Video improvements

submodules/TelegramUI/Sources/Chat/ChatControllerOpenTimecodeContextMenu.swift

@@ -51,7 +51,33 @@ extension ChatControllerImpl {
                     return
                 }
                 
-                UIPasteboard.general.string = timecode
+                if message.id.namespace == Namespaces.Message.Cloud, let channel = message.peers[message.id.peerId] as? TelegramChannel, let addressName = channel.addressName {
+                    var timestampSuffix = ""
+                    let startAtTimestamp = parseTimeString(timecode)
+                    
+                    var startAtTimestampString = ""
+                    let hours = startAtTimestamp / 3600
+                    let minutes = startAtTimestamp / 60 % 60
+                    let seconds = startAtTimestamp % 60
+                    if hours == 0 && minutes == 0 {
+                        startAtTimestampString = "\(startAtTimestamp)"
+                    } else {
+                        if hours != 0 {
+                            startAtTimestampString += "\(hours)h"
+                        }
+                        if minutes != 0 {
+                            startAtTimestampString += "\(minutes)m"
+                        }
+                        if seconds != 0 {
+                            startAtTimestampString += "\(seconds)s"
+                        }
+                    }
+                    timestampSuffix = "?t=\(startAtTimestampString)"
+                    let inputCopyText = "https://t.me/\(addressName)/\(message.id.id)\(timestampSuffix)"
+                    UIPasteboard.general.string = inputCopyText
+                } else {
+                    UIPasteboard.general.string = timecode
+                }
 
                 self.present(UndoOverlayController(presentationData: self.presentationData, content: .copy(text: presentationData.strings.Conversation_TextCopied), elevatedLayout: false, animateInAsReplacement: false, action: { _ in return false }), in: .current)
             }))
@@ -67,3 +93,30 @@ extension ChatControllerImpl {
         self.window?.presentInGlobalOverlay(controller)
     }
 }
+
+private func parseTimeString(_ timeString: String) -> Int {
+    let parts = timeString.split(separator: ":").map(String.init)
+    
+    switch parts.count {
+    case 1:
+        // Single component (e.g. "1", "10") => seconds
+        return Int(parts[0]) ?? 0
+        
+    case 2:
+        // Two components (e.g. "1:01", "10:30") => minutes:seconds
+        let minutes = Int(parts[0]) ?? 0
+        let seconds = Int(parts[1]) ?? 0
+        return minutes * 60 + seconds
+        
+    case 3:
+        // Three components (e.g. "1:01:01", "10:00:00") => hours:minutes:seconds
+        let hours = Int(parts[0]) ?? 0
+        let minutes = Int(parts[1]) ?? 0
+        let seconds = Int(parts[2]) ?? 0
+        return hours * 3600 + minutes * 60 + seconds
+        
+    default:
+        // Fallback to 0 or handle invalid format
+        return 0
+    }
+}