Add an in-app updater

app/build.gradle

@@ -18,6 +18,7 @@ android {
     compileSdk 33
 
     var isBuildSigned = (System.getenv("CI") == "true") && (System.getenv("IS_SKYLINE_SIGNED") == "true")
+    var gitCommitHash = 'git rev-parse --verify HEAD'.execute().text.trim()
 
     defaultConfig {
         applicationId "skyline.emu"
@@ -28,6 +29,8 @@ android {
         versionCode 3
         versionName "0.0.3"
 
+        buildConfigField("String", "GIT_HASH", "\"${gitCommitHash}\"")
+
         ndk {
             //noinspection ChromeOsAbiSupport
             abiFilters "arm64-v8a"

app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <uses-feature
         android:name="android.hardware.vulkan.version"

app/src/main/java/emu/skyline/AppUpdater.kt

@@ -0,0 +1,123 @@
+/*
+ * SPDX-License-Identifier: MPL-2.0
+ * Copyright © 2023 Skyline Team and Contributors (https://github.com/skyline-emu/)
+ */
+
+package emu.skyline
+
+import android.app.DownloadManager
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.net.Uri
+import android.os.Handler
+import android.os.Looper
+import android.text.Html
+import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.ContextCompat.startActivity
+import org.json.JSONArray
+import org.json.JSONTokener
+import java.io.File
+import java.io.IOException
+import java.net.URL
+import java.util.concurrent.Executors
+
+class AppUpdater : BroadcastReceiver() {
+    private var downloadID = 0L
+
+    override fun onReceive(context : Context, intent : Intent) {
+        //Fetching the download id received with the broadcast
+        val id = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1)
+        //Checking if the received broadcast is for our enqueued download by matching download id
+        if (downloadID == id) {
+            Toast.makeText(context, "Download Completed", Toast.LENGTH_SHORT).show()
+
+            val intentInstall = Intent(Intent.ACTION_INSTALL_PACKAGE)
+            intentInstall.data = (context.getSystemService(AppCompatActivity.DOWNLOAD_SERVICE) as DownloadManager).getUriForDownloadedFile(downloadID)
+            intentInstall.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
+            startActivity(context, intentInstall, null)
+            context.unregisterReceiver(this)
+        }
+    }
+
+    fun downloadApk(applicationContext : Context, uri : Uri){
+        val downloadPath = applicationContext.getPublicFilesDir().canonicalPath
+        val file = File(downloadPath, "skyline.apk")
+
+        if (File(file.path).exists()) {
+            File(file.path).delete()
+        }
+
+        val request = DownloadManager.Request(uri).setTitle("skyline")
+            .setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)
+            .setDestinationUri(Uri.fromFile(file))
+
+        val downloadManager = applicationContext.getSystemService(AppCompatActivity.DOWNLOAD_SERVICE) as DownloadManager
+        downloadID = downloadManager.enqueue(request)
+    }
+
+    init {
+        if (File(SkylineApplication.instance.getPublicFilesDir().canonicalPath+"/skyline.apk").exists()) {
+            File(SkylineApplication.instance.getPublicFilesDir().canonicalPath+"/skyline.apk").delete()
+        }
+    }
+
+    companion object {
+        private const val baseUrl = "https://skyline-builds.alula.gay"
+        private const val branch = "ftx1"
+        @JvmStatic
+        fun checkForUpdates(applicationContext : Context) {
+            val myExecutor = Executors.newSingleThreadExecutor()
+            val myHandler = Handler(Looper.getMainLooper())
+            val builder = AlertDialog.Builder(applicationContext)
+
+            val url = URL("$baseUrl/builds")
+            myExecutor.execute {
+                try {
+                    val response = url.readText()
+                    val jsonBuilds = JSONTokener(response).nextValue() as JSONArray
+
+                    var ftx1Index = 0
+                    while(ftx1Index < jsonBuilds.length() && !jsonBuilds.getJSONObject(ftx1Index).get("branch").equals(branch)){
+                        ftx1Index++
+                    }
+                    if(ftx1Index >= jsonBuilds.length())
+                        ftx1Index = 0
+
+                    val remoteBuildGitHash = jsonBuilds.getJSONObject(ftx1Index).getJSONObject("commit").getString("id")
+                    if (!BuildConfig.GIT_HASH.equals(remoteBuildGitHash)) {
+                        val id = jsonBuilds.getJSONObject(ftx1Index).get("id")
+                        val apkName = jsonBuilds.getJSONObject(ftx1Index).get("apkName")
+                        val uri = Uri.parse("$baseUrl/cache/${id}/${apkName}")
+
+                        myHandler.post {
+                            builder.setTitle("New version ${jsonBuilds.getJSONObject(ftx1Index).get("runNumber")}")
+                                .setMessage(Html.fromHtml("<b>Changelog</b><p>${jsonBuilds.getJSONObject(ftx1Index).getJSONObject("commit").getString("message")}</p>", 0))
+                                .setCancelable(true)
+                                .setPositiveButton("Update") { dialogInterface, it ->
+                                    val receiver = AppUpdater()
+                                    applicationContext.registerReceiver(receiver, IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE))
+                                    receiver.downloadApk(applicationContext, uri)
+                                    dialogInterface.dismiss()
+                                }.show()
+                        }
+                    } else {
+                        myHandler.post {
+                            builder.setTitle("No updates available")
+                                .setMessage(Html.fromHtml("<b>Changelog</b><p>${jsonBuilds.getJSONObject(ftx1Index).getJSONObject("commit").getString("message")}</p>", 0))
+                                .setCancelable(true)
+                                .setPositiveButton("Close") { dialogInterface, it ->
+                                    dialogInterface.dismiss()
+                                }.show()
+                        }
+                    }
+                } catch (e : IOException) {
+                    e.printStackTrace()
+                }
+            }
+        }
+    }
+}

