Add support for retrieving a single send by ID from the VaultRepository (#564)

app/src/main/java/com/x8bit/bitwarden/data/vault/repository/VaultRepository.kt

@@ -93,6 +93,12 @@ interface VaultRepository : VaultLockManager {
      */
     fun getVaultFolderStateFlow(folderId: String): StateFlow<DataState<FolderView?>>
 
+    /**
+     * Flow that represents the data for a specific send as found by ID. This may emit `null` if
+     * the send cannot be found.
+     */
+    fun getSendStateFlow(sendId: String): StateFlow<DataState<SendView?>>
+
     /**
      * Emits the totp code result flow to listeners.
      */

app/src/main/java/com/x8bit/bitwarden/data/vault/repository/VaultRepositoryImpl.kt

@@ -263,6 +263,19 @@ class VaultRepositoryImpl(
                 initialValue = DataState.Loading,
             )
 
+    override fun getSendStateFlow(sendId: String): StateFlow<DataState<SendView?>> =
+        sendDataStateFlow
+            .map { dataState ->
+                dataState.map { sendData ->
+                    sendData.sendViewList.find { it.id == sendId }
+                }
+            }
+            .stateIn(
+                scope = unconfinedScope,
+                started = SharingStarted.Lazily,
+                initialValue = DataState.Loading,
+            )
+
     override fun emitTotpCodeResult(totpCodeResult: TotpCodeResult) {
         mutableTotpCodeResultFlow.tryEmit(totpCodeResult)
     }