#include <node_api.h>

// Empty value so that macros here are able to return NULL or void
#define NAPI_RETVAL_NOTHING // Intentionally blank #define

#define GET_AND_THROW_LAST_ERROR(env)                                                                                          \
    do                                                                                                                         \
    {                                                                                                                          \
        const napi_extended_error_info *error_info;                                                                            \
        napi_get_last_error_info((env), &error_info);                                                                          \
        bool is_pending;                                                                                                       \
        napi_is_exception_pending((env), &is_pending);                                                                         \
        /* If an exception is already pending, don't rethrow it */                                                             \
        if (!is_pending)                                                                                                       \
        {                                                                                                                      \
            const char *error_message = error_info->error_message != NULL ? error_info->error_message : "empty error message"; \
            napi_throw_error((env), NULL, error_message);                                                                      \
        }                                                                                                                      \
    } while (0)

#define NAPI_ASSERT_BASE(env, assertion, message, ret_val)      \
    do                                                          \
    {                                                           \
        if (!(assertion))                                       \
        {                                                       \
            napi_throw_error(                                   \
                (env),                                          \
                NULL,                                           \
                "assertion (" #assertion ") failed: " message); \
            return ret_val;                                     \
        }                                                       \
    } while (0)

// Returns NULL on failed assertion.
// This is meant to be used inside napi_callback methods.
#define NAPI_ASSERT(env, assertion, message) \
    NAPI_ASSERT_BASE(env, assertion, message, NULL)

#define NAPI_CALL_BASE(env, the_call, ret_val) \
    do                                         \
    {                                          \
        if ((the_call) != napi_ok)             \
        {                                      \
            GET_AND_THROW_LAST_ERROR((env));   \
            return ret_val;                    \
        }                                      \
    } while (0)

// Returns NULL if the_call doesn't return napi_ok.
#define NAPI_CALL(env, the_call) \
    NAPI_CALL_BASE(env, the_call, NULL)

// Returns empty if the_call doesn't return napi_ok.
#define NAPI_CALL_RETURN_VOID(env, the_call) \
    NAPI_CALL_BASE(env, the_call, NAPI_RETVAL_NOTHING)

#define DECLARE_NAPI_PROPERTY(name, func)                          \
    {                                                              \
        (name), NULL, (func), NULL, NULL, NULL, napi_default, NULL \
    }