiv.add(viewLink);
+        }
+        add(documentListDiv);
+    }
 }

src/main/java/com/primefactorsolutions/views/WorkDocumentsView.java

@@ -1,16 +1,166 @@
 package com.primefactorsolutions.views;
 
+import com.primefactorsolutions.model.Document;
+import com.primefactorsolutions.model.DocumentType;
+import com.primefactorsolutions.service.DocumentService;
+import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.dialog.Dialog;
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.H2;
+import com.vaadin.flow.component.html.IFrame;
 import com.vaadin.flow.component.html.Main;
+import com.vaadin.flow.component.notification.Notification;
+import com.vaadin.flow.component.orderedlayout.FlexComponent;
+import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
+import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.component.upload.Upload;
+import com.vaadin.flow.component.upload.receivers.MemoryBuffer;
 import com.vaadin.flow.router.PageTitle;
 import com.vaadin.flow.router.Route;
 import com.vaadin.flow.spring.annotation.SpringComponent;
 import jakarta.annotation.security.PermitAll;
 import org.springframework.context.annotation.Scope;
 
+import java.io.IOException;
+import java.util.Base64;
+
 @SpringComponent
 @PermitAll
 @Scope("prototype")
 @PageTitle("WorkDocuments")
 @Route(value = "/work-documents/me", layout = MainLayout.class)
 public class WorkDocumentsView extends Main {
+    private final DocumentService documentService;
+    private final MemoryBuffer buffer = new MemoryBuffer();
+    private String lastUploadedFileName = null;
+    private DocumentType currentDocumentType = null;
+
+    public WorkDocumentsView(DocumentService documentService) {
+        this.documentService = documentService;
+        initializeLayout();
+    }
+
+    private void initializeLayout() {
+        add(createRow("PaySlips", DocumentType.PAY_SLIPS,
+                "Employment Contract", DocumentType.EMPLOYMENT_CONTRACT));
+        add(createRow("Work Certificates", DocumentType.WORK_CERTIFICATES,
+                "NDA", DocumentType.NDA));
+        add(createRow("Memorandums", DocumentType.MEMORANDUMS,
+                "Contract Approval MTEPS", DocumentType.CONTRACT_APPROVAL_MTEPS));
+    }
+
+    private HorizontalLayout createRow(String title1, DocumentType type1, String title2, DocumentType type2) {
+        HorizontalLayout row = new HorizontalLayout();
+        row.add(createDocumentSection(title1, type1), createDocumentSection(title2, type2));
+        return row;
+    }
+
+    private Div createDocumentSection(String title, DocumentType documentType) {
+        Div section = new Div();
+        section.add(new H2(title));
+
+        Upload upload = createUploadComponent();
+        Button viewButton = createViewButton(documentType);
+        Button saveButton = createSaveButton(viewButton, documentType);
+
+        section.add(createLayout(upload),
+                createLayout(viewButton, new Button("Edit"), saveButton),
+                createAdditionalButtons());
+        return section;
+    }
+
+    private Upload createUploadComponent() {
+        Upload upload = new Upload(buffer);
+        upload.setMaxFiles(1);
+        upload.setAcceptedFileTypes(".pdf");
+        upload.addSucceededListener(event -> handleUploadSuccess(event.getFileName()));
+        return upload;
+    }
+
+    private Button createViewButton(DocumentType documentType) {
+        Button viewButton = new Button("View");
+        viewButton.setEnabled(documentExists(documentType));
+        viewButton.addClickListener(event -> viewDocument(documentType));
+        return viewButton;
+    }
+
+    private Button createSaveButton(Button viewButton, DocumentType documentType) {
+        Button saveButton = new Button("Save");
+        saveButton.addClickListener(event -> saveFile(documentType, viewButton));
+        return saveButton;
+    }
+
+    private void handleUploadSuccess(String fileName) {
+        lastUploadedFileName = fileName;
+        Notification.show("File uploaded successfully");
+    }
+
+    private HorizontalLayout createLayout(Component... components) {
+        if (components.length != 1 && components.length != 3) {
+            throw new IllegalArgumentException("This method only accepts 1 or 3 components.");
+        }
+        HorizontalLayout layout = new HorizontalLayout(components);
+        layout.setJustifyContentMode(FlexComponent.JustifyContentMode.CENTER);
+        return layout;
+    }
+
+    private HorizontalLayout createAdditionalButtons() {
+        return createLayout(new Button("Print"), new Button("Download"), new Button("Delete"));
+    }
+
+    private void saveFile(DocumentType documentType, Button viewButton) {
+        if (lastUploadedFileName == null) {
+            Notification.show("Please upload a file first.");
+            return;
+        }
+        try {
+            byte[] content = buffer.getInputStream().readAllBytes();
+            documentService.saveDocument(new Document(lastUploadedFileName, documentType, content));
+            Notification.show("File saved successfully.");
+            viewButton.setEnabled(true);
+        } catch (IOException e) {
+            Notification.show("Error saving file: " + e.getMessage());
+        }
+    }
+
+    private boolean documentExists(DocumentType documentType) {
+        return documentService.getAllDocuments().stream()
+                .anyMatch(doc -> doc.getDocumentType() == documentType);
+    }
+
+    private void viewDocument(DocumentType documentType) {
+        documentService.getAllDocuments().stream()
+                .filter(doc -> doc.getDocumentType() == documentType)
+                .findFirst()
+                .ifPresentOrElse(this::showPdfDialog, () -> Notification.show("Document not found."));
+    }
+
+    private void showPdfDialog(Document document) {
+        Dialog dialog = createDialog(document.getFileData());
+        dialog.open();
+    }
+
+    private Dialog createDialog(byte[] fileData) {
+        Dialog dialog = new Dialog();
+        dialog.setModal(true);
+        dialog.setCloseOnEsc(true);
+        dialog.setCloseOnOutsideClick(true);
+
+        IFrame pdfFrame = new IFrame();
+        pdfFrame.setSrc(createPdfResource(fileData));
+        pdfFrame.setWidth("800px");
+        pdfFrame.setHeight("600px");
+
+        Button closeButton = new Button("Close", event -> dialog.close());
+        VerticalLayout layout = new VerticalLayout(pdfFrame, closeButton);
+        layout.setAlignItems(FlexComponent.Alignment.CENTER);
+
+        dialog.add(layout);
+        return dialog;
+    }
+
+    private String createPdfResource(byte[] fileData) {
+        return "data:application/pdf;base64," + Base64.getEncoder().encodeToString(fileData);
+    }
 }