VPN v2

main/Extensions/AlertSheet.swift

@@ -0,0 +1,57 @@
+import UIKit
+
+// MARK: Basic Alerts
+
+func Alert(title: String?, text: String?, buttonText: String = "Dismiss") -> UIAlertController {
+	let alert = UIAlertController(title: title, message: text, preferredStyle: .alert)
+	alert.addAction(UIAlertAction(title: buttonText, style: .cancel, handler: nil))
+	return alert
+}
+
+func ErrorAlert(_ error: Error, buttonText: String = "Dismiss") -> UIAlertController {
+	return Alert(title: "Error", text: error.localizedDescription, buttonText: buttonText)
+}
+
+func AskAlert(title: String?, text: String?, buttonText: String = "Continue", buttonStyle: UIAlertAction.Style = .default, action: @escaping () -> Void) -> UIAlertController {
+	let alert = Alert(title: title, text: text, buttonText: "Cancel")
+	alert.addAction(UIAlertAction(title: buttonText, style: buttonStyle) { _ in action() })
+	return alert
+}
+
+extension UIAlertController {
+	func presentIn(_ viewController: UIViewController?) {
+		viewController?.present(self, animated: true, completion: nil)
+	}
+}
+
+// MARK: Alert with multiple options
+
+func AlertWithOptions(title: String?, text: String?, buttons: [String], lastIsDestructive: Bool = false, callback: @escaping (_ index: Int?) -> Void) -> UIAlertController {
+	let alert = UIAlertController(title: title, message: text, preferredStyle: .actionSheet)
+	for (i, btn) in buttons.enumerated() {
+		let dangerous = (lastIsDestructive && i + 1 == buttons.count)
+		alert.addAction(UIAlertAction(title: btn, style: dangerous ? .destructive : .default) { _ in callback(i) })
+	}
+	alert.addAction(UIAlertAction(title: "Cancel", style: .cancel) { _ in callback(nil) })
+	return alert
+}
+
+func AlertDeleteLogs(_ domain: String, latest: Timestamp, success: @escaping (_ tsMin: Timestamp) -> Void) -> UIAlertController {
+	let sinceNow = TimestampNow() - latest
+	var buttons = ["Last 5 minutes", "Last 15 minutes", "Last hour", "Last 24 hours", "Delete everything"]
+	var times: [Timestamp] = [300, 900, 3600, 86400]
+	while times.count > 0, times[0] < sinceNow {
+		buttons.removeFirst()
+		times.removeFirst()
+	}
+	return AlertWithOptions(title: "Delete logs", text: "Delete logs for domain '\(domain)'", buttons: buttons, lastIsDestructive: true) {
+		guard let idx = $0 else {
+			return
+		}
+		if idx >= times.count {
+			success(0)
+		} else {
+			success(Timestamp(Date().timeIntervalSince1970) - times[idx])
+		}
+	}
+}