Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

1.8.1 - 2019-08-06

Fixed

Fix race condition related to the usage of state property of PPRepeater.

1.8.0 - 2019-08-01

Added

Add ability to set push notification title override for a specific room.

1.7.3 - 2019-07-19

Fixed

Synchronized access to members of PCCurrentUser, PCReadCursorDebouncer, PCTokenProvider and ChatManager which are mutable in order to prevent data races between threads

1.7.2 - 2019-07-18

Fixed

Synchronized access to members of PCRoom and PCUser which are mutable in order to prevent data races between threads

1.7.1 - 2019-07-17

Fixed

Resolved a concurrency bug which could cause app crash when accessing a user store from multiple threads. This tended to manifest while creating lots of subscriptions concurrently, including when returning from the background.

1.7.0 - 2019-07-01

Added

createRoom now allows passing an id parameter. This id is then used to refer to the room thereafter. If an id is not provided, a generated id is returned.
Moved to v6 HTTP API.

1.6.0 - 2019-06-24

Don't allow references to newly deserialised entities to escape once their details have been merged in to the canonical copies of the entity.
Add onMessageDeleted hook that is invoked when a single message is deleted.
Move api version to v5

1.5.3 - 2019-06-24

Remove unnecessary async operations (internal ones)
Don't allow references to newly deserialised entities to escape once their details have been merged in to the canonical copies of the entity.

1.5.2 - 2019-06-11

Fixed

Potential memory corruptions in PCSynchronizedArrays

1.5.1 - 2019-05-28

Fixed

Updated dependency Pusher Beams to the latest version (2.0.2).

1.5.0 - 2019-04-24

Added

unreadCount and lastMessageAt properties added to rooms. These reflect values of unread messages and when the last message was sent at in the room.

1.4.4 - 2019-04-01

### Fixed

Refresh URL's were incorrectly being constructed.

1.4.3 - 2019-03-20

Fixed

PCMultipartAttachmentPayload.url is now public.

1.4.2 - 2019-03-20

Fixed

Publicly exposed Multipart structs were previously using the internal access modifier by default. This has now been changed to public.

1.4.1 - 2019-03-12

Fixed

Added public initialiser to PCPartUrlRequest

1.4.0 - 2019-03-08

Added

Multipart messaging support:
sendMultipartMessage, sendSimpleMessage, subscribeToRoomMultipart and fetchMultipartMessages methods.
onMultipartMessage delegate method.

Deprecated

sendMessage, subscribeToRoom and fetchMessagesFromRoom are deprecated in favour of their multipart counterparts. They will be removed in a future major release of the SDK.

1.3.1 - 2019-03-05

Fixed

PCSynchronizedDictionary uses a serial queue. Previously setting values would happen ansynchronously without any barriers which could give us a wrong result. For sake of simplicity, the queue has been made serial with sync operations.

1.3.0 - 2019-01-25

Added

You can call unsubscribe() on a PCRoom to unsubscribe from it
onNewReadCursor has been added to the PCChatManagerDelegate, which allows you to get notified of read cursor updates for the current user. Note that to support existing users of the read cursor functionality, onNewReadCursor on the PCRoomDelegate will also still be called for new read cursors for the current user. This functionality will be removed in a future release that contains other breaking changes (i.e. 2.0.0, in all likelihood)

Fixed

Appropriate PCChatManagerDelegate and PCRoomDelegate hooks will be called upon reconnection when state has changed during the period of disconnection
createdAtDate, updatedAtDate, and deletedAtDate should no longer lead to crashes
Only call PCRoomDelegate functions once a room subscription has been fully established
Removed some race conditions
Fixed some reference cycles

Removed

PCRoomDelegate no longer has a restriction to ensure that conforming types also conform to NSObjectProtocol

1.2.3 - 2018-12-21

Fixed

Push notifications now work regardless of when registerForRemoteNotifications is called

1.2.2 - 2018-12-19

Fixed

Push notifications now work if registerDeviceToken is called before successfully connecting to Chatkit

1.2.1 - 2018-11-30

Added

deletedAt and deletedAtDate properties on PCRoom

1.2.0 - 2018-11-30

Added

Support for Push Notifications

1.1.0 - 2018-11-29

Added

Rooms now support customData
Message attachments now have a name property

Removed

deletedAt on PCRoom has been removed. It was never set so was never useful

1.0.0 - 2018-10-29

Changed

Breaking

All PCChatManagerDelegate and PCRoomDelegate functions are now prefixed with on, e.g. userJoined has become onUserJoined
PCRoomDelegate's newMessage function has had the new prefix removed to make it clearer that it is the function that gets called when a new message is received over the room subscription (including historical messages), so in conjunction with the change above it is now onMessage
All mentions (mainly relevant to function parameter names) of anything that was previously Id is now ID, e.g. roomId is now roomID
sendMessage parameter attachmentType renamed to attachment
The ordering of messages returned by fetchMessagesFromRoom is now from oldest to newest
Room members are only populated once you have subscribed to a room
Message attachments no longer have the fetchRequired property because you can no always directly use an attachment's link
startedTypingIn and stoppedTypingIn have both been removed. Use typing(in: ...) instead
Room IDs are now represented using Strings instead of Ints

