let data = CSPieChartData(title: "test", value: 70)

public protocol CSPieChartDataSource {
    //  This is data for component
    func numberOfComponentData() -> Int
    func pieChartComponentData(at indexPath: IndexPath) -> CSPieChartData
    
    //  This is colors that is component
    func numberOfComponentColors() -> Int
    func pieChartComponentColor(at indexPath: IndexPath) -> UIColor
    
    //  If you implement this, you can show subView. example) 'UIImageView' or 'UILable'
    //  Caution!! You must designate view frame.
    func numberOfComponentSubViews() -> Int
    func pieChartComponentSubView(at indexPath: IndexPath) -> UIView
    
    //  If you are implement this, you apply color to line path
    //  Otherwish line color is applied default 'black'
    func numberOfLineColors() -> Int
    func pieChartLineColor(at indexPath: IndexPath) -> UIColor
}

public protocol CSPieChartDelegate {
    func didSelectedPieChartComponent(at indexPath: IndexPath)
}

public class CSPieChartViewController: UIViewController {
    
    public var dataSource: CSPieChartDataSource?
    public var delegate: CSPieChartDelegate?
    
    //  Pie chart radius rate that is percentage of frames in the superview
    public var pieChartRadiusRate: CGFloat = 0.7
    
    // Pie chart line length between component and subview
    public var pieChartLineLength: CGFloat = 10
    
    // If this is true, component is animated when it is selected
    public var isSelectedAnimation: Bool = false
}