using System;
using System.Linq;
using System.Net;
using Funq;
using NUnit.Framework;
using ServiceStack.FluentValidation;
using ServiceStack.FluentValidation.Validators;
using ServiceStack.Text;
using ServiceStack.Validation;

namespace ServiceStack.WebHost.Endpoints.Tests;

public class TriggerValidators : IReturn<TriggerValidators>
{
    public string CreditCard { get; set; }
    public string Email { get; set; }
    public string Empty { get; set; }
    public string Equal { get; set; }
    public int ExclusiveBetween { get; set; }
    public int GreaterThanOrEqual { get; set; }
    public int GreaterThan { get; set; }
    public int InclusiveBetween { get; set; }
    public string Length { get; set; }
    public int LessThanOrEqual { get; set; }
    public int LessThan { get; set; }
    public string NotEmpty { get; set; }
    public string NotEqual { get; set; }
    public string Null { get; set; }
    public string RegularExpression { get; set; }
    public decimal ScalePrecision { get; set; }
}

public class TriggerValidatorsValidator : AbstractValidator<TriggerValidators>
{
    public TriggerValidatorsValidator()
    {
        RuleFor(x => x.CreditCard).CreditCard();
        RuleFor(x => x.Email).EmailAddress();
        RuleFor(x => x.Empty).Empty();
        RuleFor(x => x.Equal).Equal("Equal");
        RuleFor(x => x.ExclusiveBetween).ExclusiveBetween(10, 20);
        RuleFor(x => x.GreaterThanOrEqual).GreaterThanOrEqualTo(10);
        RuleFor(x => x.GreaterThan).GreaterThan(10);
        RuleFor(x => x.InclusiveBetween).InclusiveBetween(10, 20);
        RuleFor(x => x.Length).Length(10);
        RuleFor(x => x.LessThanOrEqual).LessThanOrEqualTo(10);
        RuleFor(x => x.LessThan).LessThan(10);
        RuleFor(x => x.NotEmpty).NotEmpty();
        RuleFor(x => x.NotEqual).NotEqual("NotEqual");
        RuleFor(x => x.Null).Null();
        RuleFor(x => x.RegularExpression).Matches(@"^[a-z]*$");
        RuleFor(x => x.ScalePrecision).SetValidator(new ScalePrecisionValidator(1, 1));
    }
}

public class ValidatorIssues : IReturn<ValidatorIssues>
{
    public DateTime ValidTo { get; set; }
}

public class ValidatorIssuesValidator : AbstractValidator<ValidatorIssues>
{
    public ValidatorIssuesValidator()
    {
        RuleFor(x => x.ValidTo).GreaterThanOrEqualTo(x => DateTime.UtcNow);
    }
}

public class ValidationRulesTest : IReturn<ValidationRulesTest>
{
    public string Id { get; set; }
    public string AuthSecret { get; set; }
}

public class ValidationService : Service
{
    public object Any(TriggerValidators request) => request;
    public object Any(ValidatorIssues request) => request;

    public object Any(ValidationRulesTest request) => request;
}

public class ValidationExceptionTests
{
    class AppHost() : AppSelfHostBase(nameof(ValidationExceptionTests), typeof(ValidationExceptionTests).Assembly)
    {
        public override void Configure(Container container)
        {
            container.RegisterValidator(typeof(TriggerValidatorsValidator));
            container.RegisterValidator(typeof(ValidatorIssuesValidator));
        }
    }

    private readonly ServiceStackHost appHost;
    public ValidationExceptionTests()
    {
        appHost = new AppHost()
            .Init()
            .Start(Config.ListeningOn);
    }

    [OneTimeTearDown] public void OneTimeTearDown() => appHost.Dispose();

    protected virtual JsonServiceClient GetClient() => new JsonServiceClient(Config.ListeningOn);

    [Test]
    public void Triggering_all_validators_returns_right_ErrorCode()
    {
        var client = GetClient();
        var request = CreateTriggerValidators();

        try
        {
            var response = client.Post(request);
            Assert.Fail("Should throw");
        }
        catch (WebServiceException ex)
        {
            //ex.ResponseStatus.PrintDump();
            ex.AssertTriggerValidators();
        }
    }

    public static TriggerValidators CreateTriggerValidators()
    {
        var request = new TriggerValidators {
            CreditCard = "NotCreditCard",
            Email = "NotEmail",
            Empty = "NotEmpty",
            Equal = "NotEqual",
            ExclusiveBetween = 1,
            GreaterThan = 1,
            GreaterThanOrEqual = 1,
            InclusiveBetween = 1,
            Length = "Length",
            LessThan = 20,
            LessThanOrEqual = 20,
            NotEmpty = "",
            NotEqual = "NotEqual",
            Null = "NotNull",
            RegularExpression = "FOO",
            ScalePrecision = 123.456m
        };
        return request;
    }

    [Test]
    public void Does_handle_reported_issues_correctly()
    {
        var client = GetClient();
        var request = new ValidatorIssues
        {
            ValidTo = DateTime.UtcNow.AddDays(-1),
        };

        try
        {
            var response = client.Post(request);
            Assert.Fail("Should throw");
        }
        catch (WebServiceException ex)
        {
            ex.ResponseStatus.PrintDump();
            var errors = ex.ResponseStatus.Errors;
            Assert.That(errors.First(x => x.FieldName == "ValidTo").ErrorCode, Is.EqualTo("GreaterThanOrEqual"));
        }
    }
}