#ifndef CONFIG_H
#define CONFIG_H

#include <stdint.h>
#include <xkbcommon/xkbcommon.h>

#define MOD_CTRL  (1u << 0)
#define MOD_SHIFT (1u << 1)
#define MOD_ALT   (1u << 2)
#define MOD_SUPER (1u << 3)

typedef enum {
    ACTION_NONE = 0,
    ACTION_QUIT,
    ACTION_CANCEL,
    ACTION_ROTATE,
    ACTION_SELECT_GLIDER,
    ACTION_SELECT_BLINKER,
    ACTION_SELECT_BLOCK,
    ACTION_SELECT_TOAD,
    ACTION_SELECT_BEACON,
    ACTION_SELECT_BOAT,
    ACTION_SELECT_TUB,
    ACTION_SELECT_BEEHIVE,
    ACTION_SELECT_RPENTOMINO,
    ACTION_SELECT_ACORN,
    ACTION_CLEAR,
    ACTION_PAUSE,
    ACTION_STEP,
    ACTION_SPEED_UP,
    ACTION_SPEED_DOWN,
    ACTION_TOGGLE_GRID,
} action_t;

typedef struct {
    uint32_t mods;
    xkb_keysym_t keysym;
    action_t action;
} binding_t;

typedef struct {
    binding_t *items;
    int count;
    int capacity;
} config_t;

/* Built-in defaults. */
config_t config_defaults(void);

/* Ensure config file exists; create with defaults if missing. Returns 0 on success. */
int config_ensure_default_file(const char *path);

/* Load config from path, merging over defaults. */
config_t config_load(const char *path);

void config_free(config_t *cfg);

/* Lookup action for a key press. Returns ACTION_NONE if no binding. */
action_t config_lookup(const config_t *cfg, uint32_t mods, xkb_keysym_t keysym);

/* Helpers exposed for tests. */
int config_parse_mods(const char *s, uint32_t *out_mods, char **out_key);
action_t config_parse_action(const char *s);

#endif