Removed

lastSeenAt is no longer available on PCUser objects
fetchAttachment as it's no longer required (you can use the attachment's link directly)
userCameOnline and userWentOffline (replaced by onPresenceChanged)

Added

onPresenceChanged (replacing userCameOnline and userWentOffline)

0.10.3 - 2018-09-10

Fixed

No longer crashes if disconnect is called midway through a successful connection process

Changed

Bump PusherPlatform dependency to 0.6.2

0.10.2 - 2018-08-22

Added

A retry strategy can now be provided to PCTokenProvider as part of its init

0.10.1 - 2018-08-21

Fixed

Fixed potential crash upon reconnection

Changed

Bump PusherPlatform dependency to 0.6.1

0.10.0 - 2018-08-09

Changed

subscribeToRoom now has a (required) completion handler of type PCErrorCompletionHandler

Added

There is now a version of subscribeToRoom that takes a roomID in place of a PCRoom

0.9.0 - 2018-06-14

Changed

sendMessage now requires a value for the text parameter
All PCMessages must have a text property

0.8.4 - 2018-05-26

Fixed

Ensure that fetchMessagesFromRoom calls completion handler even if no messages were fetched

0.8.3 - 2018-05-25

Fixed

Ensure that fetchMessagesFromRoom returns the correct number of messages

0.8.2 - 2018-05-04

Changed

Requests resulting from setReadCursor are batched up if made in quick succession
File upload path has been updated to include the user ID

0.8.1 - 2018-04-24

Fixed

Fixed memory leak caused by delegates not having only weak references taken

PR: #77 Authored by: @steve228uk

0.8.0 - 2018-04-19

Changed

Bump PusherPlatform dependency to 0.5.0

0.7.2 - 2018-04-16

Fixed

Fixed typing events not being delivered properly #72
Fixed warnings in example app

0.7.1 - 2018-04-16

Fixed

Fixed sendMessage not working if no attachment was provided @steve228uk
leaveRoom no longer recursively calls itself #74

0.7.0 - 2018-03-26

Added

PCBaseClient added as a typealias for PPBaseClient

Changed

subscribeToRoom will attempt to join the PCCurrentUser to the room if the user is not already a member
PCRoom no longer stores the cursors that relate to it; they are now all accessed using the readCursor function on PCCurrentUser, and the return type of this is PCCursor? (an optional PCCursor)
PCCurrentUser's setCursor function has been renamed to setReadCursor
cursorSet renamed to newCursor in PCRoomDelegate
Bump PusherPlatform dependency to 0.4.2
fetchToken calls to PCTokenProvider are queued if there's an existing request underway

Removed

ChatManager no longer stores a reference to the users list, nor the userSubscription
PCBasicCursorState has been removed so now if you try to access the read cursors for a given userId-roomId combination you will either receive a PCCursor or nil
currentUserCursor has been removed from PCRoom; again, you'll instead need to use the readCursor function on PCCurrentUser
getAllRooms has been removed
getJoinedRooms has been removed

0.6.4 - 2018-03-01

Changed

Bump PusherPlatform dependency to 0.4.1

Fixed

Test target now works as expected

0.6.3 - 2018-02-26

Changed

Use different underlying PusherPlatform Instance to connect to presence service

0.6.2 - 2018-02-26

Fixed

Ensure connection completion handlers get called even if the connecting user is not a member of any rooms

0.6.1 - 2018-02-26

Changed

Bump PusherPlatform dependency to 0.4.0

Added

Provide SDK info to PusherPlatform's Instances to add SDK info headers to requests

0.6.0 - 2018-02-16

Changed

ChatManager requires a userId be provided when it is instantiated
PCTokenProvider no longer takes a userId parameter when it is instantiated
The completion handler passed to connect of ChatManager will now only be called once the following has completed, either successfully or unsuccessfully:
- User subscription has been established
- Presence subscription has been established
- Initial cursors fetch has completed (getting initial values for read cursors of the current user for the rooms that they are a member of)
- Initial users fetch has completed (getting initial information about user IDs that were seen in the list of members of the rooms that the current user is a member of)
Bumped PusherPlatform dependency to 0.3.1

Added

Support for read cursors:

setCursor added to PCCurrentUser, usage of which looks like:

currentUser.setCursor(position: 123, roomId: myRoom.id) { error in
    guard error == nil else {
        print("Error setting cursor: \(error!.localizedDescription)")
        return
    }
    print("Succeeded in setting cursor")
}

cursorSet function added to PCRoomDelegate so that you can be notified of other members in the room updating their read cursors; the function looks like:

func cursorSet(cursor: PCCursor) {
    print("Cursor set for \(cursor.user.displayName) at position \(cursor.position)")
}

0.5.0 - 2018-01-26

Changed

Bump PusherPlatform dependency to 0.3.0
addMessage on PCCurrentUser has been deprecated
text property on PCMessage is now optional, i.e. String?

