Completed the api through the use of DTO's

.gitignore

@@ -4,4 +4,5 @@ application.properties
 .settings/
 .project
 .classpath
-.vscode/
+.vscode/
+.env

Dockerfile

@@ -0,0 +1,21 @@
+# -------- Build stage --------
+FROM maven:3.9.6-eclipse-temurin-21 AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+RUN mvn -B dependency:go-offline
+
+COPY src ./src
+RUN mvn -B clean package -DskipTests
+
+# -------- Runtime stage --------
+FROM eclipse-temurin:21-jre
+
+WORKDIR /app
+
+COPY --from=build /app/target/*.jar app.jar
+
+EXPOSE 9010
+
+ENTRYPOINT ["java", "-jar", "app.jar"]

src/main/java/org/zaine/app/controller/CommentsController.java

@@ -7,12 +7,15 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.zaine.app.dto.CreateCommentDTO;
 import org.zaine.app.model.Comments;
 import org.zaine.app.service.CommentsService;
 
 @RestController
+@RequestMapping("/api/comments")
 public class CommentsController {
     private static final Logger logger = System.getLogger(CommentsController.class.getName());
     @Autowired
@@ -25,14 +28,44 @@ public class CommentsController {
        	  
     }
 
-    @GetMapping("/comments/item/{id}")
-    public Comments getCommentById(@PathVariable Long id) {
+    @GetMapping("/item/{id}")
+    public Comments getCommentById(@PathVariable Integer id) {
 	return commentsService.getCommentById(id);
     }
 
-    @GetMapping("/comments/items")
+    @GetMapping("")
     public List<Comments> getAllComments() {
 	return commentsService.getAllComments();
     }
 
+
+	@PostMapping(
+		value = "",
+		consumes = "application/json"
+	)
+	public void addComment(@RequestBody CreateCommentDTO dto) {
+
+		if (dto.getContent() == null || dto.getContent().trim().isEmpty()) {
+			logger.log(System.Logger.Level.WARNING,
+				"Attempted to add empty comment. Operation aborted.");
+			return;
+		}
+
+		Comments newComment = new Comments();
+		newComment.setPageSlug(dto.getPageSlug());
+		newComment.setAuthor(dto.getAuthor());
+		newComment.setContent(dto.getContent());
+		newComment.setParentId(dto.getParentId());
+		newComment.setCreatedAt(java.time.Instant.now());
+
+		logger.log(System.Logger.Level.INFO,
+			"Adding comment to pageSlug: " + dto.getPageSlug());
+
+		commentsService.addComment(newComment);
+	}
+
+	@GetMapping("/thread/{comment_id}")
+	public List<Comments> getCommentThread(@PathVariable Integer comment_id) {
+		return commentsService.getCommentThread(comment_id);
+	}
 }

src/main/java/org/zaine/app/controller/CompetenciesController.java

@@ -2,41 +2,48 @@ package org.zaine.app.controller;
 
 import java.lang.System.Logger;
 import java.util.List;
+import java.util.Map;
 
+import org.zaine.app.dto.CompetenciesDTO;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
 import org.zaine.app.model.Competencies;
 import org.zaine.app.service.CompetenciesService;
 
+
 @RestController
+@RequestMapping("/api/competencies")
 public class CompetenciesController {
 
     private static final Logger logger = System.getLogger(CompetenciesController.class.getName());
     @Autowired
     private CompetenciesService competenciesService;
 
-    @GetMapping("/competencies/items")
+    @GetMapping("/items")
     public List<Competencies> getAllCompetencies() {
 
 	return competenciesService.getAllCompetencies();
 	}
 
-    @GetMapping("/competencies/item/{id}")
-    public Competencies getCompetencyById(@PathVariable Long id) {
+    @GetMapping("/item/{id}")
+    public Competencies getCompetencyById(@PathVariable Integer id) {
 	return competenciesService.getCompetencyById(id);
     }
 
-    
-    @PostMapping("/competencies/items/{id}/state")
-    public void updateCompetencyState(@PathVariable Long id, @RequestParam String newState) {
-	logger.log(System.Logger.Level.INFO, "Received request to update competency id " + id + " to new state: " + newState);
-	
-	competenciesService.updateCompetencyState(id, newState);
-	
+    @PostMapping(
+        value = "/items/{id}/state",
+        consumes = "application/json"
+    )
+    public void updateCompetencyState(
+            @PathVariable Integer id,
+            @RequestBody CompetenciesDTO request
+    ) {
+        competenciesService.updateCompetencyState(id, request.getState());
     }
 
 }

src/main/java/org/zaine/app/controller/HealthController.java

@@ -1,4 +1,4 @@
-package org.zaine.app;
+package org.zaine.app.controller;
 
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;

src/main/java/org/zaine/app/controller/NotesController.java

@@ -7,11 +7,13 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.zaine.app.dto.CreateNoteDTO;
 import org.zaine.app.model.Notes;
 import org.zaine.app.service.NotesService;
 import java.util.List;
 
