make updater abstract

app/src/main/java/com/geode/launcher/AltMainActivity.kt

@@ -185,16 +185,18 @@ fun mapLaunchStatusToInfo(state: LaunchViewModel.LaunchUIState, inSafeMode: Bool
             }
 
             val outOf = remember(state.outOf) {
-                Formatter.formatShortFileSize(context, state.outOf)
+                state.outOf?.apply {
+                    Formatter.formatShortFileSize(context, this)
+                }
             }
 
             LaunchStatusInfo(
                 title = stringResource(R.string.launcher_downloading_update),
-                details = stringResource(R.string.launcher_downloading_update_details, downloaded, outOf),
+                details = stringResource(R.string.launcher_downloading_update_details, downloaded, outOf ?: "…"),
                 progress = {
-                    val progress = state.downloaded / state.outOf.toDouble()
+                    val progress = state.downloaded / state.outOf!!.toDouble()
                     progress.toFloat()
-                }
+                }.takeIf { state.outOf != null }
             )
         }
         is LaunchViewModel.LaunchUIState.Cancelled -> {

app/src/main/java/com/geode/launcher/main/LaunchViewModel.kt

@@ -70,7 +70,7 @@ class LaunchViewModel(private val application: Application): ViewModel() {
     sealed class LaunchUIState {
         data object Initial : LaunchUIState()
         data object UpdateCheck : LaunchUIState()
-        data class Updating(val downloaded: Long, val outOf: Long) : LaunchUIState()
+        data class Updating(val downloaded: Long, val outOf: Long?) : LaunchUIState()
         data class Cancelled(val reason: LaunchCancelReason, val inProgress: Boolean = false) : LaunchUIState()
         data object Working : LaunchUIState()
         data object Ready : LaunchUIState()

app/src/main/java/com/geode/launcher/main/UpdateComponents.kt

@@ -73,10 +73,10 @@ fun generateInstallIntent(uri: Uri): Intent {
 
 fun installLauncherUpdate(context: Context) {
     val nextUpdate = ReleaseManager.get(context).availableLauncherUpdate.value
-    val launcherDownload = nextUpdate?.getLauncherDownload()
+    val launcherDownload = nextUpdate?.getDownload()
 
     if (launcherDownload != null) {
-        val outputFile = launcherDownload.name
+        val outputFile = launcherDownload.filename
         val baseDirectory = LaunchUtils.getBaseDirectory(context)
 
         val outputPathFile = File(baseDirectory, outputFile)
@@ -237,21 +237,23 @@ fun UpdateCard(releaseViewModel: ReleaseViewModel, modifier: Modifier = Modifier
             }
 
             val outOf = remember(state.outOf) {
-                Formatter.formatShortFileSize(context, state.outOf)
+                state.outOf?.run {
+                    Formatter.formatShortFileSize(context, this)
+                }
             }
 
             UpdateProgressIndicator(
                 stringResource(
                     R.string.release_fetch_downloading,
                     downloaded,
-                    outOf
+                    outOf ?: "…"
                 ),
                 modifier = modifier,
                 releaseViewModel = releaseViewModel,
                 progress = {
-                    val progress = state.downloaded / state.outOf.toDouble()
+                    val progress = state.downloaded / state.outOf!!.toDouble()
                     progress.toFloat()
-                }
+                }.takeIf { state.outOf != null }
             )
         }
         is ReleaseViewModel.ReleaseUIState.InUpdateCheck -> {

app/src/main/java/com/geode/launcher/preferences/SettingsActivity.kt

@@ -151,11 +151,16 @@ fun UpdateIndicator(
         is ReleaseViewModel.ReleaseUIState.InDownload -> {
             // is this the ideal design? idk
             enablePopup = true
-            val progress = updateStatus.downloaded / updateStatus.outOf.toDouble()
-
-            CircularProgressIndicator(
-                progress = { progress.toFloat() },
-            )
+            if (updateStatus.outOf != null) {
+                CircularProgressIndicator(
+                    progress = {
+                        val progress = updateStatus.downloaded / updateStatus.outOf.toDouble()
+                        progress.toFloat()
+                    },
+                )
+            } else {
+                CircularProgressIndicator()
+            }
         }
         else -> {}
     }

app/src/main/java/com/geode/launcher/updater/Release.kt

@@ -16,7 +16,7 @@ data class Asset(
 )
 
