using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace TestTask.Controllers
{
    public class TaskController : ApiController
    {
        private DbClassesDataContext dbContext { get; set; }

        public TaskController()
        {
            dbContext = new DbClassesDataContext();
        }

        [HttpGet]
        public IHttpActionResult FetchAll()
        {
            return Json(dbContext.Tasks);
        }

        [HttpPost]
        public IHttpActionResult CreateNew(int? taskType, string taskName = null)
        {
            if (taskName != String.Empty && taskName != null)
            {
                if (taskType.HasValue)
                {
                    if (taskType >= 0 && taskType < 4)
                    {
                        var task = new Task
                        {
                            name = taskName,
                            type = taskType.Value,
                            done_percent = 0,
                            creation_date = DateTime.Now,
                            last_date = DateTime.Now
                        };

                        dbContext.Tasks.InsertOnSubmit(task);
                        dbContext.SubmitChanges();

                        return Json(new Models.Message
                        {
                            Id = 0,
                            Text = "The new task was created.",
                            Time = DateTime.Now
                        });
                    }
                    else
                    {
                        return Json(new Models.Error
                        {
                            Id = 2,
                            Message = "The task type can have only values in range: [0, 3].",
                            Time = DateTime.Now
                        });
                    }
                }
                else
                {
                    return Json(new Models.Error
                    {
                        Id = 1,
                        Message = "The task type can't be null.",
                        Time = DateTime.Now
                    });
                }
            }
            else
                return Json(new Models.Error
                {
                    Id = 0,
                    Message = "The task name was empty.",
                    Time = DateTime.Now
                });
        }
    }
}