using CPRNIMS.Domain.Contracts.Account;
using CPRNIMS.Infrastructure.Database;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CPRNIMS.Domain.Services.Account
{
    public class Attachment : IAttachment
    {
        private readonly NonInventoryDbContext _NonInventoryDbContext;
        public Attachment(NonInventoryDbContext NonInventoryDbContext)
        {
            _NonInventoryDbContext = NonInventoryDbContext;

        }

        public async Task<Infrastructure.Entities.Account.Attachment> CreateUpdateAttachment(Infrastructure.Entities.Account.Attachment attachment, string userId)
        {
            try
            {
                var updateProfile = _NonInventoryDbContext.Attachments.
                    SingleOrDefault(a => a.AttachmentId == userId);

                if (updateProfile != null)
                {
                    updateProfile.URL = attachment.URL;
                    updateProfile.FileName = attachment.FileName;
                    updateProfile.ExtensionId = attachment.ExtensionId;
                    updateProfile.UpdatedDate = attachment.UpdatedDate;
                    updateProfile.UpdatedBy = attachment.UpdatedBy;
                    await _NonInventoryDbContext.SaveChangesAsync();
                    return updateProfile;
                }
                else
                {
                    await _NonInventoryDbContext.AddAsync(attachment);
                    await _NonInventoryDbContext.SaveChangesAsync();
                    return updateProfile;
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.InnerException);
                throw;
            }
        }

        public Task<Infrastructure.Entities.Account.Attachment> CreateAttachment(Infrastructure.Entities.Account.Attachment attachment)
        {
            throw new NotImplementedException();
        }

        public Task DeleteSignatureAsync(int id)
        {
            throw new NotImplementedException();
        }

        public async Task<List<Infrastructure.Entities.Account.Attachment>> GetAttachmentById(string userId)
        {
            var updateProfile = await _NonInventoryDbContext.Attachments
                       .Where(s => s.AttachmentId == userId)
                       .ToListAsync();

            if (updateProfile != null || updateProfile.Count == 1)
            {
                return updateProfile;
            }
            else
            {
                return null;
            }
        }

        public async Task<List<Infrastructure.Entities.Account.Attachment>> GetAllAttachment()
        {
            var allAttachments = await (from a in _NonInventoryDbContext.Attachments
                                        join aft in _NonInventoryDbContext.AttachmentFileTypes on a.AttachmentTypeId equals aft.AttachmentTypeId into aftGroup
                                        from aft in aftGroup.DefaultIfEmpty()
                                        join ae in _NonInventoryDbContext.AttachmentExtensions on a.ExtensionId equals ae.ExtensionId into aeGroup
                                        from ae in aeGroup.DefaultIfEmpty()
                                        select new Infrastructure.Entities.Account.Attachment
                                        {
                                            FileName = a.FileName,
                                            AttachmentId = a.AttachmentId,
                                            URL = a.URL,
                                            AttachmentFileType = aft,
                                            AttachmentExtention = ae,
                                            CreatedBy = a.CreatedBy,
                                            CreatedDate = a.CreatedDate,
                                            UpdatedBy = a.UpdatedBy,
                                            UpdatedDate = a.UpdatedDate
                                        }).ToListAsync();


            if (allAttachments != null || allAttachments.Count == 1)
            {
                return allAttachments;
            }
            else
            {
                return null;
            }
        }

        public async Task<List<Infrastructure.Entities.Account.Attachment>> GetAttachmentByType(string userId, int fileType)
        {
            var allAttachments = await (from a in _NonInventoryDbContext.Attachments
                                        join aft in _NonInventoryDbContext.AttachmentFileTypes
                                        on a.AttachmentTypeId equals aft.AttachmentTypeId into aftGroup
                                        from aft in aftGroup.DefaultIfEmpty()
                                        join ae in _NonInventoryDbContext.AttachmentExtensions on a.ExtensionId equals ae.ExtensionId into aeGroup
                                        from ae in aeGroup.DefaultIfEmpty()
                                        where a.AttachmentId == userId && aft.AttachmentTypeId == fileType
                                        select new Infrastructure.Entities.Account.Attachment
                                        {
                                            FileName = a.FileName,
                                            AttachmentId = a.AttachmentId,
                                            URL = a.URL,
                                            AttachmentFileType = aft,
                                            AttachmentExtention = ae,
                                            CreatedBy = a.CreatedBy,
                                            CreatedDate = a.CreatedDate,
                                            UpdatedBy = a.UpdatedBy,
                                            UpdatedDate = a.UpdatedDate
                                        }).ToListAsync();


            if (allAttachments != null || allAttachments.Count == 1)
            {
                return allAttachments;
            }
            else
            {
                return null;
            }
        }
    }
}