// /***************************************************************************
// 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;
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
    {
        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();
            DateTime lastSync = DateHandlers.UnixToDateTime(timestamp);

            sync.UsbVendors = new List<UsbVendorDto>();

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

            sync.UsbProducts = new List<UsbProductDto>();

            foreach(UsbProduct 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 = product.ProductId,
                    VendorId = product.Vendor.VendorId
                });

            sync.Offsets = new List<CdOffsetDto>();

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

            sync.Devices = new List<DeviceDto>();

            foreach(Device 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));

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

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