feat: name change + bugfixes

internal/routes/releases.go

@@ -3,11 +3,12 @@ package routes
 import (
 	"crypto/sha256"
 	"encoding/hex"
+	"fmt"
 	"io"
-	"kooltab-updateserver/internal/apk_util"
-	"kooltab-updateserver/internal/auth"
-	"kooltab-updateserver/internal/db"
-	"kooltab-updateserver/internal/models"
+	"kooltap-updateserver/internal/apk_util"
+	"kooltap-updateserver/internal/auth"
+	"kooltap-updateserver/internal/db"
+	"kooltap-updateserver/internal/models"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -24,6 +25,8 @@ func Register(r *gin.Engine) {
 		api.GET("/releases", ListReleases)
 	}
 
+	r.GET("/download/latest", DownloadLatest)
+
 	admin := r.Group("/admin")
 	admin.Use(auth.AdminAuth())
 	{
@@ -38,9 +41,8 @@ func CheckUpdate(c *gin.Context) {
 
 	var latest models.Release
 
-	if err := db.DB.
-		Order("created_at desc").
-		First(&latest).Error; err != nil {
+	// The highest Android version code is the latest build, regardless of upload order
+	if err := latestRelease(&latest); err != nil {
 
 		c.JSON(http.StatusOK, gin.H{
 			"update": false,
@@ -79,6 +81,27 @@ func CheckUpdate(c *gin.Context) {
 	})
 }
 
+// DownloadLatest redirects to the newest APK, for installing on a new tablet from a browser
+func DownloadLatest(c *gin.Context) {
+
+	var latest models.Release
+
+	if err := latestRelease(&latest); err != nil {
+		c.JSON(http.StatusNotFound, gin.H{
+			"error": "No releases yet",
+		})
+		return
+	}
+
+	c.Redirect(http.StatusFound, "/downloads/"+latest.APKFile)
+}
+
+func latestRelease(release *models.Release) error {
+	return db.DB.
+		Order("version_code desc").
+		First(release).Error
+}
+
 func ListReleases(c *gin.Context) {
 
 	var releases []models.Release
@@ -124,6 +147,16 @@ func UploadRelease(c *gin.Context) {
 		return
 	}
 
+	// Tablets only see the release with the highest version code, so an older or equal one would never be offered
+	var latest models.Release
+	if err := latestRelease(&latest); err == nil && int64(info.VersionCode) <= latest.VersionCode {
+		c.JSON(http.StatusConflict, gin.H{
+			"error": fmt.Sprintf("version code %d must be higher than the latest release (%s, code %d)",
+				info.VersionCode, latest.Version, latest.VersionCode),
+		})
+		return
+	}
+
 	filename := "app-" + info.Version + ".apk"
 	path := filepath.Join("uploads", filename)