/* 
 * Copyright (C) 2026 Peter Mikkelsen <petermikkelsen10@gmail.com>
 *
 * This file is part of aplwc.
 *
 * Aplwc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Aplwc 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with aplwc.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef APLWC_H
#define APLWC_H

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

enum aplwc_rc {
	APLWC_OK,
	APLWC_OUT_OF_MEMORY,
	APLWC_NOT_YET_IMPLEMENTED,
	APLWC_INVALID_UTF8,
	APLWC_INVALID_SYNTAX,

	APLWC_RC_LAST = APLWC_INVALID_SYNTAX
};

struct aplwc;

struct aplwc_ref {
	struct aplwc *aplwc;
	void *ptr;
	struct aplwc_ref *link;
};

typedef struct { struct aplwc_ref ref; } AplwcLine;
typedef struct { struct aplwc_ref ref; } AplwcValue;

struct aplwc_fns {
	void *(*alloc)(size_t, size_t *);
	void (*dealloc)(void *);
	int (*hook_alloc)(void);
};

struct aplwc *aplwc_new(struct aplwc_fns, enum aplwc_rc *);
void aplwc_destroy(struct aplwc *);
void aplwc_clear_line(AplwcLine *);
void aplwc_clear_value(AplwcValue *);
int aplwc_valid_line(AplwcLine *);
int aplwc_valid_value(AplwcValue *);
const char *aplwc_errstr_rc(enum aplwc_rc);
const char *aplwc_errstr(struct aplwc *);
enum aplwc_rc aplwc_last_error(struct aplwc *);
void aplwc_read(struct aplwc *, const char *, AplwcLine *);
void aplwc_free_line(AplwcLine *);
void aplwc_eval(AplwcLine *, AplwcValue *);
void aplwc_free_value(AplwcValue *);
const char *aplwc_value_string(AplwcValue *);
enum aplwc_rc aplwc_load_module(struct aplwc *, const char *, const char *, int n);

#endif /* APLWC_H */