Adjust approach for search results for listable rooms

Added "/listable-room" endpoint for listing listable rooms with a similar
result format like the "/room" endpoint.
Switched left sidebar to use Conversation components for displaying
results.

Signed-off-by: Vincent Petry <vincent@nextcloud.com>

8 files changed, 162 insertions, 41 deletions

diff --git a/appinfo/routes.php b/appinfo/routes.php
index f702840f1..1c6aed1ad 100644
--- a/appinfo/routes.php
+++ b/appinfo/routes.php
@@ -184,6 +184,14 @@ return [
 			],
 		],
 		[
+			'name' => 'Room#getListedRooms',
+			'url' => '/api/{apiVersion}/listed-room',
+			'verb' => 'GET',
+			'requirements' => [
+				'apiVersion' => 'v3',
+			],
+		],
+		[
 			'name' => 'Room#createRoom',
 			'url' => '/api/{apiVersion}/room',
 			'verb' => 'POST',
diff --git a/docs/conversation.md b/docs/conversation.md
index 10899e69b..1c57556b6 100644
--- a/docs/conversation.md
+++ b/docs/conversation.md
@@ -4,6 +4,63 @@
 * Base endpoint for API v2 is: `/ocs/v2.php/apps/spreed/api/v2`
 * Base endpoint for API v3 is: `/ocs/v2.php/apps/spreed/api/v3`
 
+## Get listed conversations
+
+* Method: `GET`
+* Endpoint: `/listed-room`
+
+* Response:
+    - Status code:
+        + `200 OK`
+        + `401 Unauthorized` when the user is not logged in
+
+    - Header:
+
+        field | type | Description
+        ------|------|------------
+        `searchTerm` | string | search term
+
+    - Data:
+        Array of conversations, each conversation has at least:
+
+        field | type | API | Description
+        ------|------|-----|------------
+        `token` | string | * | Token identifier of the conversation which is used for further interaction
+        `type` | int | * | See list of conversation types in the [constants list](constants.md#Conversation-types)
+        `name` | string | * | Name of the conversation (can also be empty)
+        `displayName` | string | * | `name` if non empty, otherwise it falls back to a list of participants
+        `participantType` | int | * | Permissions level of the current user
+        `attendeeId` | int | v3 | Unique attendee id
+        `attendeePin` | string | v3 | Unique dial-in authentication code for this user, when the conversation has SIP enabled (see `sipEnabled` attribute)
+        `actorType` | string | v3 | Currently known `users|guests|emails|groups`
+        `actorId` | string | v3 | The unique identifier for the given actor type
+        `participantInCall` | bool | 🏴 v1 | Flag if the current user is in the call (deprecated, use `participantFlags` instead)
+        `participantFlags` | int | * | Flags of the current user (only available with `in-call-flags` capability)
+        `readOnly` | int | * | Read-only state for the current user (only available with `read-only-rooms` capability)
+        `listable` | int | * | Listable scope for the room (only available with `listable-rooms` capability)
+        `count` | int | 🏴 v1 | **Deprecated:** ~~Number of active users~~ - always returns `0`
+        `numGuests` | int | 🏴 v1 | Number of active guests
+        `lastPing` | int | * | Timestamp of the last ping of the current user (should be used for sorting)
+        `sessionId` | string | * | `'0'` if not connected, otherwise a 512 character long string
+        `hasPassword` | bool | * | Flag if the conversation has a password
+        `hasCall` | bool | * | Flag if the conversation has an active call
+        `canStartCall` | bool | * | Flag if the user can start a new call in this conversation (joining is always possible) (only available with `start-call-flag` capability)
+        `canDeleteConversation` | bool | 🆕 v2 | Flag if the user can delete the conversation for everyone (not possible without moderator permissions or in one-to-one conversations)
+        `canLeaveConversation` | bool | 🆕 v2 | Flag if the user can leave the conversation (not possible for the last user with moderator permissions)
+        `lastActivity` | int | * | Timestamp of the last activity in the conversation, in seconds and UTC time zone
+        `isFavorite` | bool | * | Flag if the conversation is favorited by the user
+        `notificationLevel` | int | * | The notification level for the user (one of `Participant::NOTIFY_*` (1-3))
+        `lobbyState` | int | * | Webinary lobby restriction (0-1), if the participant is a moderator they can always join the conversation (only available with `webinary-lobby` capability)
+        `lobbyTimer` | int | * | Timestamp when the lobby will be automatically disabled (only available with `webinary-lobby` capability)
+        `sipEnabled` | int | v3 | SIP enable status (0-1)
+        `canEnableSIP` | int | v3 | Whether the given user can enable SIP for this conversation. Note that when the token is not-numeric only, SIP can not be enabled even if the user is permitted and a moderator of the conversation
+        `unreadMessages` | int | * | Number of unread chat messages in the conversation (only available with `chat-v2` capability)
+        `unreadMention` | bool | * | Flag if the user was mentioned since their last visit
+        `lastReadMessage` | int | * | ID of the last read message in a room (only available with `chat-read-marker` capability)
+        `lastMessage` | message | * | Last message in a conversation if available, otherwise empty
+        `objectType` | string | * | The type of object that the conversation is associated with; "share:password" if the conversation is used to request a password for a share, otherwise empty
+        `objectId` | string | * | Share token if "objectType" is "share:password", otherwise empty
+
 ## Get user´s conversations
 
