#ifndef HYPERDRM_SOURCE_BRIDGE_H
#define HYPERDRM_SOURCE_BRIDGE_H
static unsigned bridge_phase,bridge_sequence;
static uint64_t bridge_started,bridge_clear_at,bridge_fade_at,bridge_last_sent;
static unsigned char bridge_from[16][3],bridge_to[16][3];
static CaptureSource bridge_source;
static char *region_command(const unsigned char colors[16][3],const LedBlend *mapping,unsigned count,unsigned duration){
 if(!count || !mapping)return NULL;
 if(!strcmp(target.receiver,"HyperHDR"))return spatial_image_command_duration(colors,PRIORITY,duration);
 size_t capacity=256+(size_t)count*12;char *line=malloc(capacity);if(!line)return NULL;
 size_t n=(size_t)snprintf(line,capacity,"{\"command\":\"color\",\"priority\":%d,\"duration\":%u,\"origin\":\"HyperDRM\",\"color\":[",PRIORITY,duration);
 for(unsigned i=0;i<count;i++){unsigned char value[3];LedBlend b=mapping[i];blend_color(colors[b.a],colors[b.b],b.weight,value);n+=(size_t)snprintf(line+n,capacity-n,"%s%u,%u,%u",i?",":"",value[0],value[1],value[2]);}
 snprintf(line+n,capacity-n,"]}\n");return line;
}
static bool bridge_clear(void){return stream.stage==4 && stream_queue("{\"command\":\"clear\",\"priority\":149}\n");}
static bool bridge_send(const unsigned char colors[16][3]){
 if(stream.stage!=4)return false;
 char *line=region_command(colors,stream.mapping,stream.count,1500);if(!line)return false;
 bool ok=stream_queue(line);free(line);return ok;
}
static void bridge_tick(uint64_t now){
 if(retries.paused || retries.blocked){if(bridge_phase)bridge_clear();bridge_phase=0;bridge_source=capture_source;return;}
 if(capture_source!=bridge_source){
  if(capture_source==SOURCE_PICCAP_STARTING){
   bridge_phase=continuity.available && now-continuity.valid_at<2000?1:0;bridge_started=now;memcpy(bridge_from,continuity.last,sizeof(bridge_from));
  }else if(capture_source==SOURCE_PICCAP_STOPPING || (bridge_source==SOURCE_PICCAP && capture_source==SOURCE_HISTOGRAM)){
   bridge_phase=0;
   if(stream.valid && now-stream.updated<1000){continuity_seed(&continuity,stream.colors,now);bridge_send(stream.colors);}
  }
  bridge_source=capture_source;
 }
 if(bridge_phase && now-bridge_started>=3000){if(bridge_clear())bridge_phase=0;return;}
 if(bridge_phase==1 && capture_source==SOURCE_PICCAP && piccap_connected && stream.stage==4){
  if(bridge_clear()){bridge_sequence=stream.sequence;bridge_clear_at=now;bridge_phase=2;}
 }else if(bridge_phase==1 && now-bridge_last_sent>=100 && stream.stage==4){
  if(bridge_send(bridge_from))bridge_last_sent=now;
 }else if(bridge_phase==2 && stream.valid && stream.sequence>bridge_sequence && stream.updated>=bridge_clear_at+150){
  memcpy(bridge_to,stream.colors,sizeof(bridge_to));bridge_fade_at=now;bridge_phase=3;
  bool black=true;for(unsigned r=0;r<16;r++)for(unsigned c=0;c<3;c++)if(bridge_to[r][c]>3)black=false;
  if(black)bridge_phase=0;
 }
 if(bridge_phase==3 && now-bridge_last_sent>=100){
  if(now-bridge_fade_at>=500){if(bridge_clear())bridge_phase=0;}
  else {unsigned char colors[16][3];continuity_mix(bridge_from,bridge_to,(unsigned)(now-bridge_fade_at),colors);if(bridge_send(colors))bridge_last_sent=now;}
 }
}
#endif