Treat the system message like any other

Removed the system parameter on ChatCopmletion functions, and persist it
in conversations as well.

pkg/cli/cmd.go

@@ -84,17 +84,26 @@ var newCmd = &cobra.Command{
 			Fatal("Could not save new conversation: %v\n", err)
 		}
 
-		message := Message{
-			ConversationID:  conversation.ID,
-			Role:            "user",
-			OriginalContent: messageContents,
+		const system = "You are a helpful assistant."
+		messages := []Message{
+			{
+				ConversationID:  conversation.ID,
+				Role:            "system",
+				OriginalContent: system,
+			},
+			{
+				ConversationID:  conversation.ID,
+				Role:            "user",
+				OriginalContent: messageContents,
+			},
 		}
-		err = store.SaveMessage(&message)
-		if err != nil {
-			Warn("Could not save message: %v\n", err)
+		for _, message := range(messages) {
+			err = store.SaveMessage(&message)
+			if err != nil {
+				Warn("Could not save %s message: %v\n", message.Role,  err)
+			}
 		}
 
-		const system = "You are a helpful assistant."
 		fmt.Printf("<System>\n\n%s\n\n", system)
 		fmt.Printf("<You>\n\n%s\n\n", messageContents)
 		fmt.Print("<Assistant>\n\n")
@@ -105,7 +114,7 @@ var newCmd = &cobra.Command{
 			response <- HandleDelayedResponse(receiver)
 		}()
 
-		err = CreateChatCompletionStream(system, []Message{message}, receiver)
+		err = CreateChatCompletionStream(messages, receiver)
 		if err != nil {
 			Fatal("%v\n", err)
 		}
@@ -134,7 +143,12 @@ var promptCmd = &cobra.Command{
 			Fatal("No message was provided.\n")
 		}
 
+		const system = "You are a helpful assistant."
 		messages := []Message{
+			{
+				Role:            "system",
+				OriginalContent: system,
+			},
 			{
 				Role:            "user",
 				OriginalContent: message,
@@ -143,7 +157,7 @@ var promptCmd = &cobra.Command{
 
 		receiver := make(chan string)
 		go HandleDelayedResponse(receiver)
-		err := CreateChatCompletionStream("You are a helpful assistant.", messages, receiver)
+		err := CreateChatCompletionStream(messages, receiver)
 		if err != nil {
 			Fatal("%v\n", err)
 		}

pkg/cli/openai.go

@@ -8,14 +8,8 @@ import (
 	openai "github.com/sashabaranov/go-openai"
 )
 
-func CreateChatCompletionRequest(system string, messages []Message) *openai.ChatCompletionRequest {
-	chatCompletionMessages := []openai.ChatCompletionMessage{
-		{
-			Role:    "system",
-			Content: system,
-		},
-	}
-
+func CreateChatCompletionRequest(messages []Message) *openai.ChatCompletionRequest {
+	chatCompletionMessages := []openai.ChatCompletionMessage{}
 	for _, m := range messages {
 		chatCompletionMessages = append(chatCompletionMessages, openai.ChatCompletionMessage{
 			Role:    m.Role,
@@ -33,11 +27,11 @@ func CreateChatCompletionRequest(system string, messages []Message) *openai.Chat
 
 // CreateChatCompletion accepts a slice of Message and returns the response
 // of the Large Language Model.
-func CreateChatCompletion(system string, messages []Message) (string, error) {
+func CreateChatCompletion(messages []Message) (string, error) {
 	client := openai.NewClient(config.OpenAI.APIKey)
 	resp, err := client.CreateChatCompletion(
 		context.Background(),
-		*CreateChatCompletionRequest(system, messages),
+		*CreateChatCompletionRequest(messages),
 	)
 
 	if err != nil {
@@ -49,11 +43,11 @@ func CreateChatCompletion(system string, messages []Message) (string, error) {
 
 // CreateChatCompletionStream submits an streaming Chat Completion API request
 // and sends the received data to the output channel.
-func CreateChatCompletionStream(system string, messages []Message, output chan string) error {
+func CreateChatCompletionStream(messages []Message, output chan string) error {
 	client := openai.NewClient(config.OpenAI.APIKey)
 	ctx := context.Background()
 
-	req := CreateChatCompletionRequest(system, messages)
+	req := CreateChatCompletionRequest(messages)
 	req.Stream = true
 
 	defer close(output)