Add iOS media placeholders

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSCore/Models.swift

@@ -91,12 +91,67 @@ public struct Reaction: Equatable, Sendable {
     }
 }
 
+public enum MediaDownloadState: Equatable, Sendable {
+    case notDownloaded
+    case downloading
+    case downloaded(path: String)
+    case error(String)
+}
+
+public struct PhotoMedia: Equatable, Sendable {
+    public var fileId: Int32
+    public var width: Int32
+    public var height: Int32
+    public var downloadState: MediaDownloadState
+
+    public init(
+        fileId: Int32,
+        width: Int32,
+        height: Int32,
+        downloadState: MediaDownloadState = .notDownloaded
+    ) {
+        self.fileId = fileId
+        self.width = width
+        self.height = height
+        self.downloadState = downloadState
+    }
+}
+
+public struct VoiceMedia: Equatable, Sendable {
+    public var fileId: Int32
+    public var duration: Int32
+    public var mimeType: String?
+    public var waveform: String?
+    public var downloadState: MediaDownloadState
+
+    public init(
+        fileId: Int32,
+        duration: Int32,
+        mimeType: String? = nil,
+        waveform: String? = nil,
+        downloadState: MediaDownloadState = .notDownloaded
+    ) {
+        self.fileId = fileId
+        self.duration = duration
+        self.mimeType = mimeType
+        self.waveform = waveform
+        self.downloadState = downloadState
+    }
+}
+
+public enum MessageMedia: Equatable, Sendable {
+    case photo(PhotoMedia)
+    case voice(VoiceMedia)
+}
+
 public struct Message: Identifiable, Equatable, Sendable {
     public var id: Int64
     public var chatId: Int64
     public var senderName: String
     public var text: String
     public var date: Int32
+    public var mediaAlbumId: Int64?
+    public var media: MessageMedia?
     public var isOutgoing: Bool
     public var isRead: Bool
     public var editDate: Int32?
@@ -110,6 +165,8 @@ public struct Message: Identifiable, Equatable, Sendable {
         senderName: String,
         text: String,
         date: Int32 = 0,
+        mediaAlbumId: Int64? = nil,
+        media: MessageMedia? = nil,
         isOutgoing: Bool,
         isRead: Bool = true,
         editDate: Int32? = nil,
@@ -122,6 +179,8 @@ public struct Message: Identifiable, Equatable, Sendable {
         self.senderName = senderName
         self.text = text
         self.date = date
+        self.mediaAlbumId = mediaAlbumId
+        self.media = media
         self.isOutgoing = isOutgoing
         self.isRead = isRead
         self.editDate = editDate