namespace Publicate.Video {

    public class Encoder {

        public string input_file { get; private set; }
        public string output_dir { get; private set; }
        public EncodingProfile profile { get; private set; }

        public signal void progress_changed(double fraction, bool completed);

        public Encoder(File input, string output_dir, EncodingProfile profile) {
            input_file = input.get_path();
            this.output_dir = output_dir;
            this.profile = profile;
        }

        public void encode() throws Error {
            progress_changed(0.0, false);
            var output_file = output_dir + "/" + profile.output_name();
            var first_pass = new Subprocess.newv(profile.get_first_pass_command(input_file, output_file), GLib.SubprocessFlags.NONE);
            first_pass.wait();
            if(first_pass.get_exit_status() != 0) {
                throw new Error.literal(Quark.from_string("first-pass-failed"), 19, "Failed to analyse video");
            }

            progress_changed(0.5, false);
            var second_pass = new Subprocess.newv(profile.get_second_pass_command(input_file, output_file), GLib.SubprocessFlags.NONE);
            second_pass.wait();
            if(second_pass.get_exit_status() != 0) {
                throw new Error.literal(Quark.from_string("second-pass-failed"), 19, "Failed to encode video");
            }

            progress_changed(1.0, true);
        }


    }

}