add CommonMultivariantStringSerializer

src/main/kotlin/com/github/insanusmokrassar/SauceNaoAPI/models/ResultData.kt

@@ -1,38 +1,49 @@
 package com.github.insanusmokrassar.SauceNaoAPI.models
 
-import kotlinx.serialization.Optional
-import kotlinx.serialization.SerialName
-import kotlinx.serialization.Serializable
+import com.github.insanusmokrassar.SauceNaoAPI.utils.CommonMultivariantStringSerializer
+import kotlinx.serialization.*
+import kotlinx.serialization.internal.ArrayListSerializer
+import kotlinx.serialization.internal.StringSerializer
 
 @Serializable
 data class ResultData(
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("danbooru_id")
     @Optional
     val danbooruId: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("gelbooru_id")
     @Optional
     val gelbooruId: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("drawr_id")
     @Optional
     val drawrId: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("pixiv_id")
     @Optional
     val pixivId: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @Optional
     val title: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @Optional
     val creator: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @Optional
     val material: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("member_name")
     @Optional
     val memberName: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @SerialName("member_id")
     @Optional
     val memberId: String? = null,
+    @Serializable(CommonMultivariantStringSerializer::class)
     @Optional
     val characters: String? = null,
     @SerialName("ext_urls")
     @Optional
     val extUrls: List<String> = emptyList()
-)
+)

src/main/kotlin/com/github/insanusmokrassar/SauceNaoAPI/utils/CommonMultivariantStringSerializer.kt

@@ -0,0 +1,19 @@
+package com.github.insanusmokrassar.SauceNaoAPI.utils
+
+import kotlinx.serialization.*
+import kotlinx.serialization.internal.ArrayListSerializer
+import kotlinx.serialization.internal.StringSerializer
+
+
+@Serializer(String::class)
+object CommonMultivariantStringSerializer : KSerializer<String> by StringSerializer {
+    private val stringArraySerializer = ArrayListSerializer(StringSerializer)
+
+    override fun deserialize(decoder: Decoder): String {
+        return try {
+            decoder.decodeSerializableValue(StringSerializer)
+        } catch (e: Exception) {
+            decoder.decodeSerializableValue(stringArraySerializer).joinToString()
+        }
+    }
+}