Backport of #2050

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

Author: tobiasKaminsky

library/src/main/java/com/owncloud/android/lib/resources/status/E2EVersion.kt

@@ -1,24 +1,33 @@
 /*
  * Nextcloud Android Library
  *
- * SPDX-FileCopyrightText: 2023-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2023-2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2026 Alper Ozturk <alper.ozturk@nextcloud.com>
  * SPDX-FileCopyrightText: 2023 Tobias Kaminsky <tobias@kaminsky.me>
  * SPDX-License-Identifier: MIT
  */
 package com.owncloud.android.lib.resources.status
 
 enum class E2EVersion(
-    val value: String
+    val values: List<String>
 ) {
-    V1_0("1.0"),
-    V1_1("1.1"),
-    V1_2("1.2"),
-    V2_0("2.0"),
-    V2_1("2.1"),
-    UNKNOWN("");
+    V1_0(listOf("1", "1.0")),
+    V1_1(listOf("1.1")),
+    V1_2(listOf("1.2")),
+    V2_0(listOf("2", "2.0")),
+    V2_1(listOf("2.1")),
+    UNKNOWN(listOf(""));
+
+    val value: String = values.last()
+
+    var unknownValue: String? = null
 
     companion object {
+        fun max(): E2EVersion = V2_1
+
         @JvmStatic
-        fun fromValue(v: String): E2EVersion = entries.firstOrNull { it.value == v } ?: UNKNOWN
+        fun fromValue(v: String?): E2EVersion =
+            entries.find { v in it.values }
+                ?: UNKNOWN.also { it.unknownValue = v }
     }
 }

library/src/test/java/com/owncloud/android/lib/resources/status/E2EVersionTests.kt

@@ -0,0 +1,79 @@
+/*
+ * Nextcloud Android Library
+ *
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: MIT
+ */
+package com.owncloud.android.lib.resources.status
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class E2EVersionTests {
+    @Test
+    fun testFromValueWhenGiven1ShouldReturnTrue() {
+        assertEquals(E2EVersion.V1_0, E2EVersion.fromValue("1"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven1Dot0ShouldReturnTrue() {
+        assertEquals(E2EVersion.V1_0, E2EVersion.fromValue("1.0"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven1Dot1ShouldReturnTrue() {
+        assertEquals(E2EVersion.V1_1, E2EVersion.fromValue("1.1"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven1Dot2ShouldReturnTrue() {
+        assertEquals(E2EVersion.V1_2, E2EVersion.fromValue("1.2"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven2ShouldReturnTrue() {
+        assertEquals(E2EVersion.V2_0, E2EVersion.fromValue("2"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven2Dot0ShouldReturnTrue() {
+        assertEquals(E2EVersion.V2_0, E2EVersion.fromValue("2.0"))
+    }
+
+    @Test
+    fun testFromValueWhenGiven2Dot1ShouldReturnTrue() {
+        assertEquals(E2EVersion.V2_1, E2EVersion.fromValue("2.1"))
+    }
+
+    @Test
+    fun testFromValueWhenGivenEmptyShouldReturnTrue() {
+        assertEquals(E2EVersion.UNKNOWN, E2EVersion.fromValue(""))
+    }
+
+    @Test
+    fun testFromValueWhenGivenUnknownShouldReturnTrue() {
+        assertEquals(E2EVersion.UNKNOWN, E2EVersion.fromValue("3"))
+    }
+
+    @Test
+    fun testFromValueWhenGivenNullShouldReturnTrue() {
+        assertEquals(E2EVersion.UNKNOWN, E2EVersion.fromValue(null))
+    }
+
+    @Test
+    fun testFromValueWhenGiven3Dot0ShouldReturnTrue() {
+        val version = E2EVersion.fromValue("3.0")
+        assertEquals(E2EVersion.UNKNOWN, version)
+        assertEquals("3.0", version.unknownValue)
+    }
+
+    @Test
+    fun testValues() {
+        assertEquals(E2EVersion.V1_0.value, "1.0")
+        assertEquals(E2EVersion.V1_1.value, "1.1")
+        assertEquals(E2EVersion.V1_2.value, "1.2")
+        assertEquals(E2EVersion.V2_0.value, "2.0")
+        assertEquals(E2EVersion.V2_1.value, "2.1")
+        assertEquals(E2EVersion.UNKNOWN.value, "")
+    }
+}