 * Method: `GET`
diff --git a/docs/events.md b/docs/events.md
index 227326a85..5b7558646 100644
--- a/docs/events.md
+++ b/docs/events.md
@@ -12,6 +12,11 @@ Explanations:
 * Event name: `OCA\Talk\Controller\RoomController::EVENT_BEFORE_ROOMS_GET`
 * Since: 8.0.0
 
+### Search listed conversations
+
+* Event class: `OCA\Talk\Events\UserEvent`
+* Event name: `OCA\Talk\Controller\RoomController::EVENT_BEFORE_LISTED_ROOMS_GET`
+* Since: 11.0.0
 
 ### Create conversation
 
diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index c05c98bdd..047fd72f7 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -68,6 +68,7 @@ use OCP\UserStatus\IUserStatus;
 
 class RoomController extends AEnvironmentAwareController {
 	public const EVENT_BEFORE_ROOMS_GET = self::class . '::preGetRooms';
+	public const EVENT_BEFORE_LISTED_ROOMS_GET = self::class . '::preGetListedRooms';
 
 	/** @var string|null */
 	protected $userId;
@@ -220,6 +221,37 @@ class RoomController extends AEnvironmentAwareController {
 	}
 
 	/**
+	 * Search listed rooms
+	 *
+	 * @NoAdminRequired
+	 *
+	 * @param string $searchTerm search term
+	 * @return DataResponse
+	 */
+	public function getListedRooms(string $searchTerm = ''): DataResponse {
+		$event = new UserEvent($this->userId);
+		$this->dispatcher->dispatch(self::EVENT_BEFORE_LISTED_ROOMS_GET, $event);
+
+		$rooms = $this->manager->getListedRoomsForUser($this->userId, $searchTerm);
+
+		$return = [];
+		foreach ($rooms as $room) {
+			try {
+				$roomData = $this->formatRoom($room, null);
+				// since formatRoom will break early due to having no participant,
+				// we populate the remaining base attributes here
+				$return[] = $this->populateBaseRoomData($roomData, $room, $this->userId);
+				// TODO: should we populate more ?
+			} catch (RoomNotFoundException $e) {
+			} catch (\RuntimeException $e) {
+			}
+		}
+
+		return new DataResponse($return, Http::STATUS_OK);
+	}
+
+
+	/**
 	 * @PublicPage
 	 *
 	 * @param string $token
@@ -599,20 +631,12 @@ class RoomController extends AEnvironmentAwareController {
 		$attendee = $currentParticipant->getAttendee();
 		$userId = $attendee->getActorType() === Attendee::ACTOR_USERS ? $attendee->getActorId() : '';
 
