Add version checking and update notification feature

- Introduced version management with a new version package.
- Implemented update check functionality in the model.
- Updated import paths to reflect the new module structure.
- Enhanced README with build and run instructions for different platforms.

Author: sametcn99

README.md

@@ -1,5 +1,7 @@
 # Golter
 
+![Logo](https://golter.sametcc.me/opengraph-image)
+
 Terminal-based file converter built with Go. It provides a modern, user-friendly Terminal User Interface (TUI) for batch converting images, videos, audio, and documents between various formats.
 
 ## Features
@@ -128,6 +130,8 @@ sudo pacman -S ffmpeg
 
 # Build
 go build -o golter main.go
+
+# Run
 ./golter
 ```
 
@@ -137,8 +141,13 @@ go build -o golter main.go
 <summary><b>macOS</b></summary>
 
 ```bash
+# Install ffmpeg
 brew install ffmpeg
+
+# Build
 go build -o golter main.go
+
+# Run
 ./golter
 ```
 
@@ -156,6 +165,8 @@ choco install ffmpeg
 
 # Build
 go build -o golter.exe main.go
+
+# Run
 .\golter.exe
 ```
 
@@ -194,19 +205,6 @@ Start in a specific directory:
 | `Esc`     | Go back / Cancel              |
 | `q`       | Quit application              |
 
-### Workflow
-
-1. **Navigate:** Browse your file system using arrow keys or Vim bindings
-2. **Select:** Press `Space` to mark files (files must be of the same type)
-3. **Confirm:** Press `c` when done selecting files
-4. **Choose Action:**
-   - **Convert Format:** Change file format (e.g., JPG → PNG)
-   - **Compress Files:** Reduce size while keeping format
-5. **Configure:**
-   - **Convert:** Select target format
-   - **Compress:** Choose quality level
-6. **Process:** Watch the progress as files are converted concurrently
-
 ## License
 
 [GPL-3.0](LICENSE)

go.mod

@@ -1,4 +1,4 @@
-module golter
+module github.com/sametcn99/golter
 
 go 1.24.4
 

internal/tui/model.go

@@ -9,7 +9,8 @@ import (
 	"sync/atomic"
 	"time"
 
-	"golter/internal/converter"
+	"github.com/sametcn99/golter/internal/converter"
+	"github.com/sametcn99/golter/internal/version"
 
 	"github.com/charmbracelet/bubbles/progress"
 	"github.com/charmbracelet/bubbles/spinner"
@@ -72,6 +73,13 @@ type progressMsg struct {
 
 type tickMsg time.Time
 
+type checkUpdateMsg struct {
+	latest    string
+	url       string
+	available bool
+	err       error
+}
+
 // Model represents the main application model
 type Model struct {
 	state           State
@@ -96,6 +104,9 @@ type Model struct {
 	width           int
 	height          int
 	startTime       time.Time
+	latestVersion   string
+	updateUrl       string
+	updateAvailable bool
 }
 
 // NewModel creates a new Model with initial configuration
@@ -165,9 +176,15 @@ func statFile(path string) (os.FileInfo, error) {
 func (m Model) Init() tea.Cmd {
 	return tea.Batch(
 		m.spinner.Tick,
+		checkUpdatesCmd,
 	)
 }
 
+func checkUpdatesCmd() tea.Msg {
+	latest, url, available, err := version.CheckForUpdates()
+	return checkUpdateMsg{latest, url, available, err}
+}
+
 func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	switch msg := msg.(type) {
 	case tea.WindowSizeMsg:
@@ -304,6 +321,14 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		var cmd tea.Cmd
 		m.spinner, cmd = m.spinner.Update(msg)
 		return m, cmd
+
+	case checkUpdateMsg:
+		if msg.err == nil && msg.available {
+			m.latestVersion = msg.latest
+			m.updateUrl = msg.url
+			m.updateAvailable = true
+		}
+		return m, nil
 	}
 
 	// State-specific handling
@@ -511,7 +536,13 @@ func (m Model) View() string {
 	var s strings.Builder
 
 	// Header with branding
-	header := headerStyle.Render(" " + iconConvert + " Golter - File Converter ")
+	versionInfo := fmt.Sprintf(" v%s", version.Current)
+	if m.updateAvailable {
+		linkText := fmt.Sprintf("(Update available: v%s)", m.latestVersion)
+		link := fmt.Sprintf("\x1b]8;;%s\x1b\\%s\x1b]8;;\x1b\\", m.updateUrl, linkText)
+		versionInfo += " " + link
+	}
+	header := headerStyle.Render(" " + iconConvert + " Golter - File Converter" + versionInfo + " ")
 	s.WriteString("\n" + header + "\n\n")
 
 	switch m.state {

internal/version/version.go

@@ -0,0 +1,87 @@
+package version
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Current represents the current version of the application
+const (
+	Current = "0.1.1"
+	Repo    = "sametcn99/golter"
+)
+
+type Release struct {
+	TagName string `json:"tag_name"`
+	HTMLURL string `json:"html_url"`
+}
+
+// CheckForUpdates checks GitHub for the latest release
+// Returns latest version string, release URL, true if update available, and error if any
+func CheckForUpdates() (string, string, bool, error) {
+	url := fmt.Sprintf("https://api.github.com/repos/%s/releases/latest", Repo)
+	client := http.Client{
+		Timeout: 2 * time.Second,
+	}
+
+	resp, err := client.Get(url)
+	if err != nil {
+		return "", "", false, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", "", false, fmt.Errorf("API responded with status %d", resp.StatusCode)
+	}
+
+	var release Release
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return "", "", false, err
+	}
+
+	latest := strings.TrimPrefix(release.TagName, "v")
+	current := strings.TrimPrefix(Current, "v")
+
+	if isNewer(current, latest) {
+		return latest, release.HTMLURL, true, nil
+	}
+
+	return latest, "", false, nil
+}
+
+// isNewer returns true if v2 is newer than v1
+// Assumes semantic versioning (x.y.z)
+func isNewer(v1, v2 string) bool {
+	p1 := strings.Split(v1, ".")
+	p2 := strings.Split(v2, ".")
+
+	len1 := len(p1)
+	len2 := len(p2)
+	maxLen := len1
+	if len2 > maxLen {
+		maxLen = len2
+	}
+
+	for i := 0; i < maxLen; i++ {
+		var n1, n2 int
+		if i < len1 {
+			n1, _ = strconv.Atoi(p1[i])
+		}
+		if i < len2 {
+			n2, _ = strconv.Atoi(p2[i])
+		}
+
+		if n2 > n1 {
+			return true
+		}
+		if n1 > n2 {
+			return false
+		}
+	}
+
+	return false
+}

main.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 
-	"golter/internal/tui"
+	"github.com/sametcn99/golter/internal/tui"
 
 	tea "github.com/charmbracelet/bubbletea"
 )