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#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>

#include "polyplib-simple.h"
#include "polyplib-error.h"

#define BUFSIZE 1024

static ssize_t loop_write(int fd, const void*data, size_t size) {
    ssize_t ret = 0;

    while (size > 0) {
        ssize_t r;

        if ((r = write(fd, data, size)) < 0)
            return r;

        if (r == 0)
            break;
        
        ret += r;
        data += r;
        size -= r;
    }

    return ret;
}

int main(int argc, char*argv[]) {
    static const struct pa_sample_spec ss = {
        .format = PA_SAMPLE_S16LE,
        .rate = 44100,
        .channels = 2
    };
    struct pa_simple *s = NULL;
    int ret = 1;
    int error;

    if (!(s = pa_simple_new(NULL, argv[0], PA_STREAM_RECORD, NULL, "record", &ss, NULL, &error))) {
        fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
        goto finish;
    }

    for (;;) {
        uint8_t buf[BUFSIZE];
        ssize_t r;

        if (pa_simple_read(s, buf, sizeof(buf), &error) < 0) {
            fprintf(stderr, __FILE__": pa_simple_read() failed: %s\n", pa_strerror(error));
            goto finish;
        }
            
        if ((r = loop_write(STDOUT_FILENO, buf, sizeof(buf))) <= 0) {
            fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
            goto finish;
        }
    }

    ret = 0;

finish:

    if (s)
        pa_simple_free(s);
    
    return ret;
}