[V5] Replace StreamCollection and LazyCachedMapCollection with Array (#3830)

Author: laevandus

DemoShare/DemoShareViewModel.swift

@@ -32,7 +32,7 @@ class DemoShareViewModel: ObservableObject, ChatChannelControllerDelegate {
         chatClient.currentUserId
     }
 
-    @Published var channels = LazyCachedMapCollection<ChatChannel>()
+    @Published var channels: [ChatChannel] = []
     @Published var text = ""
     @Published var images = [UIImage]()
     @Published var selectedChannel: ChatChannel?

Sources/StreamChat/Controllers/ChannelController/ChannelController+SwiftUI.swift

@@ -18,7 +18,7 @@ extension ChatChannelController {
         @Published public private(set) var channel: ChatChannel?
 
         /// The messages related to the channel.
-        @Published public private(set) var messages: LazyCachedMapCollection<ChatMessage> = []
+        @Published public private(set) var messages: [ChatMessage] = []
 
         /// The current state of the Controller.
         @Published public private(set) var state: DataController.State

Sources/StreamChat/Controllers/ChannelController/ChannelController.swift

@@ -55,7 +55,7 @@ public class ChatChannelController: DataController, DelegateCallable, DataStoreP
     /// To observe changes of the messages, set your class as a delegate of this controller or use the provided
     /// `Combine` publishers.
     ///
-    public var messages: LazyCachedMapCollection<ChatMessage> {
+    public var messages: [ChatMessage] {
         if state == .initialized {
             setLocalStateBasedOnError(startDatabaseObservers())
         }
@@ -1697,7 +1697,7 @@ public class ChatChannelController: DataController, DelegateCallable, DataStoreP
     public func getFirstUnreadMessageId(for channel: ChatChannel) -> MessageId? {
         UnreadMessageLookup.firstUnreadMessageId(
             in: channel,
-            messages: StreamCollection(messages),
+            messages: messages,
             hasLoadedAllPreviousMessages: hasLoadedAllPreviousMessages,
             currentUserId: client.currentUserId
         )

Sources/StreamChat/Controllers/ChannelListController/ChannelListController+SwiftUI.swift

@@ -15,7 +15,7 @@ extension ChatChannelListController {
         public let controller: ChatChannelListController
 
         /// The channels matching the query.
-        @Published public private(set) var channels: LazyCachedMapCollection<ChatChannel> = []
+        @Published public private(set) var channels: [ChatChannel] = []
 
         /// The current state of the Controller.
         @Published public private(set) var state: DataController.State

Sources/StreamChat/Controllers/ChannelListController/ChannelListController.swift

@@ -45,7 +45,7 @@ public class ChatChannelListController: DataController, DelegateCallable, DataSt
     /// To observe changes of the channels, set your class as a delegate of this controller or use the provided
     /// `Combine` publishers.
     ///
-    public var channels: LazyCachedMapCollection<ChatChannel> {
+    public var channels: [ChatChannel] {
         startChannelListObserverIfNeeded()
         return channelListObserver.items
     }

Sources/StreamChat/Controllers/ChannelWatcherListController/ChatChannelWatcherListController+SwiftUI.swift

@@ -16,7 +16,7 @@ extension ChatChannelWatcherListController {
         public let controller: ChatChannelWatcherListController
 
         /// The channel members.
-        @Published public private(set) var watchers: LazyCachedMapCollection<ChatUser> = []
+        @Published public private(set) var watchers: [ChatUser] = []
 
         /// The current state of the controller.
         @Published public private(set) var state: DataController.State

Sources/StreamChat/Controllers/ChannelWatcherListController/ChatChannelWatcherListController.swift

@@ -27,7 +27,7 @@ public class ChatChannelWatcherListController: DataController, DelegateCallable,
     /// The channel watchers matching the query.
     /// To observe the watcher list changes, set your class as a delegate of this controller or use the provided
     /// `Combine` publishers.
-    public var watchers: LazyCachedMapCollection<ChatUser> {
+    public var watchers: [ChatUser] {
         startObservingIfNeeded()
         return watchersObserver.items
     }

Sources/StreamChat/Controllers/DatabaseObserver/BackgroundListDatabaseObserver.swift

@@ -6,8 +6,8 @@ import CoreData
 import Foundation
 
 class BackgroundListDatabaseObserver<Item: Sendable, DTO: NSManagedObject>: BackgroundDatabaseObserver<Item, DTO>, @unchecked Sendable {
-    var items: LazyCachedMapCollection<Item> {
-        LazyCachedMapCollection(elements: rawItems)
+    var items: [Item] {
+        rawItems
     }
 
     init(

Sources/StreamChat/Controllers/MemberListController/MemberListController+SwiftUI.swift

@@ -16,7 +16,7 @@ extension ChatChannelMemberListController {
         public let controller: ChatChannelMemberListController
 
         /// The channel members.
-        @Published public private(set) var members: LazyCachedMapCollection<ChatChannelMember> = []
+        @Published public private(set) var members: [ChatChannelMember] = []
 
         /// The current state of the controller.
         @Published public private(set) var state: DataController.State

Sources/StreamChat/Controllers/MemberListController/MemberListController.swift

@@ -29,7 +29,7 @@ public class ChatChannelMemberListController: DataController, DelegateCallable,
     /// The channel members matching the query.
     /// To observe the member list changes, set your class as a delegate of this controller or use the provided
     /// `Combine` publishers.
-    public var members: LazyCachedMapCollection<ChatChannelMember> {
+    public var members: [ChatChannelMember] {
         startObservingIfNeeded()
         return memberListObserver.items
     }