 @Serializable
-class Release(
+data class Release(
     val url: String,
     val id: Int,
     val targetCommitish: String,
@@ -25,39 +25,83 @@ class Release(
     val publishedAt: Instant,
     val assets: List<Asset>,
     val htmlUrl: String
-) {
-    fun getDescription(): String {
-        if (tagName == "nightly") {
+)
+
+@Serializable
+data class LoaderVersion(
+    val tag: String,
+    val version: String,
+    val createdAt: Instant,
+    val commitHash: String,
+    val prerelease: Boolean
+)
+
+@Serializable
+data class LoaderPayload<T>(
+    val payload: T?,
+    val error: String
+)
+
+data class DownloadableAsset(val url: String, val filename: String, val size: Long? = null)
+
+abstract class Downloadable {
+    abstract fun getDescription(): String
+    abstract fun getDescriptor(): Long
+    abstract fun getDownload(): DownloadableAsset?
+}
+
+class DownloadableGitHubLoaderRelease(private val release: Release) : Downloadable() {
+    override fun getDescription(): String {
+        if (release.tagName == "nightly") {
             // get the commit from the assets
             // otherwise, a separate request is needed to get the hash (ew)
-            val asset = assets.first()
+            val asset = release.assets.first()
             val commit = asset.name.substring(6..12)
 
             return "nightly-$commit"
         }
 
-        return tagName
+        return release.tagName
     }
 
-    fun getDescriptor(): Long {
-        return createdAt.epochSeconds
+    override fun getDescriptor(): Long {
+        return release.createdAt.epochSeconds
     }
 
-    fun getGeodeDownload(): Asset? {
+    private fun getGitHubDownload(): Asset? {
         // try to find an asset that matches the architecture first
         val platform = LaunchUtils.platformName
 
         val releaseSuffix = "$platform.zip"
-        return assets.find {
+        return release.assets.find {
             it.name.endsWith(releaseSuffix)
         }
     }
 
-    fun getLauncherDownload(): Asset? {
+    override fun getDownload(): DownloadableAsset? {
+        val download = getGitHubDownload() ?: return null
+        return DownloadableAsset(
+            url = download.browserDownloadUrl,
+            filename = download.name,
+            size = download.size.toLong()
+        )
+    }
+}
+
+class DownloadableLauncherRelease(val release: Release) : Downloadable() {
+    override fun getDescription(): String {
+        return release.tagName
+    }
+
+    override fun getDescriptor(): Long {
+        return release.createdAt.epochSeconds
+    }
+
+    private fun getGitHubDownload(): Asset? {
         val platform = LaunchUtils.platformName
         val use32BitPlatform = platform == "android32"
 
-        return assets.find { asset ->
+        return release.assets.find { asset ->
             /* you know it's good when you pull out the truth table
              * u32bp | contains | found
              * 1     | 1        | 1
@@ -70,4 +114,31 @@ class Release(
             (asset.name.contains("android32")) == use32BitPlatform
         }
     }
+
+    override fun getDownload(): DownloadableAsset? {
+        val download = getGitHubDownload() ?: return null
+        return DownloadableAsset(
+            url = download.browserDownloadUrl,
+            filename = download.name,
+            size = download.size.toLong()
+        )
+    }
+}
+
+class DownloadableLoaderRelease(private val version: LoaderVersion) : Downloadable() {
+    override fun getDescription(): String {
+        return version.tag
+    }
+
+    override fun getDescriptor(): Long {
+        return version.createdAt.epochSeconds
+    }
+
+    override fun getDownload(): DownloadableAsset? {
+        val filename = "geode-${version.tag}-${LaunchUtils.platformName}.zip"
+        return DownloadableAsset(
+            url = "https://github.com/geode-sdk/geode/releases/download/${version.tag}/$filename",
+            filename = filename
+        )
+    }
 }

app/src/main/java/com/geode/launcher/updater/ReleaseManager.kt

@@ -61,7 +61,7 @@ class ReleaseManager private constructor(
     sealed class ReleaseManagerState {
         data object InUpdateCheck : ReleaseManagerState()
         data class Failure(val exception: Exception) : ReleaseManagerState()
-        data class InDownload(val downloaded: Long, val outOf: Long) : ReleaseManagerState()
+        data class InDownload(val downloaded: Long, val outOf: Long?) : ReleaseManagerState()
         data class Finished(val hasUpdated: Boolean = false) : ReleaseManagerState()
     }
 
@@ -82,7 +82,7 @@ class ReleaseManager private constructor(
     val isInUpdate: Boolean
         get() = _uiState.value !is ReleaseManagerState.Failure && _uiState.value !is ReleaseManagerState.Finished
 
