using Centron.Tests.EndToEnd.Infrastructure;
using System;
using Xunit;
using Xunit.Abstractions;
using Centron.BusinessLogic.Administration.Scripts.ScriptMethods;
using System.Text.RegularExpressions;
using System.Linq;

namespace Centron.Tests.EndToEnd.Tests.ScriptMethods
{
    public class ScriptMethodTests : CentronTest
    {

        public ScriptMethodTests(ITestOutputHelper testOutputHelper)
           : base(testOutputHelper)
        {

        }

        [Fact]
        public void CheckScriptNumbers()
        {
            var pool = new ScriptMethodPool();

            foreach (var currentMethod in pool.ScriptMethods)
            {
                var numberInClassNameMatch = Regex.Match(currentMethod.GetType().Name, "\\d{5,}");

                Assert.True(numberInClassNameMatch.Success, $"{currentMethod.GetType().Name} does not have a scriptnumber in its classname");

                var numberInClassName = int.Parse(numberInClassNameMatch.Value);

                Assert.Equal(numberInClassName, currentMethod.ScriptNumber);
            }

            var doubles = pool.ScriptMethods.GroupBy(f => f.ScriptNumber).Where(f => f.Count() != 1).ToList();

            Assert.Empty(doubles);
        }

        [Fact]
        public void CheckNoNewRiverScriptNumbers()
        {
            // We used to have a lot of scripts with numbers above 50000 from riverbird
            // They got removed from our code-base when we forked the code-base
            // But that means, there are lots of customer databases out there, that have already executed scripts above 50000
            // If we now accidentally use one of those script numbers ourselves, then that script might not get executed for all customers
            // So this test checks, that we don't accidentally add a new script with number above 50000
            
            var pool = new ScriptMethodPool();
            var riverScripts = pool.ScriptMethods
                .Where(f => f.ScriptNumber >= 50000)
                .Select(f => new
                {
                    ScriptNumber = f.ScriptNumber,
                    Name = f.GetType().Name
                })
                .ToList();
            
            this.Verifier.Verify("RiverScripts", riverScripts);
        }
    }
}