From 4c78c29776fdd482e13fc445b68ad7fe091b4def Mon Sep 17 00:00:00 2001
From: Iván Ávalos <avalos@disroot.org>
Date: Wed, 27 Mar 2024 12:08:29 -0600
Subject: [wallet] WIP: observability events

bug 0008509
---
 .../java/net/taler/wallet/backend/ApiResponse.kt   |  2 +
 .../java/net/taler/wallet/backend/InitResponse.kt  | 43 ++++++++++++++++++++++
 .../net/taler/wallet/backend/WalletBackendApi.kt   |  8 ++++
 3 files changed, 53 insertions(+)

(limited to 'wallet/src/main/java/net/taler/wallet/backend')

diff --git a/wallet/src/main/java/net/taler/wallet/backend/ApiResponse.kt b/wallet/src/main/java/net/taler/wallet/backend/ApiResponse.kt
index 46eb2f0..def4668 100644
--- a/wallet/src/main/java/net/taler/wallet/backend/ApiResponse.kt
+++ b/wallet/src/main/java/net/taler/wallet/backend/ApiResponse.kt
@@ -19,6 +19,7 @@ package net.taler.wallet.backend
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.JsonObject
+import net.taler.wallet.events.ObservabilityEvent
 
 @Serializable
 sealed class ApiMessage {
@@ -35,6 +36,7 @@ sealed class ApiMessage {
 data class NotificationPayload(
     val type: String,
     val id: String? = null,
+    val event: ObservabilityEvent? = null,
 )
 
 @Serializable
diff --git a/wallet/src/main/java/net/taler/wallet/backend/InitResponse.kt b/wallet/src/main/java/net/taler/wallet/backend/InitResponse.kt
index e9f7fcd..7fe1a6b 100644
--- a/wallet/src/main/java/net/taler/wallet/backend/InitResponse.kt
+++ b/wallet/src/main/java/net/taler/wallet/backend/InitResponse.kt
@@ -17,12 +17,55 @@
 package net.taler.wallet.backend
 
 import kotlinx.serialization.Serializable
+import net.taler.wallet.exchanges.BuiltinExchange
 
 @Serializable
 data class InitResponse(
     val versionInfo: WalletCoreVersion,
 )
 
+@Serializable
+data class WalletRunConfig(
+    val builtin: Builtin? = Builtin(),
+    val testing: Testing? = Testing(),
+    val features: Features? = Features(),
+) {
+    /**
+     * Initialization values useful for a complete startup.
+     *
+     * These are values may be overridden by different wallets
+     */
+    @Serializable
+    data class Builtin(
+        val exchanges: List<BuiltinExchange> = emptyList(),
+    )
+
+    /**
+     * Unsafe options which it should only be used to create
+     * testing environment.
+     */
+    @Serializable
+    data class Testing(
+        /**
+         * Allow withdrawal of denominations even though they are about to expire.
+         */
+        val denomselAllowLate: Boolean = false,
+        val devModeActive: Boolean = false,
+        val insecureTrustExchange: Boolean = false,
+        val preventThrottling: Boolean = false,
+        val skipDefaults: Boolean = false,
+        val emitObservabilityEvents: Boolean? = false,
+    )
+
+    /**
+     * Configurations values that may be safe to show to the user
+     */
+    @Serializable
+    data class Features(
+        val allowHttp: Boolean = false,
+    )
+}
+
 fun interface VersionReceiver {
     fun onVersionReceived(versionInfo: WalletCoreVersion)
 }
diff --git a/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt
index 4e179bb..0619a4e 100644
--- a/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt
+++ b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt
@@ -23,11 +23,13 @@ import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.KSerializer
+import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.decodeFromJsonElement
 import net.taler.wallet.backend.TalerErrorCode.NONE
 import org.json.JSONObject
 import java.io.File
+import net.taler.wallet.backend.WalletRunConfig.*
 
 private const val WALLET_DB = "talerwalletdb.sqlite3"
 
@@ -54,9 +56,15 @@ class WalletBackendApi(
         } else {
             "${app.filesDir}/${WALLET_DB}"
         }
+
+        val config = WalletRunConfig(testing = Testing(
+            emitObservabilityEvents = true,
+        ))
+
         request("init", InitResponse.serializer()) {
             put("persistentStoragePath", db)
             put("logLevel", "INFO")
+            put("config", JSONObject(BackendManager.json.encodeToString(config)))
         }.onSuccess { response ->
             versionReceiver.onVersionReceived(response.versionInfo)
         }.onError { error ->
-- 
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