//
//  MCNavBarSegmentValue1View.swift
//  HCQuanfangtong
//
//  Created by Apple on 2022/9/22.
//  Copyright © 2022 Jyp. All rights reserved.
//

import UIKit
import RxSwift
import RxCocoa
/// <#Description#>
class MCNavBarSegmentValue1View: MCNavBarView {

    init(dataSource: [String], style: MCNavBarStyle? = nil, tap: ((Int)->Void)?, defaultSelectedIndex: Int = 0){
        super.init(title: nil, subTitle: nil, style: style)
        self.contentView.addArrangedSubview(self.stackView)
        self.stackView.mas_makeConstraints { make in
            make?.height.offset()(KNavBarHeight)
        }
        
        for i in 0..<dataSource.count{
            let segmentView = NavSegmentView.init(name: dataSource[i], style: self.navStyle)
            segmentView.tap = {[unowned self] in
                segmentView.scaleText()
                _ = self.stackView.arrangedSubviews.filter { e in
                    e != segmentView
                }.map { e in
                    (e as! NavSegmentView).identifyText()
                }
                tap?(i)
            }
            self.stackView.addArrangedSubview(segmentView)
            segmentView.mas_makeConstraints { make in
                make?.height.offset()(KNavBarHeight)
            }
        }
        if self.stackView.arrangedSubviews.canGet(at: defaultSelectedIndex).0{
            (self.stackView.arrangedSubviews[defaultSelectedIndex] as! NavSegmentView).scaleText()
            _ = self.stackView.arrangedSubviews.filter { e in
                e != self.stackView.arrangedSubviews[defaultSelectedIndex]
            }.map { e in
                (e as! NavSegmentView).identifyText()
            }
        }
        self.resetConstraint()
    }

    //MARK: - Private Property
    private lazy var stackView: UIStackView! = {
        let stackView = UIStackView.init(frame: CGRect.zero)
        stackView.alignment = .center
        stackView.axis = .horizontal
        stackView.distribution = .fillEqually
        return stackView
    }()
    
    
    //MARK: - Override MCNavBarDelegate
    override var type: MCNavBarType{
        .segment
    }
    
    override func setNavTitle(_ title: String?) {
        if let index = Convert.toInt(title) {
            if self.stackView.arrangedSubviews.canGet(at: index).0{
                (self.stackView.arrangedSubviews[index] as! NavSegmentView).scaleText()
            }
        }
    }
    override func setNavSubTitle(_ title: String?) {
        return
    }
        
    //MARK: -
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    

    
}


fileprivate class NavSegmentView: UIView{
    
    /// 点击事件
    var tap: (()->Void)?{
        didSet{
            self.addTapAction {[unowned self]  _ in
                if self.isSelected{
                    return
                }
                self.isSelected = true
                self.tap?()
            }
        }
    }
    
    init(name: String, style: MCNavBarStyle){
        super.init(frame: CGRect.zero)
        self.style = style
        self.textLabel = UILabel.init(frame: CGRect.zero)
        self.textLabel.text = name
        self.textLabel.textAlignment = .center
        self.textLabel.textColor = style.styleForSubTitleColor
        self.textLabel.font = style.styleForTitleFont
        self.addSubview(self.textLabel)
        self.textLabel.mas_makeConstraints { make in
            make?.center.mas_equalTo()(self)
        }
    }
    
    
    
    /// 放大text
    func scaleText(){
        if !self.isSelected{
            self.isSelected = true
        }
        self.textLabel.transform = CGAffineTransform.identity
        self.textLabel.textColor = style.styleForTitleColor
        self.textLabel.font = style.styleForTitleFont
        self.textLabel.transform = CGAffineTransform.init(scaleX: self.style.styleForScaling, y: self.style.styleForScaling)
    }
    
    /// 还原text
    func identifyText(){
        if self.isSelected{
            self.isSelected = false
        }
        self.textLabel.transform = CGAffineTransform.identity
        self.textLabel.textColor = style.styleForScalingBeforeTitleColor
    }
    
    //MARK: - Private Property
    
    /// 内容
    private var textLabel: UILabel!
    private var style: MCNavBarStyle!
    private var isSelected: Bool = false
    
    //MARK: -
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    
}