add ddnupdater new version notification

internal/models/html.go

@@ -3,8 +3,10 @@ package models
 // HTMLData is a list of HTML fields to be rendered.
 // It is exported so that the HTML template engine can render it.
 type HTMLData struct {
-	Rows []HTMLRow
-	Version string
+	Rows            []HTMLRow
+	Version         string
+	UpdateAvailable bool
+	LatestVersion   string
 }
 
 // HTMLRow contains HTML fields to be rendered
@@ -17,4 +19,4 @@ type HTMLRow struct {
 	Status      string
 	CurrentIP   string
 	PreviousIPs string
-}
+}

internal/server/index.go

@@ -12,7 +12,20 @@ func (h *handlers) index(w http.ResponseWriter, _ *http.Request) {
 		row := record.HTML(h.timeNow())
 		htmlData.Rows = append(htmlData.Rows, row)
 	}
-	err := h.indexTemplate.ExecuteTemplate(w, "index.html", htmlData)
+
+	currentVersion := getCurrentVersion()
+	latestVersion, err := getLatestRelease()
+	if err != nil {
+		httpError(w, http.StatusInternalServerError, "failed getting latest release: "+err.Error())
+		return
+	}
+	htmlData.Version = currentVersion
+	if currentVersion != latestVersion {
+		htmlData.UpdateAvailable = true
+		htmlData.LatestVersion = latestVersion
+	}
+
+	err = h.indexTemplate.ExecuteTemplate(w, "index.html", htmlData)
 	if err != nil {
 		httpError(w, http.StatusInternalServerError, "failed generating webpage: "+err.Error())
 	}

internal/server/ui/index.html

@@ -46,9 +46,9 @@
             d="M8 0c4.42 0 8 3.58 8 8a8.013 8.013 0 0 1-5.45 7.59c-.4.08-.55-.17-.55-.38 0-.27.01-1.13.01-2.2 0-.75-.25-1.23-.54-1.48 1.78-.2 3.65-.88 3.65-3.95 0-.88-.31-1.59-.82-2.15.08-.2.36-1.02-.08-2.12 0 0-.67-.22-2.2.82-.64-.18-1.32-.27-2-.27-.68 0-1.36.09-2 .27-1.53-1.03-2.2-.82-2.2-.82-.44 1.1-.16 1.92-.08 2.12-.51.56-.82 1.28-.82 2.15 0 3.06 1.86 3.75 3.64 3.95-.23.2-.44.55-.51 1.07-.46.21-1.61.55-2.33-.66-.15-.24-.6-.83-1.23-.82-.67.01-.27.38.01.53.34.19.73.9.82 1.13.16.45.68 1.31 2.69.94 0 .67.01 1.3.01 1.49 0 .21-.15.45-.55.38A7.995 7.995 0 0 1 0 8c0-4.42 3.58-8 8-8Z">
           </path>
         </svg>
-        <p>Version: {{.Version}}</p>
       </a>
     </div>
+    <div>Current Version: {{.Version}} {{if .UpdateAvailable}} Update Available: {{.LatestVersion}}{{end}}</div>
     <div>by <a href="https://github.com/qdm12">Quentin McGaw</a> / UI reworked by <a
         href="https://github.com/fuse314">Gottfried Mayer</a></div>
   </footer>

internal/server/version.go

@@ -1,25 +1,31 @@
 package server
 
 import (
-    "encoding/json"
-    "net/http"
+	"encoding/json"
+	"net/http"
 )
 
 type GitHubRelease struct {
-    TagName string `json:"tag_name"`
+	TagName string `json:"tag_name"`
 }
 
 func getLatestRelease() (string, error) {
-    resp, err := http.Get("https://api.github.com/repos/qdm12/ddns-updater/releases/latest")
-    if err != nil {
-        return "", err
-    }
-    defer resp.Body.Close()
+	resp, err := http.Get("https://api.github.com/repos/qdm12/ddns-updater/releases/latest")
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
 
-    var release GitHubRelease
-    if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
-        return "", err
-    }
+	var release GitHubRelease
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return "", err
+	}
 
-    return release.TagName, nil
-}
+	return release.TagName, nil
+}
+
+// Add a function to get the current version
+func getCurrentVersion() string {
+	// Replace with actual logic to get the current version
+	return "v1.0.0"
+}