import SwiftUI
import UIKit

// 1. 自定义UIKit滑块（支持调整高度）
class ThickSlider: UISlider {
    var trackHeight: CGFloat = 40 // 滑块轨道高度（可调整）
    
    override func trackRect(forBounds bounds: CGRect) -> CGRect {
        // 调整轨道框架，设置自定义高度
        let original = super.trackRect(forBounds: bounds)
        return CGRect(x: original.origin.x,
                      y: (bounds.height - trackHeight) / 2,
                      width: original.width,
                      height: trackHeight)
    }
}

// 2. SwiftUI包装器
struct CustomSlider: UIViewRepresentable {
    @Binding var value: Double
    var trackHeight: CGFloat
    var tintColor: Color
    
    func makeUIView(context: Context) -> ThickSlider {
        let slider = ThickSlider()
        slider.trackHeight = trackHeight
        slider.minimumValue = 0
        slider.maximumValue = 1
        slider.value = Float(value)
        slider.addTarget(context.coordinator, action: #selector(Coordinator.valueChanged(_:)), for: .valueChanged)
        slider.tintColor = UIColor(tintColor)
        return slider
    }
    
    func updateUIView(_ uiView: ThickSlider, context: Context) {
        uiView.value = Float(value)
        uiView.trackHeight = trackHeight
        uiView.tintColor = UIColor(tintColor)
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(value: $value)
    }
    
    class Coordinator: NSObject {
        @Binding var value: Double
        
        init(value: Binding<Double>) {
            _value = value
        }
        
        @objc func valueChanged(_ sender: UISlider) {
            value = Double(sender.value)
        }
    }
}