diff options
Diffstat (limited to 'advice.cpp')
| -rw-r--r-- | advice.cpp | 359 | 
1 files changed, 359 insertions, 0 deletions
| diff --git a/advice.cpp b/advice.cpp new file mode 100644 index 0000000..320f719 --- /dev/null +++ b/advice.cpp | |||
| @@ -0,0 +1,359 @@ | |||
| 1 | #include "advice.h" | ||
| 2 | #include <algorithm> | ||
| 3 | #include <iostream> | ||
| 4 | #include <vector> | ||
| 5 | #include <deque> | ||
| 6 | #include <curl_easy.h> | ||
| 7 | #include <curl_header.h> | ||
| 8 | #include <sstream> | ||
| 9 | #include <list> | ||
| 10 | #include <chrono> | ||
| 11 | #include <thread> | ||
| 12 | #include <yaml-cpp/yaml.h> | ||
| 13 | |||
| 14 | advice::advice( | ||
| 15 | std::string configFile, | ||
| 16 | std::mt19937& rng) : | ||
| 17 | rng_(rng) | ||
| 18 | { | ||
| 19 | // Load the config file. | ||
| 20 | YAML::Node config = YAML::LoadFile(configFile); | ||
| 21 | |||
| 22 | // Set up the Twitter client. | ||
| 23 | twitter::auth auth; | ||
| 24 | auth.setConsumerKey(config["consumer_key"].as<std::string>()); | ||
| 25 | auth.setConsumerSecret(config["consumer_secret"].as<std::string>()); | ||
| 26 | auth.setAccessKey(config["access_key"].as<std::string>()); | ||
| 27 | auth.setAccessSecret(config["access_secret"].as<std::string>()); | ||
| 28 | |||
| 29 | client_ = std::unique_ptr<twitter::client>(new twitter::client(auth)); | ||
| 30 | |||
| 31 | // Set up the verbly database. | ||
| 32 | database_ = std::unique_ptr<verbly::database>(new verbly::database(config["verbly_datafile"].as<std::string>())); | ||
| 33 | |||
| 34 | // Set up the sentence generator. | ||
| 35 | generator_ = std::unique_ptr<sentence>(new sentence(*database_, rng_)); | ||
| 36 | } | ||
| 37 | |||
| 38 | verbly::word advice::generateImageNoun() const | ||
| 39 | { | ||
| 40 | verbly::filter whitelist = | ||
| 41 | (verbly::notion::wnid == 109287968) // Geological formations | ||
| 42 | || (verbly::notion::wnid == 109208496) // Asterisms (collections of stars) | ||
| 43 | || (verbly::notion::wnid == 109239740) // Celestial bodies | ||
| 44 | || (verbly::notion::wnid == 109277686) // Exterrestrial objects (comets and meteroids) | ||
| 45 | || (verbly::notion::wnid == 109403211) // Radiators (supposedly natural radiators but actually these are just pictures of radiators) | ||
| 46 | || (verbly::notion::wnid == 109416076) // Rocks | ||
| 47 | || (verbly::notion::wnid == 105442131) // Chromosomes | ||
| 48 | || (verbly::notion::wnid == 100324978) // Tightrope walking | ||
| 49 | || (verbly::notion::wnid == 100326094) // Rock climbing | ||
| 50 | || (verbly::notion::wnid == 100433458) // Contact sports | ||
| 51 | || (verbly::notion::wnid == 100433802) // Gymnastics | ||
| 52 | || (verbly::notion::wnid == 100439826) // Track and field | ||
| 53 | || (verbly::notion::wnid == 100440747) // Skiing | ||
| 54 | || (verbly::notion::wnid == 100441824) // Water sport | ||
| 55 | || (verbly::notion::wnid == 100445351) // Rowing | ||
| 56 | || (verbly::notion::wnid == 100446980) // Archery | ||
| 57 | // TODO: add more sports | ||
| 58 | || (verbly::notion::wnid == 100021939) // Artifacts | ||
| 59 | || (verbly::notion::wnid == 101471682) // Vertebrates | ||
| 60 | ; | ||
| 61 | |||
| 62 | verbly::filter blacklist = | ||
| 63 | (verbly::notion::wnid == 106883725) // swastika | ||
| 64 | || (verbly::notion::wnid == 104416901) // tetraskele | ||
| 65 | || (verbly::notion::wnid == 102512053) // fish | ||
| 66 | || (verbly::notion::wnid == 103575691) // instrument of execution | ||
