//
//  AddressSheetView.swift
//  stripe-react-native
//
//  Created by Charles Cruzan on 10/11/22.
//

import Foundation
import StripePaymentSheet

@objc(AddressSheetView)
public class AddressSheetView: UIView {
    @objc public var visible = false
    @objc public var presentationStyle: String = "popover"
    @objc public var animationStyle: String = ""
    @objc public var appearance: NSDictionary?
    @objc public var defaultValues: NSDictionary?
    @objc public var additionalFields: NSDictionary?
    @objc public var allowedCountries: [String] = []
    @objc public var autocompleteCountries: [String] = []
    @objc public var primaryButtonTitle: String?
    @objc public var sheetTitle: String?
    @objc public var onSubmitAction: RCTDirectEventBlock?
    @objc public var onErrorAction: RCTDirectEventBlock?

    private var wasVisible = false
    private var addressViewController: AddressViewController?
    internal var addressDetails: AddressViewController.AddressDetails?

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

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

    @objc public func didSetProps() {
        if visible && !wasVisible {
            presentAddressSheet()
            wasVisible = true
        } else if !visible && wasVisible {
            addressViewController?.dismiss(animated: true)
            wasVisible = false
        }
    }

    override public func didSetProps(_ changedProps: [String]!) {
        // This is only called on old arch, for new arch didSetProps() will be called
        // by the view component.
        self.didSetProps()
    }

    private func presentAddressSheet() {
        if STPAPIClient.shared.publishableKey == nil {
            onErrorAction!(
                Errors.createError(ErrorType.Failed, "No publishable key set. Stripe has not been initialized. Initialize Stripe in your app with the StripeProvider component or the initStripe method.") as? [AnyHashable: Any]
            )
            return
        }
        var config: AddressViewController.Configuration
        do {
            config = try AddressSheetUtils.buildConfiguration(
                appearance: appearance,
                defaultValues: defaultValues,
                additionalFields: additionalFields,
                allowedCountries: allowedCountries,
                autocompleteCountries: autocompleteCountries,
                buttonTitle: primaryButtonTitle,
                sheetTitle: sheetTitle
            )
        } catch {
            onErrorAction!(
                Errors.createError(ErrorType.Failed, error.localizedDescription) as? [AnyHashable: Any]
            )
            return
        }

        self.addressViewController = AddressViewController(
            configuration: config,
            delegate: self
        )

        let navigationController = UINavigationController(rootViewController: addressViewController!)
        navigationController.modalPresentationStyle = getModalPresentationStyle()
        navigationController.modalTransitionStyle = getModalTransitionStyle()
        let vc = findViewControllerPresenter(from: RCTKeyWindow()?.rootViewController ?? UIViewController())
        vc.present(navigationController, animated: true)
    }

    private func getModalPresentationStyle() -> UIModalPresentationStyle {
        switch presentationStyle {
        case "fullscreen":
            return .fullScreen
        case "pageSheet":
            return .pageSheet
        case "formSheet":
            return .formSheet
        case "automatic":
            return .automatic
        case "overFullScreen":
            return .overFullScreen
        case "popover":
            fallthrough
        default:
            return .popover
        }
    }

    private func getModalTransitionStyle() -> UIModalTransitionStyle {
        switch animationStyle {
        case "flip":
            return .flipHorizontal
        case "curl":
            return .partialCurl
        case "dissolve":
            return .crossDissolve
        case "slide":
            fallthrough
        default:
            return .coverVertical
        }
    }
}

extension AddressSheetView: AddressViewControllerDelegate {
    public func addressViewControllerDidFinish(_ addressViewController: AddressViewController, with address: AddressViewController.AddressDetails?) {
        guard let address = address else {
            onErrorAction!(
                Errors.createError(
                    ErrorType.Canceled,
                    "The flow has been canceled."
                ) as? [AnyHashable: Any]
            )
            return
        }
        self.addressDetails = address
        onSubmitAction!(AddressSheetUtils.buildResult(address: address))
    }
}