macos-shell-notification-center.swift

//
//  main.swift
//  Shell Notification Center
//
//  Created by Keng Lee on 2021/1/15.
//
import Foundation
import Combine

var bag = Set<AnyCancellable>()
let dnc = DistributedNotificationCenter.default()

func shell(_ n: Notification) {
    let task = Process()
    task.launchPath = "/bin/zsh"
    task.arguments = ["/Users/keng42/.shnc/main.sh", n.name.rawValue]
    task.launch()
}

let events = [
    "com.apple.screenIsLocked",
    "com.apple.screenIsUnlocked",
    "com.apple.screensaver.didstart",
    "com.apple.screensaver.willstop",
    "com.apple.screensaver.didstop",
]

events.forEach { ev in
    dnc.publisher(for: Notification.Name(rawValue: ev))
        .sink(receiveValue: shell)
        .store(in: &bag)
}

print("Shell Notification Center Started")

// keepalive
dispatchMain()