using Microsoft.EntityFrameworkCore;
using ReserveManagementSystemApi.Services;
using ReserveManagementSystemLib.Models;
using ReserveManagementSystemLib.Persistence;
using ReserveManagementSystemLib.Repositories;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TechTalk.SpecFlow;
using TechTalk.SpecFlow.Assist;
using TechTalk.SpecFlow.Assist.ValueRetrievers;

namespace ReserveManagementSystemApi.Tests.Features
{
    [Binding]
    public sealed class DealerServiceSteps
    {
        // For additional details on SpecFlow step definitions see https://go.specflow.org/doc-stepdef

        private readonly ScenarioContext _scenarioContext;
        private DealerService _dealerService;
        private AppDbContext _appDbContext;
        private IEnumerable<Dealer> _dealersResult;
        private List<Loan> _loans;

        public DealerServiceSteps(ScenarioContext scenarioContext)
        {
            _scenarioContext = scenarioContext;
            Service.Instance.ValueRetrievers.Register(new NullValueRetriever("<null>"));
        }

        [BeforeScenario]
        public void CreateDatabase()
        {
            var options = new DbContextOptionsBuilder<AppDbContext>()
                .UseInMemoryDatabase(Guid.NewGuid().ToString())
                .Options;
            _appDbContext = new AppDbContext(options);
            _dealerService = new DealerService(new DealerRepository(_appDbContext));
        }

        [AfterScenario]
        public void Dispose()
        {
            _appDbContext.Database.EnsureDeleted();
            _appDbContext.Dispose();
        }

        [Given(@"the dealer table looks like")]
        public void GivenTheDealerTableLooksLike(Table table)
        {
            var dealers = table.CreateSet<Dealer>().ToList();
            _appDbContext.Dealers.AddRange(dealers);
            _appDbContext.SaveChanges();
        }

        [Given(@"a list of loans with dealers that look like")]
        public void GivenAListOfLoansWithDealersThatLookLike(Table table)
        {
            _loans = table.CreateSet<Loan>().ToList();
            var dealers = table.CreateSet<Dealer>().ToList();
            for (var i=0; i < _loans.Count; i++)
            {
                _loans.Skip(i).First().Dealer = dealers.Skip(i).First();
            }
        }

        [When(@"I search for dealers with search string '(.*)'")]
        public async void WhenISearchForDealersWithSearchString(string dealerSearchText)
        {
            _dealersResult = await _dealerService.Search(dealerSearchText);
        }

        [When(@"I update the dealers from the loans")]
        public async void WhenIUpdateTheDealersFromTheLoans()
        {
            await _dealerService.UpdateDealersAsync(_loans);
        }

        [Then(@"dealers returned should be")]
        public void ThenDealersReturnedShouldBe(Table table)
        {
            table.CompareToSet(_dealersResult);
        }

        [Then(@"the dealer table now looks like")]
        public void ThenTheDealerTableNowLooksLike(Table table)
        {
            var dealers = _appDbContext.Dealers.ToList();
            table.CompareToSet(dealers);
        }
    }
}