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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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 2.1 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "lua_api/l_rollback.h"
#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "server.h"
#include "rollback.h"
void push_RollbackNode(lua_State *L, RollbackNode &node)
{
lua_createtable(L, 0, 3);
lua_pushstring(L, node.name.c_str());
lua_setfield(L, -2, "name");
lua_pushnumber(L, node.param1);
lua_setfield(L, -2, "param1");
lua_pushnumber(L, node.param2);
lua_setfield(L, -2, "param2");
}
// rollback_get_node_actions(pos, range, seconds, limit) -> {{actor, pos, time, oldnode, newnode}, ...}
int ModApiRollback::l_rollback_get_node_actions(lua_State *L)
{
v3s16 pos = read_v3s16(L, 1);
int range = luaL_checknumber(L, 2);
time_t seconds = (time_t) luaL_checknumber(L, 3);
int limit = luaL_checknumber(L, 4);
Server *server = getServer(L);
IRollbackManager *rollback = server->getRollbackManager();
std::list<RollbackAction> actions = rollback->getNodeActors(pos, range, seconds, limit);
std::list<RollbackAction>::iterator iter = actions.begin();
lua_createtable(L, actions.size(), 0);
for (unsigned int i = 1; iter != actions.end(); ++iter, ++i) {
lua_createtable(L, 0, 5); // Make a table with enough space pre-allocated
lua_pushstring(L, iter->actor.c_str());
lua_setfield(L, -2, "actor");
push_v3s16(L, iter->p);
lua_setfield(L, -2, "pos");
lua_pushnumber(L, iter->unix_time);
lua_setfield(L, -2, "time");
push_RollbackNode(L, iter->n_old);
lua_setfield(L, -2, "oldnode");
push_RollbackNode(L, iter->n_new);
lua_setfield(L, -2, "newnode");
lua_rawseti(L, -2, i); // Add action table to main table
}
return 1;
}
// rollback_revert_actions_by(actor, seconds) -> bool, log messages
int ModApiRollback::l_rollback_revert_actions_by(lua_State *L)
{
std::string actor = luaL_checkstring(L, 1);
int seconds = luaL_checknumber(L, 2);
Server *server = getServer(L);
IRollbackManager *rollback = server->getRollbackManager();
std::list<RollbackAction> actions = rollback->getRevertActions(actor, seconds);
std::list<std::string> log;
bool success = server->rollbackRevertActions(actions, &log);
// Push boolean result
lua_pushboolean(L, success);
lua_createtable(L, log.size(), 0);
unsigned long i = 0;
for(std::list<std::string>::const_iterator iter = log.begin();
iter != log.end(); ++i, ++iter) {
lua_pushnumber(L, i);
lua_pushstring(L, iter->c_str());
lua_settable(L, -3);
}
return 2;
}
void ModApiRollback::Initialize(lua_State *L, int top)
{
API_FCT(rollback_get_node_actions);
API_FCT(rollback_revert_actions_by);
}
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