add update file

apps/vbox/backend/src/main/kotlin/ru/shadowsparky/vbox/backend/data/BackendUpdateFetcher.kt

@@ -9,13 +9,14 @@ import ru.shadowsparky.updater.domain.UpdateFetcher
 import ru.shadowsparky.updater.domain.UpdateInfo
 import java.io.File
 
-@Factory
+@Factory(binds = [BackendUpdateFetcher::class])
 class BackendUpdateFetcher(
     private val envFetcher: EnvFetcher,
     private val json: Json,
     private val dispatcherProvider: DispatcherProvider
 ) : UpdateFetcher {
     private var config: UpdateInfo? = null
+    private var updateFile: File? = null
 
     override suspend fun fetch(versionCode: Long): UpdateInfo = withContext(dispatcherProvider.io) {
         config?.let { return@withContext it }
@@ -28,4 +29,13 @@ class BackendUpdateFetcher(
             }
         }
     }
+
+    suspend fun updateFile(): File = withContext(dispatcherProvider.io) {
+        val updateFilePath = envFetcher.get("UPDATE_FILE")
+        if (updateFilePath.isBlank()) error("Update not found")
+        val file = File(updateFilePath)
+        if (!file.exists()) error("File not exists")
+        updateFile = file
+        file
+    }
 }

apps/vbox/backend/src/main/kotlin/ru/shadowsparky/vbox/backend/di/EntryPoint.kt

@@ -25,7 +25,7 @@ class RoutingEntryPoint(
     val savedMovieFactory: SavedMovieRepositoryFactory,
     val movieTagFactory: MovieTagRepositoryFactory,
     val userTagFactory: UserTagRepositoryFactory,
-    val updateFetcher: UpdateFetcher
+    val updateFetcher: BackendUpdateFetcher
 )
 
 @Single

apps/vbox/backend/src/main/kotlin/ru/shadowsparky/vbox/backend/presentation/routing/UpdateRouting.kt

@@ -1,15 +1,20 @@
 package ru.shadowsparky.vbox.backend.presentation.routing
 
 import io.ktor.server.response.respond
+import io.ktor.server.response.respondFile
 import io.ktor.server.routing.Route
 import io.ktor.server.routing.get
 import io.ktor.server.util.getOrFail
 import ru.shadowsparky.updater.domain.UpdateFetcher
+import ru.shadowsparky.vbox.backend.data.BackendUpdateFetcher
 import ru.shadowsparky.vbox.shared.domain.DYNAMIC_PREFIX
 
-fun Route.setupUpdates(updateFetcher: UpdateFetcher) {
+fun Route.setupUpdates(updateFetcher: BackendUpdateFetcher) {
     get("$DYNAMIC_PREFIX/checkUpdates") {
         val versionCode = call.parameters.getOrFail(UpdateFetcher.ARG_VERSION_CODE).toLong()
         call.respond(updateFetcher.fetch(versionCode))
     }
+    get("$DYNAMIC_PREFIX/getApk") {
+        call.respondFile(updateFetcher.updateFile())
+    }
 }