/* Seedbox firmware: state shared between core 0 (UI) and core 1 (sequencer). Mirrors sim/app.js. */
#ifndef SEEDBOX_APP_H
#define SEEDBOX_APP_H

#include <stdint.h>
#include "pico/critical_section.h"
#include "pico/util/queue.h"
#include "engine.h"

#define NKIT   7     /* kit tracks are 0..6 (lane 0); LEARN index = track index */
#define NSLOTS 8

typedef struct { uint8_t used, ch, note; } pad_t;   /* learned pad: ch 0..15 */

/* Everything the sequencer reads. Core 0 writes it under g_live_lock; core 1 copies it under the same lock. */
typedef struct {
  sb_state state;
  int gen, energy, drift, bpm;
  int scale, root;                 /* ROOT / SCALE pages: -1 = AUTO (the seed picks) */
  uint8_t on[SB_NT], inv[SB_NT];   /* inv: flipped while the button is held */
  pad_t learn[NKIT];
  int mono_ch;                     /* synth channel 1..16 */
  int mono_oct;                    /* -3..3 */
  int clock;                       /* send clock + start/stop */
} live_t;

extern live_t g_live;
extern critical_section_t g_live_lock;

/* core 0 -> core 1 */
enum { CMD_START, CMD_STOP, CMD_RELEASE_TRACK, CMD_BPM };
typedef struct { uint8_t cmd; int16_t arg; } cmd_t;
extern queue_t g_cmdq;

/* core 1 -> core 0, for the screen */
extern volatile int g_running;
extern volatile int g_cur_bar;                 /* bar being heard, -1 if none */
extern volatile uint32_t g_hit_until_ms[SB_NT];

void seq_core1_main(void);

/* app.js learned(): the channel and note a kit track was learned with. Returns 0 if not learned. */
int learned(const live_t *L, int tr, int *ch, int *note);

#endif