/*===============================================================================================
 PlayStream Example
 Copyright (c), Firelight Technologies Pty, Ltd 2004-2016.

 This example shows how to simply play a stream, such as an mp3 or wav.
 The stream behaviour is achieved by specifying FMOD_CREATESTREAM in the call to 
 System::createSound.
 This makes FMOD decode the file in realtime as it plays, instead of loading it all at once.
 This uses far less memory, in exchange for a small runtime cpu hit.
===============================================================================================*/
#include <windows.h>
#include <stdio.h>
#include <conio.h>

#include "../../api/inc/fmod.hpp"
#include "../../api/inc/fmod_errors.h"

void ERRCHECK(FMOD_RESULT result)
{
    if (result != FMOD_OK)
    {
        printf("FMOD error! (%d) %s\n", result, FMOD_ErrorString(result));
        exit(-1);
    }
}


int main(int argc, char *argv[])
{
    FMOD::System     *system;
    FMOD::Sound      *sound;
    FMOD::Channel    *channel = 0;
    FMOD_RESULT       result;
    int               key;
    unsigned int      version;

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }

    result = system->init(1, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->createStream("../media/wave.mp3", FMOD_HARDWARE | FMOD_LOOP_NORMAL | FMOD_2D, 0, &sound);
    ERRCHECK(result);

    printf("====================================================================\n");
    printf("PlayStream Example.  Copyright (c) Firelight Technologies 2004-2016.\n");
    printf("====================================================================\n");
    printf("\n");
    printf("Press space to pause, Esc to quit\n");
    printf("\n");

    /*
        Play the sound.
    */

    result = system->playSound(FMOD_CHANNEL_FREE, sound, false, &channel);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        if (_kbhit())
        {
            key = _getch();

            switch (key)
            {
                case ' ' :
                {
                    bool paused;
                    channel->getPaused(&paused);
                    channel->setPaused(!paused);
                    break;
                }
                case 'p' : 
                { 
                    FMOD::ChannelGroup* masterGroup = NULL; 
                    system->getMasterChannelGroup(&masterGroup); 
                    if (masterGroup) 
                    { 
                        bool paused; 
                        masterGroup->getPaused(&paused); 
                        masterGroup->setPaused(!paused); 
                    } 
                    break; 
                }
            }
        }

        system->update();

        if (channel)
        {
            unsigned int ms;
            unsigned int lenms;
            bool         playing;
            bool         paused;

            result = channel->isPlaying(&playing);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = channel->getPaused(&paused);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = channel->getPosition(&ms, FMOD_TIMEUNIT_MS);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = sound->getLength(&lenms, FMOD_TIMEUNIT_MS);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            printf("Time %02d:%02d:%02d/%02d:%02d:%02d : %s\r", ms / 1000 / 60, ms / 1000 % 60, ms / 10 % 100, lenms / 1000 / 60, lenms / 1000 % 60, lenms / 10 % 100, paused ? "Paused " : playing ? "Playing" : "Stopped");
        }

        Sleep(10);

    } while (key != 27);

    printf("\n");

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    return 0;
}