init, finished

GIFCollector MessagesExtension/Services/GIFStorageService.swift

@@ -0,0 +1,49 @@
+import Foundation
+
+class GIFStorageService {
+    static let shared = GIFStorageService()
+    
+    private let userDefaults = UserDefaults(suiteName: "group.gifcollector")
+    private let savedGIFsKey = "savedGIFs"
+    
+    private init() {
+        // Make sure the shared UserDefaults exists
+        if userDefaults == nil {
+            print("Error: Could not create UserDefaults with app group")
+        }
+    }
+    
+    func saveGIF(_ gif: GIF) {
+        var savedGIFs = fetchGIFs()
+        
+        // Don't save duplicate URLs
+        if !savedGIFs.contains(where: { $0.urlString == gif.urlString }) {
+            savedGIFs.append(gif)
+            saveToUserDefaults(gifs: savedGIFs)
+        }
+    }
+    
+    func fetchGIFs() -> [GIF] {
+        guard let data = userDefaults?.data(forKey: savedGIFsKey),
+              let gifs = try? JSONDecoder().decode([GIF].self, from: data) else {
+            return []
+        }
+        
+        return gifs.sorted(by: { $0.createdAt > $1.createdAt })
+    }
+    
+    func deleteGIF(with id: UUID) {
+        var savedGIFs = fetchGIFs()
+        savedGIFs.removeAll(where: { $0.id == id })
+        saveToUserDefaults(gifs: savedGIFs)
+    }
+    
+    func clearAllGIFs() {
+        saveToUserDefaults(gifs: [])
+    }
+    
+    private func saveToUserDefaults(gifs: [GIF]) {
+        guard let data = try? JSONEncoder().encode(gifs) else { return }
+        userDefaults?.set(data, forKey: savedGIFsKey)
+    }
+}