#ifndef ENGINE_H
#define ENGINE_H

#include <jack/jack.h>
#include <jack/midiport.h>
#include <stdint.h>
#include <stdbool.h>

#define MAX_CLIPS 128
#define MAX_BUFFER_SIZE 441000  // 10 seconds at 44.1kHz

typedef enum {
    CLIP_EMPTY,
    CLIP_RECORDING,
    CLIP_LOOPING,
    CLIP_STOPPED
} ClipState;

typedef struct {
    ClipState state;
    float *buffer;
    size_t buffer_size;
    size_t write_position;
    size_t read_position;
    bool is_playing;
} Clip;

typedef struct {
    jack_client_t *client;
    jack_port_t *audio_in_port;
    jack_port_t *audio_out_port;
    jack_port_t *midi_in_port;
    jack_port_t *midi_out_port;
    
    Clip clips[MAX_CLIPS];
    int control_channel;
    jack_nframes_t sample_rate;
    
    bool running;
} Engine;

// Engine lifecycle
int engine_init(Engine *engine, const char *client_name);
void engine_cleanup(Engine *engine);
int engine_start(Engine *engine);
void engine_stop(Engine *engine);

// Clip management
void engine_trigger_clip(Engine *engine, int clip_index);
void engine_reset_clip(Engine *engine, int clip_index);

// Utility
const char* clip_state_to_string(ClipState state);
uint8_t clip_state_to_velocity(ClipState state);

#endif // ENGINE_H