| 67 | ; | ||
| 68 | |||
| 69 | verbly::query<verbly::word> pictureQuery = database_->words( | ||
| 70 | (verbly::notion::fullHypernyms %= whitelist) | ||
| 71 | && !(verbly::notion::fullHypernyms %= blacklist) | ||
| 72 | && (verbly::notion::partOfSpeech == verbly::part_of_speech::noun) | ||
| 73 | && (verbly::notion::numOfImages >= 1)); | ||
| 74 | |||
| 75 | return pictureQuery.first(); | ||
| 76 | } | ||
| 77 | |||
| 78 | Magick::Image advice::getImageForNoun(verbly::word pictured) const | ||
| 79 | { | ||
| 80 | // Accept string from Google Chrome | ||
| 81 | std::string accept = "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; | ||
| 82 | curl::curl_header headers; | ||
| 83 | headers.add(accept); | ||
| 84 | |||
| 85 | int backoff = 0; | ||
| 86 | |||
| 87 | std::cout << "Generating noun..." << std::endl; | ||
| 88 | std::cout << "Noun: " << pictured.getBaseForm() << std::endl; | ||
| 89 | std::cout << "Getting URLs..." << std::endl; | ||
| 90 | |||
| 91 | std::string lstdata; | ||
| 92 | while (lstdata.empty()) | ||
| 93 | { | ||
| 94 | std::ostringstream lstbuf; | ||
| 95 | curl::curl_ios<std::ostringstream> lstios(lstbuf); | ||
| 96 | curl::curl_easy lsthandle(lstios); | ||
| 97 | std::string lsturl = pictured.getNotion().getImageNetUrl(); | ||
| 98 | lsthandle.add<CURLOPT_URL>(lsturl.c_str()); | ||
| 99 | |||
| 100 | try | ||
| 101 | { | ||
| 102 | lsthandle.perform(); | ||
| 103 | } catch (const curl::curl_easy_exception& e) | ||
| 104 | { | ||
| 105 | e.print_traceback(); | ||
| 106 | |||
| 107 | backoff++; | ||
| 108 | std::cout << "Waiting for " << backoff << " seconds..." << std::endl; | ||
| 109 | |||
| 110 | std::this_thread::sleep_for(std::chrono::seconds(backoff)); | ||
| 111 | |||
| 112 | continue; | ||
| 113 | } | ||
| 114 | |||
| 115 | backoff = 0; | ||
| 116 | |||
| 117 | if (lsthandle.get_info<CURLINFO_RESPONSE_CODE>().get() != 200) | ||
| 118 | { | ||
| 119 | throw could_not_get_images(); | ||
| 120 | } | ||
| 121 | |||
| 122 | std::cout << "Got URLs." << std::endl; | ||
| 123 | lstdata = lstbuf.str(); | ||
| 124 | } | ||
| 125 | |||
| 126 | std::vector<std::string> lstvec = verbly::split<std::vector<std::string>>(lstdata, "\r\n"); | ||
| 127 | if (lstvec.empty()) | ||
| 128 | { | ||
| 129 | throw could_not_get_images(); | ||
| 130 | } | ||
| 131 | |||
| 132 | std::shuffle(std::begin(lstvec), std::end(lstvec), rng_); | ||
| 133 | |||
| 134 | std::deque<std::string> urls; | ||
| 135 | for (std::string& url : lstvec) | ||
| 136 | { | ||
| 137 | urls.push_back(url); | ||
| 138 | } | ||
| 139 | |||
| 140 | bool found = false; | ||
| 141 | Magick::Blob img; | ||
| 142 | Magick::Image pic; | ||
| 143 | |||
| 144 | while (!found && !urls.empty()) | ||
| 145 | { | ||
| 146 | std::string url = urls.front(); | ||
| 147 | urls.pop_front(); | ||
| 148 | |||
| 149 | std::ostringstream imgbuf; | ||
| 150 | curl::curl_ios<std::ostringstream> imgios(imgbuf); | ||
| 151 | curl::curl_easy imghandle(imgios); | ||
| 152 | |||
| 153 | imghandle.add<CURLOPT_HTTPHEADER>(headers.get()); | ||
| 154 | imghandle.add<CURLOPT_URL>(url.c_str()); | ||
| 155 | imghandle.add<CURLOPT_CONNECTTIMEOUT>(30); | ||
| 156 | |||
| 157 | try | ||
| 158 | { | ||
| 159 | imghandle.perform(); | ||
| 160 | } catch (curl::curl_easy_exception error) { | ||
| 161 | error.print_traceback(); | ||
| 162 | |||
| 163 | continue; | ||
| 164 | } | ||
| 165 | |||
| 166 | if (imghandle.get_info<CURLINFO_RESPONSE_CODE>().get() != 200) | ||
| 167 | { | ||
| 168 | continue; | ||
| 169 | } | ||
