Created bot

1 files changed, 359 insertions, 0 deletions

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+#include "advice.h"
+#include <algorithm>
+#include <iostream>
+#include <vector>
+#include <deque>
+#include <curl_easy.h>
+#include <curl_header.h>
+#include <sstream>
+#include <list>
+#include <chrono>
+#include <thread>
+#include <yaml-cpp/yaml.h>
+
+advice::advice(
+  std::string configFile,
+  std::mt19937& rng) :
+    rng_(rng)
+{
+  // Load the config file.
+  YAML::Node config = YAML::LoadFile(configFile);
+
+  // Set up the Twitter client.
+  twitter::auth auth;
+  auth.setConsumerKey(config["consumer_key"].as<std::string>());
+  auth.setConsumerSecret(config["consumer_secret"].as<std::string>());
+  auth.setAccessKey(config["access_key"].as<std::string>());
+  auth.setAccessSecret(config["access_secret"].as<std::string>());
+
+  client_ = std::unique_ptr<twitter::client>(new twitter::client(auth));
+
+  // Set up the verbly database.
+  database_ = std::unique_ptr<verbly::database>(new verbly::database(config["verbly_datafile"].as<std::string>()));
+
+  // Set up the sentence generator.
+  generator_ = std::unique_ptr<sentence>(new sentence(*database_, rng_));
+}
+
+verbly::word advice::generateImageNoun() const
+{
+  verbly::filter whitelist =
+    (verbly::notion::wnid == 109287968)    // Geological formations
+    || (verbly::notion::wnid == 109208496) // Asterisms (collections of stars)
+    || (verbly::notion::wnid == 109239740) // Celestial bodies
+    || (verbly::notion::wnid == 109277686) // Exterrestrial objects (comets and meteroids)
+    || (verbly::notion::wnid == 109403211) // Radiators (supposedly natural radiators but actually these are just pictures of radiators)
+    || (verbly::notion::wnid == 109416076) // Rocks
+    || (verbly::notion::wnid == 105442131) // Chromosomes
+    || (verbly::notion::wnid == 100324978) // Tightrope walking
+    || (verbly::notion::wnid == 100326094) // Rock climbing
+    || (verbly::notion::wnid == 100433458) // Contact sports
+    || (verbly::notion::wnid == 100433802) // Gymnastics
+    || (verbly::notion::wnid == 100439826) // Track and field
+    || (verbly::notion::wnid == 100440747) // Skiing
+    || (verbly::notion::wnid == 100441824) // Water sport
+    || (verbly::notion::wnid == 100445351) // Rowing
+    || (verbly::notion::wnid == 100446980) // Archery
+      // TODO: add more sports
+    || (verbly::notion::wnid == 100021939) // Artifacts
+    || (verbly::notion::wnid == 101471682) // Vertebrates
+      ;
+
+  verbly::filter blacklist =
+    (verbly::notion::wnid == 106883725) // swastika
+    || (verbly::notion::wnid == 104416901) // tetraskele
+    || (verbly::notion::wnid == 102512053) // fish
+    || (verbly::notion::wnid == 103575691) // instrument of execution
+      ;
+
+  verbly::query<verbly::word> pictureQuery = database_->words(
+    (verbly::notion::fullHypernyms %= whitelist)
+    && !(verbly::notion::fullHypernyms %= blacklist)
+    && (verbly::notion::partOfSpeech == verbly::part_of_speech::noun)
+    && (verbly::notion::numOfImages >= 1));
+
+  return pictureQuery.first();
+}
+
+Magick::Image advice::getImageForNoun(verbly::word pictured) const
+{
+  // Accept string from Google Chrome
+  std::string accept = "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
+  curl::curl_header headers;
+  headers.add(accept);
+
+  int backoff = 0;
+
+  std::cout << "Generating noun..." << std::endl;
