Implemented version update info

superhighway84.go

@@ -3,6 +3,8 @@ package main
 import (
 	"context"
 	"embed"
+	"encoding/json"
+	"net/http"
 	"net/url"
 	"os"
 	"runtime"
@@ -63,7 +65,7 @@ func main() {
   var articlesRoots []*models.Article
 
   TUI := tui.Init(&EMBEDFS, cfg, logger)
-  TUI.SetVersion(version)
+  TUI.SetVersion(version, getLatestVersion())
 
   TUI.ArticlesDatasource = &articles
   TUI.ArticlesRoots = &articlesRoots
@@ -114,3 +116,22 @@ func main() {
   TUI.Launch()
 }
 
+
+func getLatestVersion() (string) {
+  var client = &http.Client{Timeout: 10 * time.Second}
+  r, err := client.Get(
+    "https://api.github.com/repos/mrusme/superhighway84/releases/latest",
+  )
+  if err != nil {
+      return version
+  }
+  defer r.Body.Close()
+  var result map[string]interface{}
+  json.NewDecoder(r.Body).Decode(&result)
+
+  if val, exist := result["tag_name"]; exist == true {
+    return val.(string)
+  }
+  return version
+}
+

tui/mainscreen.go

@@ -16,7 +16,7 @@ var HEADER_LOGO =
 [teal]   /  / / // [-][hotpink]/ __/_ _____  ___ ____/ /  (_)__ _/ / _    _____ ___ __( _ )/ / /[-]
 [teal]  _\ _\_\_\\_[-][fuchsia]\ \/ // / _ \/ -_) __/ _ \/ / _ \/ _ \ |/|/ / _ \/ // / _  /_  _/[-]
 [darkcyan] /  / / // [-][hotpink]/___/\_,_/ .__/\__/_/ /_//_/_/\_, /_//_/__,__/\_,_/\_, /\___/ /_/[-] [dimgray]%s[-]
-[hotpink]                   /_/                  /___/                /___/[-]
+[hotpink]                   /_/                  /___/                /___/[-]           [yellow]%s[-]
 `
 
 var STATS_TEMPLATE =
@@ -171,10 +171,22 @@ func (mainscreen *Mainscreen) SetInfo(info map[string]string) {
   )
 }
 
-func (mainscreen *Mainscreen) SetVersion(version string) {
+func (mainscreen *Mainscreen) SetVersion(version string, versionLatest string) {
+  v := version
+  if version == "v0.0.0" {
+    v = "DeLorean @ 1.21 Gigawatts"
+  }
+
+  l := ""
+  if versionLatest != version &&
+    version != "v0.0.0" {
+    l = fmt.Sprintf("%s update available!", versionLatest)
+  }
+
   mainscreen.Header.SetText(
     fmt.Sprintf(HEADER_LOGO,
-      version,
+      v,
+      l,
     ),
   )
 }

tui/tui.go

@@ -34,6 +34,7 @@ type TUI struct {
   Stats                      map[string]int64
 
   Version                    string
+  VersionLatest              string
 }
 
 type View interface {
@@ -239,8 +240,9 @@ func (t* TUI) SetStats(peers, rateIn, rateOut, totalIn, totalOut int64) () {
   t.App.Draw()
 }
 
-func (t* TUI) SetVersion(version string) {
+func (t* TUI) SetVersion(version string, versionLatest string) {
   t.Version = version
-  t.Views["mainscreen"].(*Mainscreen).SetVersion(t.Version)
+  t.VersionLatest = versionLatest
+  t.Views["mainscreen"].(*Mainscreen).SetVersion(t.Version, t.VersionLatest)
 }