MC2-Team7 · JaeUngJang · May 5, 2023
diff --git a/CloudKitTrial.xcodeproj/project.pbxproj b/CloudKitTrial.xcodeproj/project.pbxproj
@@ -12,6 +12,8 @@
 		40B3CEB72A03916300D733C4 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 40B3CEB62A03916300D733C4 /* Assets.xcassets */; };
 		40B3CEBA2A03916300D733C4 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 40B3CEB92A03916300D733C4 /* Preview Assets.xcassets */; };
 		40B3CEC12A0393D300D733C4 /* .gitignore in Resources */ = {isa = PBXBuildFile; fileRef = 40B3CEC02A0393D300D733C4 /* .gitignore */; };
+		40B3CEC62A04D5C600D733C4 /* ItemListing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 40B3CEC52A04D5C600D733C4 /* ItemListing.swift */; };
+		40B3CEC92A04D82400D733C4 /* ItemListViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 40B3CEC82A04D82400D733C4 /* ItemListViewModel.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -22,6 +24,9 @@
 		40B3CEB92A03916300D733C4 /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
 		40B3CEC02A0393D300D733C4 /* .gitignore */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = .gitignore; sourceTree = "<group>"; };
 		40B3CEC22A0394EA00D733C4 /* CloudKitTrial.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = CloudKitTrial.entitlements; sourceTree = "<group>"; };
+		40B3CEC32A04D3ED00D733C4 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = Info.plist; sourceTree = "<group>"; };
+		40B3CEC52A04D5C600D733C4 /* ItemListing.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ItemListing.swift; sourceTree = "<group>"; };
+		40B3CEC82A04D82400D733C4 /* ItemListViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ItemListViewModel.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -55,6 +60,9 @@
 		40B3CEB12A03916200D733C4 /* CloudKitTrial */ = {
 			isa = PBXGroup;
 			children = (
+				40B3CEC72A04D80700D733C4 /* ViewModel */,
+				40B3CEC42A04D59800D733C4 /* Model */,
+				40B3CEC32A04D3ED00D733C4 /* Info.plist */,
 				40B3CEC22A0394EA00D733C4 /* CloudKitTrial.entitlements */,
 				40B3CEB22A03916200D733C4 /* CloudKitTrialApp.swift */,
 				40B3CEB42A03916200D733C4 /* ContentView.swift */,
@@ -72,6 +80,22 @@
 			path = "Preview Content";
 			sourceTree = "<group>";
 		};
+		40B3CEC42A04D59800D733C4 /* Model */ = {
+			isa = PBXGroup;
+			children = (
+				40B3CEC52A04D5C600D733C4 /* ItemListing.swift */,
+			);
+			path = Model;
+			sourceTree = "<group>";
+		};
+		40B3CEC72A04D80700D733C4 /* ViewModel */ = {
+			isa = PBXGroup;
+			children = (
+				40B3CEC82A04D82400D733C4 /* ItemListViewModel.swift */,
+			);
+			path = ViewModel;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -144,6 +168,8 @@
 			buildActionMask = 2147483647;
 			files = (
 				40B3CEB52A03916200D733C4 /* ContentView.swift in Sources */,
+				40B3CEC92A04D82400D733C4 /* ItemListViewModel.swift in Sources */,
+				40B3CEC62A04D5C600D733C4 /* ItemListing.swift in Sources */,
 				40B3CEB32A03916200D733C4 /* CloudKitTrialApp.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -277,6 +303,7 @@
 				DEVELOPMENT_TEAM = M8JXU75248;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = CloudKitTrial/Info.plist;
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
@@ -307,6 +334,7 @@
 				DEVELOPMENT_TEAM = M8JXU75248;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = CloudKitTrial/Info.plist;
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;

diff --git a/CloudKitTrial/CloudKitTrial.entitlements b/CloudKitTrial/CloudKitTrial.entitlements
@@ -12,5 +12,7 @@
 	<array>
 		<string>CloudKit</string>
 	</array>
+	<key>com.apple.developer.ubiquity-kvstore-identifier</key>
+	<string>$(TeamIdentifierPrefix)$(CFBundleIdentifier)</string>
 </dict>
 </plist>
diff --git a/CloudKitTrial/CloudKitTrialApp.swift b/CloudKitTrial/CloudKitTrialApp.swift
@@ -6,12 +6,17 @@
 //
 
 import SwiftUI
+import CloudKit
 
 @main
 struct CloudKitTrialApp: App {
+
+    // public container
+    let container = CKContainer(identifier: "iCloud.com.example.cookcook")
+
     var body: some Scene {
         WindowGroup {
-            ContentView()
+            ContentView(vm: ItemListViewModel(container: container))
         }
     }
 }
diff --git a/CloudKitTrial/ContentView.swift b/CloudKitTrial/ContentView.swift
@@ -6,21 +6,77 @@
 //
 
