#include <iostream>

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>

#include "TimerComponent.hpp"
#include "LoggerService.hpp"
#include "ConfigService.hpp"
#include "synth/AudioEngine.hpp"
#include "synth/KeyboardController.hpp"
#include "synth/Scope.hpp"
#include "synth/MidiController.hpp"

int main(int argc, char* argv[]) {

    // create application
    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;

    // create app objects
    ConfigService config = ConfigService("config/sonobulus.cfg");
    LoggerService logger = LoggerService(&config, "Engine");
    NoteQueue queue = NoteQueue(&config, &logger);
    ScopeBuffer scopeBuffer = ScopeBuffer(&config, &logger, 2048);
    KeyboardController keyboard(&config, &logger, &queue);
    MidiController midi(&config, &logger, &queue);
    Synth synth(&config, &logger, &scopeBuffer, &queue);

    // audio synthesizer doohickey
    AudioEngine audioEngine = AudioEngine(&config, &logger, &synth);
    audioEngine.start();

    // attach backend gui components
    qmlRegisterType<TimerComponent>("AppDemo", 1, 0, "TimerComponent");
    qmlRegisterType<Scope>("AppDemo", 1, 0, "Scope");
    // attach backend services to qml
    engine.rootContext()->setContextProperty("keyboardController", &keyboard);
    engine.rootContext()->setContextProperty("scopeBuffer", &scopeBuffer);

    // load qml
    engine.load(QUrl::fromLocalFile("ui/Main.qml")); // ugh

    if(engine.rootObjects().isEmpty()) {
        logger.log("Main", LogFlag::Error, "Engine is empty.");
        return -1;
    }

    // execute app
    return app.exec();
}