+  std::cout << "Noun: " << pictured.getBaseForm() << std::endl;
+  std::cout << "Getting URLs..." << std::endl;
+
+  std::string lstdata;
+  while (lstdata.empty())
+  {
+    std::ostringstream lstbuf;
+    curl::curl_ios<std::ostringstream> lstios(lstbuf);
+    curl::curl_easy lsthandle(lstios);
+    std::string lsturl = pictured.getNotion().getImageNetUrl();
+    lsthandle.add<CURLOPT_URL>(lsturl.c_str());
+
+    try
+    {
+      lsthandle.perform();
+    } catch (const curl::curl_easy_exception& e)
+    {
+      e.print_traceback();
+
+      backoff++;
+      std::cout << "Waiting for " << backoff << " seconds..." << std::endl;
+
+      std::this_thread::sleep_for(std::chrono::seconds(backoff));
+
+      continue;
+    }
+
+    backoff = 0;
+
+    if (lsthandle.get_info<CURLINFO_RESPONSE_CODE>().get() != 200)
+    {
+      throw could_not_get_images();
+    }
+
+    std::cout << "Got URLs." << std::endl;
+    lstdata = lstbuf.str();
+  }
+
+  std::vector<std::string> lstvec = verbly::split<std::vector<std::string>>(lstdata, "\r\n");
+  if (lstvec.empty())
+  {
+    throw could_not_get_images();
+  }
+
+  std::shuffle(std::begin(lstvec), std::end(lstvec), rng_);
+
+  std::deque<std::string> urls;
+  for (std::string& url : lstvec)
+  {
+    urls.push_back(url);
+  }
+
+  bool found = false;
+  Magick::Blob img;
+  Magick::Image pic;
+
+  while (!found && !urls.empty())
+  {
+    std::string url = urls.front();
+    urls.pop_front();
+
+    std::ostringstream imgbuf;
+    curl::curl_ios<std::ostringstream> imgios(imgbuf);
+    curl::curl_easy imghandle(imgios);
+
+    imghandle.add<CURLOPT_HTTPHEADER>(headers.get());
+    imghandle.add<CURLOPT_URL>(url.c_str());
+    imghandle.add<CURLOPT_CONNECTTIMEOUT>(30);
+
+    try
+    {
+      imghandle.perform();
+    } catch (curl::curl_easy_exception error) {
+      error.print_traceback();
+
+      continue;
+    }
+
+    if (imghandle.get_info<CURLINFO_RESPONSE_CODE>().get() != 200)
+    {
+      continue;
+    }
+
+    std::string content_type = imghandle.get_info<CURLINFO_CONTENT_TYPE>().get();
+    if (content_type.substr(0, 6) != "image/")
+    {
+      continue;
+    }
+
+    std::string imgstr = imgbuf.str();
+    img = Magick::Blob(imgstr.c_str(), imgstr.length());
+    pic.read(img);
+    if (pic.rows() == 0)
+    {
+      continue;
+    }
+
+    // Too small!
+    if (pic.columns() < 400)
+    {
+      continue;
+    }
+
+    std::cout << url << std::endl;
+    found = true;
+  }
+
+  if (!found)
+  {
+    throw could_not_get_images();
+  }
+
+  return pic;
+}
+
+Magick::Image advice::layoutImage(Magick::Image pic, std::string title) const
+{
+  // Want a 16:9 aspect
+  int idealwidth = pic.rows()*(16.0/9.0);
+  if (idealwidth > pic.columns())
+  {
+    // If the image is narrower than the ideal width, use full width.
+    int newheight = pic.columns()*(9.0/16.0);
+
+    // Just take a slice out of the middle of the image.
+    int cropy = ((double)(pic.rows() - newheight))/2.0;
+
+    pic.crop(Magick::Geometry(pic.columns(), newheight, 0, cropy));
+  } else {
+    // If the image is wider than the ideal width, use full height.
+    // Just take a slice out of the middle of the image.
+    int cropx = ((double)(pic.columns() - idealwidth))/2.0;
+
+    pic.crop(Magick::Geometry(idealwidth, pic.rows(), cropx, 0));
+  }
+
+  pic.zoom(Magick::Geometry(400, 225));
+
+  // Layout the text.
