Create UI side `VoucherRedeemer`

1 files changed, 43 insertions, 0 deletions

diff --git a/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/serviceconnection/VoucherRedeemer.kt b/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/serviceconnection/VoucherRedeemer.kt
new file mode 100644
index 0000000000..d2378100ea
--- /dev/null
+++ b/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/serviceconnection/VoucherRedeemer.kt
@@ -0,0 +1,43 @@
+package net.mullvad.mullvadvpn.ui.serviceconnection
+
+import android.os.Messenger
+import kotlinx.coroutines.CompletableDeferred
+import net.mullvad.mullvadvpn.ipc.Event
+import net.mullvad.mullvadvpn.ipc.MessageDispatcher
+import net.mullvad.mullvadvpn.ipc.Request
+import net.mullvad.mullvadvpn.model.VoucherSubmissionResult
+
+class VoucherRedeemer(val connection: Messenger, eventDispatcher: MessageDispatcher<Event>) {
+    private val activeSubmissions =
+        mutableMapOf<String, CompletableDeferred<VoucherSubmissionResult>>()
+
+    init {
+        eventDispatcher.registerHandler(Event.VoucherSubmissionResult::class) { event ->
+            synchronized(this@VoucherRedeemer) {
+                activeSubmissions.remove(event.voucher)?.complete(event.result)
+            }
+        }
+    }
+
+    suspend fun submit(voucher: String): VoucherSubmissionResult {
+        val result = CompletableDeferred<VoucherSubmissionResult>()
+
+        synchronized(this) {
+            activeSubmissions.put(voucher, result)
+        }
+
+        connection.send(Request.SubmitVoucher(voucher).message)
+
+        return result.await()
+    }
+
+    fun onDestroy() {
+        synchronized(this) {
+            for ((_, submission) in activeSubmissions) {
+                submission.cancel()
+            }
+
+            activeSubmissions.clear()
+        }
+    }
+}