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#include <twitter.h>
#include <random>
#include <yaml-cpp/yaml.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <string>
#include <algorithm>
#include <set>
#include <list>
#include <iterator>
#include <verbly.h>
#include <hkutil/string.h>
// Sync followers every 4 hours.
const int CHECK_FOLLOWERS_EVERY = 4 * 60 / 5;
verbly::word findWordOfType(
verbly::database& database,
std::string form,
verbly::part_of_speech partOfSpeech)
{
std::vector<verbly::word> isThing = database.words(
(verbly::notion::partOfSpeech == partOfSpeech)
&& (verbly::form::text == form)).all();
if (isThing.empty())
{
return {};
} else {
return isThing.front();
}
}
int main(int argc, char** argv)
{
std::random_device randomDevice;
std::mt19937 rng{randomDevice()};
if (argc != 2)
{
std::cout << "usage: father [configfile]" << std::endl;
return -1;
}
std::string configfile(argv[1]);
YAML::Node config = YAML::LoadFile(configfile);
verbly::database database(config["verbly_datafile"].as<std::string>());
twitter::auth auth(
config["consumer_key"].as<std::string>(),
config["consumer_secret"].as<std::string>(),
config["access_key"].as<std::string>(),
config["access_secret"].as<std::string>());
auto startedTime = std::chrono::system_clock::now();
twitter::client client(auth);
std::set<twitter::user_id> friends;
int followerTimeout = 0;
for (;;)
{
if (followerTimeout == 0)
{
// Sync friends with followers.
try
{
friends = client.getFriends();
std::set<twitter::user_id> followers = client.getFollowers();
std::list<twitter::user_id> oldFriends;
std::set_difference(
std::begin(friends),
std::end(friends),
std::begin(followers),
std::end(followers),
std::back_inserter(oldFriends));
std::set<twitter::user_id> newFollowers;
std::set_difference(
std::begin(followers),
std::end(followers),
std::begin(friends),
std::end(friends),
std::inserter(newFollowers, std::begin(newFollowers)));
for (twitter::user_id f : oldFriends)
{
client.unfollow(f);
}
std::list<twitter::user> newFollowerObjs =
client.hydrateUsers(std::move(newFollowers));
for (twitter::user f : newFollowerObjs)
{
if (!f.isProtected())
{
client.follow(f);
}
}
} catch (const twitter::twitter_error& error)
{
std::cout << "Twitter error while syncing followers: " << error.what()
<< std::endl;
}
followerTimeout = CHECK_FOLLOWERS_EVERY;
}
followerTimeout--;
try
{
// Poll the timeline.
std::list<twitter::tweet> tweets = client.getHomeTimeline().poll();
for (twitter::tweet& tweet : tweets)
{
auto createdTime =
std::chrono::system_clock::from_time_t(tweet.getCreatedAt());
if (
// Only monitor people you are following
friends.count(tweet.getAuthor().getID())
// Ignore tweets from before the bot started up
&& createdTime > startedTime
// Ignore retweets
&& !tweet.isRetweet()
// Ignore messages
&& tweet.getText().front() != '@')
{
std::vector<std::string> tokens =
hatkirby::split<std::vector<std::string>>(tweet.getText(), " ");
std::vector<std::string> canonical;
for (std::string token : tokens)
{
std::string canonStr;
for (char ch : token)
{
if (std::isalpha(ch))
{
canonStr += std::tolower(ch);
}
}
canonical.push_back(canonStr);
}
std::vector<std::string>::iterator imIt =
std::find(std::begin(canonical), std::end(canonical), "im");
if (imIt != std::end(canonical))
{
imIt++;
if (imIt != std::end(canonical))
{
verbly::token name;
verbly::word firstAdverb = findWordOfType(
database,
*imIt,
verbly::part_of_speech::adverb);
if (firstAdverb.isValid())
{
std::vector<std::string>::iterator adjIt = imIt;
adjIt++;
if (adjIt != std::end(canonical))
{
verbly::word secondAdjective = findWordOfType(
database,
*adjIt,
verbly::part_of_speech::adjective);
if (secondAdjective.isValid())
{
name << firstAdverb;
name << secondAdjective;
}
}
}
if (name.isEmpty())
{
verbly::word firstAdjective = findWordOfType(
database,
*imIt,
verbly::part_of_speech::adjective);
if (firstAdjective.isValid())
{
name = firstAdjective;
}
}
if ((!name.isEmpty())
&& (std::bernoulli_distribution(1.0/10.0)(rng)))
{
verbly::token action = {
"Hi",
verbly::token::punctuation(",",
verbly::token::capitalize(
verbly::token::casing::title_case,
name)),
"I'm Dad."};
std::string result =
tweet.generateReplyPrefill(client.getUser())
+ action.compile();
std::cout << result << std::endl;
if (result.length() <= 140)
{
try
{
client.replyToTweet(result, tweet);
} catch (const twitter::twitter_error& e)
{
std::cout << "Twitter error while tweeting: " << e.what()
<< std::endl;
}
}
}
}
}
}
}
} catch (const twitter::rate_limit_exceeded&)
{
// Wait out the rate limit (10 minutes here and 5 below = 15).
std::this_thread::sleep_for(std::chrono::minutes(10));
}
// We can poll the timeline at most once every five minutes.
std::this_thread::sleep_for(std::chrono::minutes(5));
}
}
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