using AutoMapper;
using FluentValidation;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using PARR.API.Contracts.V1;
using PARR.API.Contracts.V1.Requests;
using PARR.API.Contracts.V1.Requests.Queries;
using PARR.API.Contracts.V1.Responses;
using PARR.API.Contracts.V1.Responses.Base;
using PARR.API.Controllers.V1.Base;
using PARR.API.Extensions;
using PARR.API.Services.Interfaces;
using PARR.Constants;
using PARR.DAL.DomainModels;
using PARR.DAL.Models;
using PARR.DAL.Services.Interfaces;

namespace PARR.API.Controllers.V1
{
    /// <summary>
    /// Управление работами
    /// </summary>
    [Authorize(Roles = ParrRoles.Administrator.Role)]
    public class WorkController : BaseApiController
    {
        private readonly ILogger<WorkController> logger;
        private readonly IMapper mapper;
        private readonly IWorkService workService;
        private readonly IValidator<WorkRequest> validator;
        private readonly IUriService uriService;

        public WorkController(
            ILogger<WorkController> logger,
            IMapper mapper,
            IWorkService workService,
            IValidator<WorkRequest> validator,
            IUriService uriService
            )
        {
            this.logger = logger;
            this.mapper = mapper;
            this.workService = workService;
            this.validator = validator;
            this.uriService = uriService;
        }


        /// <summary>
        /// Список видов работ постранично
        /// </summary>
        /// <param name="paginationQuery"></param>
        /// <returns></returns>
        [HttpGet(ApiRoutes.Work.GetAll)]
        public async Task<IActionResult> GetAll([FromQuery] PaginationQuery paginationQuery)
        {
            var paginationFilter = mapper.Map<PaginationFilter>(paginationQuery);

            IQueryable<Work> query = workService.Get()
                                        .OrderBy(t => t.Name);

            var works = await workService.GetPage(query, paginationFilter).ToListAsync();

            if (!works.Any())
                return NoContent();

            var workResponse = mapper.Map<List<WorkResponse>>(works);
            var paginationResponse = new PagedResponse<WorkResponse>(workResponse, true).GetPaginatedProps(paginationFilter, query);

            return Ok(paginationResponse);
        }


        /// <summary>
        /// Создать вид работы
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost(ApiRoutes.Work.Create)]
        public async Task<IActionResult> Create([FromBody] WorkRequest request)
        {
            var resultValidate = await validator.ValidateAsync(request);
            if (!resultValidate.IsValid)
                return BadRequest(new Response(resultValidate.Errors));

            var existName = await workService.Get().FirstOrDefaultAsync(t => t.Name == request.Name);
            if (existName != null)
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { FieldName = nameof(request.Name), Message = $"Вид работы с именем \"{request.Name}\" уже существует." } }));

            var work = new Work
            {
                Id = Guid.NewGuid(),
                Name = request.Name,
                EsppId = request.EsppId,
                TnkId = request.TnkId,
            };

            if (!await workService.CreateAsync(work) || !await workService.CommitAsync())
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = "Ошибка при создании вида работ." } }));

            logger.LogInformation($"Пользователь {User.Identity?.Name} добавил вид работ: {work.Name}, {work.EsppId}, {work.TnkId}");

            var locationUri = uriService.GetUri(ApiRoutes.Work.Get, ApiRoutes.Work.getParam, work.Id);

            return Created(locationUri, new Response<WorkResponse>(mapper.Map<WorkResponse>(work), true));
        }


        /// <summary>
        /// Получить работу по id
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        [HttpGet(ApiRoutes.Work.Get)]
        public async Task<IActionResult> GetById([FromRoute] Guid id)
        {
            var work = await workService.Get()
                                .FirstOrDefaultAsync(t => t.Id == id);

            if (work == null)
                return NotFound();

            var response = mapper.Map<WorkResponse>(work);

            return Ok(new Response<WorkResponse>(response, true));
        }


        /// <summary>
        /// Обновить вид работ
        /// </summary>
        /// <param name="id"></param>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPut(ApiRoutes.Work.Update)]
        public async Task<IActionResult> Update([FromRoute] Guid id, [FromBody] WorkRequest request)
        {
            var resultValidate = await validator.ValidateAsync(request);
            if (!resultValidate.IsValid)
                return BadRequest(new Response(resultValidate.Errors));

            var orig = await workService.Get()
                                .FirstOrDefaultAsync(t => t.Id == id);

            if (orig == null)
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = $"Ошибка при изменении вида работ. Не найдена работа имющая Id {id}" } }));

            orig.Name = request.Name;
            orig.EsppId = request.EsppId;
            orig.TnkId = request.TnkId;

            if (!await workService.CommitAsync())
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = "Ошибка записи в базу данных изменений вида работ." } }));

            logger.LogInformation($"Пользователь {User.Identity?.Name} обновил работу: {orig.Id}, {orig.Name}, {orig.EsppId}, {orig.TnkId}");

            return Ok(new Response<WorkResponse>(mapper.Map<WorkResponse>(orig), true));
        }


        /// <summary>
        /// Удалить вид работ
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        [HttpDelete(ApiRoutes.Work.Delete)]
        public async Task<IActionResult> Delete([FromRoute] Guid id)
        {
            var work = await workService.GetAsync(id);

            if (work == null)
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = $"Ошибка при удалении вида работ. Не найдена работа с id: {id}" } }));

            if (!workService.Delete(work) || !await workService.CommitAsync())
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = $"Ошибка при удалении вида работ." } }));

            logger.LogInformation($"Пользователь {User.Identity?.Name} удалил вид работ: {work.Id}, {work.Name}, {work.EsppId}, {work.TnkId}");

            return NoContent();
        }

    }
}