/*
 *
 * (c) Copyright Ascensio System Limited 2010-2018
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that 
 * Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/


using ASC.CRM.Core;
using ASC.CRM.Core.Dao;
using ASC.CRM.Core.Entities;
using ASC.CRM.Resources;
using ASC.MessagingSystem;
using ASC.Web.Core;
using ASC.Web.Core.Files;
using ASC.Web.Core.Utility;
using ASC.Web.CRM.Configuration;
using ASC.Web.CRM.Core;
using ASC.Web.Studio.Core;
using Autofac;
using Microsoft.AspNetCore.Http;
using System;


namespace ASC.Web.CRM.Classes
{
    public class ContactPhotoHandler : IFileUploadHandler
    {
        public ContactPhotoHandler(SetupInfo setupInfo,
                                   CRMSecurity cRMSecurity,
                                   FileSizeComment fileSizeComment,
                                   WebItemSecurity webItemSecurity,
                                   MessageTarget messageTarget)
        {
            SetupInfo = setupInfo;
            FileSizeComment = fileSizeComment;
            CRMSecurity = cRMSecurity;
            WebItemSecurity = webItemSecurity;
            MessageTarget = messageTarget;
        }

        public MessageTarget MessageTarget { get; }
        public WebItemSecurity WebItemSecurity { get; }
        public FileSizeComment FileSizeComment { get; }
        public CRMSecurity CRMSecurity { get; }
        public SetupInfo SetupInfo { get; }

        public FileUploadResult ProcessUpload(HttpContext context)
        {
            if (!WebItemSecurity.IsAvailableForMe(ProductEntryPoint.ID))
                throw CRMSecurity.CreateSecurityException();

            var contactId = Convert.ToInt32(context.Request["contactID"]);
            Contact contact = null;
            if (contactId != 0)
            {
                using (var scope = DIHelper.Resolve())
                {
                    contact = scope.Resolve<DaoFactory>().ContactDao.GetByID(contactId);
                    if (!CRMSecurity.CanEdit(contact))
                        throw CRMSecurity.CreateSecurityException();
                }
            }

            var fileUploadResult = new FileUploadResult();

            if (!FileToUpload.HasFilesToUpload(context)) return fileUploadResult;

            var file = new FileToUpload(context);

            if (String.IsNullOrEmpty(file.FileName) || file.ContentLength == 0)
                throw new InvalidOperationException(CRMErrorsResource.InvalidFile);

            if (0 < SetupInfo.MaxImageUploadSize && SetupInfo.MaxImageUploadSize < file.ContentLength)
            {
                fileUploadResult.Success = false;
                fileUploadResult.Message = FileSizeComment.GetFileImageSizeNote(CRMCommonResource.ErrorMessage_UploadFileSize, false).HtmlEncode();
                return fileUploadResult;
            }

            if (FileUtility.GetFileTypeByFileName(file.FileName) != FileType.Image)
            {
                fileUploadResult.Success = false;
                fileUploadResult.Message = CRMJSResource.ErrorMessage_NotImageSupportFormat.HtmlEncode();
                return fileUploadResult;
            }

            var uploadOnly = Convert.ToBoolean(context.Request["uploadOnly"]);
            var tmpDirName = Convert.ToString(context.Request["tmpDirName"]);

            try
            {
                ContactPhotoManager.PhotoData photoData;
                if (contactId != 0)
                {
                    photoData = ContactPhotoManager.UploadPhoto(file.InputStream, contactId, uploadOnly);
                }
                else
                {
                    if (String.IsNullOrEmpty(tmpDirName) || tmpDirName == "null")
                    {
                        tmpDirName = Guid.NewGuid().ToString();
                    }
                    photoData = ContactPhotoManager.UploadPhotoToTemp(file.InputStream, tmpDirName);
                }

                fileUploadResult.Success = true;
                fileUploadResult.Data = photoData;
            }
            catch (Exception e)
            {
                fileUploadResult.Success = false;
                fileUploadResult.Message = e.Message.HtmlEncode();
                return fileUploadResult;
            }

            if (contact != null)
            {
                var messageAction = contact is Company ? MessageAction.CompanyUpdatedPhoto : MessageAction.PersonUpdatedPhoto;
                MessageService.Send(context.Request, messageAction, MessageTarget.Create(contact.ID), contact.GetTitle());
            }

            return fileUploadResult;
        }
    }
}