 @RestController
+@RequestMapping("/api")
 public class NotesController {
 	@Autowired
 	private NotesService notesService;
@@ -22,10 +24,19 @@ public class NotesController {
 		return notesService.getAllNotes();
 	}
 
-	@PostMapping("/notes")
-	public Notes createNote(@RequestBody Notes note) {
+	@PostMapping(
+		value = "/notes",
+		consumes = "application/json"
+	)
+	public Notes createNote(@RequestBody CreateNoteDTO dto) {
+
+		Notes note = new Notes();
+		note.setAuthorName(dto.getAuthorName());
+		note.setContent(dto.getContent());
+
 		return notesService.createNote(note);
 	}
+
     
 
     

src/main/java/org/zaine/app/dto/CompetenciesDTO.java

@@ -0,0 +1,18 @@
+package org.zaine.app.dto;
+
+public class CompetenciesDTO {
+
+    private String state;
+
+    public CompetenciesDTO() {
+        // REQUIRED: default constructor
+    }
+
+    public String getState() {
+        return state;
+    }
+
+    public void setState(String state) {
+        this.state = state;
+    }
+}

src/main/java/org/zaine/app/dto/CreateCommentDTO.java

@@ -0,0 +1,50 @@
+package org.zaine.app.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class CreateCommentDTO {
+
+    @JsonProperty("page_slug")
+    private String pageSlug;
+
+    private String author;
+
+    private String content;
+
+    @JsonProperty("parent_id")
+    private Integer parentId;
+
+    public CreateCommentDTO() {}
+
+    public String getPageSlug() {
+        return pageSlug;
+    }
+
+    public void setPageSlug(String pageSlug) {
+        this.pageSlug = pageSlug;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public Integer getParentId() {
+        return parentId;
+    }
+
+    public void setParentId(Integer parentId) {
+        this.parentId = parentId;
+    }
+}

src/main/java/org/zaine/app/dto/CreateNoteDTO.java

@@ -0,0 +1,29 @@
+package org.zaine.app.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class CreateNoteDTO {
+
+    @JsonProperty("author_name")
+    private String authorName;
+
+    private String content;
+
+    public CreateNoteDTO() {}
+
+    public String getAuthorName() {
+        return authorName;
+    }
+
+    public void setAuthorName(String authorName) {
+        this.authorName = authorName;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+}

src/main/java/org/zaine/app/model/Comments.java

@@ -1,9 +1,13 @@
 package org.zaine.app.model;
 
 import java.time.Instant;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.Table;
 
@@ -12,9 +16,9 @@ import jakarta.persistence.Table;
 public class Comments {
 
     @Id
-    @GeneratedValue
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "id")
-    private Long id;
+    private Integer id;
 
     @Column(name = "page_slug")
     private String pageSlug;
@@ -25,17 +29,19 @@ public class Comments {
     @Column(name="content")
     private String content;
 
+    @JsonProperty("created_at")
     @Column(name="created_at")
     private Instant createdAt;
 
+    @JsonProperty("parent_id")
     @Column(name="parent_id")
-    private Long parentId;
+    private Integer parentId;
 
 
-    public Long getId() {
+    public Integer getId() {
 	return id;
     }
-    public void setId(Long id) {
+    public void setId(Integer id) {
 	this.id = id;
     }
     public String getPageSlug() {
@@ -62,10 +68,10 @@ public class Comments {
     public void setCreatedAt(Instant createdAt) {
 	this.createdAt = createdAt;
     }
-    public Long getParentId() {
+    public Integer getParentId() {
 	return parentId;
     }
-    public void setParentId(Long parentId) {
+    public void setParentId(Integer parentId) {
 	this.parentId = parentId;
     }
     

src/main/java/org/zaine/app/model/Competencies.java

@@ -6,15 +6,16 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.Table;
 import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
 
 @Entity
 @Table(name = "competencies")
 public class Competencies {
 
     @Id
-    @GeneratedValue
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name="id")
-    private Long id;
+    private Integer id;
 
     @Column(name="title")
     private String title;
@@ -29,7 +30,7 @@ public class Competencies {
     private String group;
 
     
-    public Long getId() {
+    public Integer getId() {
       return id;
     }
 

src/main/java/org/zaine/app/model/Notes.java

@@ -9,6 +9,8 @@ import jakarta.persistence.GeneratedValue;
 import java.time.Instant;
 import java.util.UUID;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+
 @Entity
 @Table(name = "public_notes")
 public class Notes {
@@ -21,11 +23,14 @@ public class Notes {
     @Column(name="content")
 	private String content;
 
+    @JsonProperty("author_name")
     @Column(name="author_name")
-	private String authorName;
+    private String authorName;
 