| 170 | |||
| 171 | std::string content_type = imghandle.get_info<CURLINFO_CONTENT_TYPE>().get(); | ||
| 172 | if (content_type.substr(0, 6) != "image/") | ||
| 173 | { | ||
| 174 | continue; | ||
| 175 | } | ||
| 176 | |||
| 177 | std::string imgstr = imgbuf.str(); | ||
| 178 | img = Magick::Blob(imgstr.c_str(), imgstr.length()); | ||
| 179 | pic.read(img); | ||
| 180 | if (pic.rows() == 0) | ||
| 181 | { | ||
| 182 | continue; | ||
| 183 | } | ||
| 184 | |||
| 185 | // Too small! | ||
| 186 | if (pic.columns() < 400) | ||
| 187 | { | ||
| 188 | continue; | ||
| 189 | } | ||
| 190 | |||
| 191 | std::cout << url << std::endl; | ||
| 192 | found = true; | ||
| 193 | } | ||
| 194 | |||
| 195 | if (!found) | ||
| 196 | { | ||
| 197 | throw could_not_get_images(); | ||
| 198 | } | ||
| 199 | |||
| 200 | return pic; | ||
| 201 | } | ||
| 202 | |||
| 203 | Magick::Image advice::layoutImage(Magick::Image pic, std::string title) const | ||
| 204 | { | ||
| 205 | // Want a 16:9 aspect | ||
| 206 | int idealwidth = pic.rows()*(16.0/9.0); | ||
| 207 | if (idealwidth > pic.columns()) | ||
| 208 | { | ||
| 209 | // If the image is narrower than the ideal width, use full width. | ||
| 210 | int newheight = pic.columns()*(9.0/16.0); | ||
| 211 | |||
| 212 | // Just take a slice out of the middle of the image. | ||
| 213 | int cropy = ((double)(pic.rows() - newheight))/2.0; | ||
| 214 | |||
| 215 | pic.crop(Magick::Geometry(pic.columns(), newheight, 0, cropy)); | ||
| 216 | } else { | ||
| 217 | // If the image is wider than the ideal width, use full height. | ||
| 218 | // Just take a slice out of the middle of the image. | ||
| 219 | int cropx = ((double)(pic.columns() - idealwidth))/2.0; | ||
| 220 | |||
| 221 | pic.crop(Magick::Geometry(idealwidth, pic.rows(), cropx, 0)); | ||
| 222 | } | ||
| 223 | |||
| 224 | pic.zoom(Magick::Geometry(400, 225)); | ||
| 225 | |||
| 226 | // Layout the text. | ||
| 227 | std::list<std::string> words = verbly::split<std::list<std::string>>(title, " "); | ||
| 228 | std::vector<std::string> lines; | ||
| 229 | std::list<std::string> cur; | ||
| 230 | Magick::TypeMetric metric; | ||
| 231 | pic.fontPointsize(20); | ||
| 232 | pic.font("@coolvetica.ttf"); | ||
| 233 | |||
| 234 | while (!words.empty()) | ||
| 235 | { | ||
| 236 | cur.push_back(words.front()); | ||
| 237 | |||
| 238 | std::string prefixText = verbly::implode(std::begin(cur), std::end(cur), " "); | ||
| 239 | pic.fontTypeMetrics(prefixText, &metric); | ||
| 240 | |||
| 241 | if (metric.textWidth() > 380) | ||
| 242 | { | ||
| 243 | if (cur.size() == 1) | ||
| 244 | { | ||
| 245 | words.pop_front(); | ||
| 246 | } else { | ||
| 247 | cur.pop_back(); | ||
| 248 | } | ||
| 249 | |||
| 250 | prefixText = verbly::implode(std::begin(cur), std::end(cur), " "); | ||
| 251 | lines.push_back(prefixText); | ||
| 252 | cur.clear(); | ||
| 253 | } else { | ||
| 254 | words.pop_front(); | ||
| 255 | } | ||
| 256 | } | ||
| 257 | |||
| 258 | if (!cur.empty()) | ||
| 259 | { | ||
| 260 | std::string prefixText = verbly::implode(std::begin(cur), std::end(cur), " "); | ||
| 261 | lines.push_back(prefixText); | ||
| 262 | } | ||
| 263 | |||
| 264 | int lineHeight = metric.textHeight()-2; | ||
| 265 | int blockHeight = lineHeight * lines.size() + 18; | ||
| 266 | std::cout << "line " << lineHeight << "; block " << blockHeight << std::endl; | ||
| 267 | |||
| 268 | std::list<Magick::Drawable> drawList; | ||
| 269 | drawList.push_back(Magick::DrawableFillColor("black")); | ||
