#include "atari2600.h"
#include "6502m.h"
#include "mem.h"
#include "tia.h"
#include "pia.h"
#include "display.h"
#include "speaker.h"
//#include "keyboard.h"
#include "6502debugger.h"

#define NTSC_CLOCK 1193182.0f
#define PAL_CLOCK 1182298.0f
#define SECAM_CLOCK 1187500.0f
#define PAL_M_CLOCK 1191870.0f

namespace atari2600
{
    static bool should_exit = false;
    static bool paused = false;

    void init()
    {
        paused = false;
        m6502::reset();
        mem::reset();
        tia::reset();
        pia::reset();

        display::init();
        speaker::init(NTSC_CLOCK);
        speaker::register_source(tia::audio::get_sample0);
        speaker::register_source(tia::audio::get_sample1);
    }

    void quit()
    {
        should_exit = true;
    }

    int ppc = 0;
    void step()
    {
        //uint8_t t_states;
        uint16_t pc = m6502::getPC();
        ppc += pc;
        m6502debugger::onInstructionExecute(pc);
//        if (z80debugger::isbreak(pc, 9)) {
//            msx::pause();
//            z80debugger::show();
//            return;
//        } else {
            bool instruction_done = false;
            while (!instruction_done) {
                if (!tia::is_rdy_low()) {
                    instruction_done = m6502::tick();
                } else {
                    instruction_done = true;
                }
                tia::tick();
                tia::tick();
                tia::tick();
                pia::tick();
                //t_states++;
            }
            //speaker::update(t_states);
//        }
    }

    void pause()
    {
        display::setTitle(" (paused)");
        paused = true;
        display::redraw();
    }

    void resume()
    {
        display::setTitle("");
        paused = false;
    }

    bool is_paused()
    {
        return paused;
    }

    bool is_quitting()
    {
        return should_exit;
    }

}