Picker includes Order Mode now. Several Changes

src/logic_reiheAPicker/ChatGPTApiCallerClass.java

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+package logic_reiheAPicker;
+
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class ChatGPTApiCallerClass {
+
+	public static String chatGPT(String prompt) {
+		
+	    String url = "https://api.openai.com/v1/chat/completions";
+	    String apiKey = var_reiheAPicker.Constants.ChatGPTApiKey;
+	    String model = "gpt-4o";
+	    prompt = "You are assessing the relevance of books for a school-focused educational library. " +
+	            "The target audience includes students and educators in all school-related disciplines (such as mathematics, science, languages, history, geography, social studies, arts, physical education, computer science, etc.). " +
+	            "Your task is to rate each book's relevance using this fixed output format: " +
+	            "'87; highly relevant but in English.' " +
+	            "Format rules: " +
+	            "- First, a number from 0 to 100 indicating the relevance. " +
+	            "- Then, a short explanation in plain language. " +
+	            "- Only use German or English titles. " +
+	            "- German books are preferred. " +
+	            "- English books are acceptable only if highly relevant. " +
+	            "- Ignore books in other languages (output: '0; not in German or English.') " +
+	            "Always follow this format. Don’t include anything else. " +
+	            "Now evaluate the following title: " + prompt; try {
+			Thread.sleep(3000);
+		} catch (InterruptedException e1) {
+			// TODO Auto-generated catch block
+			e1.printStackTrace();
+		}
+	    
+	    HttpURLConnection connection = null;
+
+	    try {
+	        URL obj = new URL(url);
+	        connection = (HttpURLConnection) obj.openConnection();
+	        connection.setRequestMethod("POST");
+	        connection.setRequestProperty("Authorization", "Bearer " + apiKey);
+	        connection.setRequestProperty("Content-Type", "application/json");
+
+	        // The request body
+	        String body = "{\"model\": \"" + model + "\", \"messages\": [{\"role\": \"user\", \"content\": \"" + prompt + "\"}]}";
+
+	        connection.setDoOutput(true);
+	        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
+	        writer.write(body);
+	        writer.flush();
+	        writer.close();
+
+	        // Response from ChatGPT
+	        BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+	        String line;
+	        StringBuilder response = new StringBuilder();
+
+	        while ((line = br.readLine()) != null) {
+	            response.append(line);
+	        }
+	        br.close();
+
+	        // Call the method to extract the message
+	        return extractMessageFromJSONResponse(response.toString());
+
+	    } catch (IOException e) {
+	        // Handle errors and print the API response if available
+	        if (connection != null) {
+	            try {
+	                InputStream errorStream = connection.getErrorStream();
+	                if (errorStream != null) {
+	                    BufferedReader errorReader = new BufferedReader(new InputStreamReader(errorStream));
+	                    StringBuilder errorResponse = new StringBuilder();
+	                    String line;
+	                    while ((line = errorReader.readLine()) != null) {
+	                        errorResponse.append(line);
+	                    }
+	                    errorReader.close();
+	                    System.err.println("Error response from OpenAI API: " + errorResponse.toString());
+	                    // Log and continue without throwing
+	                    return "skipped due to error"; // Or handle it gracefully based on your program's needs
+	                }
+	            } catch (IOException ex) {
+	                System.err.println("Failed to read error stream from OpenAI API");
+	                ex.printStackTrace();
+	                // Log and continue without throwing
+	                return "skipped due to error"; // Or handle it gracefully
+	            }
+	        }
+	        System.err.println("Error occurred while connecting to OpenAI API: " + e.getMessage());
+	        e.printStackTrace();
+	        // Log and continue without throwing
+	        return "skipped due to error"; // Or handle it gracefully
+	    }
+	}
+
+   public static String extractMessageFromJSONResponse(String response) {
+       int start = response.indexOf("content")+ 11;
+
+       int end = response.indexOf("\"", start);
+
+       return response.substring(start, end);
+
+   }
+  
+}