/*
 * Copyright (C) 2015  Patrick "P. J." McDermott
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

#ifndef _SCRIPTING_FFI_H_
#define _SCRIPTING_FFI_H_

#include "../resources/script.h"

struct ffi_function {
	const char *name;
	struct ffi_namespace *ns;
	int call_arg_index;
	void (*func)(struct ffi_function *);
	struct ffi_function *next;
};
struct ffi_namespace {
	const char *name;
	char *full_name;
	struct ffi_namespace *ns_head;
	struct ffi_namespace *ns_tail;
	struct ffi_function *fn_head;
	struct ffi_function *fn_tail;
	struct ffi_namespace *next;
};

struct ffi_namespace *ffi_add_namespace(struct ffi_namespace *parent,
		const char *name);
void ffi_add_function(struct ffi_namespace *parent, const char *name,
		void (*func)(struct ffi_function *));
void ffi_register_functions(struct script *script);
void ffi_context_switch(struct script *script);
int ffi_stack_get_bool(struct ffi_function *fn);
int ffi_stack_get_int(struct ffi_function *fn);
double ffi_stack_get_float(struct ffi_function *fn);
const char *ffi_stack_get_string(struct ffi_function *fn);
void ffi_prepare_call(const char *func);
void ffi_stack_set_bool(int v);
void ffi_stack_set_int(int v);
void ffi_stack_set_float(double v);
void ffi_stack_set_string(const char *v);
void ffi_call(void);

#endif