implement chat content

Signed-off-by: alperozturk <[email protected]>

Author: alperozturk96

library/src/main/java/com/owncloud/android/lib/resources/assistant/chat/model/ChatMessage.kt

@@ -8,6 +8,12 @@
 package com.owncloud.android.lib.resources.assistant.chat.model
 
 import com.google.gson.annotations.SerializedName
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+import java.util.Locale
+import kotlin.time.ExperimentalTime
+import kotlin.time.Instant
+import kotlin.time.toJavaInstant
 
 data class ChatMessage(
     val id: Long,
@@ -21,5 +27,22 @@ data class ChatMessage(
     val sources: String,
     val attachments: List<Any?>
 ) {
-    val isHuman: Boolean = (role == "human")
+    companion object {
+        private const val TIMESTAMP_PRESENTATION_TIME_PATTERN = "HH:mm"
+    }
+
+    fun isHuman(): Boolean {
+        return role == "human"
+    }
+
+    @OptIn(ExperimentalTime::class)
+    fun timestampRepresentation(): String {
+        val instant = Instant.fromEpochSeconds(timestamp)
+        val deviceZone = ZoneId.systemDefault()
+
+        val formatter = DateTimeFormatter.ofPattern(TIMESTAMP_PRESENTATION_TIME_PATTERN, Locale.getDefault())
+            .withZone(deviceZone)
+
+        return formatter.format(instant.toJavaInstant())
+    }
 }