using CarParkValidationAPI.Datas;
using CarParkValidationAPI.Entities;
using CarParkValidationAPI.Interface;
using CarParkValidationAPI.Models;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace CarParkValidationAPI.Repository
{
	public class ValidationPointRepository : IValidationPoint
	{
		private DataContext _context;

		private readonly AppSettings _appSettings;
		private string _currentUser = "";
		private List<ValidationPointDto> _list = new List<ValidationPointDto>();

		public ValidationPointRepository(
			DataContext context,

			IOptions<AppSettings> appSettings)
		{
			_context = context;
			_appSettings = appSettings.Value;
		}
		public void SetCurrentUser(string username)
		{
			_currentUser = username;
		}
		private ValidationPointDto FillValidationDto(ValidationPoint item)
        {
			ValidationPointDto dto = new ValidationPointDto();
			dto.Active = item.Active;
			dto.Description = item.Description;
			dto.Display = item.DisplayName;
			dto.Id = item.ValidationPointID;
			return dto;
        }

		private ValidationPoint FillValidationModel(ValidationPointDto item, ValidationPoint model)	{

			model.Active = item.Active;
			model.Description = item.Description.Trim();
			if (!string.IsNullOrEmpty(item.Display))
				model.DisplayName = item.Display.Trim();
			if (item.Id > 0)
				model.ValidationPointID = item.Id;
			return model;
		}

		public async Task<ResultModel<List<ValidationPointDto>>> LoadValidationPointAsync(bool onlyActive)
		{
			int statuscode = 0;
			string error = "";
			try
			{
				var it = await _context.Validations.ToListAsync();

				ValidationPointDto dto;
				for (int i = 0; i < it.Count; i++)
				{
					dto = FillValidationDto(it[i]);
					_list.Add(dto);
				}
				_list.Sort((x, y) => x.Description.CompareTo(y.Description));
				statuscode = 1;

			}
			catch (Exception ex)
			{
				error = ex.ToString();
				statuscode = 0;
				throw ex;
			}
			return new ResultModel<List<ValidationPointDto>>()
			{
				Data = _list,
				StatusCode = statuscode,
				Message = error
			};
		}
		public async Task<ResultModel<ValidationPointDto>> LoadValidationPointByIdAsync(int id)
		{
			ValidationPoint result = null;
			int statuscode = 0;
			string error = "";
			ValidationPointDto dto = null;
			try
			{				
				result = await _context.Validations.FindAsync(id);
				dto = FillValidationDto(result);
				//result = _list.Find(x => x.Id == id);
				//var dto = await Task.Run(() => result);
				statuscode = 1;				
			}
			catch (Exception ex)
            {
				error = ex.ToString();
				statuscode = 0;
			}
			return new ResultModel<ValidationPointDto>()
			{
				Data = dto,
				StatusCode = statuscode,
				Message = error
			};
		}
		public async Task<ResultModel<int>> SaveValidationPointAsync(ValidationPointDto item)
		{
			int result = default(int);
			int statuscode = 0;
			string error = "";
			try
			{				
				ValidationPoint model;
				if (item.Id > 0)
				{
					model = await _context.Validations.FindAsync(item.Id);
					model = FillValidationModel(item, model);
					model.LastModified = DateTime.Now;
					model.LastModifiedId = _currentUser;
					await _context.SaveChangesAsync();
					result = item.Id;
				}
				else //new record
				{
					model = new ValidationPoint();
					model.LastModified = DateTime.Now;
					model.LastModifiedId = _currentUser;
					model = FillValidationModel(item, model);
					_context.Validations.Add(model);
					var id = await _context.SaveChangesAsync();
					result = model.ValidationPointID;
					
				}
				statuscode = 1;
			}
			catch (Exception ex)
			{
				error = ex.ToString();
				statuscode = 0;
			}
			//var dto = await Task.Run(() => result);
			return new ResultModel<int>()
			{
				Data = result,
				StatusCode = statuscode,
				Message = error
			};
		}

		public async Task<ResultModel<bool>> DeleteValidationPointAsync(int id)
		{
			bool result = true;
			int statuscode = 0;
			string error = "";
			try
			{
				ValidationPoint model;
				if (id > 0)
				{
					model = await _context.Validations.FindAsync(id);
					model.Active = false;
					//_context.Validations.Remove(model);					
					await _context.SaveChangesAsync();
					statuscode = 1;
				}
			}
			catch (Exception ex)
			{
				error = ex.ToString();
				statuscode = 0;
				throw;
			}
			//var dto = await Task.Run(() => result);
			return new ResultModel<bool>()
			{
				Data = result,
				StatusCode = statuscode,
				Message = error
			};
		}
	}
}