+  std::list<std::string> words = verbly::split<std::list<std::string>>(title, " ");
+  std::vector<std::string> lines;
+  std::list<std::string> cur;
+  Magick::TypeMetric metric;
+  pic.fontPointsize(20);
+  pic.font("@coolvetica.ttf");
+
+  while (!words.empty())
+  {
+    cur.push_back(words.front());
+
+    std::string prefixText = verbly::implode(std::begin(cur), std::end(cur), " ");
+    pic.fontTypeMetrics(prefixText, &metric);
+
+    if (metric.textWidth() > 380)
+    {
+      if (cur.size() == 1)
+      {
+        words.pop_front();
+      } else {
+        cur.pop_back();
+      }
+
+      prefixText = verbly::implode(std::begin(cur), std::end(cur), " ");
+      lines.push_back(prefixText);
+      cur.clear();
+    } else {
+      words.pop_front();
+    }
+  }
+
+  if (!cur.empty())
+  {
+    std::string prefixText = verbly::implode(std::begin(cur), std::end(cur), " ");
+    lines.push_back(prefixText);
+  }
+
+  int lineHeight = metric.textHeight()-2;
+  int blockHeight = lineHeight * lines.size() + 18;
+  std::cout << "line " << lineHeight << "; block " << blockHeight << std::endl;
+
+  std::list<Magick::Drawable> drawList;
+  drawList.push_back(Magick::DrawableFillColor("black"));
+  drawList.push_back(Magick::DrawableFillOpacity(0.5));
+  drawList.push_back(Magick::DrawableStrokeColor("transparent"));
+  drawList.push_back(Magick::DrawableRectangle(0, 225-blockHeight-20, 400, 255)); // 0, 225-60, 400, 255
+  pic.draw(drawList);
+
+  drawList.clear();
+  drawList.push_back(Magick::DrawableFont("@coolvetica.ttf"));
+  drawList.push_back(Magick::DrawableFillColor("white"));
+  drawList.push_back(Magick::DrawablePointSize(14));
+  drawList.push_back(Magick::DrawableText(10, 225-blockHeight+4, "How to")); // 10, 255-62-4
+  pic.draw(drawList);
+
+  for (int i=0; i<lines.size(); i++)
+  {
+    drawList.clear();
+    drawList.push_back(Magick::DrawableFont("@coolvetica.ttf"));
+    drawList.push_back(Magick::DrawableFillColor("white"));
+    drawList.push_back(Magick::DrawablePointSize(20));
+    drawList.push_back(Magick::DrawableText(10, 255-blockHeight+(i*lineHeight)-4, lines[i])); // 10, 255-20-25
+    pic.draw(drawList);
+  }
+
+  return pic;
+}
+
+void advice::sendTweet(Magick::Image pic, std::string title) const
+{
+  Magick::Blob outputimg;
+
+  try
+  {
+    pic.magick("png");
+    pic.write(&outputimg);
+  } catch (const Magick::WarningCoder& e)
+  {
+    // Ignore
+  }
+
+  std::cout << "Generated image!" << std::endl << "Tweeting..." << std::endl;
+
+  std::string tweetText;
+  size_t tweetLim = 140 - client_->getConfiguration().getCharactersReservedPerMedia();
+  if (title.length() > tweetLim)
+  {
+    tweetText = title.substr(0, tweetLim - 1) + "…";
+  } else {
+    tweetText = title;
+  }
+
+  long media_id = client_->uploadMedia("image/png", (const char*) outputimg.data(), outputimg.length());
+  client_->updateStatus(tweetText, {media_id});
+}
+
+void advice::run() const
+{
+  for (;;)
+  {
+    try
+    {
+      // Pick a noun to use for the picture.
+      verbly::word pictured = generateImageNoun();
+
+      // Find an image of the picked noun.
+      Magick::Image pic = getImageForNoun(pictured);
+
+      // Generate the image text.
+      std::string title = generator_->generate();
+
+      // Layout the image.
+      Magick::Image output = layoutImage(std::move(pic), title);
+
+      // Tweet the image.
+      sendTweet(std::move(output), title);
+
+      std::cout << "Done!" << std::endl << "Waiting..." << std::endl << std::endl;
+
+      // Wait.
+      std::this_thread::sleep_for(std::chrono::hours(1));
+    } catch (const could_not_get_images& ex)
+    {
+      std::cout << ex.what() << std::endl;
+    } catch (const Magick::ErrorImage& ex)
+    {
+      std::cout << "Image error: " << ex.what() << std::endl;
+    } catch (const twitter::twitter_error& ex)
+    {
+      std::cout << "Twitter error: " << ex.what() << std::endl;
+    }
+  }
+}