Adding terminal messenger

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

terminal-messenger/application/README.md

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+# Terminal Messenger
+
+A simple, colorful terminal-based messenger application written in Go that connects to a remote messaging endpoint.
+
+## Features
+
+- 🎨 **Colorized output** - Blue for your input, green for assistant responses
+- ⌨️ **Input history** - Navigate previous messages with arrow keys
+- 💬 **Conversation context** - Maintains conversation continuity across messages
+- 🚀 **Simple and fast** - Minimal setup, quick startup
+- 📝 **Line editing** - Full cursor movement and text editing support
+
+## Prerequisites
+
+- Go 1.16 or higher
+- Internet connection
+
+## Installation
+
+1. **Clone or download the project**
+
+2. **Initialize Go module**
+
+   ```bash
+   go mod init messenger
+   ```
+
+3. **Install dependencies**
+
+   ```bash
+   go get github.com/chzyer/readline
+   ```
+
+4. **Build the application (optional)**
+   ```bash
+   go build -o messenger main.go
+   ```
+
+## Usage
+
+### Running the application
+
+**Using go run:**
+
+```bash
+go run main.go
+```
+
+**Or if you built the binary:**
+
+```bash
+./messenger
+```
+
+### Getting started
+
+1. When prompted, enter a model name (or press Enter for "default")
+2. Start typing your messages
+3. The assistant will respond to each message
+4. Use arrow keys to navigate through your input history
+5. Type `quit` or `exit` to end the session
+
+### Keyboard shortcuts
+
+- **↑ (Up arrow)** - Navigate to previous input
+- **↓ (Down arrow)** - Navigate to next input
+- **←/→ (Left/Right arrows)** - Move cursor within current input
+- **Ctrl+A** - Jump to beginning of line
+- **Ctrl+E** - Jump to end of line
+- **Ctrl+C** - Interrupt/exit application
+
+## Configuration
+
+The application connects to:
+
+```
+https://router.ivastudio.verint.live/ProxyScript/run/67bca862210071627d32ef12/current/basic_messenger
+```
+
+To change the endpoint, modify the `apiURL` constant in `main.go`.
+
+### Request format
+
+The application sends POST requests with the following JSON structure:
+
+```json
+{
+  "input": "your message here",
+  "model": "model name",
+  "previous_response_id": "previous response ID for context",
+  "metadata": {
+    "channel": "text"
+  }
+}
+```
+
+### Response format
+
+Expected response structure:
+
+```json
+{
+  "id": "response-id",
+  "object": "response",
+  "created_at": 1234567890,
+  "status": "completed",
+  "model": "Model Name",
+  "output": [
+    {
+      "type": "message",
+      "id": "message-id",
+      "role": "assistant",
+      "content": [
+        {
+          "type": "output_text",
+          "text": "Assistant response here",
+          "annotations": []
+        }
+      ]
+    }
+  ]
+}
+```
+
+## Project Structure
+
+```
+.
+├── main.go              # Main application file
+├── go.mod               # Go module file
+└── README.md            # This file
+```
+
+## Troubleshooting
+
+### Connection errors
+
+If you encounter connection errors, check:
+
+- Your internet connection
+- The endpoint URL is accessible
+- Firewall settings aren't blocking the connection
+
+### Module errors
+
+If you get "module not found" errors:
+
+```bash
+go mod tidy
+```
+
+### History file permissions
+
+The app creates a history file at `/tmp/messenger_history.tmp`. If you encounter permission errors, ensure you have write access to `/tmp/`.
+
+## Dependencies
+
+- [github.com/chzyer/readline](https://github.com/chzyer/readline) - For input history and line editing
+
+## License
+
+This project is provided as-is for educational and development purposes.
+
+## Contributing
+
+Feel free to submit issues, fork the repository, and create pull requests for any improvements.

terminal-messenger/application/go.mod

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+module messenger
+
+go 1.24.6
+
+require (
+	github.com/chzyer/readline v1.5.1 // indirect
+	golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5 // indirect
+)

terminal-messenger/application/go.sum

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+github.com/chzyer/logex v1.2.1/go.mod h1:JLbx6lG2kDbNRFnfkgvh4eRJRPX1QCoOIWomwysCBrQ=
+github.com/chzyer/readline v1.5.1 h1:upd/6fQk4src78LMRzh5vItIt361/o4uq553V8B5sGI=
+github.com/chzyer/readline v1.5.1/go.mod h1:Eh+b79XXUwfKfcPLepksvw2tcLE/Ct21YObkaSkeBlk=
+github.com/chzyer/test v1.0.0/go.mod h1:2JlltgoNkt4TW/z9V/IzDdFaMTM2JPIi26O1pF38GC8=
+golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5 h1:y/woIyUBFbpQGKS0u1aHF/40WUDnek3fPOyD08H5Vng=
+golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

terminal-messenger/application/main.go

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+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!")
+}