Re-layout source code to correct namespaces (handlers, commands, etc.)

2026-07-17 16:57:55 +02:00
parent 09a89a34c4
commit 69cb05f389
25 changed files with 89 additions and 85 deletions
@@ -0,0 +1,52 @@
+using FinancialApi.Application.Commands;
+using FinancialApi.Application.Events;
+using FinancialApi.Application.Queries;
+using FinancialApi.Domain;
+using Wolverine.Persistence;
+
+namespace FinancialApi.Application.Handlers;
+
+public static class TransferFundsHandler
+{
+    public static async Task<TransferPair?> LoadAsync(TransferFundsCommand cmd, IAccountQuery query,
+        TimeProvider timeProvider)
+    {
+        var source = await query.FindByIdAsync(cmd.SourceAccountId);
+        var dest = await query.FindByIdAsync(cmd.DestinationAccountId);
+
+        if (source == null || dest == null) return null;
+
+        return new TransferPair(source, dest, timeProvider.GetUtcNow());
+    }
+
+    public static (
+        IStorageAction<Account> SourceWrite,
+        IStorageAction<Account> DestWrite,
+        IStorageAction<JournalEntry> JournalWrite,
+        FundsTransferredEvent Event
+        ) Handle(TransferFundsCommand cmd, TransferPair pair)
+    {
+        var updatedSource = pair.Source.Debit(cmd.Amount);
+        var updatedDest = pair.Destination.Credit(cmd.Amount);
+
+        var lines = new List<JournalLine>
+        {
+            new(pair.Source.Id, cmd.Amount, EntryType.Debit),
+            new(pair.Destination.Id, cmd.Amount, EntryType.Credit)
+        };
+
+        var journalEntry =
+            BalancedJournal.Create(Guid.NewGuid(),
+                $"Transfer: {cmd.Amount} from {cmd.SourceAccountId} to {cmd.DestinationAccountId}",
+                pair.TimeStamp, lines);
+
+        var @event = new FundsTransferredEvent(cmd.SourceAccountId, cmd.DestinationAccountId, cmd.Amount);
+
+        return (
+            Storage.Update(updatedSource),
+            Storage.Update(updatedDest),
+            Storage.Insert(journalEntry.Entry),
+            @event
+        );
+    }
+}