1 files changed, 71 insertions, 0 deletions
diff --git a/Hotline/Library/NetSocket/FileProgress.swift b/Hotline/Library/NetSocket/FileProgress.swift
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+++ b/Hotline/Library/NetSocket/FileProgress.swift
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+// NetSocket FileProgress
+// Dustin Mierau • @mierau
+// MIT License
+
+import Foundation
+
+public extension NetSocket {
+  
+  /// Progress information for file uploads/downloads
+  struct FileProgress: Sendable {
+    /// Number of bytes sent/received so far
+    public let sent: Int
+    /// Total file size (may be nil if unknown)
+    public let total: Int?
+    /// Size of most recent packet
+    public let now: Int
+    /// Total progress so far (0.0 to 1.0)
+    public let progress: Double
+    /// Smoothed transfer rate in bytes per second (EMA), if enough samples collected
+    public let bytesPerSecond: Double?
+    /// Estimated time remaining (seconds) based on smoothed rate, if available
+    public let estimatedTimeRemaining: TimeInterval?
+    
+    public init(sent: Int, total: Int?, now: Int = 0, bytesPerSecond: Double? = nil, estimatedTimeRemaining: TimeInterval? = nil) {
+      self.sent = sent
+      self.total = total
+      self.now = now
+      
+      if let t = total {
+        self.progress = max(0.0, min(1.0, Double(sent) / Double(t)))
+      }
+      else {
+        self.progress = 0.0
+      }
+      
+      self.bytesPerSecond = bytesPerSecond
+      self.estimatedTimeRemaining = estimatedTimeRemaining
+    }
+    
+    /// Format transfer speed in human-readable format
+    ///
+    /// Automatically selects appropriate unit (B/sec, KB/sec, MB/sec, GB/sec)
+    /// based on the magnitude of the speed.
+    ///
+    /// - Returns: Formatted string like "45KB/sec", "5B/sec", "12.5MB/sec", or nil if speed unavailable
+    ///
+    /// Example:
+    /// ```swift
+    /// if let speedString = progress.formattedSpeed {
+    ///   print(speedString)  // "2.5MB/sec"
+    /// }
+    /// ```
+    public var formattedSpeed: String? {
+      guard let bytesPerSecond = bytesPerSecond, bytesPerSecond > 0 else { return nil }
+      
+      let kb = 1024.0
+      let mb = kb * 1024.0
+      let gb = mb * 1024.0
+      
+      if bytesPerSecond >= gb {
+        return String(format: "%.1fGB/sec", bytesPerSecond / gb)
+      } else if bytesPerSecond >= mb {
+        return String(format: "%.1fMB/sec", bytesPerSecond / mb)
+      } else if bytesPerSecond >= kb {
+        return String(format: "%.0fKB/sec", bytesPerSecond / kb)
+      } else {
+        return String(format: "%.0fB/sec", bytesPerSecond)
+      }
+    }
+  }
+}