+		$roomData = $this->populateBaseRoomData($roomData, $room, $userId);
+
 		$roomData = array_merge($roomData, [
-			'name' => $room->getName(),
-			'displayName' => $room->getDisplayName($userId),
-			'objectType' => $room->getObjectType(),
-			'objectId' => $room->getObjectId(),
 			'participantType' => $attendee->getParticipantType(),
-			'readOnly' => $room->getReadOnly(),
-			'listable' => $room->getListable(),
-			'hasCall' => $room->getActiveSince() instanceof \DateTimeInterface,
-			'lastActivity' => $lastActivity,
 			'isFavorite' => $attendee->isFavorite(),
 			'notificationLevel' => $attendee->getNotificationLevel(),
-			'lobbyState' => $room->getLobbyState(),
-			'lobbyTimer' => $lobbyTimer,
 		]);
 		if ($this->getAPIVersion() >= 3) {
 			if ($this->talkConfig->isSIPConfigured()) {
@@ -732,6 +756,33 @@ class RoomController extends AEnvironmentAwareController {
 		return $roomData;
 	}
 
+	protected function populateBaseRoomData(array $roomData, Room $room, $userId) {
+		$lastActivity = $room->getLastActivity();
+		if ($lastActivity instanceof \DateTimeInterface) {
+			$lastActivity = $lastActivity->getTimestamp();
+		} else {
+			$lastActivity = 0;
+		}
+
+		$lobbyTimer = $room->getLobbyTimer();
+		if ($lobbyTimer instanceof \DateTimeInterface) {
+			$lobbyTimer = $lobbyTimer->getTimestamp();
+		} else {
+			$lobbyTimer = 0;
+		}
+
+		return array_merge($roomData, [
+			'name' => $room->getName(),
+			'displayName' => $room->getDisplayName($userId),
+			'objectType' => $room->getObjectType(),
+			'objectId' => $room->getObjectId(),
+			'readOnly' => $room->getReadOnly(),
+			'listable' => $room->getListable(),
+			'hasCall' => $room->getActiveSince() instanceof \DateTimeInterface,
+			'lobbyState' => $room->getLobbyState(),
+		]);
+	}
+
 	/**
 	 * @param Room $room
 	 * @param Participant $participant
diff --git a/lib/Manager.php b/lib/Manager.php
index 4777142ee..e6efc5345 100644
--- a/lib/Manager.php
+++ b/lib/Manager.php
@@ -347,7 +347,7 @@ class Manager {
 		$allowedRoomTypes = [Room::GROUP_CALL, Room::PUBLIC_CALL];
 		$allowedListedTypes = [Room::LISTABLE_ALL];
 		if (!$this->isGuestUser($userId)) {
-			$listedType[] = Room::LISTABLE_USERS;
+			$allowedListedTypes[] = Room::LISTABLE_USERS;
 		}
 		$query = $this->db->getQueryBuilder();
 		$query->select('r.*')
diff --git a/src/components/LeftSidebar/ConversationsList/Conversation.vue b/src/components/LeftSidebar/ConversationsList/Conversation.vue
index e34360c71..bb1013b18 100644
--- a/src/components/LeftSidebar/ConversationsList/Conversation.vue
+++ b/src/components/LeftSidebar/ConversationsList/Conversation.vue
@@ -45,7 +45,7 @@
 			:highlighted="counterShouldBePrimary">
 			<strong>{{ item.unreadMessages }}</strong>
 		</AppNavigationCounter>
-		<template slot="actions">
+		<template v-if="!isSearchResult" slot="actions">
 			<ActionButton v-if="canFavorite"
 				:icon="iconFavorite"
 				@click.prevent.exact="toggleFavoriteConversation">
@@ -124,6 +124,10 @@ export default {
 		ConversationIcon,
 	},
 	props: {
+		isSearchResult: {
+			type: Boolean,
+			default: false,
+		},
 		item: {
 			type: Object,
 			default: function() {
diff --git a/src/components/LeftSidebar/LeftSidebar.vue b/src/components/LeftSidebar/LeftSidebar.vue
index 5af424057..4b12bcca4 100644
--- a/src/components/LeftSidebar/LeftSidebar.vue
+++ b/src/components/LeftSidebar/LeftSidebar.vue
@@ -47,12 +47,11 @@
 				<template v-if="searchResultsListedConversations.length !== 0">
 					<Caption
 						:title="t('spreed', 'Listed conversations')" />
-					<li role="presentation">
-						<!-- FIXME: use ConversationsList instead ? -->
-						<ConversationsOptionsList
-							:items="searchResultsListedConversations"
-							@click="joinConversation" />
-					</li>
+					<Conversation
+						v-for="item of searchResultsListedConversations"
+						:key="item.id"
+						:item="item"
+						:is-search-result="true" />
 				</template>
 				<template v-if="searchResultsUsers.length !== 0">
 					<Caption
@@ -114,6 +113,7 @@
 import AppNavigation from '@nextcloud/vue/dist/Components/AppNavigation'
 import Caption from '../Caption'
 import ConversationsList from './ConversationsList/ConversationsList'
+import Conversation from './ConversationsList/Conversation'
 import ConversationsOptionsList from '../ConversationsOptionsList'
 import Hint from '../Hint'
 import SearchBox from './SearchBox/SearchBox'
@@ -144,6 +144,7 @@ export default {
 		Hint,
 		SearchBox,
 		NewGroupConversation,
+		Conversation,
 	},
 