-    private val _availableLauncherUpdate = MutableStateFlow<Release?>(null)
+    private val _availableLauncherUpdate = MutableStateFlow<DownloadableLauncherRelease?>(null)
     val availableLauncherUpdate = _availableLauncherUpdate.asStateFlow()
 
     private fun sendError(e: Exception) {
@@ -106,24 +106,21 @@ class ReleaseManager private constructor(
         }
     }
 
-    private fun getBestReleaseForGameVersion(): String? {
+    private fun getBestReleaseForGameVersion(gameVersion: Long): String? = when {
+        gameVersion >= 40L -> mapSelectedReleaseToTag()
+        gameVersion == 39L -> "v3.9.2"
+        gameVersion == 38L -> "v2.0.0-beta.27"
+        gameVersion == 37L -> "v2.0.0-beta.4"
+        else -> null
+    }
+
+    private suspend fun getLatestRelease(): Downloadable? {
         if (!GamePackageUtils.isGameInstalled(applicationContext.packageManager)) {
             return null
         }
 
         val gameVersion = GamePackageUtils.getGameVersionCode(applicationContext.packageManager)
-
-        return when {
-            gameVersion >= 40L -> mapSelectedReleaseToTag()
-            gameVersion == 39L -> "v3.9.2"
-            gameVersion == 38L -> "v2.0.0-beta.27"
-            gameVersion == 37L -> "v2.0.0-beta.4"
-            else -> null
-        }
-    }
-
-    private suspend fun getLatestRelease(): Release? {
-        val targetTag = getBestReleaseForGameVersion() ?: return null
+        val targetTag = getBestReleaseForGameVersion(gameVersion) ?: return null
 
         return when (targetTag) {
             TAG_LATEST -> releaseRepository.getLatestGeodeRelease()
@@ -132,23 +129,23 @@ class ReleaseManager private constructor(
         }
     }
 
-    private suspend fun downloadLauncherUpdate(release: Release) {
-        val download = release.getLauncherDownload() ?: return
+    private suspend fun downloadLauncherUpdate(release: Downloadable) {
+        val download = release.getDownload() ?: return
 
         val outputDirectory = LaunchUtils.getBaseDirectory(applicationContext)
-        val outputFile = File(outputDirectory, download.name)
+        val outputFile = File(outputDirectory, download.filename)
 
         if (outputFile.exists()) {
             // only download the apk once
             return
         }
 
-        _uiState.value = ReleaseManagerState.InDownload(0, download.size.toLong())
+        _uiState.value = ReleaseManagerState.InDownload(0, download.size)
 
         try {
             val fileStream = DownloadUtils.downloadStream(
                 httpClient,
-                download.browserDownloadUrl
+                download.url
             ) { progress, outOf ->
                 _uiState.value = ReleaseManagerState.InDownload(progress, outOf)
             }
@@ -160,8 +157,8 @@ class ReleaseManager private constructor(
         }
     }
 
-    private suspend fun performUpdate(release: Release) {
-        val releaseAsset = release.getGeodeDownload()
+    private suspend fun performUpdate(release: Downloadable) {
+        val releaseAsset = release.getDownload()
         if (releaseAsset == null) {
             val noAssetException = Exception("missing Android download")
             _uiState.value = ReleaseManagerState.Failure(noAssetException)
@@ -170,12 +167,12 @@ class ReleaseManager private constructor(
         }
 
         // set an initial download size
-        _uiState.value = ReleaseManagerState.InDownload(0, releaseAsset.size.toLong())
+        _uiState.value = ReleaseManagerState.InDownload(0, releaseAsset.size)
 
         try {
             val fileStream = DownloadUtils.downloadStream(
                 httpClient,
-                releaseAsset.browserDownloadUrl
+                releaseAsset.url
             ) { progress, outOf ->
                 _uiState.value = ReleaseManagerState.InDownload(progress, outOf)
             }
@@ -223,8 +220,8 @@ class ReleaseManager private constructor(
         return originalFileHash != currentFileHash
     }
 
-    private fun checkLauncherUpdate(launcherUpdate: Release) {
-        if (launcherUpdate.tagName != BuildConfig.VERSION_NAME) {
+    private fun checkLauncherUpdate(launcherUpdate: DownloadableLauncherRelease) {
+        if (launcherUpdate.release.tagName != BuildConfig.VERSION_NAME) {
             _availableLauncherUpdate.value = launcherUpdate
         }
     }
@@ -286,7 +283,7 @@ class ReleaseManager private constructor(
         performUpdate(release)
     }
 
-    private fun updatePreferences(release: Release) {
+    private fun updatePreferences(release: Downloadable) {
         val sharedPreferences = PreferenceUtils.get(applicationContext)
 
         sharedPreferences.setString(