using ManagerService.Data;
using ManagerService.Data.SubSection;
using ManagerService.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using NSwag.Annotations;
using System.Collections.Generic;
using System.Linq;
using System;
using ManagerService.DTOs;
using ManagerService.Helpers;

namespace ManagerService.Controllers
{
    [Authorize] // TODO Add ROLES (Roles = "Admin")
    [ApiController, Route("api/[controller]")]
    [OpenApiTag("Section agenda", Description = "Section agenda management")]
    public class SectionAgendaController : ControllerBase
    {
        private readonly MyInfoMateDbContext _myInfoMateDbContext;

        private readonly ILogger<SectionAgendaController> _logger;
        private readonly IConfiguration _configuration;
        IHexIdGeneratorService idService = new HexIdGeneratorService();

        public SectionAgendaController(IConfiguration configuration, ILogger<SectionAgendaController> logger, MyInfoMateDbContext myInfoMateDbContext)
        {
            _logger = logger;
            _configuration = configuration;
            _myInfoMateDbContext = myInfoMateDbContext;
        }

        /// <summary>
        /// Get all event from section
        /// </summary>
        /// <param name="sectionAgendaId">Section id</param>
        [AllowAnonymous]
        [ProducesResponseType(typeof(List<EventAgendaDTO>), 200)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpGet("{sectionAgendaId}/events")]
        public ObjectResult GetAllEventAgendaFromSection(string sectionAgendaId)
        {
            try
            {
                SectionAgenda sectionAgenda = _myInfoMateDbContext.Sections.OfType<SectionAgenda>().Include(sa => sa.EventAgendas).ThenInclude(sa => sa.Resource).FirstOrDefault(sa => sa.Id == sectionAgendaId);

                if (sectionAgenda == null)
                    throw new KeyNotFoundException("Section agenda does not exist");

                /*List<ProgrammeBlock> programmeBlocks = new List<ProgrammeBlock>();
                foreach (var program in sectionEvent.Programme)
                {
                    foreach (var mapAnnotation in program.MapAnnotations) {
                        var resource = _myInfoMateDbContext.Resources.FirstOrDefault(r => r.Id == mapAnnotation.IconResourceId);
                        if (resource != null)
                        {
                            mapAnnotation.IconResource = resource; // TO check.. use DTO instead ? 
                        }
                    }
                }*/

                return new OkObjectResult(sectionAgenda.EventAgendas.Select(ea => ea.ToDTO()));
            }
            catch (KeyNotFoundException ex)
            {
                return new NotFoundObjectResult(ex.Message) { };
            }
            catch (Exception ex)
            {
                return new ObjectResult(ex.Message) { StatusCode = 500 };
            }
        }

        /// <summary>
        /// Create new event
        /// </summary>
        /// <param name="sectionAgendaId">Section agenda Id</param>  
        /// <param name="eventAgendaDTO">EventAgenda</param>  
        [ProducesResponseType(typeof(EventAgendaDTO), 200)]
        [ProducesResponseType(typeof(string), 400)]
        [ProducesResponseType(typeof(string), 409)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpPost("{sectionAgendaId}/event")]
        public ObjectResult CreateEventAgenda(string sectionAgendaId, [FromBody] EventAgendaDTO eventAgendaDTO)
        {
            try
            {
                if (sectionAgendaId == null)
                    throw new ArgumentNullException("Section param is null");

                if (eventAgendaDTO == null)
                    throw new ArgumentNullException("EventAgenda param is null");

                var existingSection = _myInfoMateDbContext.Sections.OfType<SectionAgenda>().Include(sa => sa.EventAgendas).FirstOrDefault(sa => sa.Id == sectionAgendaId);
                if (existingSection == null)
                    throw new KeyNotFoundException("Section agenda does not exist");

                EventAgenda eventAgenda = new EventAgenda().FromDTO(eventAgendaDTO);
                _myInfoMateDbContext.EventAgendas.Add(eventAgenda);
                _myInfoMateDbContext.SaveChanges();

                return new OkObjectResult(eventAgenda.ToDTO());
            }
            catch (ArgumentNullException ex)
            {
                return new BadRequestObjectResult(ex.Message) { };
            }
            catch (InvalidOperationException ex)
            {
                return new ConflictObjectResult(ex.Message) { };
            }
            catch (Exception ex)
            {
                return new ObjectResult(ex.Message) { StatusCode = 500 };
            }
        }

