Oli Sturm
47 lines
1.5 KiB
C#
47 lines
1.5 KiB
C#
using CsharpFp2.Domain;
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using CsharpFp2.Infrastructure;
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namespace CsharpFp2.Application;
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// delegate type is optional, but nice to illustrate
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public delegate WithdrawResult WithdrawMoney(Guid accountId, decimal amount);
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public static class AccountApplication
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{
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public static WithdrawMoney CreateWithdrawMoney(
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LoadAccount loadAccount,
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SaveAccount saveAccount
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)
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{
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return (accountId, amount) =>
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{
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var account =
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loadAccount(accountId) ?? throw new InvalidOperationException("Account not found.");
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Console.WriteLine(
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$"[App] Account loaded. Current balance: {account.Balance.Amount:0.00}"
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);
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Console.WriteLine($"[App] Executing withdrawal of {amount:0.00}...");
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switch (AccountDomain.Withdraw(account, new Money(amount)))
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{
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case WithdrawResult.Success s:
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{
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Console.WriteLine(
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$"[App] Withdrawal applied. New balance: {s.Account.Balance.Amount:0.00}"
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);
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saveAccount(s.Account);
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Console.WriteLine("[App] Account persisted.");
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return s;
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}
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case var other:
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{
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Console.Error.WriteLine($"[App Error] Withdrawal failed. Error: {other}");
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return other;
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}
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}
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};
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}
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}
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