#include <ao/ao.h>
#include <mpg123.h>
#include <pthread.h>
#include <error.h>
#include <string.h>
#include <ncurses.h>

#include "sound.h"
#include "config.h"
#define BITS 8


void playSound(const char *path) {
    pthread_t pth; //thread identifier
    //Create thread
    pthread_create(&pth, NULL, playThreadFunc, (void *) path);
    pthread_detach(pth); //detach to call this function multiple times
}


void *playThreadFunc(void *arg) {
    const char *path = (const char *) arg;
    
    mpg123_handle *mh;
    unsigned char *buffer;
    size_t buffer_size;
    size_t done;
    int err;

    int driver;
    ao_device *dev;

    ao_sample_format format;
    int channels, encoding;
    long rate;

    /* initializations */
    
    driver = ao_default_driver_id();
    mpg123_init();
    mh = mpg123_new(NULL, &err);
    buffer_size = mpg123_outblock(mh);
    buffer = (unsigned char*) malloc(buffer_size * sizeof(unsigned char));

    /* open the file and get the decoding format */
    mpg123_open(mh, path);
    mpg123_getformat(mh, &rate, &channels, &encoding);

    /* set the output format and open the output device */
    format.bits = mpg123_encsize(encoding) * BITS;
    format.rate = rate;
    format.channels = channels;
    format.byte_format = AO_FMT_NATIVE;
    format.matrix = 0;
    dev = ao_open_live(driver, &format, NULL);

    /* decode and play */
    while (mpg123_read(mh, buffer, buffer_size, &done) == MPG123_OK)
        ao_play(dev, (char *)buffer, done);

    /* clean up */
    free(buffer);
    ao_close(dev);
    mpg123_close(mh);
    mpg123_delete(mh);
    mpg123_exit();
    //ao_shutdown(); //don't call inside a thread
    
    pthread_exit(NULL);
}