using FinancialApi.Application;
using FinancialApi.Infrastructure;
using Microsoft.EntityFrameworkCore;

namespace FinancialApi;

public static class ApplyFeeHandler
{
    public static Task<Account?> LoadAsync(ApplyFeeCommand cmd, AccountDbContext db)
        => db.Set<Account>().AsNoTracking()
            .FirstOrDefaultAsync(x => x.Id == cmd.AccountId);

    public static (Account UpdatedAccount, FeeAppliedEvent Event) Handle(ApplyFeeCommand cmd, Account account)
    {
        var updatedAccount = account.ApplyFee(cmd.Amount);

        var @event = new FeeAppliedEvent(account.Id, cmd.Amount);

        return (updatedAccount, @event);
    }
}

public record ApplyFeeCommand(int AccountId, decimal Amount);

public record FeeAppliedEvent(int AccountId, decimal Amount);