using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using AutoMapper;
using AutoMapper.QueryableExtensions;
using InventoryTraker.Web.ActionResults;
using InventoryTraker.Web.Core;
using InventoryTraker.Web.Data;
using InventoryTraker.Web.Models;

namespace InventoryTraker.Web.Controllers
{
	public class TransactionController : ControllerBase
	{
		private readonly AppDbContext _context;

		public TransactionController(AppDbContext context)
		{
			_context = context;
		}

		public ActionResult Index()
		{
			return View();
		}

		public JsonResult All()
		{
			var viewModels =
				_context.Transactions
				.ProjectTo<TransactionViewModel>()
				.ToArray();

			return BetterJson(viewModels);
		}

		public JsonResult GetTransactions(int pageNumber, int pageSize)
		{
			var viewModels =
				_context.Transactions
				.OrderByDescending(t => t.Timestamp)
				.Skip((pageNumber - 1) * pageSize)
				.Take(pageSize)
				.ProjectTo<TransactionViewModel>()
				.ToArray();

			var count = _context.Transactions.Count();
			return BetterJson(new {totalItems = count, transactions = viewModels});
		}
	}
}