using FinancialApi.Application.Commands;
using FinancialApi.Application.Handlers;
using FinancialApi.Application.Models;
using FinancialApi.Domain.Entities;
using FluentAssertions;
using FluentAssertions.Execution;
using Microsoft.Extensions.Time.Testing;

namespace FinancialApi.Application.UnitTests;

public class TransferFundsHandlerTests
{
    public class ApplyFeeHandlerTests
    {
        [Fact]
        public void GivenValidAccounts_BasicFee_ShouldValidateEverything()
        {
            // Arrange
            var fakeTimeProvider = new FakeTimeProvider();
            var command = new TransferFundsCommand(1, 2, 100);
            var sourceAccount = new Account(1, 100, AccountType.Liability);
            var destAccount = new Account(1, 100, AccountType.Liability);
            var transferContext = new TransferContext(sourceAccount, destAccount, fakeTimeProvider.GetUtcNow());

            // Act
            var (sourceWrite, destWrite, journalWrite, @event) = TransferFundsHandler.Handle(command, transferContext);

            // Assert
            using var _ = new AssertionScope();
            sourceWrite.Entity.Balance.Should()
                .Be(0);
            destWrite.Entity.Balance.Should()
                .Be(200);
            journalWrite.Entity.Lines.Should()
                .HaveCountGreaterThanOrEqualTo(2);
        }
    }
}