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

namespace TeleWave.Application.Broadcast.Bumpers;

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

        var template = channel.FindBumperTemplate(command.TemplateId);
        if (template is null)
            return Result.Failure(ChannelErrors.BumperTemplateNotFound);

        template.SetAudio(command.Extension, command.DurationSeconds);
        return Result.Success();
    }
}