| 270 | drawList.push_back(Magick::DrawableFillOpacity(0.5)); | ||
| 271 | drawList.push_back(Magick::DrawableStrokeColor("transparent")); | ||
| 272 | drawList.push_back(Magick::DrawableRectangle(0, 225-blockHeight-20, 400, 255)); // 0, 225-60, 400, 255 | ||
| 273 | pic.draw(drawList); | ||
| 274 | |||
| 275 | drawList.clear(); | ||
| 276 | drawList.push_back(Magick::DrawableFont("@coolvetica.ttf")); | ||
| 277 | drawList.push_back(Magick::DrawableFillColor("white")); | ||
| 278 | drawList.push_back(Magick::DrawablePointSize(14)); | ||
| 279 | drawList.push_back(Magick::DrawableText(10, 225-blockHeight+4, "How to")); // 10, 255-62-4 | ||
| 280 | pic.draw(drawList); | ||
| 281 | |||
| 282 | for (int i=0; i<lines.size(); i++) | ||
| 283 | { | ||
| 284 | drawList.clear(); | ||
| 285 | drawList.push_back(Magick::DrawableFont("@coolvetica.ttf")); | ||
| 286 | drawList.push_back(Magick::DrawableFillColor("white")); | ||
| 287 | drawList.push_back(Magick::DrawablePointSize(20)); | ||
| 288 | drawList.push_back(Magick::DrawableText(10, 255-blockHeight+(i*lineHeight)-4, lines[i])); // 10, 255-20-25 | ||
| 289 | pic.draw(drawList); | ||
| 290 | } | ||
| 291 | |||
| 292 | return pic; | ||
| 293 | } | ||
| 294 | |||
| 295 | void advice::sendTweet(Magick::Image pic, std::string title) const | ||
| 296 | { | ||
| 297 | Magick::Blob outputimg; | ||
| 298 | |||
| 299 | try | ||
| 300 | { | ||
| 301 | pic.magick("png"); | ||
| 302 | pic.write(&outputimg); | ||
| 303 | } catch (const Magick::WarningCoder& e) | ||
| 304 | { | ||
| 305 | // Ignore | ||
| 306 | } | ||
| 307 | |||
| 308 | std::cout << "Generated image!" << std::endl << "Tweeting..." << std::endl; | ||
| 309 | |||
| 310 | std::string tweetText; | ||
| 311 | size_t tweetLim = 140 - client_->getConfiguration().getCharactersReservedPerMedia(); | ||
| 312 | if (title.length() > tweetLim) | ||
| 313 | { | ||
| 314 | tweetText = title.substr(0, tweetLim - 1) + "…"; | ||
| 315 | } else { | ||
| 316 | tweetText = title; | ||
| 317 | } | ||
| 318 | |||
| 319 | long media_id = client_->uploadMedia("image/png", (const char*) outputimg.data(), outputimg.length()); | ||
| 320 | client_->updateStatus(tweetText, {media_id}); | ||
| 321 | } | ||
| 322 | |||
| 323 | void advice::run() const | ||
| 324 | { | ||
| 325 | for (;;) | ||
| 326 | { | ||
| 327 | try | ||
| 328 | { | ||
| 329 | // Pick a noun to use for the picture. | ||
| 330 | verbly::word pictured = generateImageNoun(); | ||
| 331 | |||
| 332 | // Find an image of the picked noun. | ||
| 333 | Magick::Image pic = getImageForNoun(pictured); | ||
| 334 | |||
| 335 | // Generate the image text. | ||
| 336 | std::string title = generator_->generate(); | ||
| 337 | |||
| 338 | // Layout the image. | ||
| 339 | Magick::Image output = layoutImage(std::move(pic), title); | ||
| 340 | |||
| 341 | // Tweet the image. | ||
| 342 | sendTweet(std::move(output), title); | ||
| 343 | |||
| 344 | std::cout << "Done!" << std::endl << "Waiting..." << std::endl << std::endl; | ||
| 345 | |||
| 346 | // Wait. | ||
| 347 | std::this_thread::sleep_for(std::chrono::hours(1)); | ||
| 348 | } catch (const could_not_get_images& ex) | ||
| 349 | { | ||
| 350 | std::cout << ex.what() << std::endl; | ||
| 351 | } catch (const Magick::ErrorImage& ex) | ||
| 352 | { | ||
| 353 | std::cout << "Image error: " << ex.what() << std::endl; | ||
| 354 | } catch (const twitter::twitter_error& ex) | ||
| 355 | { | ||
| 356 | std::cout << "Twitter error: " << ex.what() << std::endl; | ||
| 357 | } | ||
| 358 | } | ||
| 359 | } | ||