        /// <summary>
        /// Update an event agenda
        /// </summary>
        /// <param name="eventAgendaDTO">EventAgenda to update</param>  
        [ProducesResponseType(typeof(EventAgendaDTO), 200)]
        [ProducesResponseType(typeof(string), 400)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpPut("event")]
        public ObjectResult UpdateEventAgenda([FromBody] EventAgendaDTO eventAgendaDTO)
        {
            try
            {
                if (eventAgendaDTO == null)
                    throw new ArgumentNullException("EventAgenda param is null");

                var existing = _myInfoMateDbContext.EventAgendas.FirstOrDefault(ea => ea.Id == eventAgendaDTO.Id);
                if (existing == null)
                    throw new KeyNotFoundException("EventAgenda does not exist");

                existing.Label = eventAgendaDTO.Label;
                existing.Description = eventAgendaDTO.Description;
                existing.Type = eventAgendaDTO.Type;
                existing.DateAdded = eventAgendaDTO.DateAdded;
                existing.DateFrom = eventAgendaDTO.DateFrom;
                existing.DateTo = eventAgendaDTO.DateTo;
                existing.Website = eventAgendaDTO.Website;
                existing.ResourceId = eventAgendaDTO.ResourceId;
                existing.Phone = eventAgendaDTO.Phone;
                existing.Email = eventAgendaDTO.Email;
                existing.SectionAgendaId = eventAgendaDTO.SectionAgendaId;
                existing.SectionEventId = eventAgendaDTO.SectionEventId;

                if (eventAgendaDTO.Address != null)
                {
                    existing.Address = new EventAddress
                    {
                        Address = eventAgendaDTO.Address.Address,
                        StreetNumber = eventAgendaDTO.Address.StreetNumber,
                        StreetName = eventAgendaDTO.Address.StreetName,
                        City = eventAgendaDTO.Address.City,
                        State = eventAgendaDTO.Address.State,
                        PostCode = eventAgendaDTO.Address.PostCode,
                        Country = eventAgendaDTO.Address.Country,
                        Geometry = eventAgendaDTO.Address.Geometry?.FromDto(),
                        PolyColor = eventAgendaDTO.Address.PolyColor,
                        Zoom = eventAgendaDTO.Address.Zoom
                    };
                }

                _myInfoMateDbContext.SaveChanges();

                return new OkObjectResult(existing.ToDTO());
            }
            catch (ArgumentNullException ex)
            {
                return new BadRequestObjectResult(ex.Message) { };
            }
            catch (KeyNotFoundException ex)
            {
                return new NotFoundObjectResult(ex.Message) { };
            }
            catch (Exception ex)
            {
                return new ObjectResult(ex.Message) { StatusCode = 500 };
            }
        }

        /// <summary>
        /// Delete an eventAgenda
        /// </summary>
        /// <param name="eventAgendaId">Id of the eventAgenda to delete</param>  
        [ProducesResponseType(typeof(string), 202)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpDelete("event/{eventAgendaId}")]
        public ObjectResult DeleteEventAgenda(int eventAgendaId)
        {
            try
            {
                var eventAgenda = _myInfoMateDbContext.EventAgendas.FirstOrDefault(ea => ea.Id == eventAgendaId);
                if (eventAgenda == null)
                    throw new KeyNotFoundException("EventAgenda does not exist");

                _myInfoMateDbContext.Remove(eventAgenda);
                _myInfoMateDbContext.SaveChanges();

                return new ObjectResult("The eventAgenda has been deleted") { StatusCode = 202 };
            }
            catch (ArgumentNullException ex)
            {
                return new BadRequestObjectResult(ex.Message) { };
            }
            catch (KeyNotFoundException ex)
            {
                return new NotFoundObjectResult(ex.Message) { };
            }
            catch (Exception ex)
            {
                return new ObjectResult(ex.Message) { StatusCode = 500 };
            }
        }
    }
}