namespace Raliway.Tests.Errors;

public class Serialization
{
    [Fact]
    public void WhenSerializingManyErrors()
    {
        // Given
        Error many_errors = new ManyErrors(
        [
            Error.New("err1", "msg1",
            [
                new("ext", "ext_value"),
            ]),
            Error.New(new Exception("msg2")),
        ]);
        // When
        var result = JsonSerializer.Serialize(many_errors);
        // Then
        result.ShouldBe(
            "[{\"type\":\"err1\",\"msg\":\"msg1\",\"ext\":\"ext_value\"},{\"type\":\"System.Exception\",\"msg\":\"msg2\"}]");
    }

    [Fact]
    public void WhenDeserializingManyErrorsAsError()
    {
        // Given
        var json = "[{\"type\":\"err1\",\"msg\":\"msg1\",\"ext1\":\"ext_value1\",\"ext2\":\"ext_value2\"},{\"type\":\"System.Exception\",\"msg\":\"msg2\"}]";
        // When
        var result = JsonSerializer.Deserialize<Error>(json);
        // Then
        result.ShouldBeOfType<ManyErrors>();
        ManyErrors manyErrors = (ManyErrors)result;

        manyErrors.Count.ShouldBe(2);
        manyErrors.ShouldBe(
            Error.Many(
                Error.New("err1", "msg1"),
                Error.New(new Exception("msg2"))
            ).ToEnumerable());
        manyErrors[0]["ext1"].ShouldBe("ext_value1");
        manyErrors[0]["ext2"].ShouldBe("ext_value2");
    }

    [Fact]
    public void WhenDeserializingManyErrorsAsManyErrors()
    {
        // Given
        var json = "[{\"type\":\"err1\",\"msg\":\"msg1\",\"ext1\":\"ext_value1\",\"ext2\":\"ext_value2\"},{\"type\":\"System.Exception\",\"msg\":\"msg2\"}]";
        // When
        var result = JsonSerializer.Deserialize<ManyErrors>(json);
        // Then
        result.ShouldNotBeNull();
        result.Count.ShouldBe(2);
        result.ShouldBe(
            Error.Many(
                Error.New("err1", "msg1"),
                Error.New(new Exception("msg2"))
            ).ToEnumerable());
        result[0]["ext1"].ShouldBe("ext_value1");
        result[0]["ext2"].ShouldBe("ext_value2");
    }
}