using Manager.DTOs;
using ManagerService.Controllers;
using ManagerService.Data;
using ManagerService.Data.SubSection;
using ManagerService.DTOs;
using ManagerService.Tests.Infrastructure;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging.Abstractions;
using Xunit;

namespace ManagerService.Tests.Controllers
{
    public class SectionQuizControllerTests
    {
        private SectionQuizController BuildController(MyInfoMateDbContext db)
        {
            var cfg = new ConfigurationBuilder().Build();
            return new SectionQuizController(cfg, NullLogger<SectionQuizController>.Instance, db);
        }

        private SectionQuiz MakeQuizSection(string id = "sq1")
        {
            return new SectionQuiz
            {
                Id = id,
                Label = "Quiz test",
                Title = new List<TranslationDTO>(),
                Description = new List<TranslationDTO>(),
                ConfigurationId = "conf1",
                InstanceId = "inst1",
                Type = SectionType.Quiz,
                QuizQuestions = new List<QuizQuestion>(),
                QuizBadLevel = new List<TranslationAndResourceDTO>(),
                QuizMediumLevel = new List<TranslationAndResourceDTO>(),
                QuizGoodLevel = new List<TranslationAndResourceDTO>(),
                QuizGreatLevel = new List<TranslationAndResourceDTO>()
            };
        }

        private QuizQuestion MakeQuestion(string sectionId, int order, string? label = null)
        {
            return new QuizQuestion
            {
                SectionQuizId = sectionId,
                Order = order,
                Label = new List<TranslationAndResourceDTO>(),
                Responses = new List<ResponseDTO>()
            };
        }

        // ── CREATE ───────────────────────────────────────────────────────────

        [Fact]
        public void Create_AutoSetsOrderToCount()
        {
            using var db = DbContextFactory.Create();
            var section = MakeQuizSection();
            db.Sections.Add(section);
            // 2 questions déjà dans la section
            db.QuizQuestions.AddRange(
                MakeQuestion("sq1", 0),
                MakeQuestion("sq1", 1)
            );
            db.SaveChanges();

            var dto = new QuestionDTO
            {
                label = new List<TranslationAndResourceDTO>(),
                responses = new List<ResponseDTO>()
            };

            var result = BuildController(db).Create("sq1", dto);

            var ok = Assert.IsType<OkObjectResult>(result);
            // La nouvelle question doit avoir l'ordre = 2 (count avant ajout)
            var question = db.QuizQuestions.OrderByDescending(q => q.Order).First();
            Assert.Equal(2, question.Order);
        }

        [Fact]
        public void Create_UnknownSection_Returns500()
        {
            using var db = DbContextFactory.Create();

            var dto = new QuestionDTO
            {
                label = new List<TranslationAndResourceDTO>(),
                responses = new List<ResponseDTO>()
            };

            var result = BuildController(db).Create("unknown", dto);

            var status = Assert.IsType<ObjectResult>(result);
            Assert.Equal(500, status.StatusCode);
        }

        // ── UPDATE / REORDER ─────────────────────────────────────────────────

        [Fact]
        public void Update_ChangeOrder_ReordersAllQuestionsFrom0()
        {
            using var db = DbContextFactory.Create();
            var section = MakeQuizSection();
            db.Sections.Add(section);
            var q0 = MakeQuestion("sq1", 0);
            var q1 = MakeQuestion("sq1", 1);
            var q2 = MakeQuestion("sq1", 2);
            db.QuizQuestions.AddRange(q0, q1, q2);
            db.SaveChanges();

            // Déplace q2 (order=2) à la position 0
            var dto = new QuestionDTO
            {
                id = q2.Id,
                order = 0,
                label = new List<TranslationAndResourceDTO>(),
                responses = new List<ResponseDTO>()
            };
            BuildController(db).Update(dto);

            var questions = db.QuizQuestions.OrderBy(q => q.Order).ToList();
            // Après réordonnancement : q2 doit être en position 0
            Assert.Equal(q2.Id, questions[0].Id);
            // Les ordres doivent être continus depuis 0
            Assert.Equal(new[] { 0, 1, 2 }, questions.Select(q => q.Order).ToArray());
        }

        [Fact]
        public void Update_SameOrder_UpdatesFieldsWithoutReorder()
        {
            using var db = DbContextFactory.Create();
            var section = MakeQuizSection();
            db.Sections.Add(section);
            var q0 = MakeQuestion("sq1", 0);
            db.QuizQuestions.Add(q0);
            db.SaveChanges();

            var dto = new QuestionDTO
            {
                id = q0.Id,
                order = 0, // même ordre
                label = new List<TranslationAndResourceDTO> { new TranslationAndResourceDTO { language = "fr", value = "Nouvelle question" } },
                responses = new List<ResponseDTO>()
            };
            BuildController(db).Update(dto);

            // Le label est mis à jour (via l'objet retourné — la valeur est dans le DTO en retour)
            // On vérifie juste que ça s'est exécuté sans erreur
            Assert.Equal(1, db.QuizQuestions.Count());
        }

        [Fact]
        public void Update_UnknownQuestion_Returns404()
        {
            using var db = DbContextFactory.Create();

            var dto = new QuestionDTO { id = 9999, order = 0, label = new List<TranslationAndResourceDTO>(), responses = new List<ResponseDTO>() };

            var result = BuildController(db).Update(dto);

            Assert.IsType<NotFoundObjectResult>(result);
        }

        // ── DELETE ───────────────────────────────────────────────────────────

        [Fact]
        public void Delete_ExistingQuestion_Returns202()
        {
            using var db = DbContextFactory.Create();
            var section = MakeQuizSection();
            db.Sections.Add(section);
            var q = MakeQuestion("sq1", 0);
            db.QuizQuestions.Add(q);
            db.SaveChanges();
            var qId = q.Id;

            var result = BuildController(db).Delete(qId);

            var status = Assert.IsType<ObjectResult>(result);
            Assert.Equal(202, status.StatusCode);
            Assert.Equal(0, db.QuizQuestions.Count());
        }

        [Fact]
        public void Delete_UnknownId_Returns404()
        {
            using var db = DbContextFactory.Create();

            var result = BuildController(db).Delete(9999);

            Assert.IsType<NotFoundObjectResult>(result);
        }
    }
}