//

// SwiftyTimer

//

// Copyright (c) 2015 Radosław Pietruszewski

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in all

// copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

// SOFTWARE.

//

import Foundation

private class NSTimerActor {

let block: () -> Void

init(_ block: () -> Void) {

self.block = block

}

@objc func fire() {

block()

}

}

extension NSTimer {

// NOTE: `new` class functions are a workaround for a crashing bug when using convenience initializers (18720947)

/// Create a timer that will call `block` once after the specified time.

///

/// **Note:** the timer won't fire until it's scheduled on the run loop.

/// Use `NSTimer.after` to create and schedule a timer in one step.

public class func new(after interval: NSTimeInterval, _ block: () -> Void) -> NSTimer {

let actor = NSTimerActor(block)

return self.init(timeInterval: interval, target: actor, selector: "fire", userInfo: nil, repeats: false)

}

/// Create a timer that will call `block` repeatedly in specified time intervals.

///

/// **Note:** the timer won't fire until it's scheduled on the run loop.

/// Use `NSTimer.every` to create and schedule a timer in one step.

public class func new(every interval: NSTimeInterval, _ block: () -> Void) -> NSTimer {

let actor = NSTimerActor(block)

return self.init(timeInterval: interval, target: actor, selector: "fire", userInfo: nil, repeats: true)

}

/// Create and schedule a timer that will call `block` once after the specified time.

public class func after(interval: NSTimeInterval, _ block: () -> Void) -> NSTimer {

let timer = NSTimer.new(after: interval, block)

timer.start()

return timer

}

/// Create and schedule a timer that will call `block` repeatedly in specified time intervals.

public class func every(interval: NSTimeInterval, _ block: () -> Void) -> NSTimer {

let timer = NSTimer.new(every: interval, block)

timer.start()

return timer

}

/// Schedule this timer on the run loop

///

/// By default, the timer is scheduled on the current run loop for the default mode.

/// Specify `runLoop` or `modes` to override these defaults.

public func start(runLoop runLoop: NSRunLoop = NSRunLoop.currentRunLoop(), modes: String...) {

let modes = modes.isEmpty ? [NSDefaultRunLoopMode] : modes

for mode in modes {

runLoop.addTimer(self, forMode: mode)

}

}

}

extension Double {

public var ms: NSTimeInterval { return self / 1000 }

public var second: NSTimeInterval { return self }

public var seconds: NSTimeInterval { return self }

public var minute: NSTimeInterval { return self * 60 }

public var minutes: NSTimeInterval { return self * 60 }

public var hour: NSTimeInterval { return self * 3600 }

public var hours: NSTimeInterval { return self * 3600 }

}