Added

Support for message attachments
sendMessage on PCCurrentUser, which replaces the now deprecated addMessage; usage looks like this:

currentUser.sendMessage(
    roomId: roomId,
    text: "My message text"
) { messageId, err in
    guard err == nil else {
        print("Error sending message \(err!.localizedDescription)")
        return
    }
    print("Successfully sent message with ID: \(messageId!)")
}

Note that the room's ID is now required as a parameter, not the whole PCRoom object as was the case with addMessage

sendMessage supports sending messages with an attachment; this looks like:

let imageName = Bundle.main.path(forResource: "dog", ofType: "jpg")
let imageURL = URL(fileURLWithPath: imageName!)

currentUser.sendMessage(
    roomId: roomId,
    text: "My message text",
    attachmentType: .fileURL(imageURL, name: "dog.jpg")
) { messageId, err in
    guard err == nil else {
        print("Error sending message \(err!.localizedDescription)")
        return
    }
    print("Successfully sent message with ID: \(messageId!)")
}

There are currently 3 different attachmentTypes supported, as described in the PCAttachmentType enum:

.fileData(_: Data, name: String): Use this if you have your file as Data. The name parameter is the name that the file will be given when it is stored by our servers.
.fileURL(_: URL, name: String): Use this if you have your file as Data. The name parameter is the name that the file will be given when it is stored by our servers.
.link(_: String, type: String): Use this if you have a file stored elsewhere that you would like to attach to a message without it being uploaded to and stored by the Chatkit servers. The type parameter currently needs to be one of "image", "video", "audio", or "file". This will likely eventually be encoded in an enum but for now we're leaving it as just a String while we finalise the API.

Here's an example of using the .link(_: String, type: String) attachment type:

currentUser.sendMessage(
    roomId: roomId,
    text: "My message text",
    attachmentType: .link("https://i.giphy.com/RpByGPT5VlZiE.gif", type: "image")
) { messageId, err in
    guard err == nil else {
        print("Error sending message \(err!.localizedDescription)")
        return
    }
    print("Successfully sent message with ID: \(messageId!)")
}

PCMessages now have an optional attachment property of type PCAttachment?. PCAttachment looks like this:

public struct PCAttachment {
    public let fetchRequired: Bool
    public let link: String
    public let type: String
}

If fetchRequired is true then it means that the attachment is stored on the Chatkit servers and you need to make a request to the Chatkit API to fetch a valid link. To do this you can use the fetchAttachment function that has been added to the PCCurrentUser class. You use that like this:

currentUser.fetchAttachment(attachmentLink) { fetchedAttachment, err in
    guard err == nil else {
        print("Error fetching attachment \(err!.localizedDescription)")
        return
    }

    print("Fetched attachment link: \(fetchedAttachment!.link)")
}

You can then use the fetchedAttachment.link to download the file, if you so wish.

downloadAttachment function added to PCCurrentUser to make downloading Chatkit-stored attachments easier. Once you've got the link from a PCFetchedAttachment you can either use your own download mechanism of choice or you can use the downloadAttachment function. Usage of it looks like this:

currentUser.downloadAttachment(
    fetchedAttachment.link,
    to: myChosenDestination,
    onSuccess: { url in
        print("Downloaded successfully to \(url.absoluteString)")
    },
    onError: { error in
        print("Failed to download attachment \(error.localizedDescription)")
    },
    progressHandler: { bytesReceived, totalBytesToReceive in
        print("Download progress: \(bytesReceived) / \(totalBytesToReceive)")
    }
)

Here myChosenDestination is an object of type PCDownloadFileDestination. This is a type based on Alamofire's DownloadFileDestination. It lets you specify where you'd like to have the download stored (upon completion).

