using ErsatzTV.Core.Api.Graphics;
using ErsatzTV.Core.Domain;
using ErsatzTV.Core.Graphics;
using ErsatzTV.Infrastructure.Data;
using Microsoft.EntityFrameworkCore;
using static ErsatzTV.Application.Graphics.Mapper;

namespace ErsatzTV.Application.Graphics;

public class GetAllGraphicsElementsForApiHandler(IDbContextFactory<TvContext> dbContextFactory)
    : IRequestHandler<GetAllGraphicsElementsForApi, List<GraphicsElementResponseModel>>
{
    public async Task<List<GraphicsElementResponseModel>> Handle(
        GetAllGraphicsElementsForApi request,
        CancellationToken cancellationToken)
    {
        await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
        List<GraphicsElement> graphicsElements = await dbContext.GraphicsElements
            .AsNoTracking()
            .ToListAsync(cancellationToken);
        return graphicsElements
            .Select(e => new
            {
                Vm = ProjectToViewModel(e),
                BuiltIn = Path.GetFileName(e.Path) == GraphicsElementDefaults.OnNowNextFileName
            })
            .OrderBy(x => x.Vm.Name == x.Vm.FileName)
            .ThenBy(x => x.Vm.Name)
            .Select(x => new GraphicsElementResponseModel(x.Vm.Id, x.Vm.Name, x.BuiltIn))
            .ToList();
    }
}