import Foundation
import UIKit
import PassKit

@objc(ApplePayButtonView)
class ApplePayButtonView: UIView {
    var applePayButton: PKPaymentButton?

    @objc var onPressAction: RCTDirectEventBlock?

    @objc var type: NSNumber?
    @objc var buttonStyle: NSNumber?
    @objc var borderRadius: NSNumber?
    @objc var disabled = false

    @objc func handleApplePayButtonTapped() {
        if onPressAction != nil {
            onPressAction!(["true": true])
        }
    }

    override func didSetProps(_ changedProps: [String]!) {
        if let applePayButton = self.applePayButton {
            applePayButton.removeFromSuperview()
        }
        let paymentButtonType = PKPaymentButtonType(rawValue: self.type as? Int ?? 0) ?? .plain
        let paymentButtonStyle = PKPaymentButtonStyle(rawValue: self.buttonStyle as? Int ?? 2) ?? .black
        self.applePayButton = PKPaymentButton(paymentButtonType: paymentButtonType, paymentButtonStyle: paymentButtonStyle)
        if #available(iOS 12.0, *) {
            self.applePayButton?.cornerRadius = self.borderRadius as? CGFloat ?? 4.0
        }

        if let applePayButton = self.applePayButton {
            applePayButton.isEnabled = !disabled
            applePayButton.addTarget(self, action: #selector(handleApplePayButtonTapped), for: .touchUpInside)
            self.addSubview(applePayButton)
        }
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
    }

    override func layoutSubviews() {
        if let applePayButton = self.applePayButton {
            applePayButton.frame = self.bounds
        }
    }

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