One option for creating a PCDownloadFileDestination is to use the PCSuggestedDownloadDestination function, which is again based on an Alamofire construct: DownloadRequest.suggestedDownloadDestination. You can provide it a PPDownloadOptions object which determines whether or not the process of moving the downloaded file to the specified destination should be allowed to remove any existing files at the same path and if it should be able to create any required intermediate directories. This is expressed as an OptionSet with the following options:

.createIntermediateDirectories
.removePreviousFile

Typealiases for useful PusherPlatform types, specifically:

public typealias PCHTTPTokenProvider = PPHTTPEndpointTokenProvider
public typealias PCTokenProviderRequest = PPHTTPEndpointTokenProviderRequest
public typealias PCLogger = PPLogger
public typealias PCLogLevel = PPLogLevel
public typealias PCDefaultLogger = PPDefaultLogger
public typealias PCDownloadFileDestination = PPDownloadFileDestination
public typealias PCDownloadOptions = PPDownloadOptions
public typealias PCRetryStrategy = PPRetryStrategy
public typealias PCDefaultRetryStrategy = PPDefaultRetryStrategy

public func PCSuggestedDownloadDestination(...) { return PPSuggestedDownloadDestination(...) }

This means that importing PusherPlatform should never need to be done anymore.

PCMessage conforms to CustomDebugStringConvertible
Added Date versions of timestamp properties on: PCCurrentUser, PCUser, PCRoom, and PCMessage. For example, if you want a Date version of the createdAt property of a PCMessage you can now call .createdAtDate on the relevant PCMessage to get a Date. Thanks @nitrag for the suggestion.

0.4.3 - 2018-01-09

Added

ChatManager has had a disconnect function added to it so that you can disconnect from Chatkit.

0.4.2 - 2018-01-06

Fixed

Correctly access user_id in PCUserSubscription for typing indicator events. Thanks @neoighodaro!

0.4.1 - 2017-11-01

Changed

Bump PusherPlatform dependency to 0.2.1

0.4.0 - 2017-10-27

Changed

instanceId parameter renamed to instanceLocator

0.3.2 - 2017-10-25

Changed

Allow PCTokenProvider to take a requestInjector
Make userId optional when instantiating a PCTokenProvider
Bump PusherPlatform dependency to 0.1.32

0.3.1 - 2017-09-21

Added

Swift 4 support

0.3.0 - 2017-09-18

Added

Danger
Ability to update a room
User(s) can be added or removed from the room by providing ids or user objects.
Improved logging

Changed

PULL_REQUEST_TEMPLATE.md template
PusherChat -> PusherChatkit
Newly created room will be set to public as default
PCTestingTokenProvider -> PCTokenProvider
PCTokenProvider initialization

0.2.9 - 2017-08-02

Changed

PCTestingTokenProvider parameter name
Move to deneb cluster

0.2.8 - 2017-08-01

Added

avatarURL property in PCCurrentUser class
isPrivate property in PCRoom class
Default implementations of PCRoomDelegate and PCChatManagerDelegate protocol methods

Changed

PCRoomDelegate delegate methods

0.2.7 - 2017-07-28

Fixed

Update example code
Fix path

0.2.6 - 2017-07-26

Changed

Endpoint from /users to /users_by_ids

0.2.5 - 2017-07-19

Changed

Namespace

0.2.4 - 2017-07-18

Changed

Token provider URL.

0.2.3 - 2017-07-17

Removed

eventType

0.2.2 - 2017-06-29

Added

Add ability to delete a room
Add functionality to add a new user to the room

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Changelog

Unreleased

1.8.1 - 2019-08-06

Fixed

1.8.0 - 2019-08-01

Added

1.7.3 - 2019-07-19

Fixed

1.7.2 - 2019-07-18

Fixed

1.7.1 - 2019-07-17

Fixed

1.7.0 - 2019-07-01

Added

1.6.0 - 2019-06-24

1.5.3 - 2019-06-24

1.5.2 - 2019-06-11

Fixed

1.5.1 - 2019-05-28

Fixed

1.5.0 - 2019-04-24

Added

1.4.4 - 2019-04-01

1.4.3 - 2019-03-20

Fixed

1.4.2 - 2019-03-20

Fixed

1.4.1 - 2019-03-12

Fixed

1.4.0 - 2019-03-08

Added

Deprecated

1.3.1 - 2019-03-05

Fixed

1.3.0 - 2019-01-25

Added

Fixed

Removed

1.2.3 - 2018-12-21

Fixed

1.2.2 - 2018-12-19

Fixed

1.2.1 - 2018-11-30

Added

1.2.0 - 2018-11-30

Added

1.1.0 - 2018-11-29

Added

Removed

1.0.0 - 2018-10-29

Changed

Breaking

Removed

Added

0.10.3 - 2018-09-10

Fixed

Changed

0.10.2 - 2018-08-22

Added

0.10.1 - 2018-08-21

Fixed

Changed

0.10.0 - 2018-08-09

Changed

Added

0.9.0 - 2018-06-14

Changed

0.8.4 - 2018-05-26

Fixed

0.8.3 - 2018-05-25

Fixed

0.8.2 - 2018-05-04

Changed

0.8.1 - 2018-04-24