//
//  RaitingControl.swift
//  FoodManagerment
//
//  Created by CNTT on 4/27/21.
//  Copyright © 2021 Nam Ngọc. All rights reserved.
//

import UIKit

@IBDesignable class RaitingControl: UIStackView {

    //mark
    private var raitingButton = [UIButton]()
    @IBInspectable var starNumber:Int = 5 {
        didSet{
            raitingButtonSetting()
        }
    }
    @IBInspectable var starSize:CGSize = CGSize(width: 44.0, height: 44.0){
        didSet{
            raitingButtonSetting()
        }
    }
 
    //contructor
    override init(frame: CGRect) {
        super.init(frame: frame)
        raitingButtonSetting()
    }
    
    required init(coder: NSCoder) {
        super.init(coder: coder)
        raitingButtonSetting()
    }
    //Initialization of rating control
    func raitingButtonSetting()  {
        //load the rating images
        let bundle=Bundle(for: type(of: self))
        let nomal=UIImage(named: "Nomal",in:bundle,compatibleWith: .none)
        let selected=UIImage(named: "Selected",in:bundle,compatibleWith: .none)
        let pressed=UIImage(named: "Pressed",in:bundle,compatibleWith: .none)
        
        //clear the old button
        for button in raitingButton{
            removeArrangedSubview(button)
            button.removeFromSuperview()
        }
        raitingButton.removeAll()
     
        for _ in 0..<starNumber{
            //create raitting button
            let button = UIButton()
            //set color
            //button.backgroundColor = UIColor.red
            //set image
            button.setImage(nomal, for: .normal)
            button.setImage(pressed, for: .highlighted)
            button.setImage(selected, for: .selected)
           
            //set width, height attributes
            button.heightAnchor.constraint(equalToConstant: starSize.height).isActive=true
            button.widthAnchor.constraint(equalToConstant: starSize.width).isActive=true
            //set event cactking for the button (bat su kien)
            button.addTarget(self, action: #selector(raitingButtonPress(button:)), for: .touchUpInside)
            //add to button in stackview
            addArrangedSubview(button)
            //add to the raitingbutton in array
            //c1
            raitingButton+=[button]
            //c2
            //raitingButton.append(button)
            //raitingButton.append(button)
        }
    }
    @objc private func raitingButtonPress(button: UIButton){
        //print("Press")
        if let index=raitingButton.firstIndex(of: button){
            print("Chi so cua button la: \(index + 1)")
        }
    }
}