marechai/Marechai/Services/BooksByMachineFamilyService.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 © 2003-2026 Natalia Portillo
*******************************************************************************/

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 BooksByMachineFamilyService(MarechaiContext context)
{
    public async Task<List<BookByMachineFamilyDto>> GetByBook(long bookId) => await context
                                                                                         .BooksByMachineFamilies.Where(p => p.BookId == bookId)
                                                                                         .Select(p => new BookByMachineFamilyDto
                                                                                          {
                                                                                              Id              = p.Id,
                                                                                              BookId          = p.BookId,
                                                                                              MachineFamilyId = p.MachineFamilyId,
                                                                                              MachineFamily   = p.MachineFamily.Name
                                                                                          })
                                                                                         .OrderBy(p => p.MachineFamily)
                                                                                         .ToListAsync();

    public async Task DeleteAsync(long id, string userId)
    {
        BooksByMachineFamily item = await context.BooksByMachineFamilies.FindAsync(id);

        if(item is null) return;

        context.BooksByMachineFamilies.Remove(item);

        await context.SaveChangesWithUserAsync(userId);
    }

    public async Task<long> CreateAsync(int machineFamilyId, long bookId, string userId)
    {
        var item = new BooksByMachineFamily
        {
            MachineFamilyId = machineFamilyId,
            BookId          = bookId
        };

        await context.BooksByMachineFamilies.AddAsync(item);
        await context.SaveChangesWithUserAsync(userId);

        return item.Id;
    }
}