Adding terminal messenger

This is a golang based application that connects to the basic messenger

terminal-messenger/application/main.go

@@ -0,0 +1,196 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/chzyer/readline"
+)
+
+const (
+	apiURL     = "https://router.ivastudio.verint.live/ProxyScript/run/67bca862210071627d32ef12/current/basic_messenger"
+	colorReset = "\033[0m"
+	colorBlue  = "\033[34m"
+	colorGreen = "\033[32m"
+)
+
+type Metadata struct {
+	Channel string `json:"channel"`
+}
+
+type Message struct {
+	Input              string   `json:"input"`
+	Model              string   `json:"model"`
+	PreviousResponseID string   `json:"previous_response_id,omitempty"`
+	Metadata           Metadata `json:"metadata"`
+}
+
+type ContentItem struct {
+	Type        string   `json:"type"`
+	Text        string   `json:"text"`
+	Annotations []string `json:"annotations"`
+}
+
+type OutputMessage struct {
+	Type    string        `json:"type"`
+	ID      string        `json:"id"`
+	Role    string        `json:"role"`
+	Content []ContentItem `json:"content"`
+}
+
+type Response struct {
+	ID        string          `json:"id"`
+	Object    string          `json:"object"`
+	CreatedAt int64           `json:"created_at"`
+	Status    string          `json:"status"`
+	Model     string          `json:"model"`
+	Output    []OutputMessage `json:"output"`
+}
+
+type Messenger struct {
+	client             *http.Client
+	model              string
+	previousResponseID string
+}
+
+func NewMessenger(model string) *Messenger {
+	return &Messenger{
+		client: &http.Client{
+			Timeout: 10 * time.Second,
+		},
+		model: model,
+	}
+}
+
+func (m *Messenger) sendRequest(input string) (*Response, error) {
+	msg := Message{
+		Input:              input,
+		Model:              m.model,
+		PreviousResponseID: m.previousResponseID,
+		Metadata: Metadata{
+			Channel: "text",
+		},
+	}
+
+	jsonData, err := json.Marshal(msg)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal JSON: %w", err)
+	}
+
+	req, err := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := m.client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	var response Response
+	if err := json.Unmarshal(body, &response); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
+	}
+
+	// Update previous response ID for conversation continuity
+	if response.ID != "" {
+		m.previousResponseID = response.ID
+	}
+
+	return &response, nil
+}
+
+func (m *Messenger) SendMessage(text string) (string, error) {
+	resp, err := m.sendRequest(text)
+	if err != nil {
+		return "", err
+	}
+
+	if resp.Status != "completed" {
+		return "", fmt.Errorf("response status: %s", resp.Status)
+	}
+
+	// Extract text from the response output
+	if len(resp.Output) > 0 && len(resp.Output[0].Content) > 0 {
+		return resp.Output[0].Content[0].Text, nil
+	}
+
+	return "", fmt.Errorf("no output received")
+}
+
+func printHeader() {
+	fmt.Println("=== Terminal Messenger ===")
+	fmt.Println("Type your message (or 'quit' to exit)")
+	fmt.Println("Use ↑/↓ arrows to navigate history")
+	fmt.Println("==========================")
+	fmt.Println()
+}
+
+func main() {
+	// Get model
+	fmt.Print("Enter model name (default: 'default'): ")
+	var model string
+	fmt.Scanln(&model)
+
+	if model == "" {
+		model = "default"
+	}
+
+	messenger := NewMessenger(model)
+
+	printHeader()
+
+	// Setup readline for input history and line editing
+	rl, err := readline.NewEx(&readline.Config{
+		Prompt:          colorBlue + "You: " + colorReset,
+		HistoryFile:     "/tmp/messenger_history.tmp",
+		InterruptPrompt: "^C",
+		EOFPrompt:       "exit",
+	})
+	if err != nil {
+		fmt.Printf("Error setting up readline: %v\n", err)
+		return
+	}
+	defer rl.Close()
+
+	// Main message loop
+	for {
+		input, err := rl.Readline()
+		if err != nil { // io.EOF or readline.ErrInterrupt
+			break
+		}
+
+		input = strings.TrimSpace(input)
+
+		if input == "quit" || input == "exit" {
+			break
+		}
+
+		if input == "" {
+			continue
+		}
+
+		response, err := messenger.SendMessage(input)
+		if err != nil {
+			fmt.Printf("Error: %v\n", err)
+			continue
+		}
+
+		fmt.Printf(colorGreen+"Assistant: %s"+colorReset+"\n\n", response)
+	}
+
+	fmt.Println("\nGoodbye!")
+}