import Foundation
import UIKit

extension UIImage {
    func scaleAndCropImage(_ size: CGSize) async throws -> UIImage {
        try await Task {
            let aspect = self.size.width / self.size.height
            let targetAspect = size.width / size.height
            var newWidth: CGFloat
            var newHeight: CGFloat
            if aspect < targetAspect {
                newWidth = size.width
                newHeight = size.width / aspect
            } else {
                newHeight = size.height
                newWidth = size.height * aspect
            }

            UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
            self.draw(in: CGRect(x: (size.width - newWidth) / 2, y: (size.height - newHeight) / 2, width: newWidth, height: newHeight))
            let newImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()
            if let newImage = newImage {
                return newImage
            } else {
                throw NSError(domain: "UIImage", code: -900, userInfo: nil)
            }
        }.value
    }
}