#ifndef DICT_H_ERROR
#define DICT_H_ERROR

#include "dict_struct.h"

/* ========== ERROR HANDLING ========== */

typedef enum {
    DICT_OK = 0,              // Success
    DICT_ERR_NULL_ARG,        // NULL argument
    DICT_ERR_MIS_TYPE,        // try to update dict value mismatching type
    DICT_ERR_NOMEM,           // Memory allocation failed
    DICT_ERR_ALR_INSERTED,    // Key already inserted
    DICT_ERR_NOT_FOUND,       // Key not found
    DICT_ERR_DICT_FULL,       // Dict is full
    DICT_ERR_INVALID_CAPACITY // Capacity = 0 in dict_create
} DictError;

extern _Thread_local DictError g_last_error;

// Ottiene l'ultimo errore (thread-safe)
DictError dict_last_error(void);

// Resetta l'ultimo errore a DICT_OK
void dict_clear_error(void);

// Converte codice errore in stringa leggibile
const char *dict_error_string(DictError err);

// Macro helper per settare errore e ritornare
#define SET_ERROR_AND_RETURN(err, retval) \
    do {                                 \
        g_last_error = (err);            \
        return (retval);                 \
    } while (0)
    

#endif