Fix skip slow mode capability not handled

Sources/StreamChat/Controllers/ChannelController/ChannelController.swift

@@ -1161,7 +1161,8 @@ public class ChatChannelController: DataController, DelegateCallable, DataStoreP
     /// Returns the current cooldown time for the channel. Returns 0 in case there is no cooldown active.
     public func currentCooldownTime() -> Int {
         guard let cooldownDuration = channel?.cooldownDuration, cooldownDuration > 0,
-              let currentUserLastMessage = channel?.lastMessageFromCurrentUser else {
+              let currentUserLastMessage = channel?.lastMessageFromCurrentUser,
+              channel?.ownCapabilities.contains(.skipSlowMode) == false else {
             return 0
         }
 

Sources/StreamChat/Models/Channel.swift

@@ -359,6 +359,8 @@ public struct ChannelCapability: RawRepresentable, ExpressibleByStringLiteral, H
     public static var typingEvents: Self = "typing-events"
     /// Indicates that channel slow mode is active.
     public static var slowMode: Self = "slow-mode"
+    /// Ability to skip the slow mode when it's active.
+    public static var skipSlowMode: Self = "skip-slow-mode"
     /// Ability to join a call.
     public static var joinCall: Self = "join-call"
     /// Ability to create a call.

Sources/StreamChatUI/Composer/ComposerVC.swift

@@ -617,7 +617,9 @@ open class ComposerVC: _ViewController,
         } else {
             createNewMessage(text: text)
 
-            if !content.hasCommand, let cooldownDuration = channelController?.channel?.cooldownDuration {
+            let channel = channelController?.channel
+            let skipSlowMode = channel?.ownCapabilities.contains(.skipSlowMode) == true
+            if !content.hasCommand, !skipSlowMode, let cooldownDuration = channel?.cooldownDuration {
                 cooldownTracker.start(with: cooldownDuration)
             }
 

TestTools/StreamChatTestTools/Mocks/Models + Extensions/ChatChannel_Mock.swift

@@ -84,6 +84,7 @@ public extension ChatChannel {
         watcherCount: Int = 0,
         memberCount: Int = 0,
         reads: [ChatChannelRead] = [],
+        cooldownDuration: Int = 0,
         extraData: [String: RawJSON] = [:],
         latestMessages: [ChatMessage] = [],
         muteDetails: MuteDetails? = nil,
@@ -110,6 +111,7 @@ public extension ChatChannel {
             watcherCount: watcherCount,
             memberCount: memberCount,
             reads: reads,
+            cooldownDuration: cooldownDuration,
             extraData: extraData,
             latestMessages: { latestMessages },
             muteDetails: { muteDetails },

Tests/StreamChatUITests/SnapshotTests/Composer/ComposerVC_Tests.swift

@@ -302,6 +302,18 @@ final class ComposerVC_Tests: XCTestCase {
         AssertSnapshot(composerVC)
     }
 
+    func test_channelWithSlowModeActive_messageIsSent_SkipSlowModeIsOnWithCountdownShown() {
+        let channel = ChatChannel.mock(cid: .unique, ownCapabilities: [.skipSlowMode, .sendMessage], cooldownDuration: 10)
+        mockedChatChannelController.channel_mock = channel
+        composerVC.channelController = mockedChatChannelController
+        composerVC.appearance = Appearance.default
+        composerVC.publishMessage(sender: UIButton())
+        composerVC.content.text = "Test text"
+        composerVC.composerView.inputMessageView.textView.placeholderLabel.isHidden = true
+
+        AssertSnapshot(composerVC, variants: [.defaultLight])
+    }
+
     func test_didUpdateMessages_startsCooldown() {
         let mockedCooldownTracker = CooldownTracker_Mock(timer: ScheduledStreamTimer_Mock())
         composerVC.cooldownTracker = mockedCooldownTracker