Add recent search results to global search (#7742)

* Add global search results history: keep the latest 25 items used in the global search, save them to an encrypted file store.

* Integrate the search history in the global search feature

* Add `MatrixClient.getRoomInfo` and use it in `GlobalSearchPresenter`

---------

Co-authored-by: ElementBot <android@element.io>

libraries/encrypted-db/src/main/kotlin/io/element/encrypteddb/crypto/EncryptedFile.kt

@@ -25,7 +25,7 @@ import java.io.FileOutputStream
  *
  * It uses hardcoded constants that are used in that library, for backwards compatibility reasons.
  */
-internal class EncryptedFile(
+class EncryptedFile(
     private val context: Context,
     private val file: File
 ) {

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/MatrixClient.kt

@@ -326,6 +326,11 @@ interface MatrixClient : ClientUrlContentFetcher {
      */
     suspend fun uploadMedia(mimeType: String, data: ByteArray): Result<String>
 
+    /**
+     * Returns the latest [RoomInfo] of a room, if known to the client, or `null` if the room is unknown.
+     */
+    suspend fun getRoomInfo(roomId: RoomId): Result<RoomInfo?>
+
     /**
      * Get a room info flow for a given room ID.
      * The flow will emit a new value whenever the room info is updated, skipping duplicates, and an empty [Optional] if the room is not found.

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/core/RoomId.kt

@@ -11,6 +11,7 @@ package io.element.android.libraries.matrix.api.core
 import io.element.android.libraries.androidutils.metadata.isInDebug
 import java.io.Serializable
 
+@kotlinx.serialization.Serializable
 @JvmInline
 value class RoomId(val value: String) : Serializable {
     init {

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/RustMatrixClient.kt

@@ -779,6 +779,14 @@ class RustMatrixClient(
         }
     }
 
+    override suspend fun getRoomInfo(roomId: RoomId): Result<RoomInfo?> = withContext(sessionDispatcher) {
+        runCatchingExceptions {
+            innerRoomListService.roomOrNull(roomId.value)?.use { room ->
+                roomInfoMapper.map(room.roomInfo())
+            }
+        }
+    }
+
     override fun getRoomInfoFlow(roomId: RoomId): Flow<Optional<RoomInfo>> {
         return mxCallbackFlow {
             val roomNotFound = innerRoomListService.roomOrNull(roomId.value).use { it == null }

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/FakeMatrixClient.kt

@@ -74,6 +74,7 @@ import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.test.TestScope
 import java.io.File
 import java.util.Optional
+import kotlin.jvm.optionals.getOrNull
 
 class FakeMatrixClient(
     override val sessionId: SessionId = A_SESSION_ID,
@@ -173,6 +174,7 @@ class FakeMatrixClient(
     var knockRoomLambda: (RoomIdOrAlias, String, List<String>) -> Result<RoomInfo?> = { _, _, _ ->
         Result.success(null)
     }
+    var getRoomInfoLambda = { _: RoomId -> Result.success<RoomInfo?>(null) }
     var getRoomInfoFlowLambda = { _: RoomId ->
         flowOf<Optional<RoomInfo>>(Optional.empty())
     }
@@ -379,6 +381,8 @@ class FakeMatrixClient(
         return Result.success(visitedRoomsId)
     }
 
+    override suspend fun getRoomInfo(roomId: RoomId): Result<RoomInfo?> = getRoomInfoLambda(roomId)
+
     override fun getRoomInfoFlow(roomId: RoomId) = getRoomInfoFlowLambda(roomId)
 
     var setAllSendQueuesEnabledLambda = lambdaRecorder(ensureNeverCalled = true) { _: Boolean ->