//
//  Copyright (c) 2023 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 TIUIKitCore
import UIKit
import TISwiftUtils

public final class DefaultConfigurableStatefulButton: StatefulButton, ConfigurableView, AppearanceConfigurable {

    private var appearance: Appearance = .defaultAppearance

    // MARK: - ConfigurableView

    public func configure(with viewModel: ViewModel) {
        viewModel.willReuse(view: self)

        let previousTarget = target(forAction: #selector(ClosureTarget.onAction), withSender: nil)

        removeTarget(previousTarget,
                     action: #selector(ClosureTarget.onAction),
                     for: .touchUpInside)

        stateViewModelMap = viewModel.stateViewModelMap

        for (state, viewModel) in viewModel.stateViewModelMap {
            setTitle(viewModel.title, for: state.controlState)
            setImage(viewModel.image, for: state.controlState)
            setBackgroundImage(viewModel.backgroundImage, for: state.controlState)
        }

        apply(state: viewModel.currentState)

        configureStatefulButton(appearance: appearance)

        addTarget(viewModel.closureTarget,
                  action: #selector(ClosureTarget.onAction),
                  for: .touchUpInside)

        viewModel.didCompleteConfiguration(of: self)
    }

    // MARK: - AppearanceConfigurable

    public func configure(appearance: DefaultPositionAppearance) {
        self.appearance = appearance
        configureStatefulButton(appearance: appearance)
    }
}

public extension DefaultConfigurableStatefulButton {
    final class ViewModel: DefaultUIViewPresenter<DefaultConfigurableStatefulButton> {
        public var stateViewModelMap: [StateKey: BaseButtonViewModel]
        public var currentState: State {
            didSet {
                view?.apply(state: currentState)
            }
        }

        var closureTarget: ClosureTarget

        public var tapHandler: UIVoidClosure? {
            didSet {
                closureTarget.handler = tapHandler
            }
        }

        public init(stateViewModelMap: [StateKey: BaseButtonViewModel],
                    currentState: State,
                    tapHander: UIVoidClosure?) {

            self.stateViewModelMap = stateViewModelMap
            self.currentState = currentState
            self.tapHandler = tapHander
            self.closureTarget = ClosureTarget(handler: tapHander)
        }
    }
}