using Microsoft.EntityFrameworkCore;
using T120B165_ImgBoard.Data;
using File = T120B165_ImgBoard.Models.File;

namespace T120B165_ImgBoard.Services;

public interface IFileService
{
    public Task<File?> GetFileById(long id);
    Task<File> Update(File file);
    Task Delete(File file);
}

public class FileService(ImgBoardContext context): IFileService
{
    public async Task<File?> GetFileById(long id)
    {
        return await context.Files.Where(f => f.Id == id).FirstOrDefaultAsync();
    }

    public async Task<File> Update(File file)
    {
        context.Files.Update(file);
        await context.SaveChangesAsync();
        return file;
    }
    
    public async Task Delete(File file)
    {
        var actualFile = await GetFileById(file.Id);
        context.Files.Remove(actualFile);
        await context.SaveChangesAsync();
    }
}