Seek settings

Shared/Constants.swift

@@ -1,3 +1,4 @@
+import Defaults
 import Foundation
 import SwiftUI
 
@@ -51,4 +52,25 @@ struct Constants {
             return "list.and.film"
         }
     }
+
+    static func seekIcon(_ type: String, _ interval: TimeInterval) -> String {
+        let interval = Int(interval)
+        let allVersions = [10, 15, 30, 45, 60, 75, 90]
+        let iOS15 = [5]
+        let iconName = "go\(type).\(interval)"
+
+        if #available(iOS 15, macOS 12, *) {
+            if iOS15.contains(interval) {
+                return iconName
+            }
+        }
+
+        if allVersions.contains(interval) {
+            return iconName
+        }
+
+        let sign = type == "forward" ? "plus" : "minus"
+
+        return "go\(type).\(sign)"
+    }
 }