use org.jetbrains.kotlinx:kotlinx-serialization-json

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

library/src/main/java/com/owncloud/android/lib/resources/assistant/v2/CreateTaskRemoteOperationV2.kt

@@ -13,28 +13,31 @@ import com.nextcloud.operations.PostMethod
 import com.owncloud.android.lib.common.operations.RemoteOperation
 import com.owncloud.android.lib.common.operations.RemoteOperationResult
 import com.owncloud.android.lib.resources.assistant.v2.model.TaskTypeData
+import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaTypeOrNull
 import okhttp3.RequestBody.Companion.toRequestBody
 import org.apache.commons.httpclient.HttpStatus
-import java.io.Serializable
 
 open class CreateTaskRemoteOperationV2(
     private val input: String,
     private val taskType: TaskTypeData
 ) : RemoteOperation<Void>() {
-    protected open fun buildRequestBody(): HashMap<String, Serializable?> {
+    protected open fun buildRequestBody(): String {
         val inputField = hashMapOf("input" to input)
 
-        return hashMapOf(
-            "input" to inputField,
-            "type" to taskType.id,
-            "appId" to "assistant",
-            "customId" to ""
-        )
+        val body =
+            hashMapOf(
+                "input" to inputField,
+                "type" to taskType.id,
+                "appId" to "assistant",
+                "customId" to ""
+            )
+
+        return Json.encodeToString(body)
     }
 
     override fun run(client: NextcloudClient): RemoteOperationResult<Void> {
-        val json = gson.toJson(buildRequestBody())
+        val json = buildRequestBody()
         val request = json.toRequestBody("application/json".toMediaTypeOrNull())
         val postMethod = PostMethod(client.baseUri.toString() + TAG_URL, true, request)
         val status = postMethod.execute(client)

library/src/main/java/com/owncloud/android/lib/resources/assistant/v2/CreateTranslationTaskRemoteOperation.kt

@@ -9,7 +9,10 @@ package com.owncloud.android.lib.resources.assistant.v2
 
 import com.owncloud.android.lib.resources.assistant.v2.model.TaskTypeData
 import com.owncloud.android.lib.resources.assistant.v2.model.TranslationRequest
-import java.io.Serializable
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.encodeToJsonElement
+import kotlinx.serialization.json.put
 
 class CreateTranslationTaskRemoteOperation(
     private val input: TranslationRequest,
@@ -18,11 +21,15 @@ class CreateTranslationTaskRemoteOperation(
         input = "",
         taskType = taskType
     ) {
-    override fun buildRequestBody(): HashMap<String, Serializable?> =
-        hashMapOf(
-            "input" to input,
-            "type" to taskType.id,
-            "appId" to "assistant",
-            "customId" to ""
-        )
+    override fun buildRequestBody(): String {
+        val jsonObject =
+            buildJsonObject {
+                put("input", Json.encodeToJsonElement(input))
+                put("type", taskType.id)
+                put("appId", "assistant")
+                put("customId", "")
+            }
+
+        return Json.encodeToString(jsonObject)
+    }
 }

library/src/main/java/com/owncloud/android/lib/resources/assistant/v2/model/Translation.kt

@@ -9,7 +9,6 @@ package com.owncloud.android.lib.resources.assistant.v2.model
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.Json
 
 data class TranslationLanguage(
     val name: String,
@@ -26,7 +25,7 @@ data class TranslationRequest(
     @SerialName("target_language")
     val targetLanguage: String,
     val input: String
-) : java.io.Serializable
+)
 
 data class TranslationModel(
     val model: String,