getting things in place to get average color of an image

nirvana-ios/Globals/RemoteImage.swift

@@ -59,12 +59,16 @@ struct RemoteImage: View {
             return failure
         default:
             if let image = UIImage(data: loader.data) {
+                let averageColor = image.averageColor
+                print("the average color is \(averageColor?.description)")
+                
                 return Image(uiImage: image)
             } else {
                 return failure
             }
         }
     }
+    
 }
 
 struct RemoteImage_Previews: PreviewProvider {

nirvana-ios/Globals/UIImage+Extension.swift

@@ -0,0 +1,25 @@
+//
+//  UIImage+Extension.swift
+//  nirvana-ios
+//
+//  Created by Arjun Patel on 12/14/21.
+//
+
+import Foundation
+import SwiftUI
+
+extension UIImage {
+    var averageColor: UIColor? {
+        guard let inputImage = CIImage(image: self) else { return nil }
+        let extentVector = CIVector(x: inputImage.extent.origin.x, y: inputImage.extent.origin.y, z: inputImage.extent.size.width, w: inputImage.extent.size.height)
+
+        guard let filter = CIFilter(name: "CIAreaAverage", parameters: [kCIInputImageKey: inputImage, kCIInputExtentKey: extentVector]) else { return nil }
+        guard let outputImage = filter.outputImage else { return nil }
+
+        var bitmap = [UInt8](repeating: 0, count: 4)
+        let context = CIContext(options: [.workingColorSpace: kCFNull])
+        context.render(outputImage, toBitmap: &bitmap, rowBytes: 4, bounds: CGRect(x: 0, y: 0, width: 1, height: 1), format: .RGBA8, colorSpace: nil)
+
+        return UIColor(red: CGFloat(bitmap[0]) / 255, green: CGFloat(bitmap[1]) / 255, blue: CGFloat(bitmap[2]) / 255, alpha: CGFloat(bitmap[3]) / 255)
+    }
+}