Integrated SQLite database.

PcgsInvUi/App.axaml.cs

@@ -16,12 +16,8 @@ public partial class App : Application {
     public override void OnFrameworkInitializationCompleted() {
         base.OnFrameworkInitializationCompleted();
         
-        // Create a connection to SQLite
-        var database = new Database();
-        var coin = database.GetCoin(1003, "AG-3");
-        
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) {
-            var coins = new Services.CoinCollection();
+            var coins = new Database();
 
             desktop.MainWindow = new MainWindow {
                 DataContext = new MainWindowViewModel(coins),

PcgsInvUi/Services/Database.cs

@@ -46,7 +46,7 @@ public class Database {
         SQLiteCommand cmd = Connection.CreateCommand();
         cmd.CommandText =
             $"CREATE TABLE IF NOT EXISTS {collectionName} (" +
-            "PCGS_NUMBER INTEGER," +
+            "PCGS_NUMBER TEXT," +
             "GRADE TEXT" +
             "NAME TEXT," +
             "YEAR INTEGER," +
@@ -60,7 +60,7 @@ public class Database {
             "SERIES_NAME TEXT," +
             "CATEGORY TEXT," +
             "DESIGNATION TEXT," +
-            "CERT_NUM TEXT," +
+            "CERT_NUM INTEGER," +
             "QUANTITY INTEGER," +
             "PRIMARY KEY(PCGS_NUMBER, GRADE))";
         
@@ -79,17 +79,15 @@ public class Database {
         // Create a SQL command.
         SQLiteCommand cmd = Connection.CreateCommand();
         cmd.CommandText =
-            "INSERT INTO CollectionTable (PCGS_NUMBER, GRADE, NAME, YEAR," +
+            "INSERT INTO CollectionTable (PCGS_NUMBER, GRADE, YEAR," +
             "DENOMINATION, MINT_MARK, PRICE_GUIDE_VALUE, COIN_FACTS_LINK," +
             "MAJOR_VARIETY, MINOR_VARIETY, DIE_VARIETY, SERIES_NAME, CATEGORY, DESIGNATION," +
             "CERT_NUM, QUANTITY) " +
-            "VALUES (@PcgsNumber, @Name, @Grade, @Value, @Year, @Denomination, @MintMark, @PriceGuideValue," +
+            "VALUES (@PcgsNumber, @Grade, @Year, @Denomination, @MintMark, @PriceGuideValue," +
             "@CoinFactsLink, @MajorVariety, @MinorVariety, @DieVariety, @SeriesName, @Category, @Designation," +
             "@CertificateNumber, @Quantity)";
         cmd.Parameters.AddWithValue("@PcgsNumber", newCoin.PCGSNo);
-        cmd.Parameters.AddWithValue("@Name", newCoin.Name);
         cmd.Parameters.AddWithValue("@Grade", newCoin.Grade);
-        cmd.Parameters.AddWithValue("@Value", newCoin.PriceGuideValue);
         cmd.Parameters.AddWithValue("@Year", newCoin.Year);
         cmd.Parameters.AddWithValue("@Denomination", newCoin.Denomination);
         cmd.Parameters.AddWithValue("@MintMark", newCoin.MintMark);
@@ -117,34 +115,59 @@ public class Database {
         using (var reader = cmd.ExecuteReader()) {
             while (reader.Read()) {
                 // Create coin from reader then add to list.
-                Coin coin = new Coin();
+                coins.Add(CoinFromReader(reader));
-                coins.Add(coin);
             }
         }
         
         return coins;
     }
     
-    public Coin GetCoin(int pcgsNumber, string grade) {
+    public Coin? GetCoin(int pcgsNumber, string grade) {
         // Get the coin based off of the pcgs number.
         SQLiteCommand cmd = Connection.CreateCommand();
         cmd.CommandText = "SELECT * FROM CollectionTable WHERE Id = @Id AND Grade = @Grade";
         cmd.Parameters.AddWithValue("@Id", pcgsNumber);
         cmd.Parameters.AddWithValue("@Grade", grade);
 
+        Coin? returnCoin = null;
+        
         // Execute the command.
         using (var reader = cmd.ExecuteReader()) {
             while (reader.Read()) {
-                // TODO Create a coin from the reader.
+                returnCoin = CoinFromReader(reader);
-                Console.WriteLine(reader.ToString());
-                Coin coin = new Coin();
             }
         }
 
