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#include "sap.h"
#include <yaml-cpp/yaml.h>
#include <thread>
#include <chrono>
#include <fstream>
#include <iostream>
#include <json.hpp>
/* - random frames from Spongebob (using ffmpeg)
* with strange text overlaid, possibly rawr'd from
* spongebob transcripts combined with drug trip
* experiences? either that or something with verb
* frames
*/
sap::sap(
std::string configFile,
std::mt19937& rng) :
rng_(rng)
{
// Load the config file.
YAML::Node config = YAML::LoadFile(configFile);
tempfile_ = config["tempfile"].as<std::string>();
// Set up the Mastodon client.
instance_ = std::make_unique<mastodonpp::Instance>(
config["mastodon_instance"].as<std::string>(),
config["mastodon_token"].as<std::string>());
connection_ = std::make_unique<mastodonpp::Connection>(*instance_);
// Set up the text generator.
for (const YAML::Node& corpusname : config["corpuses"])
{
std::ifstream infile(corpusname.as<std::string>());
std::string corpus;
std::string line;
while (getline(infile, line))
{
if (line.back() == '\r')
{
line.pop_back();
}
corpus += line + " ";
}
kgramstats_.addCorpus(corpus);
}
kgramstats_.compile(5);
kgramstats_.setMinCorpora(config["corpuses"].size());
// Set up the layout designer.
layout_ = std::unique_ptr<designer>(
new designer(config["fonts"].as<std::string>()));
// Set up the frame picker.
director_ = std::unique_ptr<director>(
new director(config["videos"].as<std::string>()));
}
void sap::run() const
{
for (;;)
{
std::cout << "Generating post..." << std::endl;
try
{
// Pick the video frame.
Magick::Image image = director_->generate(rng_);
// Generate the text.
std::uniform_int_distribution<size_t> lenDist(5, 19);
std::string action = kgramstats_.randomSentence(lenDist(rng_));
// Lay the text on the video frame.
Magick::Image textimage =
layout_->generate(image.columns(), image.rows(), action, rng_);
image.composite(textimage, 0, 0, Magick::OverCompositeOp);
// Send the tweet.
std::cout << "Sending tweet..." << std::endl;
sendTweet(std::move(image), action);
std::cout << "Tweeted!" << std::endl;
// Wait.
std::this_thread::sleep_for(std::chrono::hours(1));
} catch (const Magick::ErrorImage& ex)
{
std::cout << "Image error: " << ex.what() << std::endl;
}
std::cout << std::endl;
}
}
void sap::sendTweet(Magick::Image image, const std::string& text) const
{
image.magick("jpeg");
image.write(tempfile_);
auto answer{connection_->post(mastodonpp::API::v1::media,
{{"file", std::string("@file:") + tempfile_}, {"description", text}})};
if (!answer)
{
if (answer.curl_error_code == 0)
{
std::cout << "HTTP status: " << answer.http_status << std::endl;
}
else
{
std::cout << "libcurl error " << std::to_string(answer.curl_error_code)
<< ": " << answer.error_message << std::endl;
}
return;
}
nlohmann::json response_json = nlohmann::json::parse(answer.body);
answer = connection_->post(mastodonpp::API::v1::statuses,
{{"status", ""}, {"media_ids",
std::vector<std::string_view>{response_json["id"].get<std::string>()}}});
if (!answer)
{
if (answer.curl_error_code == 0)
{
std::cout << "HTTP status: " << answer.http_status << std::endl;
}
else
{
std::cout << "libcurl error " << std::to_string(answer.curl_error_code)
<< ": " << answer.error_message << std::endl;
}
}
}
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