init commit - bring project over from Mood

Shared/views/ContentView.swift

@@ -0,0 +1,152 @@
+//
+//  ContentView.swift
+//  Shared
+//
+//  Created by Trey Tartt on 1/5/22.
+//
+
+import SwiftUI
+import CoreData
+import Charts
+
+struct ContentView: View {
+    @Environment(\.managedObjectContext) private var viewContext
+    
+    @State private var showingSheet = false
+    @State private var showTodayInput = true
+    
+    @FetchRequest(
+        sortDescriptors: [NSSortDescriptor(keyPath: \MoodEntry.date, ascending: false)],
+        animation: .spring())
+    private var items: FetchedResults<MoodEntry>
+    
+    var body: some View {
+        TabView {
+            mainView
+                .tabItem {
+                    Label("Main", systemImage: "list.dash")
+                }
+            
+            GraphView()
+                .tabItem {
+                    Label("Graph", systemImage: "chart.line.uptrend.xyaxis")
+                }
+        }
+    }
+    
+    private var settingsButtonView: some View {
+        HStack {
+            Spacer()
+            Button(action: {
+                showingSheet.toggle()
+            }, label: {
+                Image(systemName: "gear")
+                    .foregroundColor(Color(UIColor.systemGray))
+                    .font(.system(size: 20))
+            }).sheet(isPresented: $showingSheet) {
+                SettingsView()
+            }.padding(.trailing)
+        }
+    }
+    
+    private var listView: some View {
+        List {
+            ForEach(items) { item in
+                HStack {
+                    item.mood.icon
+                        .font(.system(size: 50))
+                    VStack {
+                        Text("\(item.moodString)")
+                            .font(.title)
+                            .foregroundColor(Color(UIColor.systemGray))
+                            .frame(maxWidth: .infinity, alignment: .leading)
+                        Text(item.date!, style: .date)
+                            .font(.body)
+                            .foregroundColor(Color(UIColor.label))
+                            .frame(maxWidth: .infinity, alignment: .leading)
+                    }
+                    .padding(.leading)
+                }
+            }
+            .onDelete(perform: deleteItems)
+        }
+    }
+    
+    private var mainView: some View {
+        VStack{
+            settingsButtonView
+            if shouldShowTodayInput() {
+                AddMoodHeaderView()
+                    .frame(minHeight: 85, maxHeight: 180)
+                    .frame(minWidth: 0, maxWidth: .infinity)
+            } else {
+                HeaderStatsView(entries: [
+                    //x - position of a bar, y - height of a bar
+                    BarChartDataEntry(x: 1, y: 1),
+                    BarChartDataEntry(x: 2, y: 5),
+                    BarChartDataEntry(x: 3, y: 2),
+                    BarChartDataEntry(x: 4, y: 4),
+                    BarChartDataEntry(x: 5, y: 1)
+                ])
+                .frame(minHeight: 85, maxHeight: 180)
+            }
+            listView
+        }
+    }
+    
+    private func deleteItems(offsets: IndexSet) {
+        withAnimation {
+            offsets.map { items[$0] }.forEach(viewContext.delete)
+            
+            do {
+                try viewContext.save()
+            } catch {
+                // Replace this implementation with code to handle the error appropriately.
+                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
+                let nsError = error as NSError
+                fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
+            }
+        }
+    }
+    
+    private func shouldShowTodayInput() -> Bool {
+        let fetchRequest = NSFetchRequest<MoodEntry>(entityName: "MoodEntry")
+        
+        var calendar = Calendar.current
+        calendar.timeZone = NSTimeZone.local
+        
+        // Get today's beginning & end
+        let dateFrom = calendar.startOfDay(for: Date()) // eg. 2016-10-10 00:00:00
+        let dateTo = calendar.date(byAdding: .day, value: 1, to: dateFrom)!
+        // Note: Times are printed in UTC. Depending on where you live it won't print 00:00:00 but it will work with UTC times which can be converted to local time
+        
+        // Set predicate as date being today's date
+        let fromPredicate = NSPredicate(format: "%@ <= %K", dateFrom as NSDate, #keyPath(MoodEntry.date))
+        let toPredicate = NSPredicate(format: "%K < %@", #keyPath(MoodEntry.date), dateTo as NSDate)
+        let datePredicate = NSCompoundPredicate(andPredicateWithSubpredicates: [fromPredicate, toPredicate])
+        fetchRequest.predicate = datePredicate
+        let entries = try! self.viewContext.count(for: fetchRequest)
+        
+        return entries == 0
+    }
+}
+
+private let itemFormatter: DateFormatter = {
+    let formatter = DateFormatter()
+    formatter.dateStyle = .short
+    formatter.timeStyle = .medium
+    return formatter
+}()
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView().environment(\.managedObjectContext, PersistenceController.shared.container.viewContext)
+            .onAppear(perform: {
+                PersistenceController.shared.populateMemory()
+            })
+        
+        ContentView()
+            .preferredColorScheme(.dark)
+            .environment(\.managedObjectContext, PersistenceController.shared.container.viewContext)
+    }
+}