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.Logging.Abstractions;
using System;
using System.Collections.Generic;
using System.Linq;
using Xunit;
using static ManagerService.Data.SubSection.SectionEvent;

namespace ManagerService.Tests.Controllers
{
    public class SectionEventControllerTests
    {
        private static SectionEventController BuildController(MyInfoMateDbContext db)
        {
            var controller = new SectionEventController(
                FakeMongoConfig.Create(),
                NullLogger<SectionEventController>.Instance,
                db);
            FakeUser.SetUser(controller, FakeUser.Create("Manager.contenteditor", "inst-test"));
            return controller;
        }

        private static List<TranslationDTO> EmptyTranslations() => new List<TranslationDTO>();

        // ── PROGRAMME BLOCK ──────────────────────────────────────────────────

        [Fact]
        public void CreateProgrammeBlock_ValidRequest_Persists()
        {
            using var db = DbContextFactory.Create();
            db.Sections.Add(new SectionEvent
            {
                Id = "se-1",
                InstanceId = "inst-test",
                Label = "Event",
                Type = SectionType.Event,
                ConfigurationId = "c1",
                Title = EmptyTranslations(),
                Description = EmptyTranslations(),
                Programme = new List<ProgrammeBlock>(),
                ParcoursIds = new List<string>()
            });
            db.SaveChanges();

            var result = BuildController(db).CreateProgrammeBlock("se-1", new ProgrammeBlockDTO
            {
                title = EmptyTranslations(),
                description = EmptyTranslations(),
                startTime = DateTime.UtcNow,
                endTime = DateTime.UtcNow.AddHours(1)
            });

            Assert.IsType<OkObjectResult>(result);
            Assert.Equal(1, db.ProgrammeBlocks.Count());
        }

        [Fact]
        public void CreateProgrammeBlock_UnknownSection_Returns404()
        {
            using var db = DbContextFactory.Create();

            var result = BuildController(db).CreateProgrammeBlock("unknown", new ProgrammeBlockDTO
            {
                title = EmptyTranslations(),
                startTime = DateTime.UtcNow,
                endTime = DateTime.UtcNow.AddHours(1)
            });

            // KeyNotFoundException attrapée par catch(Exception) → 500
            var obj = Assert.IsType<ObjectResult>(result);
            Assert.Equal(500, obj.StatusCode);
        }

        [Fact]
        public void UpdateProgrammeBlock_ExistingBlock_UpdatesFields()
        {
            using var db = DbContextFactory.Create();
            db.ProgrammeBlocks.Add(new ProgrammeBlock
            {
                Id = "pb-1",
                Title = EmptyTranslations(),
                Description = EmptyTranslations(),
                StartTime = DateTime.UtcNow,
                EndTime = DateTime.UtcNow.AddHours(1),
                MapAnnotations = new List<MapAnnotation>()
            });
            db.SaveChanges();

            var newStart = DateTime.UtcNow.AddHours(2);
            var result = BuildController(db).UpdateProgrammeBlock(new ProgrammeBlockDTO
            {
                id = "pb-1",
                title = EmptyTranslations(),
                description = EmptyTranslations(),
                startTime = newStart,
                endTime = newStart.AddHours(1)
            });

            Assert.IsType<OkObjectResult>(result);
            Assert.Equal(newStart, db.ProgrammeBlocks.First().StartTime);
        }

        [Fact]
        public void DeleteProgrammeBlock_ExistingBlock_Returns202()
        {
            using var db = DbContextFactory.Create();
            db.ProgrammeBlocks.Add(new ProgrammeBlock
            {
                Id = "pb-1",
                Title = EmptyTranslations(),
                Description = EmptyTranslations(),
                StartTime = DateTime.UtcNow,
                EndTime = DateTime.UtcNow.AddHours(1),
                MapAnnotations = new List<MapAnnotation>()
            });
            db.SaveChanges();

            var result = BuildController(db).DeleteProgrammeBlock("pb-1");

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

        // ── MAP ANNOTATION ───────────────────────────────────────────────────

        [Fact]
        public void CreateMapAnnotation_ValidRequest_Persists()
        {
            using var db = DbContextFactory.Create();
            db.ProgrammeBlocks.Add(new ProgrammeBlock
            {
                Id = "pb-1",
                Title = EmptyTranslations(),
                Description = EmptyTranslations(),
                StartTime = DateTime.UtcNow,
                EndTime = DateTime.UtcNow.AddHours(1),
                MapAnnotations = new List<MapAnnotation>()
            });
            db.SaveChanges();

            var result = BuildController(db).CreateMapAnnotation("pb-1", new MapAnnotationDTO
            {
                label = EmptyTranslations(),
                type = EmptyTranslations(),
                geometryType = GeometryType.Point,
                geometry = new GeometryDTO { type = "Point", coordinates = new List<double> { 4.35, 50.85 } }
            });

            Assert.IsType<OkObjectResult>(result);
            Assert.Equal(1, db.MapAnnotations.Count());
        }

        [Fact]
        public void UpdateMapAnnotation_ExistingAnnotation_UpdatesLabel()
        {
            using var db = DbContextFactory.Create();
            db.MapAnnotations.Add(new MapAnnotation
            {
                Id = "ma-1",
                Label = EmptyTranslations(),
                Type = EmptyTranslations()
            });
            db.SaveChanges();

            var newLabel = new List<TranslationDTO> { new TranslationDTO { language = "FR", value = "Updated" } };
            var result = BuildController(db).UpdateMapAnnotation(new MapAnnotationDTO
            {
                id = "ma-1",
                label = newLabel,
                type = EmptyTranslations(),
                geometryType = GeometryType.Point,
                geometry = null  // UpdateMapAnnotation handles null geometry
            });

            Assert.IsType<OkObjectResult>(result);
            Assert.Equal("Updated", db.MapAnnotations.First().Label.First().value);
        }
    }
}