//
//  CommonViewRadioGroup.swift
//  Wallet
//
//  Created by Igor on 27.02.2021.
//  Copyright © 2021 AM. All rights reserved.
//

import UIKit

class CommonViewRadioGroup: CommonControlCustom {
    
    @IBOutlet private weak var stackView: UIStackView!
    @IBInspectable var titleStyle: String = "regular_14"
    
    @IBInspectable var isHorizontal: Bool = false {
        didSet { reload() }
    }
    
    var collection = [String]() {
        didSet { reload() }
    }
    
    var selectedIndex = 0 {
        didSet { update() }
    }
    
    override func setup() {
        super.setup()
        backgroundColor = .clear
    }
    
    private func reload() {
        stackView.arrangedSubviews.forEach({ $0.removeFromSuperview() })
        stackView.axis = isHorizontal ? .horizontal : .vertical
        stackView.spacing = isHorizontal ? 22 : 12
        collection.enumerated().forEach({
            let btn = UIButton()
            btn.tag = $0.offset
            btn.contentHorizontalAlignment = .left
            btn.contentEdgeInsets = .init(top: 0, left: 0, bottom: 0, right: 10)
            btn.titleEdgeInsets = .init(top: 0, left: 5, bottom: 0, right: 0)
            btn.imageEdgeInsets = .init(top: 0, left: 0, bottom: 0, right: 5)
            btn.setAttributedTitle(($0.element + "  ").attributed(named: titleStyle, color: Asset.textGranite.color), for: .normal)
            btn.setAttributedTitle(($0.element + "  ").attributed(named: titleStyle, color: Asset.textDeepWater.color), for: .highlighted)
            btn.setAttributedTitle(($0.element + "  ").attributed(named: titleStyle, color: Asset.textDeepWater.color), for: .selected)
            btn.setImage(Asset.commonRadioNormal.image, for: .normal)
            btn.setImage(Asset.commonRadioSelected.image, for: .selected)
            btn.addTarget(self, action: #selector(onAction(_:)), for: .touchUpInside)
            stackView.addArrangedSubview(btn)
        })
        (superview ?? self).layoutIfNeeded()
        update()
    }
    
    private func update() {
        stackView.arrangedSubviews.compactMap({ $0 as? UIButton }).enumerated().forEach({ $0.element.isSelected = $0.offset == selectedIndex })
    }
    
    @objc private func onAction(_ btn: UIButton) {
        selectedIndex = btn.tag
        sendActions(for: .valueChanged)
    }
    
}