import SwiftUI


// MARK: - SwiftUI 背景重绘（方形版本）
struct CardBlindBackground: View {
    var body: some View {
        GeometryReader { geo in
            let w = geo.size.width
            let h = geo.size.height
            ZStack {
                // 主背景卡片（方形）
                ScoopRoundedRect(cornerRadius: 20, scoopDepth: 20, scoopHalfWidth: 90, scoopCenterX: 0.5, convexDown: true, flatHalfWidth: 60)
                    .fill(Theme.Colors.primary)
                    .shadow(color: .black.opacity(0.08), radius: 12, y: 6)
                    .padding()

                Rectangle()
                    .fill(
                        LinearGradient(
                            colors: [Color(hex: "FFFFFF"), Color(hex: "FFEFB2")],
                            startPoint: .topTrailing,
                            endPoint: .bottomLeading
                        )
                    )
                    .frame(width: w - 100 , height: h - 130)
                    .cornerRadius(20)
                    .padding(.top, Theme.Spacing.lg)
                // var view = UIView()
                // view.frame = CGRect(x: 0, y: 0, width: 320, height: 464)
                // let layer0 = CAGradientLayer()
                // layer0.colors = [
                // UIColor(red: 1, green: 1, blue: 1, alpha: 1).cgColor,
                // UIColor(red: 1, green: 0.937, blue: 0.698, alpha: 1).cgColor
                // ]
                // layer0.locations = [0, 1]
                // layer0.startPoint = CGPoint(x: 0.25, y: 0.5)
                // layer0.endPoint = CGPoint(x: 0.75, y: 0.5)
                // layer0.transform = CATransform3DMakeAffineTransform(CGAffineTransform(a: -1.13, b: 1.07, c: -1.08, d: -0.54, tx: 1.65, ty: 0.24))
                // layer0.bounds = view.bounds.insetBy(dx: -0.5*view.bounds.size.width, dy: -0.5*view.bounds.size.height)
                // layer0.position = view.center
                // view.layer.addSublayer(layer0)

                // view.layer.cornerRadius = 18

                // 左上光斑
                // Circle()
                //     .fill(Color.themePrimary.opacity(0.18)) 
                //     .blur(radius: 40)
                //     .frame(width: min(w, h) * 0.35, height: min(w, h) * 0.35)
                //     .position(x: w * 0.25, y: h * 0.25)

                // 右下光斑
                // Circle()
                //     .fill(Color.orange.opacity(0.14))
                //     .blur(radius: 50)
                //     .frame(width: min(w, h) * 0.40, height: min(w, h) * 0.40)
                //     .position(x: w * 0.75, y: h * 0.75)

                // 中央高光描边
                // RoundedRectangle(cornerRadius: 28)
                //     .stroke(Color.white.opacity(0.35), lineWidth: 1)
                //     .frame(width: w * 0.88, height: h * 0.88)
                //     .position(x: w / 2, y: h / 2)
                //     .blendMode(.overlay)
                //     .opacity(0.7)
            }
        }
    }
}

// 预览
struct CardBlindBackground_Previews: PreviewProvider {
    static var previews: some View {
        CardBlindBackground()
            .frame(width: 400, height: 600)
    }
}