From b9d7d6edb7cc12e5238168c4446a28c0ae98c729 Mon Sep 17 00:00:00 2001
From: Torsten Grote <t@grobox.de>
Date: Wed, 22 Jul 2020 16:47:05 -0300
Subject: [common] also support multi-platform serialization/deserialization

---
 .../src/main/java/net/taler/common/Amount.kt       | 17 ++++++++++++++++
 .../main/java/net/taler/common/ContractTerms.kt    | 23 ++++++++++++++++------
 2 files changed, 34 insertions(+), 6 deletions(-)

(limited to 'taler-kotlin-common/src')

diff --git a/taler-kotlin-common/src/main/java/net/taler/common/Amount.kt b/taler-kotlin-common/src/main/java/net/taler/common/Amount.kt
index 76cd294..992f93b 100644
--- a/taler-kotlin-common/src/main/java/net/taler/common/Amount.kt
+++ b/taler-kotlin-common/src/main/java/net/taler/common/Amount.kt
@@ -26,6 +26,11 @@ import com.fasterxml.jackson.databind.annotation.JsonDeserialize
 import com.fasterxml.jackson.databind.annotation.JsonSerialize
 import com.fasterxml.jackson.databind.deser.std.StdDeserializer
 import com.fasterxml.jackson.databind.ser.std.StdSerializer
+import kotlinx.serialization.Decoder
+import kotlinx.serialization.Encoder
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Serializer
 import org.json.JSONObject
 import java.lang.Math.floorDiv
 import kotlin.math.pow
@@ -34,6 +39,7 @@ import kotlin.math.roundToInt
 class AmountParserException(msg: String? = null, cause: Throwable? = null) : Exception(msg, cause)
 class AmountOverflowException(msg: String? = null, cause: Throwable? = null) : Exception(msg, cause)
 
+@Serializable(with = KotlinXAmountSerializer::class)
 @JsonSerialize(using = AmountSerializer::class)
 @JsonDeserialize(using = AmountDeserializer::class)
 data class Amount(
@@ -211,6 +217,17 @@ data class Amount(
 
 }
 
+@Serializer(forClass = Amount::class)
+object KotlinXAmountSerializer: KSerializer<Amount> {
+    override fun serialize(encoder: Encoder, value: Amount) {
+        encoder.encodeString(value.toJSONString())
+    }
+
+    override fun deserialize(decoder: Decoder): Amount {
+        return Amount.fromJSONString(decoder.decodeString())
+    }
+}
+
 class AmountSerializer : StdSerializer<Amount>(Amount::class.java) {
     override fun serialize(value: Amount, gen: JsonGenerator, provider: SerializerProvider) {
         gen.writeString(value.toJSONString())
diff --git a/taler-kotlin-common/src/main/java/net/taler/common/ContractTerms.kt b/taler-kotlin-common/src/main/java/net/taler/common/ContractTerms.kt
index 8b8e02d..c07127a 100644
--- a/taler-kotlin-common/src/main/java/net/taler/common/ContractTerms.kt
+++ b/taler-kotlin-common/src/main/java/net/taler/common/ContractTerms.kt
@@ -23,13 +23,20 @@ import com.fasterxml.jackson.annotation.JsonInclude
 import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_EMPTY
 import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL
 import com.fasterxml.jackson.annotation.JsonProperty
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
 import net.taler.common.TalerUtils.getLocalizedString
 
+@Serializable
 @JsonIgnoreProperties(ignoreUnknown = true)
 data class ContractTerms(
     val summary: String,
-    val products: List<ContractProduct>,
-    val amount: Amount
+    @SerialName("summary_i18n")
+    val summaryI18n: Map<String, String>? = null,
+    val amount: Amount,
+    @SerialName("fulfillment_url")
+    val fulfillmentUrl: String,
+    val products: List<ContractProduct>
 )
 
 @JsonInclude(NON_NULL)
@@ -52,13 +59,17 @@ abstract class Product {
         get() = getLocalizedString(descriptionI18n, description)
 }
 
+@Serializable
 data class ContractProduct(
-    override val productId: String?,
+    @SerialName("product_id")
+    override val productId: String? = null,
     override val description: String,
-    override val descriptionI18n: Map<String, String>?,
+    @SerialName("description_i18n")
+    override val descriptionI18n: Map<String, String>? = null,
     override val price: Amount,
-    override val location: String?,
-    override val image: String?,
+    @SerialName("delivery_location")
+    override val location: String? = null,
+    override val image: String? = null,
     val quantity: Int
 ) : Product() {
     @get:JsonIgnore
-- 
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