feat: create an enum to house the AI models

Author: surajkumar

application/src/main/java/org/togetherjava/tjbot/features/chatgpt/ChatGptCommand.java

@@ -2,7 +2,6 @@
 
 import com.github.benmanes.caffeine.cache.Cache;
 import com.github.benmanes.caffeine.cache.Caffeine;
-import com.openai.models.ChatModel;
 import net.dv8tion.jda.api.entities.MessageEmbed;
 import net.dv8tion.jda.api.entities.SelfUser;
 import net.dv8tion.jda.api.events.interaction.ModalInteractionEvent;
@@ -84,7 +83,7 @@ public void onModalSubmitted(ModalInteractionEvent event, List<String> args) {
         String question = event.getValue(QUESTION_INPUT).getAsString();
 
         Optional<String> chatgptResponse = chatGptService.ask(question,
-                "You may use markdown syntax for the response", ChatModel.GPT_5_MINI);
+                "You may use markdown syntax for the response", ChatGptModel.HIGH_QUALITY);
         if (chatgptResponse.isPresent()) {
             userIdToAskedAtCache.put(event.getMember().getId(), Instant.now());
         }

application/src/main/java/org/togetherjava/tjbot/features/chatgpt/ChatGptModel.java

@@ -0,0 +1,42 @@
+package org.togetherjava.tjbot.features.chatgpt;
+
+import com.openai.models.ChatModel;
+
+/**
+ * Logical abstraction over OpenAI chat models.
+ * <p>
+ * This enum allows the application to select models based on performance/quality intent rather than
+ * hard-coding specific OpenAI model versions throughout the codebase.
+ *
+ */
+public enum ChatGptModel {
+    /**
+     * Fastest response time with the lowest computational cost.
+     */
+    FASTEST(ChatModel.GPT_3_5_TURBO),
+
+    /**
+     * Balanced option between speed and quality.
+     */
+    FAST(ChatModel.GPT_4_1_MINI),
+
+    /**
+     * Highest quality responses with increased reasoning capability.
+     */
+    HIGH_QUALITY(ChatModel.GPT_5_MINI);
+
+    private final ChatModel chatModel;
+
+    ChatGptModel(ChatModel chatModel) {
+        this.chatModel = chatModel;
+    }
+
+    public ChatModel toChatModel() {
+        return chatModel;
+    }
+
+    @Override
+    public String toString() {
+        return chatModel.toString();
+    }
+}

application/src/main/java/org/togetherjava/tjbot/features/chatgpt/ChatGptService.java

@@ -2,7 +2,6 @@
 
 import com.openai.client.OpenAIClient;
 import com.openai.client.okhttp.OpenAIOkHttpClient;
-import com.openai.models.ChatModel;
 import com.openai.models.responses.Response;
 import com.openai.models.responses.ResponseCreateParams;
 import com.openai.models.responses.ResponseOutputText;
@@ -56,7 +55,7 @@ public ChatGptService(Config config) {
      * @see <a href="https://platform.openai.com/docs/guides/chat/managing-tokens">ChatGPT
      *      Tokens</a>.
      */
-    public Optional<String> ask(String question, @Nullable String context, ChatModel chatModel) {
+    public Optional<String> ask(String question, @Nullable String context, ChatGptModel chatModel) {
         if (isDisabled) {
             return Optional.empty();
         }
@@ -77,7 +76,7 @@ public Optional<String> ask(String question, @Nullable String context, ChatModel
         String response = null;
         try {
             ResponseCreateParams params = ResponseCreateParams.builder()
-                .model(chatModel)
+                .model(chatModel.toChatModel())
                 .input(inputPrompt)
                 .maxOutputTokens(MAX_TOKENS)
                 .build();

application/src/main/java/org/togetherjava/tjbot/features/help/HelpSystemHelper.java

@@ -1,6 +1,5 @@
 package org.togetherjava.tjbot.features.help;
 
-import com.openai.models.ChatModel;
 import net.dv8tion.jda.api.EmbedBuilder;
 import net.dv8tion.jda.api.entities.Guild;
 import net.dv8tion.jda.api.entities.Member;
@@ -26,6 +25,7 @@
 import org.togetherjava.tjbot.db.generated.tables.HelpThreads;
 import org.togetherjava.tjbot.db.generated.tables.records.HelpThreadsRecord;
 import org.togetherjava.tjbot.features.chatgpt.ChatGptCommand;
+import org.togetherjava.tjbot.features.chatgpt.ChatGptModel;
 import org.togetherjava.tjbot.features.chatgpt.ChatGptService;
 import org.togetherjava.tjbot.features.componentids.ComponentIdInteractor;
 import org.togetherjava.tjbot.features.utils.Guilds;
@@ -144,7 +144,7 @@ RestAction<Message> constructChatGptAttempt(ThreadChannel threadChannel,
         String context =
                 "Category %s on a Java Q&A discord server. You may use markdown syntax for the response"
                     .formatted(matchingTag.getName());
-        chatGptAnswer = chatGptService.ask(question, context, ChatModel.GPT_3_5_TURBO);
+        chatGptAnswer = chatGptService.ask(question, context, ChatGptModel.FAST);
 
         if (chatGptAnswer.isEmpty()) {
             return useChatGptFallbackMessage(threadChannel);

application/src/main/java/org/togetherjava/tjbot/features/moderation/TransferQuestionCommand.java

@@ -1,6 +1,5 @@
 package org.togetherjava.tjbot.features.moderation;
 
-import com.openai.models.ChatModel;
 import net.dv8tion.jda.api.EmbedBuilder;
 import net.dv8tion.jda.api.JDA;
 import net.dv8tion.jda.api.entities.Guild;
@@ -32,6 +31,7 @@
 import org.togetherjava.tjbot.features.BotCommandAdapter;
 import org.togetherjava.tjbot.features.CommandVisibility;
 import org.togetherjava.tjbot.features.MessageContextCommand;
+import org.togetherjava.tjbot.features.chatgpt.ChatGptModel;
 import org.togetherjava.tjbot.features.chatgpt.ChatGptService;
 import org.togetherjava.tjbot.features.utils.StringDistances;
 
@@ -100,7 +100,7 @@ public void onMessageContext(MessageContextInteractionEvent event) {
                 "Summarize the following question into a concise title or heading not more than 5 words, remove quotations if any: %s"
                     .formatted(originalMessage);
         Optional<String> chatGptTitle =
-                chatGptService.ask(chatGptTitleRequest, null, ChatModel.GPT_3_5_TURBO);
+                chatGptService.ask(chatGptTitleRequest, null, ChatGptModel.FASTEST);
         String title = chatGptTitle.orElse(createTitle(originalMessage));
         if (title.startsWith("\"") && title.endsWith("\"")) {
             title = title.substring(1, title.length() - 1);