app/src/main/java/emu/skyline/MainActivity.kt

@@ -151,6 +151,9 @@ class MainActivity : AppCompatActivity() {
                     Snackbar.make(this@MainActivity.findViewById(android.R.id.content), getString(R.string.logs_not_found), Snackbar.LENGTH_SHORT).show()
                 }
             }
+            binding.checkUpdatesIcon.setOnClickListener {
+                AppUpdater.checkForUpdates(context)
+            }
             binding.settingsIcon.setOnClickListener { settingsCallback.launch(Intent(context, SettingsActivity::class.java)) }
             binding.refreshIcon.setOnClickListener { loadRoms(false) }
             addTextChangedListener(afterTextChanged = { editable ->

app/src/main/res/drawable/ic_check_updates.xml

@@ -0,0 +1,8 @@
+<!-- drawable/download.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#000" android:pathData="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z" />
+</vector>

app/src/main/res/layout/main_activity.xml

@@ -40,12 +40,28 @@
                     android:padding="5dp"
                     android:visibility="invisible"
                     app:layout_constraintBottom_toBottomOf="@id/sub_text"
-                    app:layout_constraintEnd_toStartOf="@id/log_icon"
+                    app:layout_constraintEnd_toStartOf="@id/check_updates_icon"
                     app:layout_constraintTop_toTopOf="@id/title_text"
                     app:srcCompat="@drawable/ic_refresh"
                     app:tint="?android:attr/textColorSecondary"
                     tools:visibility="visible" />
 
+                <ImageView
+                    android:id="@+id/check_updates_icon"
+                    android:layout_width="30dp"
+                    android:layout_height="30dp"
+                    android:layout_gravity="center_vertical"
+                    android:layout_marginEnd="4dp"
+                    android:background="?attr/selectableItemBackgroundBorderless"
+                    android:contentDescription="@string/check_updates"
+                    android:padding="5dp"
+                    app:layout_constraintBottom_toBottomOf="@id/sub_text"
+                    app:layout_constraintEnd_toStartOf="@id/log_icon"
+                    app:layout_constraintTop_toTopOf="@id/title_text"
+                    app:srcCompat="@drawable/ic_check_updates"
+                    app:tint="?android:attr/textColorSecondary"
+                    tools:visibility="visible" />
+
                 <ImageView
                     android:id="@+id/log_icon"
                     android:layout_width="30dp"

app/src/main/res/values/strings.xml

@@ -8,6 +8,7 @@
     <string name="settings">Settings</string>
     <string name="share_logs">Share Logs</string>
     <string name="refresh">Refresh</string>
+    <string name="check_updates">Check for updates</string>
     <!-- Toolbar - Share Logs -->
     <string name="log_share_prompt">Share log file</string>
     <string name="logs_not_found">No logs were created during the last run</string>