make it stream

and other changes

README.md

@@ -1,3 +1 @@
-This is a Java library you can write scripts for to support an api with conversational language models
-
-I can't really say much because I'm still working out stuff so see `thinkings` directory
+A scriptable Java library for chatbots

src/main/java/eu/m724/Main.java

@@ -3,20 +3,14 @@ package eu.m724;
 import eu.m724.chat.Chat;
 import eu.m724.chat.ChatEvent;
 import eu.m724.chat.ChatMessage;
-import eu.m724.example.ExampleSource;
 import eu.m724.example.OaiSource;
 import eu.m724.source.ChatResponse;
 import eu.m724.source.ChatSource;
 import eu.m724.source.option.Option;
 
-import java.io.BufferedReader;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.URL;
-import java.nio.charset.StandardCharsets;
-import java.util.*;
-import java.util.stream.Collectors;
-import java.util.stream.LongStream;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.Scanner;
 
 public class Main {
     public static void main(String[] args) throws InterruptedException {
@@ -24,11 +18,13 @@ public class Main {
         //source.options().setValue("name", "nekalakininahappenenawiwanatin");
 
         ChatSource source = new OaiSource(System.getenv("API_KEY"));
-        //source.options().setValue("model", "chatgpt-4o-latest");
+        source.options().setValue("model", "chatgpt-4o-latest");
 
-        Chat chat = new Chat("Speak in uwu wanguage.");
+        Chat chat = new Chat("Speak in super wuper uwu wanguage.");
 
         System.out.println("Welcome to CHUT chat. Say something after the \033[1m>\033[0m, or type \033[1m:help\033[0m to see available commands");
+        System.out.printf("Source: \033[1m%s\033[0m %s (%d) by %s\n", source.info().name(), source.info().versionName(), source.info().version(), source.info().author());
+
         Scanner scanner = new Scanner(System.in);
 
         while (true) {
@@ -45,8 +41,10 @@ public class Main {
                     token = chatResponse.eventQueue().take();
 
                     if (token.finishReason() != "error") {
-                        System.out.print(i++ % 2 == 1 ? "\033[1m" : "\033[0m");
-                        System.out.print(token.text());
+                        if (token.text() != null) {
+                            System.out.print(i++ % 2 == 1 ? "\033[1m" : "\033[0m");
+                            System.out.print(token.text());
+                        }
                     } else {
                         System.out.print("Error: " + token.error().toString());
                     }
@@ -55,24 +53,31 @@ public class Main {
                 System.out.println();
             } else {
                 String[] parts = prompt.substring(1).split(" ");
+                if (parts[0].startsWith(":")) {
+                    System.out.println("If you want to start a message with a \033[1m:\033[0m, you can't");
+                }
 