-        return new Coin();
+        return returnCoin;
+    }
+    
+    private Coin CoinFromReader(SQLiteDataReader reader) {
+        Coin coin = new Coin();
+        coin.PCGSNo = reader.GetString(0);
+        coin.Grade = reader.GetString(1);
+        coin.Year = reader.GetInt32(2);
+        coin.Denomination = reader.GetString(3);
+        coin.MintMark = reader.GetString(4);
+        coin.PriceGuideValue = reader.GetDouble(5);
+        coin.CoinFactsLink = reader.GetString(6);
+        coin.MajorVariety = reader.GetString(7);
+        coin.MinorVariety = reader.GetString(8);
+        coin.DieVariety = reader.GetString(9);
+        coin.SeriesName = reader.GetString(10);
+        coin.Category = reader.GetString(11);
+        coin.Designation = reader.GetString(12);
+        coin.CertificateNumber = reader.GetInt32(13);
+        coin.Quantity = reader.GetInt32(14);
+        coin.TotalPrice = coin.Quantity * coin.PriceGuideValue;
+        return coin;
     }
 
     public void DeleteCoin(Coin delCoin) {
+        SQLiteCommand cmd = Connection.CreateCommand();
+        cmd.CommandText = "DELETE FROM CollectionTable WHERE PCGS_NUMBER = @PcgsNumber AND GRADE = @Grade";
+        cmd.Parameters.AddWithValue("@PcgsNumber", delCoin.PCGSNo);
+        cmd.Parameters.AddWithValue("@Grade", delCoin.Grade);
         
+        cmd.ExecuteNonQuery();
     }
 }

PcgsInvUi/ViewModels/MainWindowViewModel.cs

@@ -14,25 +14,26 @@ namespace PcgsInvUi.ViewModels;
 // TODO Error handling.
 // TODO Manual handling of API key.
 // TODO Use CoinFacts link.
+// TODO Splash screen that loads.
 // TODO Take giant sheet of coins to integrate into the application.
-// TODO Update all coins.
+// TODO Update all coins. Choose those that are older first.
 // TODO API request tracker (1000 per day)
-// TODO API update schedules (per month? manual override? needs to store a date of last update in the coin object)
+// TODO Ok button greys out while request is happening.
+// TODO Track when coins were last updated.
+// TODO Image for coin in notes view.
 
 public class MainWindowViewModel : ViewModelBase {
     public ViewModelBase SidebarContent {
         get => _sideContent;
         private set => this.RaiseAndSetIfChanged(ref _sideContent, value);
     }
-
     public ObservableCollection<Coin> CoinCollection { get; set; }
     public ObservableCollection<Coin> DisplayedList { get; set; }
-
+    public Database ConnectedDatabase { get; set; }
     public Coin? SelectedCoin {
         get => _selectedCoin;
         set => this.RaiseAndSetIfChanged(ref _selectedCoin, value);
     }
-
     public double TotalValue {
         get => _totalValue;
         set => this.RaiseAndSetIfChanged(ref _totalValue, value);
@@ -48,10 +49,14 @@ public class MainWindowViewModel : ViewModelBase {
     private double _totalValue;
     private PcgsClient _pcgsClient;
 
-    public MainWindowViewModel(CoinCollection coins) {
+    // public MainWindowViewModel(CoinCollection coins) {
+    public MainWindowViewModel(Database coins) {
+        ConnectedDatabase = coins;
         var newViewModel = new NewViewModel();
         _sideContent = newViewModel;
-        DisplayedList = CoinCollection = new ObservableCollection<Coin>(coins.GetItems());
+        // DisplayedList = CoinCollection = new ObservableCollection<Coin>(coins.GetItems());
+        DisplayedList = CoinCollection =
+            new ObservableCollection<Coin>(coins.GetCollection("CollectionTable"));
         _pcgsClient = new PcgsClient(
             "eAb8gS0I2XAvT_5gJeiGJaglMia1Tk-oB4kJUK6kuafyrny_S61vIJY-Ikl4nCQM67wrdxzUqLVWTV2kBSxD3d5XNBHxHnYBhcSS6dOPug0hZaF3qAv56df3gYSzOGh9Tif5y0eP3Iw0LrqKDr1Hj-dk6SV6GKog2IIqCPQhhHH8FMTWBTYO-_O8cx7qLdM5GM8KlTsic6g3VRUhM8EA_4OO04dCfmNLGhqINRl3jGZ0Q4ziI8fng2bVWsIyteqiPzUn10rIQ3-OPpqVZG_DxeOmOejj4GzbUNyqUOajy-nr5rYY");
 
@@ -62,8 +67,10 @@ public class MainWindowViewModel : ViewModelBase {
         DeleteCommand = ReactiveCommand.CreateFromTask(async () => {
             var deleteViewModel = new DeleteWindowViewModel();
             var result = await ShowDeleteWindow.Handle(deleteViewModel);
-            if (result)
+            if (result && SelectedCoin != null) {
+                ConnectedDatabase.DeleteCoin(SelectedCoin);
                 CoinCollection.Remove(SelectedCoin); // possible null deref - ignored due to button being disabled.
+            }
         }, deleteEnabled);
 
         // Set up the ability to open the find window.
@@ -85,6 +92,7 @@ public class MainWindowViewModel : ViewModelBase {
                 var newCoin = await _pcgsClient.GetCoinFactsByGrade(requestStructure.Item1, requestStructure.Item2);
                 newCoin.Quantity = requestStructure.Item3;
                 CoinCollection.Add(newCoin);
+                coins.InsertCoin(newCoin);
                 TotalValue += newCoin.Quantity * newCoin.PriceGuideValue;
             });