+    @JsonProperty("created_at")
     @Column(name="created_at")
-	private Instant createdAt;
+    private Instant createdAt;
+
 
     public UUID getId() {
         return id;
@@ -51,5 +56,9 @@ public class Notes {
         return createdAt;
     }
 
+    public void setCreatedAt(Instant createdAt) {
+        this.createdAt = createdAt;
+    }
+
 
 }

src/main/java/org/zaine/app/repositories/CommentsRepository.java

@@ -1,8 +1,29 @@
 package org.zaine.app.repositories;
 
+import java.util.List;
+
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.zaine.app.model.Comments;
 
-public interface CommentsRepository extends JpaRepository<Comments, Long> {
+public interface CommentsRepository extends JpaRepository<Comments, Integer> {
+    @Query(value = """
+        WITH RECURSIVE comment_tree AS (
+            SELECT id, parent_id, author, content, created_at, page_slug
+            FROM comments
+            WHERE id = :commentId
+              AND is_deleted = false
 
+            UNION ALL
+
+            SELECT c.id, c.parent_id, c.author, c.content, c.created_at, c.page_slug
+            FROM comments c
+            JOIN comment_tree ct ON c.parent_id = ct.id
+            WHERE c.is_deleted = false
+        )
+        SELECT * FROM comment_tree
+        ORDER BY created_at ASC
+        """, nativeQuery = true)
+    List<Comments> findCommentThread(@Param("commentId") Integer commentId);
 }

src/main/java/org/zaine/app/repositories/CompetenciesRepository.java

@@ -4,6 +4,6 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import org.zaine.app.model.Competencies;
 
 
-public interface CompetenciesRepository extends JpaRepository<Competencies, Long> {
+public interface CompetenciesRepository extends JpaRepository<Competencies, Integer> {
     
 }

src/main/java/org/zaine/app/service/CommentsService.java

@@ -30,9 +30,25 @@ public class CommentsService {
 	return filteredComments;
     }
     
-    public Comments getCommentById(Long id) {
+    public Comments getCommentById(Integer id) {
 	logger.log(System.Logger.Level.INFO, "Entering getCommentById with id: " + id);
 	return commentsRepository.findById(id).get();
     }
 
-}
+    public void addComment(Comments comment) {
+    if (comment == null) {
+        logger.log(System.Logger.Level.WARNING, "Comment is null. Operation aborted.");
+        return;
+    } else {
+        logger.log(System.Logger.Level.INFO, "Adding comment with id: " + comment.getId());
+	    commentsRepository.save(comment);
+	    logger.log(System.Logger.Level.INFO, "Added new comment with id: " + comment.getId());
+
+        }
+    }
+
+    public List<Comments> getCommentThread(Integer comment_id) {
+        logger.log(System.Logger.Level.INFO, "Entering getCommentThread with id: " + comment_id);
+        return commentsRepository.findCommentThread(comment_id);
+    }   
+}   

src/main/java/org/zaine/app/service/CompetenciesService.java

@@ -26,7 +26,7 @@ public class CompetenciesService {
 
 	}
     
-	public Competencies getCompetencyById(Long id) {
+	public Competencies getCompetencyById(Integer id) {
 
 		logger.log(System.Logger.Level.INFO, "Entering getCompetencyById with id: " + id);
 
@@ -34,21 +34,19 @@ public class CompetenciesService {
 	}
 
 
-	public void updateCompetencyState(Long id, String newState) {
-	    Competencies competency = getCompetencyById(id);
-		
-	    if (!ALLOWED_STATES.contains(newState)) {
-		logger.log(System.Logger.Level.WARNING, "Invalid state: " + newState);
-		throw new IllegalArgumentException("Invalid state: " + newState);
-	    }
+	public void updateCompetencyState(Integer id, String newState) {
 
-	    if (competency != null) {
-	        competency.setState(newState);
+		if (newState == null) {
+			throw new IllegalArgumentException("State must not be null");
+		}
+
+		if (!ALLOWED_STATES.contains(newState)) {
+			throw new IllegalArgumentException("Invalid state: " + newState);
+		}
+
+		Competencies competency = getCompetencyById(id);
+		competency.setState(newState);
 		competenciesRepository.save(competency);
-		logger.log(System.Logger.Level.INFO, "Updated competency id " + id + " to new state: " + newState);
-	    } else {
-		logger.log(System.Logger.Level.WARNING, "Competency with id " + id + " not found.");
-	    }
-	    
 	}
+
 }

src/test/java/org/zaine/app/service/CompetenciesServiceTest.java

@@ -40,7 +40,7 @@ public class CompetenciesServiceTest {
     @Test
     public void testGetCompetencyByIdReturnsCompetency() {
 	Competencies comp = new Competencies();
-	@NotNull Long id = comp.getId();
+	@NotNull Integer id = comp.getId();
 	when(competenciesRepository.findById(id)).thenReturn(Optional.of(comp));