//
//  Copyright (c) 2017 Touch Instinct
//
//  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 QuartzCore

extension CABasicAnimation {

    static let rotationKeyPath = "transform.rotation.z"

    static func zRotationAnimationWith(duration: CFTimeInterval = 1,
                                       repeatCount: Float = .infinity,
                                       clockwise: Bool = true) -> CABasicAnimation {

        let animation = CABasicAnimation(keyPath: CABasicAnimation.rotationKeyPath)
        let direction = clockwise ? 1.0 : -1.0
        animation.toValue = NSNumber(value: .pi * 2 * direction)
        animation.duration = duration
        animation.isCumulative = true
        animation.repeatCount = repeatCount
        if repeatCount == .infinity {
            animation.isRemovedOnCompletion = false
        }

        return animation
    }
}