                 switch (parts[0]) {
                     case "help":
                     case "h":
                     case "":
+                        System.out.println("Source: " + source.getClass().getName());
                         System.out.println("Available commands:");
                         System.out.println(":help - this");
                         System.out.println(":dump - recap of the chat");
                         System.out.println(":opt - change source options");
+                        System.out.println(":system - system prompt");
+                        System.out.println("Most commands have a few abbreviations like \033[1m:s\033[0m or \033[1m:sys\033[0m for :system");
                         break;
                     case "dump":
                     case "d":
+                        int size = chat.messages.size();
+                        System.out.printf("This chat has %d messages, or %d pairs", size, size / 2);
+
                         if (chat.systemPrompt == null) {
-                            System.out.printf("This chat has %d messages.\n", chat.messages.size());
-                            System.out.println("There's no system prompt.");
+                            System.out.println(".\nThere's no system prompt.");
                         } else {
-                            System.out.printf("This chat has %d messages, excluding system prompt.\n", chat.messages.size());
-                            System.out.printf("System prompt:\n\"\"\"%s\"\"\"\n", chat.systemPrompt);
+                            System.out.printf(", excluding system prompt.\nSystem prompt:\n\"\"\"%s\"\"\"\n", chat.systemPrompt);
                         }
                         for (ChatMessage message : chat.messages) {
                             System.out.printf("%s: %s\n", message.assistant() ? "ASSISTANT" : "USER", message.text());
@@ -81,20 +86,66 @@ public class Main {
                     case "options":
                     case "opt":
                     case "o":
-                        if (parts.length < 3 || Arrays.stream(source.options().keys()).noneMatch(parts[1]::equals)) {
+                        boolean shouldShowOptions = parts.length < 3;
+                        boolean optionExists = parts.length > 1 && Arrays.asList(source.options().keys()).contains(parts[1]);
+                        boolean complainNoOption = parts.length > 1 && !optionExists;
+                        String chosenOption = parts.length > 1 ? parts[1] : null;
+
+                        if (!shouldShowOptions) {
+                            Option<?> option = source.options().getOptions().get(parts[1]);
+                            if (option != null) {
+                                Object value = option.fromString(parts[2]);
+                                option.setValue(value);
+                                System.out.printf("Set %s to %s\n", option.label, option.getValue());
+                            } else {
+                                shouldShowOptions = true;
+                                System.out.printf("Unknown option \"%s\". ", parts[1]);
+                            }
+                        }
+
+                        if (shouldShowOptions) {
+                            if (complainNoOption)
+                                System.out.printf("Unknown option \"%s\". ", chosenOption);
                             System.out.println("Available options:");
+
                             for (Map.Entry<String, Option<?>> entry : source.options().getOptions().entrySet()) {
-                                System.out.printf("%s (%s) = %s\n", entry.getValue().label, entry.getKey(), entry.getValue().getValue().toString());
+                                String value = entry.getValue().getValue().toString() + " (" + entry.getValue().getType().getName() + ")";
+
+                                if (entry.getKey().equals(chosenOption)) {
+                                    System.out.printf("\033[1m%s (%s) = %s\033[0m\n", entry.getValue().label, entry.getKey(), value);
+                                } else {
+                                    if (entry.getValue().label.toLowerCase().contains("key")) {
+                                        value = "(looks confidential, specify to see)";
+                                    }
+                                    System.out.printf("%s (%s) = %s\n", entry.getValue().label, entry.getKey(), value);
+                                }
+                            }
+                        }
+
+                        break;
+                    case "system":
+                    case "sys":
+                    case "s":
+                        if (parts.length == 1) {
+                            if (chat.systemPrompt != null) {
+                                System.out.printf("System prompt:\n\033[1m%s\033[0m\n\n", chat.systemPrompt);
+                                System.out.println("Set to \033[1mnull\033[0m to remove");
+                            } else {
+                                System.out.println("No system prompt");
                             }
                         } else {
-                            Option<?> option = source.options().getOptions().get(parts[1]);
-                            Object value = option.fromString(parts[2]);
-                            option.setValue(value);
-                            System.out.printf("Set %s to %s\n", option.label, option.getValue());
+                            System.out.printf("Previous system prompt:\n%s\n\n", chat.systemPrompt);
+                            if (parts[1].equals("null")) {
+                                chat.systemPrompt = null;
+                                System.out.println("System prompt removed");
+                            } else {
+                                chat.systemPrompt = prompt.substring(parts[0].length() + 2).replace("\\n", "\n");
+                                System.out.printf("New system prompt:\n\033[1m%s\033[0m\n", chat.systemPrompt);
+                            }
                         }
                         break;
                     default:
-                        System.out.println("Invalid command: " + parts[0]);
+                        System.out.println("Invalid command: \033[1m" + parts[0] + "\033[0m");
                         break;
                 }
             }

src/main/java/eu/m724/chat/ChatMessage.java

@@ -1,7 +1,7 @@
 package eu.m724.chat;
 
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.Flow;
-
 public record ChatMessage(boolean assistant, String text) {
+    public static ChatMessage assistant(String text) {
+        return new ChatMessage(true, text);
+    }
 }

src/main/java/eu/m724/example/OaiSource.groovy

@@ -1,15 +1,11 @@
 package eu.m724.example
 
 import eu.m724.chat.Chat
-import eu.m724.chat.ChatEvent
-import eu.m724.chat.ChatMessage
 import eu.m724.source.ChatResponse
 import eu.m724.source.ChatSource
 import eu.m724.source.ChatSourceInfo
-import eu.m724.source.NonStreamingChatResponse
 import eu.m724.source.SimpleChatResponse
 import eu.m724.source.option.DoubleOption
-import eu.m724.source.option.NumberOption
 import eu.m724.source.option.Options
 import eu.m724.source.option.StringOption
 import org.json.JSONArray
@@ -18,9 +14,6 @@ import org.json.JSONObject
 import java.net.http.HttpClient
 import java.net.http.HttpRequest
 import java.net.http.HttpResponse
-import java.util.concurrent.CompletableFuture
-import java.util.concurrent.LinkedBlockingQueue
-
 // for now let's not focus on readability
 // this is more about find out what is common and should be included in the common api
 class OaiSource implements ChatSource {
@@ -36,7 +29,7 @@ class OaiSource implements ChatSource {
     private def options = new Options(
             new StringOption("apiKey", "API key", apiKey),
             new StringOption("model", "Model", "gpt-4o-mini"),
-            new DoubleOption("temperature", "Temperature", 1.2)
+            new DoubleOption("temperature", "Temperature", 1.1)
     )
 
     @Override
@@ -56,7 +49,7 @@ class OaiSource implements ChatSource {
                 .put("model", options.getStringValue("model"))
                 .put("temperature", options.getOptionValue("temperature", Double::class))
                 .put("presence_penalty", 0.1)
-                .put("frequency_penalty", 0.1)
+                .put("stream", true)
                 .put("messages", formatChat(chat)).toString()
 
         def request = HttpRequest.newBuilder()
@@ -68,9 +61,10 @@ class OaiSource implements ChatSource {
 
         def client = HttpClient.newHttpClient()
 
-        ChatResponse chatResponse = new NonStreamingChatResponse()
+        def chatResponse = new SimpleChatResponse()
+
+        def response = client.sendAsync(request, HttpResponse.BodyHandlers.ofLines())
 
