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#include <cerrno>
#include <cctype>
#include <cstring>
#include <iostream>
#include <string>
#include "workflow/WFRedisSubscriber.h"
#include "workflow/WFFacilities.h"
#include "workflow/StringUtil.h"
void extract(WFRedisSubscribeTask *task)
{
auto *resp = task->get_resp();
protocol::RedisValue value;
resp->get_result(value);
if (value.is_array())
{
for (size_t i = 0; i < value.arr_size(); i++)
{
if (value[i].is_string())
std::cout << value[i].string_value();
else if (value[i].is_int())
std::cout << value[i].int_value();
else if (value[i].is_nil())
std::cout << "nil";
else
std::cout << "Unexpected value in array!";
std::cout << "\n";
}
}
else
std::cout << "Unexpected value!\n";
}
int main(int argc, char *argv[])
{
if (argc < 3)
{
std::cerr << argv[0] << " <URL> <Channel> [<Channel>]..." << std::endl;
exit(1);
}
std::string url = argv[1];
if (strncasecmp(argv[1], "redis://", 8) != 0 &&
strncasecmp(argv[1], "rediss://", 9) != 0)
{
url = "redis://" + url;
}
WFRedisSubscriber suber;
if (suber.init(url) != 0)
{
std::cerr << "Subscriber init failed " << strerror(errno) << std::endl;
exit(1);
}
std::vector<std::string> channels;
for (int i = 2; i < argc; i++)
channels.push_back(argv[i]);
WFFacilities::WaitGroup wg(1);
bool finished = false;
auto callback = [&](WFRedisSubscribeTask *task)
{
std::cout << "state = " << task->get_state()
<< ", error = " << task->get_error() << std::endl;
finished = true;
wg.done();
};
WFRedisSubscribeTask *task;
task = suber.create_subscribe_task(channels, extract, callback);
task->set_watch_timeout(1000000);
task->start();
std::string line;
while (!finished)
{
std::string cmd;
std::vector<std::string> params;
if (std::getline(std::cin, line))
{
if (line.empty())
continue;
params = StringUtil::split_filter_empty(line, ' ');
}
if (finished)
break;
if (params.empty())
{
task->unsubscribe();
task->punsubscribe();
break;
}
cmd = params[0];
params.erase(params.begin());
for (char &c : cmd)
c = std::toupper(c);
int ret;
if (cmd == "SUBSCRIBE")
ret = task->subscribe(params);
else if (cmd == "UNSUBSCRIBE")
ret = task->unsubscribe(params);
else if (cmd == "PSUBSCRIBE")
ret = task->psubscribe(params);
else if (cmd == "PUNSUBSCRIBE")
ret = task->punsubscribe(params);
else if (cmd == "PING")
{
if (params.empty())
ret = task->ping();
else
ret = task->ping(params[0]);
}
else if (cmd == "QUIT")
ret = task->quit();
else
{
std::cerr << "Invalid command " << cmd << std::endl;
ret = 0;
}
if (ret < 0)
{
std::cerr << "Send command failed " << strerror(errno) << std::endl;
break;
}
}
task->release();
wg.wait();
suber.deinit();
return 0;
}
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