Include last private chat activity in list of contacts

Fixes #1722.

briar-headless/README.md

@@ -67,7 +67,8 @@ Returns a JSON array of contacts:
     "contactId": 1,
     "alias" : "A local nickname",
     "handshakePublicKey": "XnYRd7a7E4CTqgAvh4hCxh/YZ0EPscxknB9ZcEOpSzY=",
-    "verified": true
+    "verified": true,
+    "lastChatActivity": 1557838312175
 }
 ```
 

briar-headless/src/main/java/org/briarproject/briar/headless/contact/ContactControllerImpl.kt

@@ -17,6 +17,7 @@ import org.briarproject.bramble.api.event.Event
 import org.briarproject.bramble.api.event.EventListener
 import org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH
 import org.briarproject.bramble.util.StringUtils.toUtf8
+import org.briarproject.briar.api.conversation.ConversationManager
 import org.briarproject.briar.headless.event.WebSocketController
 import org.briarproject.briar.headless.getContactIdFromPathParam
 import org.briarproject.briar.headless.getFromJson
@@ -38,6 +39,7 @@ internal class ContactControllerImpl
 @Inject
 constructor(
     private val contactManager: ContactManager,
+    private val conversationManager: ConversationManager,
     private val objectMapper: ObjectMapper,
     private val webSocket: WebSocketController
 ) : ContactController, EventListener {
@@ -61,7 +63,7 @@ constructor(
 
     override fun list(ctx: Context): Context {
         val contacts = contactManager.contacts.map { contact ->
-            contact.output()
+            contact.output(conversationManager)
         }
         return ctx.json(contacts)
     }

briar-headless/src/main/java/org/briarproject/briar/headless/contact/OutputContact.kt

@@ -3,17 +3,22 @@ package org.briarproject.briar.headless.contact
 import org.briarproject.bramble.api.contact.Contact
 import org.briarproject.bramble.api.contact.event.ContactAddedEvent
 import org.briarproject.bramble.identity.output
+import org.briarproject.briar.api.conversation.ConversationManager
 import org.briarproject.briar.headless.json.JsonDict
 
-internal fun Contact.output() = JsonDict(
+internal fun Contact.output(conversationManager: ConversationManager) = JsonDict(
     "contactId" to id.int,
     "author" to author.output(),
-    "verified" to isVerified
+    "verified" to isVerified,
+    "lastChatActivity" to this.getLastChatActivity(conversationManager)
 ).apply {
     alias?.let { put("alias", it) }
     handshakePublicKey?.let { put("handshakePublicKey", it.encoded) }
 }
 
+internal fun Contact.getLastChatActivity(conversationManager: ConversationManager) =
+    conversationManager.getGroupCount(this.id).latestMsgTime
+
 internal fun ContactAddedEvent.output() = JsonDict(
     "contactId" to contactId.int,
     "verified" to isVerified

briar-headless/src/test/java/org/briarproject/briar/headless/ControllerTest.kt

@@ -14,6 +14,7 @@ import org.briarproject.bramble.api.sync.Message
 import org.briarproject.bramble.api.system.Clock
 import org.briarproject.bramble.test.TestUtils.*
 import org.briarproject.bramble.util.StringUtils.getRandomString
+import org.briarproject.briar.api.conversation.ConversationManager
 import org.briarproject.briar.headless.event.WebSocketController
 import org.skyscreamer.jsonassert.JSONAssert.assertEquals
 import org.skyscreamer.jsonassert.JSONCompareMode.STRICT
@@ -23,6 +24,7 @@ import javax.servlet.http.HttpServletResponse
 abstract class ControllerTest {
 
     protected val contactManager = mockk<ContactManager>()
+    protected val conversationManager = mockk<ConversationManager>()
     protected val identityManager = mockk<IdentityManager>()
     protected val clock = mockk<Clock>()
     protected val ctx = mockk<Context>()

briar-headless/src/test/java/org/briarproject/briar/headless/contact/ContactControllerTest.kt

@@ -35,7 +35,7 @@ internal class ContactControllerTest : ControllerTest() {
     private val pendingContact = getPendingContact()
 
     private val controller =
-        ContactControllerImpl(contactManager, objectMapper, webSocketController)
+        ContactControllerImpl(contactManager, conversationManager, objectMapper, webSocketController)
 
     @Test
     fun testEmptyContactList() {
@@ -47,7 +47,8 @@ internal class ContactControllerTest : ControllerTest() {
     @Test
     fun testList() {
         every { contactManager.contacts } returns listOf(contact)
-        every { ctx.json(listOf(contact.output())) } returns ctx
+        every { conversationManager.getGroupCount(contact.id).latestMsgTime } returns timestamp
+        every { ctx.json(listOf(contact.output(conversationManager))) } returns ctx
         controller.list(ctx)
     }
 
@@ -264,6 +265,7 @@ internal class ContactControllerTest : ControllerTest() {
 
     @Test
     fun testOutputContact() {
+        every { conversationManager.getGroupCount(contact.id).latestMsgTime } returns timestamp
         assertNotNull(contact.handshakePublicKey)
         val json = """
             {
@@ -271,10 +273,11 @@ internal class ContactControllerTest : ControllerTest() {
                 "author": ${toJson(author.output())},
                 "alias" : "${contact.alias}",
                 "handshakePublicKey": ${toJson(contact.handshakePublicKey!!.encoded)},
-                "verified": ${contact.isVerified}
+                "verified": ${contact.isVerified},
+                "lastChatActivity": ${timestamp}
             }
         """
-        assertJsonEquals(json, contact.output())
+        assertJsonEquals(json, contact.output(conversationManager))
     }
 
     @Test

briar-headless/src/test/java/org/briarproject/briar/headless/messaging/MessagingControllerImplTest.kt

@@ -32,7 +32,6 @@ import org.junit.jupiter.api.Test
 internal class MessagingControllerImplTest : ControllerTest() {
 
     private val messagingManager = mockk<MessagingManager>()
-    private val conversationManager = mockk<ConversationManager>()
     private val privateMessageFactory = mockk<PrivateMessageFactory>()
     private val dbExecutor = ImmediateExecutor()