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/*
* NetCosm - a MUD server
* Copyright (C) 2016 Franklin Wei
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "globals.h"
#include "server.h"
#include "server_reqs.h"
#include "hash.h"
#include "multimap.h"
#include "userdb.h"
#include "world.h"
/* world modules should only call the functions provided in this
* structure, and those in the standard library */
struct world_api {
/* object */
struct object_t *(*obj_new)(const char *class);
struct object_t *(*obj_dup)(struct object_t *obj); // inc. ref. count
struct object_t *(*obj_copy)(struct object_t *obj); // full copy
void (*obj_free)(void*);
/* room */
void (*room_user_teleport)(user_t *child, room_id id);
bool (*room_obj_add)(room_id room, struct object_t*);
bool (*room_obj_add_alias)(room_id room, struct object_t*, const char *alias);
bool (*room_obj_del)(room_id room, const char *name);
bool (*room_obj_del_by_ptr)(room_id room, struct object_t *obj);
const struct multimap_list *(*room_obj_get)(room_id room, const char *obj);
const struct multimap_list *(*room_obj_get_size)(room_id room, const char *name, size_t *n_objs);
size_t (*room_obj_count)(room_id room);
size_t (*room_obj_count_noalias)(room_id id); // doesn't count aliases
bool (*room_verb_add)(room_id room, struct verb_t*);
bool (*room_verb_del)(room_id room, const char *verbname);
void *(*room_verb_map)(room_id room); // hash map of local verbs
struct room_t *(*room_get)(room_id id);
room_id (*room_get_id)(const char *name);
/* world */
bool (*world_verb_add)(struct verb_t*);
bool (*world_verb_del)(struct verb_t*);
void *(*world_verb_map)(void); // gets hash map of global verbs
/* verb */
struct verb_t *(*verb_new)(const char *class);
void (*verb_free)(void *verb);
/* hash map */
unsigned (*hash_djb)(const void*);
int (*compare_strings)(const void*, const void*);
int (*compare_strings_nocase)(const void*, const void*);
void *(*hash_init)(size_t tabsz, unsigned (*hash_fn)(const void *key),
int (*compare_key)(const void*, const void*));
void (*hash_setfreedata_cb)(void*, void (*cb)(void *data));
void (*hash_setfreekey_cb)(void*, void (*cb)(void *key));
void (*hash_free)(void*);
void *(*hash_insert)(void*, const void *key, const void *data);
void (*hash_overwrite)(void*, const void *key, const void *data);
void *(*hash_lookup)(void*, const void *key);
bool (*hash_remove)(void *ptr, const void *key);
void *(*hash_iterate)(void *map, void **saved, void **keyptr);
void (*hash_insert_pairs)(void*, const struct hash_pair*, size_t pairsize, size_t n);
void *(*hash_getkeyptr)(void*, const void *key);
void *(*hash_dup)(void*);
void (*hash_setdupdata_cb)(void*, void *(*cb)(void*));
/* multimap */
void *(*multimap_init)(size_t tabsz,
unsigned (*hash_fn)(const void *key),
int (*compare_key)(const void *key_a, const void *key_b),
int (*compare_val)(const void *val_a, const void *val_b));
void (*multimap_free)(void*);
const struct multimap_list *(*multimap_lookup)(void *map, const void *key, size_t *n_pairs);
bool (*multimap_insert)(void *map, const void *key, const void *val);
size_t (*multimap_delete)(void *map, const void *key, const void *val);
size_t (*multimap_delete_all)(void *map, const void *key);
/* returns a linked list, NOT individual items of a linked list */
const struct multimap_list *(*multimap_iterate)(const void *map, void **save, size_t *n_pairs);
size_t (*multimap_size)(void *map);
void (*multimap_setfreedata_cb)(void *map, void (*)(void*));
void *(*multimap_dup)(void *ptr);
void (*multimap_setdupdata_cb)(void *ptr, void *(*cb)(void *ptr));
void *(*multimap_copy)(void *ptr);
/* server */
void (*send_msg)(user_t *child, const char *fmt, ...) __attribute__((format(printf,2,3)));
void (*child_toggle_rawmode)(user_t *child, void (*cb)(user_t*, char *data, size_t len));
/* userdb */
struct userdata_t *(*userdb_lookup)(const char *username);
bool (*userdb_remove)(const char *username);
size_t (*userdb_size)(void);
bool (*userdb_add)(struct userdata_t*);
/* (*save) should be set to NULL on the first run */
struct userdata_t *(*userdb_iterate)(void **save);
bool (*userdb_add_obj)(const char *username, struct object_t *obj);
bool (*userdb_del_obj)(const char *username, const char *obj_name);
bool (*userdb_del_obj_by_ptr)(const char *username, struct object_t *obj);
/* util */
void (*error)(const char *fmt, ...) __attribute__((noreturn,format(printf,1,2)));
void (*all_upper)(char*);
void (*all_lower)(char*);
void (*write_string)(int fd, const char *str);
char* (*read_string)(int fd);
void (*write_roomid)(int fd, room_id *id);
room_id (*read_roomid)(int fd);
void (*write_bool)(int fd, bool b);
bool (*read_bool)(int fd);
void (*write_uint32)(int fd, uint32_t i);
uint32_t (*read_uint32)(int fd);
void (*write_uint64)(int fd, uint64_t i);
uint64_t (*read_uint64)(int fd);
void (*write_size)(int fd, size_t);
size_t (*read_size)(int fd);
void (*write_int)(int fd, int i);
int (*read_int)(int fd);
bool (*is_vowel)(char c);
size_t (*strlcat)(char *dst, const char *src, size_t siz);
char *(*format_noun)(char *buf, size_t len, const char *name,
size_t count, bool default_article, bool capitalize);
};
/* defined in src/world_api.c */
extern const struct world_api *nc;
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