marechai/Marechai/Services/DocumentScansService.cs

/******************************************************************************
// MARECHAI: Master repository of computing history artifacts information
// ----------------------------------------------------------------------------
//
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// --[ License ] --------------------------------------------------------------
//
//     This program is free software: you can redistribute it and/or modify
//     it under the terms of the GNU General Public License as
//     published by the Free Software Foundation, either version 3 of the
//     License, or (at your option) any later version.
//
//     This program 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 General Public License for more details.
//
//     You should have received a copy of the GNU General Public License
//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2021 Natalia Portillo
*******************************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Marechai.Data.Dtos;
using Marechai.Database.Models;
using Microsoft.EntityFrameworkCore;

namespace Marechai.Services;

public class DocumentScansService(MarechaiContext context)
{
    public async Task<List<Guid>> GetGuidsByDocumentAsync(long bookId) =>
        await context.DocumentScans.Where(p => p.DocumentId == bookId).Select(p => p.Id).ToListAsync();

    public async Task<DocumentScanViewModel> GetAsync(Guid id) => await context.DocumentScans.Where(p => p.Id == id)
                                                                     .Select(p => new DocumentScanViewModel
                                                                      {
                                                                          Author               = p.Author,
                                                                          DocumentId           = p.Document.Id,
                                                                          ColorSpace           = p.ColorSpace,
                                                                          Comments             = p.Comments,
                                                                          CreationDate         = p.CreationDate,
                                                                          ExifVersion          = p.ExifVersion,
                                                                          HorizontalResolution = p.HorizontalResolution,
                                                                          Id                   = p.Id,
                                                                          ResolutionUnit       = p.ResolutionUnit,
                                                                          Page                 = p.Page,
                                                                          ScannerManufacturer  = p.ScannerManufacturer,
                                                                          ScannerModel         = p.ScannerModel,
                                                                          SoftwareUsed         = p.SoftwareUsed,
                                                                          Type                 = p.Type,
                                                                          UploadDate           = p.UploadDate,
                                                                          UserId               = p.UserId,
                                                                          VerticalResolution   = p.VerticalResolution,
                                                                          OriginalExtension    = p.OriginalExtension
                                                                      })
                                                                     .FirstOrDefaultAsync();

    public async Task UpdateAsync(DocumentScanViewModel viewModel, string userId)
    {
        DocumentScan model = await context.DocumentScans.FindAsync(viewModel.Id);

        if(model is null) return;

        model.Author               = viewModel.Author;
        model.ColorSpace           = viewModel.ColorSpace;
        model.Comments             = viewModel.Comments;
        model.CreationDate         = viewModel.CreationDate;
        model.ExifVersion          = viewModel.ExifVersion;
        model.HorizontalResolution = viewModel.HorizontalResolution;
        model.ResolutionUnit       = viewModel.ResolutionUnit;
        model.Page                 = viewModel.Page;
        model.ScannerManufacturer  = viewModel.ScannerManufacturer;
        model.ScannerModel         = viewModel.ScannerModel;
        model.Type                 = viewModel.Type;
        model.SoftwareUsed         = viewModel.SoftwareUsed;
        model.VerticalResolution   = viewModel.VerticalResolution;

        await context.SaveChangesWithUserAsync(userId);
    }

    public async Task<Guid> CreateAsync(DocumentScanViewModel viewModel, string userId)
    {
        var model = new DocumentScan
        {
            Author               = viewModel.Author,
            DocumentId           = viewModel.DocumentId,
            ColorSpace           = viewModel.ColorSpace,
            Comments             = viewModel.Comments,
            CreationDate         = viewModel.CreationDate,
            ExifVersion          = viewModel.ExifVersion,
            HorizontalResolution = viewModel.HorizontalResolution,
            Id                   = viewModel.Id,
            ResolutionUnit       = viewModel.ResolutionUnit,
            Page                 = viewModel.Page,
            ScannerManufacturer  = viewModel.ScannerManufacturer,
            ScannerModel         = viewModel.ScannerModel,
            Type                 = viewModel.Type,
            SoftwareUsed         = viewModel.SoftwareUsed,
            UploadDate           = viewModel.UploadDate,
            UserId               = viewModel.UserId,
            VerticalResolution   = viewModel.VerticalResolution,
            OriginalExtension    = viewModel.OriginalExtension
        };

        await context.DocumentScans.AddAsync(model);
        await context.SaveChangesWithUserAsync(userId);

        return model.Id;
    }

    public async Task DeleteAsync(Guid id, string userId)
    {
        DocumentScan item = await context.DocumentScans.FindAsync(id);

        if(item is null) return;

        context.DocumentScans.Remove(item);

        await context.SaveChangesWithUserAsync(userId);
    }
}