File syn_json_write.h

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#ifndef SYN_JSON_WRITE_H
#define SYN_JSON_WRITE_H

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/* ── Writer state ──────────────────────────────────────────────────────── */

#define SYN_JSON_MAX_DEPTH 8 
typedef struct {
    char *buf;        
    size_t capacity;  
    size_t len;       
    uint8_t depth;    
    bool needs_comma; 
    bool overflow;    
} SYN_JsonWriter;

/* ── Init ──────────────────────────────────────────────────────────────── */

void syn_json_init(SYN_JsonWriter *w, char *buf, size_t capacity);

/* ── Structure ─────────────────────────────────────────────────────────── */

void syn_json_obj_open(SYN_JsonWriter *w);

void syn_json_obj_close(SYN_JsonWriter *w);

void syn_json_arr_open(SYN_JsonWriter *w);

void syn_json_arr_close(SYN_JsonWriter *w);

/* ── Key-value pairs (inside objects) ──────────────────────────────────── */

void syn_json_key_str(SYN_JsonWriter *w, const char *key, const char *val);

void syn_json_key_int(SYN_JsonWriter *w, const char *key, int32_t val);

void syn_json_key_uint(SYN_JsonWriter *w, const char *key, uint32_t val);

void syn_json_key_bool(SYN_JsonWriter *w, const char *key, bool val);

void syn_json_key_null(SYN_JsonWriter *w, const char *key);

void syn_json_key(SYN_JsonWriter *w, const char *key);

/* ── Array values (inside arrays) ──────────────────────────────────────── */

void syn_json_val_str(SYN_JsonWriter *w, const char *val);

void syn_json_val_int(SYN_JsonWriter *w, int32_t val);

void syn_json_val_uint(SYN_JsonWriter *w, uint32_t val);

void syn_json_val_bool(SYN_JsonWriter *w, bool val);

/* ── Query ─────────────────────────────────────────────────────────────── */

static inline size_t syn_json_len(const SYN_JsonWriter *w)
{
    return w->len;
}

static inline const char *syn_json_str(const SYN_JsonWriter *w)
{
    return w->buf;
}

static inline bool syn_json_ok(const SYN_JsonWriter *w)
{
    return !w->overflow;
}

#ifdef __cplusplus
}
#endif

#endif /* SYN_JSON_WRITE_H */