Merge branch 'develop' into multiplayer-bugs-fixing

src/main/java/com/uniovi/WiqEs04bApplication.java

@@ -2,8 +2,10 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableScheduling;
 
 @SpringBootApplication
+@EnableScheduling
 public class WiqEs04bApplication {
     public static void main(String[] args) {
         SpringApplication.run(WiqEs04bApplication.class, args);

src/main/java/com/uniovi/components/generators/QuestionGenerator.java

@@ -1,5 +1,6 @@
 package com.uniovi.components.generators;
 
+import com.fasterxml.jackson.databind.JsonNode;
 import com.uniovi.entities.Category;
 import com.uniovi.entities.Question;
 import org.springframework.stereotype.Component;
@@ -9,11 +10,7 @@
 
 @Component
 public interface QuestionGenerator {
+    List<Question> getQuestions(String language) throws IOException, InterruptedException;
 
-    String getQuery();
-    List<Question> getQuestions() throws InterruptedException, IOException;
-
-    Category getCategory();
-
-
+    List<Question> getQuestions(String language, JsonNode question, Category cat) throws IOException, InterruptedException;
 }

src/main/java/com/uniovi/components/generators/QuestionGeneratorV2.java

@@ -0,0 +1,163 @@
+package com.uniovi.components.generators;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.uniovi.dto.AnswerDto;
+import com.uniovi.dto.CategoryDto;
+import com.uniovi.dto.QuestionDto;
+import com.uniovi.entities.Answer;
+import com.uniovi.entities.Category;
+import com.uniovi.entities.Question;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URLEncoder;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+import java.security.SecureRandom;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+public class QuestionGeneratorV2 implements QuestionGenerator{
+
+    private JsonNode jsonNode;
+    private String language_placeholder;
+    private String question_placeholder;
+    private String answer_placeholder;
+    private String language;
+
+    private Random random = new SecureRandom();
+
+    public QuestionGeneratorV2(JsonNode jsonNode) {
+        this.jsonNode = jsonNode;
+        this.language_placeholder = jsonNode.get("language_placeholder").textValue();
+        this.question_placeholder = jsonNode.get("question_placeholder").textValue();
+        this.answer_placeholder = jsonNode.get("answer_placeholder").textValue();
+    }
+
+    @Override
+    public List<Question> getQuestions(String language) throws IOException, InterruptedException {
+        this.language = language;
+        List<Question> questions = new ArrayList<>();
+        JsonNode categories = jsonNode.findValue("categories");
+        for(JsonNode category : categories){
+            String categoryName = category.get("name").textValue();
+            Category cat = new Category(categoryName);
+            JsonNode questionsNode = category.findValue("questions");
+            for(JsonNode question : questionsNode){
+                questions.addAll(this.generateQuestion(question, cat));
+            }
+        }
+        return questions;
+    }
+
+    @Override
+    public List<Question> getQuestions(String language, JsonNode question, Category cat) throws IOException, InterruptedException {
+        this.language = language;
+        return this.generateQuestion(question, cat);
+    }
+
+    private List<Question> generateQuestion(JsonNode question, Category cat) throws IOException, InterruptedException {
+        // Get the SPARQL query from the JSON
+        String query = question.get("sparqlQuery").textValue();
+
+        // Get the question and answer words from the JSON
+        String questionLabel = question.get("question").textValue();
+        String answerLabel= question.get("answer").textValue();
+
+        // Replace the placeholders in the query with the actual values
+        query = query.replace(language_placeholder, language).
+                replace(question_placeholder, questionLabel).
+                replace(answer_placeholder, answerLabel);
+
+        // Execute the query and get the results
+        JsonNode results = getQueryResult(query);
+        List<Question> questions = new ArrayList<>();
+
+        // Prepare the statement base based on the language
+        String statement = this.prepareStatement(question);
+
+        for (JsonNode result : results) {
+            // Generate the correct answer
+            String correctAnswer = result.path(answerLabel).path("value").asText();
+            Answer correct = new Answer(correctAnswer, true);
+
+            // Generate the options
+            List<Answer> options = this.generateOptions(results, correctAnswer, answerLabel);
+            options.add(correct);
+
+            if (statement != null) {
+                // Generate the question statement
+                String questionStatement = statement.replace(question_placeholder, result.path(questionLabel).path("value").asText());
+
+                // Generate the question
+                Question q = new Question(questionStatement, options, correct, cat, language);
+
+                // Add the question to the list
+                questions.add(q);
+            }
+        }
+        return questions;
+    }
+
+    private List<Answer> generateOptions(JsonNode results, String correctAnswer, String answerLabel) {
+        List<Answer> options = new ArrayList<>();
+        List<String> usedOptions = new ArrayList<>();
+        int size = results.size();
+        int tries = 0;
+
+       while (options.size() < 3 && tries < 10) {
+            int random = (int) (this.random.nextFloat() * size);
+            String option = results.get(random).path(answerLabel).path("value").asText();
+            if (!option.equals(correctAnswer) && !usedOptions.contains(option) ) {
+                usedOptions.add(option);
+                options.add(new Answer(option, false));
+            }
+            tries++;
+        }
+        return options;
+    }
+
+    /**
+     * Generates a statement based on the language of the question
+     * @param question The question node
+     * @return The statement in the language of the question or null if the language is not found
+     */
+    private String prepareStatement(JsonNode question) {
+        JsonNode statementNode = question.findValue("statements");
+        for (JsonNode statement : statementNode) {
+            if (statement.get("language").textValue().equals(language)) {
+                return statement.get("statement").textValue();
+            }
+        }
+        return null;
+    }
+
+    private JsonNode getQueryResult(String query) throws IOException, InterruptedException {
+
+        System.out.println("Query: " + query);
+        HttpClient client = HttpClient.newHttpClient();
+        JsonNode resultsNode;
+        String endpointUrl = "https://query.wikidata.org/sparql?query=" +
+                URLEncoder.encode(query, StandardCharsets.UTF_8) +
+                "&format=json";
+
+        HttpRequest request = HttpRequest.newBuilder()
+                .uri(URI.create(endpointUrl))
+                .header("Accept", "application/json")
+                .build();
+
+        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+
+        // Process the JSON response using Jackson ObjectMapper
+        ObjectMapper objectMapper = new ObjectMapper();
+        JsonNode jsonResponse = objectMapper.readTree(response.body());
+
+        // Access the data from the JSON response
+        resultsNode = jsonResponse.path("results").path("bindings");
+        return resultsNode;
+    }
+}