30 lines
1.1 KiB
Swift
30 lines
1.1 KiB
Swift
import Foundation
|
|
|
|
/// Compact human formatting for counters surfaced in the UI.
|
|
enum Format {
|
|
/// Bit-rate, e.g. 224229 → "224 kbps", 7216819 → "7.2 Mbps".
|
|
static func bps(_ value: Double?) -> String {
|
|
guard let value, value >= 0 else { return "—" }
|
|
let units = ["bps", "kbps", "Mbps", "Gbps", "Tbps"]
|
|
var x = value, i = 0
|
|
while x >= 1000 && i < units.count - 1 { x /= 1000; i += 1 }
|
|
let digits = (i == 0 || x >= 100) ? "%.0f" : "%.1f"
|
|
return "\(String(format: digits, x)) \(units[i])"
|
|
}
|
|
|
|
/// Byte count, e.g. 7401438 → "7.1 MB".
|
|
static func bytes(_ value: Double?) -> String {
|
|
guard let value, value >= 0 else { return "—" }
|
|
let units = ["B", "KB", "MB", "GB", "TB", "PB"]
|
|
var x = value, i = 0
|
|
while x >= 1024 && i < units.count - 1 { x /= 1024; i += 1 }
|
|
let digits = (i == 0 || x >= 100) ? "%.0f" : "%.1f"
|
|
return "\(String(format: digits, x)) \(units[i])"
|
|
}
|
|
|
|
/// Integer percent, e.g. 13 → "13%".
|
|
static func percent(_ value: Int?) -> String {
|
|
guard let value else { return "—" }
|
|
return "\(value)%"
|
|
}
|
|
}
|