using EPAServeur.Context;
using EPAServeur.Exceptions;
using EPAServeur.Models.Formation;
using EPAServeur.Services;
using IO.Swagger.DTO;
using Microsoft.EntityFrameworkCore;
using NUnit.Framework;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace EPAServeur.Tests
{
    public class FormationServiceTests
    {
        private EpContext epContext;

        [SetUp]
        public void Setup()
        {
            var optionBuider = new DbContextOptionsBuilder<EpContext>()
                .UseInMemoryDatabase("server_ep_test")
                .Options;

            epContext = new EpContext(optionBuider);

            epContext.Database.EnsureDeleted(); 
            epContext.Database.EnsureCreated();
            epContext.SaveChanges();

            DataSeeder.AddFormations(epContext);
        }

        [Test]
        public void GetFormationById_PasseEnParamUnIdExistantDansLeJeuDeDonneesFictifs_RetourneUneFormation()
        {
            // Arrange
            FormationService formationService = new FormationService(epContext);

            // Act
            FormationDTO formationDTO = formationService.GetFormationById(1);

            // Assert
            Assert.AreEqual(1, formationDTO.Id);
            Assert.AreEqual("Formation1", formationDTO.Intitule);
            Assert.AreEqual(1, formationDTO.IdAgence);
            Assert.AreEqual(new DateTime(2020, 9, 16, 10, 0, 0), formationDTO.DateDebut);
            Assert.AreEqual(new DateTime(2020, 9, 16), formationDTO.DateFin);
            Assert.AreEqual(2, formationDTO.Heure);
            Assert.AreEqual(1, formationDTO.Jour);
            Assert.AreEqual("Organisme1", formationDTO.Organisme);
            Assert.False(formationDTO.EstCertifie);
            Assert.AreEqual(new OrigineFormationDTO { Id = 2, Libelle = "Exigence client" }, formationDTO.Origine);
            Assert.AreEqual(new StatutFormationDTO { Id = 1, Libelle = "Planifiée" }, formationDTO.Statut);
            Assert.AreEqual(new ModeFormationDTO { Id = 4, Libelle = "E-learning" }, formationDTO.Mode);
            Assert.AreEqual(new TypeFormationDTO { Id = 3, Libelle = "E-learning" }, formationDTO.Type);
        }

        [TestCase(-1)]
        [TestCase(0)]
        [TestCase(999999)]
        [TestCase(null)]
        public void GetFormationById_PasseEnParamUnIdInexistantDansLeJeuDeDonneesFictifs_LeveUneFormationNotFoundException(long? value)
        {
            // Arrange
            FormationService formationService = new FormationService(epContext);

            // Act
            TestDelegate throwException = () => formationService.GetFormationById(value);

            // Assert
            Assert.Throws(typeof(FormationNotFoundException), throwException);
        }

        [Test]
        public async Task GetFormationByIdAsync_PasseEnParamUnIdExistantDansLeJeuDeDonneesFictifs_RetourneUneFormation()
        {
            // Arrange
            FormationService formationService = new FormationService(epContext);

            // Act
            FormationDTO formationDTO = await formationService.GetFormationByIdAsync(1);

            // Assert
            Assert.AreEqual(1, formationDTO.Id);
            Assert.AreEqual("Formation1", formationDTO.Intitule);
            Assert.AreEqual(1, formationDTO.IdAgence);
            Assert.AreEqual(new DateTime(2020, 9, 16, 10, 0, 0), formationDTO.DateDebut);
            Assert.AreEqual(new DateTime(2020, 9, 16), formationDTO.DateFin);
            Assert.AreEqual(2, formationDTO.Heure);
            Assert.AreEqual(1, formationDTO.Jour);
            Assert.AreEqual("Organisme1", formationDTO.Organisme);
            Assert.False(formationDTO.EstCertifie);
            Assert.AreEqual(new OrigineFormationDTO { Id = 2, Libelle = "Exigence client" }, formationDTO.Origine);
            Assert.AreEqual(new StatutFormationDTO { Id = 1, Libelle = "Planifiée" }, formationDTO.Statut);
            Assert.AreEqual(new ModeFormationDTO { Id = 4, Libelle = "E-learning" }, formationDTO.Mode);
            Assert.AreEqual(new TypeFormationDTO { Id = 3, Libelle = "E-learning" }, formationDTO.Type);
        }

        [TestCase(-1)]
        [TestCase(0)]
        [TestCase(999999)]
        [TestCase(null)]
        public void GetFormationByIdAsync_PasseEnParamUnIdInexistantDansLeJeuDeDonneesFictifs_LeveUneFormationNotFoundException(long? value)
        {
            // Arrange
            FormationService formationService = new FormationService(epContext);

            // Act
            AsyncTestDelegate throwException =  () => formationService.GetFormationByIdAsync(value);

            // Assert
            Assert.ThrowsAsync(typeof(FormationNotFoundException), throwException);
        }

        //[TestCase(true, 1, 2, 1, 1, "f", null)]
        //[TestCase(null, null, null, null, null, null, null)]
        //public void GetFormations_PasseDesParamsQuiVont_RetourneDesFormations(bool? asc, int? numPage, int? parPAge, int? idAgence, int? statutFormation, string texte, string tri)
        //{
        //    // Arrange
        //    FormationService formationService = new FormationService(epContext);

        //    // Act
        //    IEnumerable<FormationDTO> formationDTOs = formationService.GetFormations(asc, numPage, parPAge, idAgence, statutFormation, texte, tri);

        //    // Assert
        //    Assert.Less(0, formationDTOs.Count());
        //}

        //[TestCase(null,-1,-1,-1,-1,"azerty",null)]
        //public void GetFormations_PasseDesParamsInvalides_RetourneZeroFormation(bool? asc, int? numPage, int? parPAge, int? idAgence, int? statutFormation, string texte, string tri)
        //{
        //    // Arrange
        //    FormationService formationService = new FormationService(epContext);

        //    // Act
        //    IEnumerable<FormationDTO> formationDTOs = formationService.GetFormations(asc, numPage, parPAge, idAgence, statutFormation,texte,tri);

        //    // Assert
        //    Assert.AreEqual(0, formationDTOs.Count());                  
        //}
       
    }
}