#ifndef LINUXCNC_WEB_WASM_SIM_INTERPRETER_H
#define LINUXCNC_WEB_WASM_SIM_INTERPRETER_H

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

enum sim_interpreter_result {
    SIM_INTERP_OK = 0,
    SIM_INTERP_ERR_ARGUMENT = -500,
    SIM_INTERP_ERR_NONFINITE = -501,
    SIM_INTERP_ERR_SYNTAX = -502,
    SIM_INTERP_ERR_RANGE = -503,
    SIM_INTERP_ERR_UNKNOWN_CODE = -504,
    SIM_INTERP_ERR_STATE = -505,
    SIM_INTERP_ERR_BUFFER = -506,
};

enum sim_interpreter_units {
    SIM_INTERP_UNITS_INCH = 20,
    SIM_INTERP_UNITS_MM = 21,
};

enum sim_interpreter_distance_mode {
    SIM_INTERP_ABSOLUTE = 90,
    SIM_INTERP_INCREMENTAL = 91,
};

typedef struct sim_interpreter_state {
    double x;
    double y;
    double z;
    double a;
    double b;
    double c;
    double u;
    double v;
    double w;
    double feed;
    double speed;
    uint32_t line;
    int units;
    int distance_mode;
    int plane;
    int motion_mode;
    int spindle_mode;
    int program_end;
    int status;
} sim_interpreter_state;

#define SIM_INTERPRETER_CANONICAL_CAPACITY 512u

typedef struct sim_interpreter {
    sim_interpreter_state state;
    uint64_t block_hash;
    uint32_t canonical_length;
    char canonical[SIM_INTERPRETER_CANONICAL_CAPACITY];
} sim_interpreter;

int sim_interpreter_init(sim_interpreter *interpreter);
int sim_interpreter_reset(sim_interpreter *interpreter);
int sim_interpreter_execute(sim_interpreter *interpreter, const char *block, uint32_t length);
int sim_interpreter_read_state(const sim_interpreter *interpreter, sim_interpreter_state *state);
uint32_t sim_interpreter_canonical(const sim_interpreter *interpreter, char *output, uint32_t capacity);
uint64_t sim_interpreter_state_hash(const sim_interpreter *interpreter);
uint64_t sim_interpreter_block_hash(const sim_interpreter *interpreter);

#ifdef __cplusplus
}
#endif

#endif