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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* 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 2 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/>.
*/
/// \addtogroup Acored
/// @{
/// \file
#include "CliRunnable.h"
#include "Config.h"
#include "ObjectMgr.h"
#include "World.h"
#include <fmt/core.h>
#if AC_PLATFORM != AC_PLATFORM_WINDOWS
#include "Chat.h"
#include "ChatCommand.h"
#include <cstring>
#include <readline/history.h>
#include <readline/readline.h>
#endif
static constexpr char CLI_PREFIX[] = "AC> ";
static inline void PrintCliPrefix()
{
fmt::print(CLI_PREFIX);
}
#if AC_PLATFORM != AC_PLATFORM_WINDOWS
namespace Acore::Impl::Readline
{
static std::vector<std::string> vec;
char* cli_unpack_vector(char const*, int state)
{
static std::size_t i=0;
if (!state)
i = 0;
if (i < vec.size())
return strdup(vec[i++].c_str());
else
return nullptr;
}
char** cli_completion(char const* text, int /*start*/, int /*end*/)
{
::rl_attempted_completion_over = 1;
vec = Acore::ChatCommands::GetAutoCompletionsFor(CliHandler(nullptr,nullptr), text);
return ::rl_completion_matches(text, &cli_unpack_vector);
}
int cli_hook_func()
{
if (World::IsStopped())
::rl_done = 1;
return 0;
}
}
#endif
void utf8print(void* /*arg*/, std::string_view str)
{
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
fmt::print(str);
#else
{
fmt::print(str);
fflush(stdout);
}
#endif
}
void commandFinished(void*, bool /*success*/)
{
PrintCliPrefix();
fflush(stdout);
}
#ifdef linux
// Non-blocking keypress detector, when return pressed, return 1, else always return 0
int kb_hit_return()
{
struct timeval tv;
fd_set fds;
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&fds);
FD_SET(STDIN_FILENO, &fds);
select(STDIN_FILENO+1, &fds, nullptr, nullptr, &tv);
return FD_ISSET(STDIN_FILENO, &fds);
}
#endif
/// %Thread start
void CliThread()
{
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
// print this here the first time
// later it will be printed after command queue updates
PrintCliPrefix();
#else
::rl_attempted_completion_function = &Acore::Impl::Readline::cli_completion;
{
static char BLANK = '\0';
::rl_completer_word_break_characters = &BLANK;
}
::rl_event_hook = &Acore::Impl::Readline::cli_hook_func;
#endif
if (sConfigMgr->GetOption<bool>("BeepAtStart", true))
printf("\a"); // \a = Alert
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
if (sConfigMgr->GetOption<bool>("FlashAtStart", true))
{
FLASHWINFO fInfo;
fInfo.cbSize = sizeof(FLASHWINFO);
fInfo.dwFlags = FLASHW_TRAY | FLASHW_TIMERNOFG;
fInfo.hwnd = GetConsoleWindow();
fInfo.uCount = 0;
fInfo.dwTimeout = 0;
FlashWindowEx(&fInfo);
}
#endif
///- As long as the World is running (no World::m_stopEvent), get the command line and handle it
while (!World::IsStopped())
{
fflush(stdout);
std::string command;
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
wchar_t commandbuf[256];
if (fgetws(commandbuf, sizeof(commandbuf), stdin))
{
if (!WStrToUtf8(commandbuf, wcslen(commandbuf), command))
{
PrintCliPrefix();
continue;
}
}
#else
char* command_str = readline(CLI_PREFIX);
::rl_bind_key('\t', ::rl_complete);
if (command_str != nullptr)
{
command = command_str;
free(command_str);
}
#endif
if (!command.empty())
{
std::size_t nextLineIndex = command.find_first_of("\r\n");
if (nextLineIndex != std::string::npos)
{
if (nextLineIndex == 0)
{
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
PrintCliPrefix();
#endif
continue;
}
command.erase(nextLineIndex);
}
fflush(stdout);
sWorld->QueueCliCommand(new CliCommandHolder(nullptr, command.c_str(), &utf8print, &commandFinished));
#if AC_PLATFORM != AC_PLATFORM_WINDOWS
add_history(command.c_str());
#endif
}
else if (feof(stdin))
{
World::StopNow(SHUTDOWN_EXIT_CODE);
}
}
}
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