-        def response = client.sendAsync(request, HttpResponse.BodyHandlers.ofString())
 
         response.thenAccept {
             Exception exception = null
@@ -79,6 +73,30 @@ class OaiSource implements ChatSource {
                 exception = new Exception("Non 200 status code: %d".formatted(it.statusCode()))
             }
 
+            it.body().forEach {
+                //System.out.println(it);
+                for (String line : it.split("\n")) {
+                    if (line.startsWith("data: ")) {
+                        def data = line.substring(6)
+
+                        if (data != "[DONE]") {
+                            def json = new JSONObject(data)
+                            def choice = json.getJSONArray("choices").getJSONObject(0)
+                            def finishReason = choice.get("finish_reason")
+
+                            if (finishReason != JSONObject.NULL) {
+                                //System.out.println("ending");
+                                chatResponse.end(finishReason.toString())
+                            } else {
+                                def token = choice.getJSONObject("delta").getString("content")
+                                chatResponse.put(token)
+                            }
+                        }
+                    }
+                }
+            }
+/*
+
             if (exception != null) {
                 chatResponse.completeExceptionally(exception)
             } else {
@@ -86,7 +104,7 @@ class OaiSource implements ChatSource {
                 //System.out.println(json)
                 def completion = json.getJSONArray("choices").getJSONObject(0).getJSONObject("message").getString("content")
                 chatResponse.complete(completion)
-            }
+            }*/
 
         }
 

src/main/java/eu/m724/source/ChatSource.java

@@ -1,7 +1,6 @@
 package eu.m724.source;
 
 import eu.m724.chat.Chat;
-import eu.m724.source.option.Option;
 import eu.m724.source.option.Options;
 
 public interface ChatSource {
@@ -33,6 +32,25 @@ public interface ChatSource {
     default ChatResponse ask(Chat chat) {
         ChatResponse chatResponse = onAsked(chat);
 
+        /* if (chatResponse.streaming()) {
+            StringBuilder total = new StringBuilder();
+            CompletableFuture.runAsync(() -> {
+                ChatEvent event;
+                while (true) {
+                    try {
+                        event = chatResponse.eventQueue().take();
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
+                    total.append(event.text());
+                    if (event.finishReason() != null) {
+                        chatResponse.message().complete(new ChatMessage(true, total.toString()));
+                        break;
+                    }
+                }
+            });
+        } this was a draft I'm keeping because I might change my mind */
+
         // TODO make sure it works in parallel
         chatResponse.message().thenAccept(message -> {
             if (message != null) chat.addMessage(message);

src/main/java/eu/m724/source/NonStreamingChatResponse.java

@@ -7,8 +7,8 @@ import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.LinkedBlockingQueue;
 
 public class NonStreamingChatResponse implements ChatResponse {
-    private LinkedBlockingQueue<ChatEvent> eventQueue = new LinkedBlockingQueue<>();
-    private CompletableFuture<ChatMessage> message = new CompletableFuture<>();
+    private final LinkedBlockingQueue<ChatEvent> eventQueue = new LinkedBlockingQueue<>();
+    private final CompletableFuture<ChatMessage> message = new CompletableFuture<>();
 
     @Override
     public boolean streaming() {

src/main/java/eu/m724/source/SimpleChatResponse.java

@@ -6,6 +6,57 @@ import eu.m724.chat.ChatMessage;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.LinkedBlockingQueue;
 
-public record SimpleChatResponse(boolean streaming, LinkedBlockingQueue<ChatEvent> eventQueue,
-                                 CompletableFuture<ChatMessage> message) implements ChatResponse {
+public class SimpleChatResponse implements ChatResponse {
+    private final boolean streaming;
+    private final LinkedBlockingQueue<ChatEvent> eventQueue;
+    private final CompletableFuture<ChatMessage> message;
+
+    private String total = "";
+
+    public SimpleChatResponse() {
+        this.streaming = true;
+        this.eventQueue = new LinkedBlockingQueue<>();
+        this.message = new CompletableFuture<>();
+    }
+
+    public void put(String token, String finishReason) {
+        //System.out.println(System.currentTimeMillis());
+
+        try {
+            eventQueue.put(ChatEvent.of(token, finishReason));
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e); // TODO I don't know what this is
+        }
+
+        if (token != null) {
+            total += token;
+        }
+
+        if (finishReason != null) {
+            message.complete(ChatMessage.assistant(total));
+        }
+    }
+
+    public void put(String token) {
+        put(token, null);
+    }
+
+    public void end(String finishReason) {
+        put(null, finishReason);
+    }
+
+    @Override
+    public boolean streaming() {
+        return streaming;
+    }
+
+    @Override
+    public LinkedBlockingQueue<ChatEvent> eventQueue() {
+        return eventQueue;
+    }
+
+    @Override
+    public CompletableFuture<ChatMessage> message() {
+        return message;
+    }
 }

thinkings/thinking.txt

@@ -3,6 +3,10 @@ so, the api is mostly good now, but new things to focus on:
 - how to do requests
 - how to make it friendly
 
+delay
+right now streaming seems delayed and batched, I don't know why
+maybe it's just me
+
 network
 every platform has different libraries for that, so abstraction
 how? I still don't know