/* audio volume control for x11 (c) firk 2020-2022
   please respect the authorship
   feel free to use this code for anything */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include "mixer.h"
#include "vol-alsa.h"

unsigned int  volume;
unsigned char mute;

extern void handle_audio_mute(void) {
  alsa_volume(8, NULL, &mute);
  mute = !mute;
  alsa_volume(4, NULL, &mute);
  x11_redraw();
}

extern void handle_audio_down(void) {
  alsa_volume(2, &volume, NULL);
  if(volume>30) volume -= 30; else volume = 0;
  alsa_volume(1, &volume, NULL);
  x11_redraw();
}

extern void handle_audio_up(void) {
  alsa_volume(2, &volume, NULL);
  if(volume<970) volume += 30; else volume = 1000;
  alsa_volume(1, &volume, NULL);
  x11_redraw();
}

extern void handle_audio_set(unsigned v) {
  alsa_volume(2, &volume, NULL);
  volume = (v<1000)?v:1000;
  alsa_volume(1, &volume, NULL);
  x11_redraw();
}

static void parse_winprops(char const *a, winprops *r) {
  bzero(r, sizeof(*r));
  if(!a || !*a) return;
  r->o = atoi(a);
  if(!(a = strchr(a,':')) || !*(++a)) return;
  r->x0 = atoi(a);
  if(!(a = strchr(a,':')) || !*(++a)) return;
  r->y0 = atoi(a);
  if(!(a = strchr(a,':')) || !*(++a)) return;
  r->w = atoi(a);
  if(!(a = strchr(a,':')) || !*(++a)) return;
  r->h = atoi(a);
  if(!(a = strchr(a,':')) || !*(++a)) return;
  r->bw = atoi(a);
}

int main(int argc, char * * argv) {
  winprops wp;
  wp.o = wp.x0 = wp.y0 = wp.w = wp.h = wp.bw = 0;
  if(argc==2) parse_winprops(argv[1],&wp);
  else {
    if(argc>=2) wp.o = atoi(argv[1]);
    if(argc>=3) wp.x0 = atoi(argv[2]);
    if(argc>=4) wp.y0 = atoi(argv[3]);
    if(argc>=5) wp.w = atoi(argv[4]);
    if(argc>=6) wp.h = atoi(argv[5]);
    if(argc>=7) wp.bw = atoi(argv[6]);
  }
  x11_init(NULL,&wp);
  init_key_hooks();
  volume = 600;
  mute = 1;
  x11_redraw();
  alsa_volume(10, &volume, &mute);
  while(1) x11_event_cycle(1);
  return 0;
}