using LiteCqrs;
using Microsoft.EntityFrameworkCore;
using TeleWave.Application.Common.Interfaces;
using TeleWave.Application.Common.Models;

namespace TeleWave.Application.Broadcast.RemoveChannelShow;

public sealed class RemoveChannelShowCommandHandler(IAppDbContext dbContext)
    : ICommandHandler<RemoveChannelShowCommand, Result>
{
    public async Task<Result> Handle(
        RemoveChannelShowCommand command,
        CancellationToken cancellationToken
    )
    {
        var channel = await dbContext
            .Channels.Include(c => c.Shows)
            .FirstOrDefaultAsync(c => c.Id == command.ChannelId, cancellationToken);
        if (channel is null)
            return Result.Failure(ChannelErrors.NotFound);

        return channel.RemoveShow(command.ChannelShowId)
            ? Result.Success()
            : Result.Failure(ChannelErrors.ChannelShowNotFound);
    }
}