refactor: Move date formatter to utils

Sources/Earthquake Network/Controllers/Seismic Networks/Cells/SeismicNetworkTableViewCell.swift

@@ -57,12 +57,6 @@ class SeismicNetworkTableViewCell: UITableViewCell {
     private static let DefaultBodyFont = UIFont.preferredFont(forTextStyle: .body)
     private static let DefaultBodyFontLight = UIFont.preferredFont(for: .body, weight: .light)
     
-    private static var dateFormatter: DateFormatter = {
-        let formatter = DateFormatter()
-        formatter.dateFormat = "HH:mm:ss d-MMM"
-        return formatter
-    }()
-    
     /// Seismic to show
     private var seismic: EQNSisma?
     private(set) var displayType = DisplayType.normal
@@ -442,7 +436,7 @@ class SeismicNetworkTableViewCell: UITableViewCell {
         
         // we need to check agains null values, because sometimes WS returns invalid dates
         if let date = seismic.date {
-            let formattedDate = Self.dateFormatter.string(from: date)
+            let formattedDate = EQNUtility.formattedDate(from: date)
             let time = EQNUtility.formattedString(forTimeDifference: Int(seismic.timeDifference))
             timeLabel.text = "🕗 \(formattedDate) - \(time)"
         } else {

Sources/Earthquake Network/Models/EQNUtility+Extensions.swift

@@ -11,6 +11,14 @@ import Foundation
 
 extension EQNUtility {
 
+    private static var dateFormatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "HH:mm:ss d-MMM"
+        return formatter
+    }()
+    
+    // MARK: - Public
+    
     /// Convert coordinates in degrees
     /// - Parameter coordinate: The latitude and longitude associated with a location
     /// - Returns: Formatted coordinates, like
@@ -49,4 +57,8 @@ extension EQNUtility {
         }
         return "\(minutes)m"
     }
+    
+    class func formattedDate(from date: Date) -> String {
+        Self.dateFormatter.string(from: date)
+    }
 }