MTMR/MTMR/Widgets/TimeTouchBarItem.swift

import Cocoa

class TimeTouchBarItem: CustomButtonTouchBarItem {
    private let dateFormatter = DateFormatter()
    private var timer: Timer!

    init(identifier: NSTouchBarItem.Identifier, formatTemplate: String, timeZone: String? = nil) {
        dateFormatter.dateFormat = formatTemplate
        if let abbr = timeZone {
            dateFormatter.timeZone = TimeZone(abbreviation: abbr)
        }
        super.init(identifier: identifier, title: " ")
        timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)
        isBordered = false
        updateTime()
    }

    required init?(coder _: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    @objc func updateTime() {
        title = dateFormatter.string(from: Date())
    }
}