#include "debughelper.h"

DebugHelper::DebugHelper(bool init) :
    _toggled(init)
{
    _bpm_pulse.setSize({460, 360});
    _bpm_pulse.setOrigin(0.f, 0.f);
    _bpm_pulse.setFillColor(sf::Color(255, 0, 0, 0));
    _tap_pulse.setSize({460, 360});
    _tap_pulse.move(460.f, 0.f);
    _tap_pulse.setFillColor(sf::Color(0, 255, 0, 0));
    _death_pulse.setSize({460, 360});
    _death_pulse.move(460.f, 360.f);
    _death_pulse.setFillColor(sf::Color(0, 100, 255, 0));

    _font.loadFromFile("VeraMono.ttf");

    _time_print.setFont(_font);
    _time_print.setPosition(60, 60);
    _time_print.setFillColor(sf::Color(255, 255, 255));
    _time_print.setCharacterSize(25);
}

void DebugHelper::toggle()
{
    _toggled = !_toggled;
}

static bool isVisible(const sf::Shape* shape)
{
    return shape->getFillColor().a > 0;
}

void DebugHelper::update(const sf::Int64 &microseconds)
{
    _time_print.setString(std::to_string(microseconds));

    if (isVisible(&_bpm_pulse))
    {
        const auto new_alpha = _bpm_pulse.getFillColor().a - 25;
        _bpm_pulse.setFillColor(sf::Color(255, 0, 0, (new_alpha < 0) ? 0 : new_alpha));
    }

    if (isVisible(&_tap_pulse))
    {
        const auto new_alpha = _tap_pulse.getFillColor().a - 25;
        _tap_pulse.setFillColor(sf::Color(0, 255, 0, (new_alpha < 0) ? 0 : new_alpha));
    }

    if (isVisible(&_death_pulse))
    {
        const auto new_alpha = _death_pulse.getFillColor().a - 25;
        _death_pulse.setFillColor(sf::Color(0, 100, 255, (new_alpha < 0) ? 0 : new_alpha));
    }
}

void DebugHelper::drawOn(sf::RenderWindow &game_window) const
{
    if (_toggled)
    {
        game_window.draw(_bpm_pulse);
        game_window.draw(_tap_pulse);
        game_window.draw(_death_pulse);
        game_window.draw(_time_print);
    }
}

void DebugHelper::onUserTap()
{
    const sf::Uint8 alpha = 255;
    _tap_pulse.setFillColor(sf::Color(255, 0, 0, alpha));
}

void DebugHelper::onBeat()
{
    const sf::Uint8 alpha = 255;
    _bpm_pulse.setFillColor(sf::Color(0, 255, 0, alpha));
}

void DebugHelper::onDeath()
{
    const sf::Uint8 alpha = 255;
    _death_pulse.setFillColor(sf::Color(0, 100, 255, alpha));
}