#include <audiofile.h>

SNDFILE *audiofile_read(const char *path, SF_INFO *sfinfo) {
    SNDFILE *sndfile = sf_open(path, SFM_READ, sfinfo);
    if (sndfile == NULL) {
        fprintf(stderr, "Failed to read audio file: %s\n", sf_strerror(NULL));
        return NULL;
    }

    if (sfinfo->channels != 2) {
        fprintf(stderr, "File must have 2 channels\n");
        sf_close(sndfile);
        return NULL;
    }

    int seconds = (double)sfinfo->frames / sfinfo->samplerate;
    int minutes = seconds / 60;
    printf("Duration: %d:%d\n", minutes, seconds % 60);
    printf("Sample rate: %dHz\n\n", sfinfo->samplerate);

    return sndfile;
}

SNDFILE *audiofile_open_for_write(const char *path, SF_INFO *og_info) {
    SF_INFO	sfinfo = {0};
    sfinfo.samplerate = og_info->samplerate;
    sfinfo.format = og_info->format;
    sfinfo.channels = og_info->channels;

    SNDFILE *sndfile = sf_open(path, SFM_WRITE, &sfinfo);
    if (sndfile == NULL) {
        fprintf(stderr, "Failed to open audio file: %s\n", sf_strerror(NULL));
        return NULL;
    }

    return sndfile;
}