 	mixins: [
@@ -286,18 +287,7 @@ export default {
 		async fetchListedConversations() {
 			this.listedConversationsLoading = true
 			const response = await searchListedConversations(this.searchText)
-			if (response.data.ocs.data?.entries?.length) {
-				this.searchResultsListedConversations = response.data.ocs.data.entries.map((result) => {
-					return {
-						// TODO: extract token ?
-						id: result.resourceUrl,
-						label: result.title,
-						icon: result.icon,
-					}
-				})
-			} else {
-				this.searchResultsListedConversations = []
-			}
+			this.searchResultsListedConversations = response.data.ocs.data
 			this.listedConversationsLoading = false
 		},
 
@@ -308,10 +298,6 @@ export default {
 			this.focusInitialise()
 		},
 
-		async joinConversation(item) {
-			console.log('TODO: Implement join conversation: ', item)
-		},
-
 		/**
 		 * Create a new conversation with the selected group/user/circle
 		 * @param {Object} item The autocomplete suggestion to start a conversation with
diff --git a/src/services/conversationsService.js b/src/services/conversationsService.js
index a4b8e41b2..b88a5bc18 100644
--- a/src/services/conversationsService.js
+++ b/src/services/conversationsService.js
@@ -90,19 +90,29 @@ const checkTalkVersionHash = function(response) {
 
 /**
  * Fetch listed conversations
- * @param {string} searchText The string that will be used in the search query.
+ * @param {string} searchTerm The string that will be used in the search query.
  */
-const searchListedConversations = async function(searchText) {
+const searchListedConversations = async function(searchTerm) {
 	try {
-		// use search provider to find listed conversations
-		return axios.get(generateOcsUrl('search/providers/talk-listed-conversations', 2) + 'search', {
+		const response = await axios.get(generateOcsUrl('apps/spreed/api/v3', 2) + 'listed-room', {
 			params: {
-				term: searchText,
-				format: 'json',
+				searchTerm,
 			},
 		})
+
+		if (maintenanceWarning) {
+			maintenanceWarning.hideToast()
+			maintenanceWarning = null
+		}
+
+		return response
 	} catch (error) {
-		console.debug('Error while searching listedk conversations: ', error)
+		if (error.response && error.response.status === 503 && !maintenanceWarning) {
+			maintenanceWarning = showError(t('spreed', 'Nextcloud is in maintenance mode, please reload the page'), {
+				timeout: TOAST_PERMANENT_TIMEOUT,
+			})
+		}
+		throw error
 	}
 }
 /**