WIP

BudgetApp.Data/Repositories/SalaryRepository.cs

@@ -29,6 +29,27 @@ public class SalaryRepository(ApplicationDbContext db) : ISalaryRepository
         await MaterializeSalaryTransactionsAsync(salary.UserId, windowEnd);
     }
 
+    public async Task UpdateSalaryAsync(Salary salary, DateTime windowEnd, string userId)
+    {
+        var existing = await db.Salaries
+            .FirstOrDefaultAsync(s => s.Id == salary.Id && s.UserId == userId);
+        if (existing is null) return;
+
+        existing.Name = salary.Name;
+        existing.Amount = salary.Amount;
+        existing.AccountId = salary.AccountId;
+        existing.RecurrenceType = salary.RecurrenceType;
+        existing.StartDate = salary.StartDate;
+        await db.SaveChangesAsync();
+
+        // Delete future unpaid transactions and re-materialise with the updated settings
+        await db.Transactions
+            .Where(t => t.SalaryId == salary.Id && t.Date.Date > DateTime.Today && !t.IsPaid)
+            .ExecuteDeleteAsync();
+
+        await MaterializeSalaryTransactionsAsync(userId, windowEnd);
+    }
+
     public async Task DeleteSalaryAsync(int id, string userId)
     {
         var exists = await db.Salaries.AnyAsync(s => s.Id == id && s.UserId == userId);