 import SwiftUI
+import CloudKit
 
 struct ContentView: View {
+
+    @StateObject private var vm: ItemListViewModel
+
+    @State var title: String = ""
+    @State var price: String = ""
+
+    init(vm: ItemListViewModel) {
+        _vm = StateObject(wrappedValue: vm)
+    }
+
+    func deleteItem(_ indexSet: IndexSet) {
+        indexSet.forEach { index in
+            let item = vm.items[index]
+            if let recordId = item.recordId {
+                vm.deleteItem(recordId)
+            }
+
+        }
+    }
+
     var body: some View {
-        VStack {
-            Image(systemName: "globe")
-                .imageScale(.large)
-                .foregroundColor(.accentColor)
-            Text("Hello, world!")
+
+        NavigationView {
+
+            VStack {
+
+                TextField("Enter Ingredient", text: $title)
+                    .textFieldStyle(.roundedBorder)
+                TextField("Enter Price", text: $price)
+                    .textFieldStyle(.roundedBorder)
+
+                Button("Save") {
+                    guard let price = try? Decimal(price, format: .number) else { return }
+
+                    vm.saveItem(title: title, price: price)
+
+                    self.title = ""
+                    self.price = ""
+
+                }.disabled(title.trimmingCharacters(in: .whitespaces).isEmpty || price.trimmingCharacters(in: .whitespaces).isEmpty)
+
+                Spacer()
+
+                List {
+                    ForEach(vm.items, id: \.recordId) { item in
+                        HStack {
+                            Text(item.title)
+                            Spacer()
+                            Text("$ " + String(describing: item.price))
+                        }
+                    }.onDelete(perform: deleteItem)
+                }
+
+
+                    .navigationTitle("Ingredient")
+            }
+            .padding()
+            .onAppear {
+                vm.populateItem()
+            }
         }
-        .padding()
+
+
     }
 }
 
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
-        ContentView()
+        ContentView(vm: ItemListViewModel(container: CKContainer.default()))
     }
 }
diff --git a/CloudKitTrial/Model/ItemListing.swift b/CloudKitTrial/Model/ItemListing.swift
@@ -0,0 +1,34 @@
+//
+//  ItemListing.swift
+//  CloudKitTrial
+//
+//  Created by JaeUngJang on 2023/05/05.
+//
+
+import Foundation
+import CloudKit
+
+struct ItemListing {
+
+    var recordId: CKRecord.ID?
+    let title: String
+    let price: Decimal
+
+    init(recordId: CKRecord.ID? = nil, title: String, price: Decimal) {
+        self.recordId = recordId
+        self.title = title
+        self.price = price
+    }
+
+    func toDictionary() -> [String: Any] {
+        return ["title": title, "price": price]
+    }
+
+    static func fromRecord(_ record: CKRecord) -> ItemListing? {
+        guard let title = record.value(forKey: "title") as? String , let price = record.value(forKey: "price") as? Double else {
+            return nil
+        }
+
+        return ItemListing(recordId: record.recordID, title: title, price: Decimal(price))
+    }
+}
diff --git a/CloudKitTrial/ViewModel/ItemListViewModel.swift b/CloudKitTrial/ViewModel/ItemListViewModel.swift
@@ -0,0 +1,109 @@
+//
+//  ItemListViewModel.swift
+//  CloudKitTrial
+//
+//  Created by JaeUngJang on 2023/05/05.
+//
+
+import Foundation
+import CloudKit
+
+enum RecordType: String {
+    case itemListing = "ItemListing"
+}
+
+class ItemListViewModel: ObservableObject {
+
+    private var database: CKDatabase
+    private var container: CKContainer
+
+    @Published var items: [ItemViewModel] = []
+
+    init(container: CKContainer) {
+        self.container = container
+        self.database = self.container.publicCloudDatabase
+    }
+
+    func deleteItem(_ recordId: CKRecord.ID) {
+        database.delete(withRecordID: recordId) { deletedRecordId, error in
+            if let error = error {
+                print("Error")
+            } else {
+                self.populateItem()
+            }
+
+        }
+
+    }
+
+    func saveItem(title: String, price: Decimal) {
+
+        let record = CKRecord(recordType: RecordType.itemListing.rawValue)
+        let itemListing = ItemListing(title: title, price: price)
+        record.setValuesForKeys(itemListing.toDictionary())
+
+        // saving record in database
+        self.database.save(record) { newRecord, error in
+            if let error = error {
+                print(error)
+            } else {
+                if let newRecord = newRecord {
+                    if let itemListing = ItemListing.fromRecord(newRecord) {
+                        DispatchQueue.main.async {
+                            self.items.append(ItemViewModel(itemListing: itemListing))
+                        }
+                    }
+                    print("SAVED")
+                }
+            }
+        }
+    }
+
+    func populateItem() {
+
+        var items: [ItemListing] = []
+
+        let query = CKQuery(recordType: RecordType.itemListing.rawValue, predicate: NSPredicate(value: true))
+
+        database.fetch(withQuery: query) { result in
+            switch result {
+            case .success(let result):
+                result.matchResults.compactMap { $0.1 }
+                    .forEach {
+                        switch $0 {
+                        case .success(let record):
+                            if let itemListing = ItemListing.fromRecord(record) {
+                                items.append(itemListing)
+                            }
+//                            print(record)
+                        case .failure(let error):
+                            print(error)
+                        }
+                    }
+
+                DispatchQueue.main.async {
+                    self.items = items.map(ItemViewModel.init)
+                }
+//                print(result.matchResults)
+            case .failure(let error):
+                print(error)
+            }
+        }
+    }
+}
+
+struct ItemViewModel {
+    let itemListing: ItemListing
+
+    var recordId: CKRecord.ID? {
+        itemListing.recordId
+    }
+
+    var title: String {
+        itemListing.title
+    }
+
+    var price: Decimal {
+        itemListing.price
+    }
+}