1 files changed, 66 insertions, 0 deletions
diff --git a/wallet/src/main/java/net/taler/wallet/events/ObservabilityEvent.kt b/wallet/src/main/java/net/taler/wallet/events/ObservabilityEvent.kt
new file mode 100644
index 0000000..a50cde2
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/events/ObservabilityEvent.kt
@@ -0,0 +1,66 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2024 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.events
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import java.time.LocalDateTime
+
+
+@Serializable(with = ObservabilityEventSerializer::class)
+class ObservabilityEvent(
+    val body: JsonObject,
+    val timestamp: LocalDateTime,
+    val type: String,
+)
+
+class ObservabilityEventSerializer: KSerializer<ObservabilityEvent> {
+    private val jsonElementSerializer = JsonElement.serializer()
+
+    override val descriptor: SerialDescriptor
+        get() = jsonElementSerializer.descriptor
+
+    override fun deserialize(decoder: Decoder): ObservabilityEvent {
+        require(decoder is JsonDecoder)
+        val jsonObject = decoder
+            .decodeJsonElement()
+            .jsonObject
+
+        val type = jsonObject["type"]
+            ?.jsonPrimitive
+            ?.content
+            ?: "unknown"
+
+        return ObservabilityEvent(
+            body = jsonObject,
+            timestamp = LocalDateTime.now(),
+            type = type,
+        )
+    }
+
+    override fun serialize(encoder: Encoder, value: ObservabilityEvent) {
+        encoder.encodeSerializableValue(JsonObject.serializer(), value.body)
+    }
+}
+\ No newline at end of file