chore: Refactor DatasetController and DatasetService

This commit refactors the `DatasetController` and `DatasetService` classes. It updates the request mappings in the `DatasetController` class to `/api/v1/datasets` and adds new methods for upvoting and downvoting datasets. In the `DatasetService` class, it adds the `upvoteDataset` and `downvoteDataset` methods to handle dataset upvoting and downvoting. This refactoring improves code organization and functionality.

src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/controler/DatasetController.java

@@ -1,25 +1,23 @@
 package de.uni_passau.fim.PADAS.group3.DataDash.controler;
 
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.domain.Page;
 import org.springframework.web.bind.annotation.*;
 
 import de.uni_passau.fim.PADAS.group3.DataDash.model.Dataset;
 import de.uni_passau.fim.PADAS.group3.DataDash.model.DatasetService;
-
+import de.uni_passau.fim.PADAS.group3.DataDash.model.Type;
 import java.util.List;
 import java.util.UUID;
-import de.uni_passau.fim.PADAS.group3.DataDash.model.Type;
-
-import javax.swing.text.html.HTML;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 
 
 
-    @RestController
-    @RequestMapping("/api/datasets")
-    public class DatasetController {
+
+
+@RestController
+@RequestMapping("/api/v1/datasets")
+public class DatasetController {
     @Autowired
     private DatasetService datasetService;
     
@@ -81,4 +79,17 @@ import org.springframework.web.bind.annotation.RequestParam;
         return datasetService.getDatasetsByRaitingGreaterThan(rating);
     }
 
+    @PostMapping("/id/{id}/upvote")
+    public Dataset upvote(@PathVariable("id") UUID id) {
+        datasetService.upvoteDataset(id);        
+        return null;
+    }
+
+    @PostMapping("/id/{id}/downvote")
+    public Dataset downvote(@PathVariable("id") UUID id) {
+        datasetService.downvoteDataset(id);
+        return null; //new ResponseEntity<>(null, HttpStatus.OK);
+    }
+
+
 }

src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/Dataset.java

@@ -33,12 +33,15 @@ public class Dataset {
 
     private int votes;
 
+    private int upvotes;
+
     private String[] categories;
 
     public Dataset(String title, String abst, String description, String author, Date date, String[] categories, Type type) {
 
         this.raiting = 0;
         this.votes = 0;
+        this.upvotes = 0;
         setTitle(title);
         setAbst(abst);        
         setDescription(description);        
@@ -92,6 +95,10 @@ public class Dataset {
         return votes;
     }
 
+    public int getUpvotes() {
+        return upvotes;
+    }
+
     public void setAbst(String abst) {
         this.abst = abst.substring(0, Math.min(abst.length(), 100));
     }
@@ -124,4 +131,12 @@ public class Dataset {
         raiting = (raiting*votes + stars) / (++votes);
     }
 
+    public void upvote() {
+        upvotes++;
+    }
+
+    public void downvote() {
+        upvotes--;
+    }
+
 }

src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/DatasetService.java

@@ -2,14 +2,12 @@ package de.uni_passau.fim.PADAS.group3.DataDash.model;
 import java.util.List;
 import java.util.UUID;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 @Service
 public class DatasetService {
     private dataRepository datasetRepository;
 
-    @Autowired
     public DatasetService(dataRepository datasetRepository) {
         this.datasetRepository = datasetRepository;
     }
@@ -62,4 +60,16 @@ public class DatasetService {
     public List<Dataset> getDatasetsByRaitingGreaterThan(float raiting) {
         return datasetRepository.findByRaitingGreaterThan(raiting);
     }
+
+    public void upvoteDataset(UUID id) {
+        Dataset dataset = datasetRepository.getDatasetById(id);
+        dataset.upvote();
+        datasetRepository.save(dataset);
+    }
+
+    public void downvoteDataset(UUID id) {
+        Dataset dataset = datasetRepository.getDatasetById(id);
+        dataset.downvote();
+        datasetRepository.save(dataset);
+    }
 }