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// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
// This file is part of the "winapi-common" project.
// For details, see https://github.com/egor-tensin/winapi-common.
// Distributed under the MIT License.
#include "../shared/command.hpp"
#include "../shared/console.hpp"
#include "../shared/test_data.hpp"
#include <winapi/error.hpp>
#include <winapi/handle.hpp>
#include <windows.h>
#include <chrono>
#include <cstddef>
#include <exception>
#include <stdexcept>
#include <string>
#include <thread>
#include <vector>
using worker::Command;
namespace {
bool is_window_visible() {
HWND window = ::GetConsoleWindow();
if (window == NULL) {
return false;
}
const auto mask = ::GetWindowLongW(window, GWL_STYLE);
if (!mask) {
throw winapi::error::windows(GetLastError(), "GetWindowLongW");
}
return mask & WS_VISIBLE;
}
winapi::Handle write_to(winapi::Handle dest, const std::string& msg) {
try {
dest.write(msg + "\r\n");
} catch (const std::exception& e) {
return winapi::Handle{};
}
return dest;
}
std::vector<std::string> get_console_buffer(std::size_t numof_lines) {
return console::Buffer{}.read_last_lines(numof_lines);
}
void process_action(Command::Action action, const Command::Args& args, Command::Result& result) {
switch (action) {
case Command::EXIT:
break;
case Command::GET_CONSOLE_WINDOW:
result.console_window = ::GetConsoleWindow();
break;
case Command::IS_WINDOW_VISIBLE:
result.is_window_visible = is_window_visible();
break;
case Command::GET_STD_HANDLES:
result.std_handles.in = ::GetStdHandle(STD_INPUT_HANDLE);
result.std_handles.out = ::GetStdHandle(STD_OUTPUT_HANDLE);
result.std_handles.err = ::GetStdHandle(STD_ERROR_HANDLE);
break;
case Command::TEST_WRITE:
result.std_handles.in = winapi::Handle::std_in().get();
result.std_handles.out =
write_to(winapi::Handle::std_out(), worker::test_data::out()).get();
result.std_handles.err =
write_to(winapi::Handle::std_err(), worker::test_data::err()).get();
break;
case Command::GET_CONSOLE_BUFFER:
result.console_buffer =
result.console_buffer.convert(get_console_buffer(args.numof_lines));
break;
default:
throw std::runtime_error{"invalid worker command"};
}
}
int loop() {
auto exit_loop = false;
const auto cmd = Command::open();
while (!exit_loop) {
cmd->process_action([&exit_loop](Command::Action action,
const Command::Args& args,
Command::Result& result) {
if (action == Command::EXIT) {
exit_loop = true;
} else {
process_action(action, args, result);
}
});
}
return 0;
}
} // namespace
int main(int argc, char* argv[]) {
int ec = loop();
std::this_thread::sleep_for(std::chrono::milliseconds{1000});
return ec;
}
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