using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Manager.Interfaces.DTO;
using Manager.Interfaces.Models;
using Manager.Services;
using ManagerService.Service.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Mqtt.Client.AspNetCore.Services;
using Newtonsoft.Json;
using NSwag.Annotations;

namespace ManagerService.Controllers
{
    [Authorize] // TODO Add ROLES (Roles = "Admin")
    [ApiController, Route("api/[controller]")]
    [OpenApiTag("Configuration", Description = "Configuration management")]
    public class ConfigurationController : ControllerBase
    {
        private ConfigurationDatabaseService _configurationService;
        private readonly ILogger<ConfigurationController> _logger;

        public ConfigurationController(ILogger<ConfigurationController> logger, ConfigurationDatabaseService configurationService)
        {
            _logger = logger;
            _configurationService = configurationService;
        }

        /// <summary>
        /// Get a list of all configuration (summary)
        /// </summary>
        [AllowAnonymous]
        [ProducesResponseType(typeof(List<ConfigurationDTO>), 200)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpGet]
        public ObjectResult Get()
        {
            try
            {
                List<Configuration> configurations = _configurationService.GetAll();

                return new OkObjectResult(configurations.Select(r => r.ToDTO()));
            }
            catch (Exception ex)
            {
                return new ObjectResult(ex.Message) { StatusCode = 500 };
            }
        }


        /// <summary>
        /// Get a specific display configuration 
        /// </summary>
        /// <param name="id">id configuration</param>  
        [AllowAnonymous]
        [ProducesResponseType(typeof(ConfigurationDTO), 200)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpGet("{id}")]
        public ObjectResult GetDetail(string id)
        {
            try
            {
                Configuration configuration = _configurationService.GetById(id);

                if (configuration == null)
                    throw new KeyNotFoundException("This configuration was not found");

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

        /// <summary>
        /// Create a new configuration
        /// </summary>
        /// <param name="newConfiguration">New configuration info</param>  
        [ProducesResponseType(typeof(ConfigurationDTO), 200)]
        [ProducesResponseType(typeof(string), 400)]
        [ProducesResponseType(typeof(string), 409)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpPost]
        public ObjectResult Create([FromBody] ConfigurationDTO newConfiguration)
        {
            try
            {
                if (newConfiguration == null)
                    throw new ArgumentNullException("Configuration param is null");

                // Todo add some verification ? 
                Configuration configuration = new Configuration();
                configuration.Label = newConfiguration.Label;
                configuration.PrimaryColor = newConfiguration.PrimaryColor;
                configuration.SecondaryColor = newConfiguration.SecondaryColor;
                configuration.Languages = new List<string> { "FR", "NL", "EN", "DE" }; // by default all languages
                configuration.DateCreation = DateTime.Now;

                Configuration configurationCreated = _configurationService.Create(configuration);

                return new OkObjectResult(configurationCreated.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 a configuration
        /// </summary>
        /// <param name="updatedConfiguration">Configuration to update</param>  
        [ProducesResponseType(typeof(ConfigurationDTO), 200)]
        [ProducesResponseType(typeof(string), 400)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpPut]
        public ObjectResult Update([FromBody] ConfigurationDTO updatedConfiguration)
        {
            try
            {
                if (updatedConfiguration == null)
                    throw new ArgumentNullException("configuration param is null");

                Configuration configuration = _configurationService.GetById(updatedConfiguration.Id);

                if (configuration == null)
                    throw new KeyNotFoundException("Configuration does not exist");

                // Todo add some verification ? 
                configuration.Label = updatedConfiguration.Label;
                configuration.PrimaryColor = updatedConfiguration.PrimaryColor;
                configuration.SecondaryColor = updatedConfiguration.SecondaryColor;
                configuration.Languages = updatedConfiguration.Languages;

                Configuration configurationModified = _configurationService.Update(updatedConfiguration.Id, configuration);

                MqttClientService.PublishMessage($"config/{configurationModified.Id}", JsonConvert.SerializeObject(new PlayerMessageDTO() { configChanged = true }));

                return new OkObjectResult(configurationModified.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 a configuration
        /// </summary>
        /// <param name="id">Id of configuration to delete</param>  
        [ProducesResponseType(typeof(string), 202)]
        [ProducesResponseType(typeof(string), 400)]
        [ProducesResponseType(typeof(string), 404)]
        [ProducesResponseType(typeof(string), 500)]
        [HttpDelete("{id}")]
        public ObjectResult Delete(string id)
        {
            try
            {
                if (id == null)
                    throw new ArgumentNullException("Configuration param is null");

                if (!_configurationService.IsExist(id))
                    throw new KeyNotFoundException("Configuration does not exist");

                _configurationService.Remove(id);

                MqttClientService.PublishMessage($"config/{id}", JsonConvert.SerializeObject(new PlayerMessageDTO() { configChanged = true, isDeleted = true }));

                return new ObjectResult("The configuration 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 };
            }
        }
    }
}