// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : UploadReportController.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : DiscImageChef Server.
//
// --[ Description ] ----------------------------------------------------------
//
//     Handles report uploads.
//
// --[ License ] --------------------------------------------------------------
//
//     This library is free software; you can redistribute it and/or modify
//     it under the terms of the GNU Lesser General Public License as
//     published by the Free Software Foundation; either version 2.1 of the
//     License, or (at your option) any later version.
//
//     This library is distributed in the hope that it will be useful, but
//     WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//     Lesser General Public License for more details.
//
//     You should have received a copy of the GNU Lesser General Public
//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2019 Natalia Portillo
// ****************************************************************************/

using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using DiscImageChef.CommonTypes.Metadata;
using DiscImageChef.Dto;
using DiscImageChef.Server.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json;

namespace DiscImageChef.Server.Controllers
{
    public class UpdateController : Controller
    {
        private readonly DicServerContext _ctx;

        public UpdateController(DicServerContext ctx)
        {
            _ctx = ctx;
        }

        /// <summary>
        ///     Receives a report from DiscImageChef.Core, verifies it's in the correct format and stores it on the server
        /// </summary>
        /// <returns>HTTP response</returns>
        [Route("api/update")]
        [HttpGet]
        public ActionResult Update(long timestamp)
        {
            var sync = new SyncDto();
            var lastSync = DateHandlers.UnixToDateTime(timestamp);

            sync.UsbVendors = new List<UsbVendorDto>();
            foreach (var vendor in _ctx.UsbVendors.Where(v => v.ModifiedWhen > lastSync))
                sync.UsbVendors.Add(new UsbVendorDto {VendorId = (ushort) vendor.VendorId, Vendor = vendor.Vendor});

            sync.UsbProducts = new List<UsbProductDto>();
            foreach (var product in _ctx.UsbProducts.Include(p => p.Vendor).Where(p => p.ModifiedWhen > lastSync))
                sync.UsbProducts.Add(new UsbProductDto
                {
                    Id = product.Id,
                    Product = product.Product,
                    ProductId = (ushort) product.ProductId,
                    VendorId = (ushort) product.Vendor.VendorId
                });

            sync.Offsets = new List<CdOffsetDto>();
            foreach (var offset in _ctx.CdOffsets.Where(o => o.ModifiedWhen > lastSync))
                sync.Offsets.Add(new CdOffsetDto(offset, offset.Id));

            sync.Devices = new List<DeviceDto>();
            foreach (var device in _ctx.Devices.Where(d => d.ModifiedWhen > lastSync).ToList())
                sync.Devices.Add(new
                    DeviceDto(
                        JsonConvert.DeserializeObject<DeviceReportV2>(JsonConvert.SerializeObject(device,
                            Formatting.None,
                            new JsonSerializerSettings {ReferenceLoopHandling = ReferenceLoopHandling.Ignore})),
                        device.Id, device.OptimalMultipleSectorsRead));

            var js = JsonSerializer.Create();
            var sw = new StringWriter();
            js.Serialize(sw, sync);

            return new ContentResult
            {
                StatusCode = (int) HttpStatusCode.OK,
                Content = sw.ToString(),
                ContentType = "application/json"
            };
        }
    }
}