From a3056929ea8381884655a46f80b4c0e1fdb66341 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sun, 7 Oct 2018 15:09:37 -0400
Subject: Working prototype

---
 wizard.cpp | 561 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 561 insertions(+)
 create mode 100644 wizard.cpp

(limited to 'wizard.cpp')

diff --git a/wizard.cpp b/wizard.cpp
new file mode 100644
index 0000000..ef4941f
--- /dev/null
+++ b/wizard.cpp
@@ -0,0 +1,561 @@
+
+
+#include <json.hpp>
+#include <fstream>
+#include <sstream>
+#include <list>
+#include <iostream>
+#include <vector>
+#include <tuple>
+#include <random>
+#include <set>
+#include <hkutil/string.h>
+#include <tesseract/baseapi.h>
+#include <leptonica/allheaders.h>
+#include <curl_easy.h>
+#include <Magick++.h>
+#include "prefix_search.h"
+
+
+
+
+
+
+std::string stripSpaces(std::string in)
+{
+  in.erase(
+    std::remove_if(
+      std::begin(in),
+      std::end(in),
+      ::isspace),
+    std::end(in));
+
+  return in;
+}
+
+
+
+
+
+using ps_type = prefix_search<std::tuple<size_t, size_t>>;
+
+enum class card_frame {
+  m2015,
+  modern
+};
+
+struct card {
+  size_t id;
+  std::string name;
+  std::string imageUri;
+  card_frame frame;
+
+  card(
+    size_t id,
+    std::string name,
+    std::string imageUri,
+    card_frame frame) :
+      id(id),
+      name(std::move(name)),
+      imageUri(std::move(imageUri)),
+      frame(frame)
+  {
+  }
+};
+
+struct usage {
+  size_t cardId;
+  size_t strIndex;
+  size_t strLen;
+
+  usage(
+    size_t ci,
+    size_t si,
+    size_t sl) :
+      cardId(ci),
+      strIndex(si),
+      strLen(sl)
+  {
+  }
+};
+
+struct solution {
+  const ps_type& prefix;
+  std::vector<size_t> lengths;
+  size_t score;
+};
+
+class designer {
+public:
+
+  designer(
+    std::string text,
+    const ps_type& titles) :
+      text_(std::move(text)),
+      titles_(titles),
+      solutions_(text_.length() + 1)
+  {
+  }
+
+  std::list<usage> generate(std::mt19937& rng) const;
+
+
+private:
+
+  const solution& get(size_t i) const;
+
+  solution calculate(size_t i) const;
+
+  const std::string text_;
+  const ps_type& titles_;
+
+  mutable std::vector<std::unique_ptr<solution>> solutions_;
+};
+
+
+
+
+
+
+
+
+
+std::list<usage> designer::generate(std::mt19937& rng) const
+{
+  std::list<usage> result;
+  size_t cur = 0;
+
+  while (cur < text_.length())
+  {
+    const solution& curSol = get(cur);
+    const std::vector<size_t>& posLens = curSol.lengths;
+
+    std::uniform_int_distribution<size_t> lenDist(0, posLens.size() - 1);
+    size_t len = posLens.at(lenDist(rng));
+
+    const ps_type& prefix = curSol.prefix;
+    std::uniform_int_distribution<size_t> cardDist(0, prefix.getCount() - 1);
+    size_t cardIndex = cardDist(rng);
+    std::tuple<size_t, size_t> pd = prefix.at(cardIndex);
+
+    result.emplace_back(std::get<0>(pd), std::get<1>(pd), len);
+
+    cur += len;
+  }
+
+  return result;
+}
+
+
+
+
+solution designer::calculate(size_t i) const
+{
+  if (i == text_.length())
+  {
+    return {
+      titles_,
+      {},
+      0
+    };
+  }
+
+  const ps_type& prefix = titles_.find(text_, i);
+
+  bool foundScore = false;
+  size_t bestScore;
+  std::vector<size_t> bestLens;
+
+  for (int j = 1;
+       (j <= prefix.getDepth()) && (i + j <= text_.length());
+       j++)
+  {
+    const solution& subSol = get(i + j);
+
+    if (subSol.score > 0 || (i + j == text_.length()))
+    {
+      size_t tempScore = subSol.score + 1;
+
+      if (!foundScore || tempScore < bestScore)
+      {
+        foundScore = true;
+        bestScore = tempScore;
+
+        bestLens.clear();
+        bestLens.push_back(j);
+      } else if (tempScore == bestScore)
+      {
+        bestLens.push_back(j);
+      }
+    }
+  }
+
+  if (!foundScore)
+  {
+    return {
+      titles_,
+      {},
+      0
+    };
+  } else {
+    return {
+      prefix,
+      std::move(bestLens),
+      bestScore
+    };
+  }
+}
+
+const solution& designer::get(size_t i) const
+{
+  if (!solutions_.at(i))
+  {
+    solutions_[i] = std::make_unique<solution>(calculate(i));
+  }
+
+  return *solutions_.at(i);
+}
+
+
+
+
+Magick::Image downloadImage(const std::string& url)
+{
+  std::ostringstream imgbuf;
+  curl::curl_ios<std::ostringstream> imgios(imgbuf);
+  curl::curl_easy imghandle(imgios);
+
+  imghandle.add<CURLOPT_URL>(url.c_str());
+  imghandle.add<CURLOPT_CONNECTTIMEOUT>(30);
+  imghandle.add<CURLOPT_TIMEOUT>(300);
+
+  imghandle.perform();
+
+  if (imghandle.get_info<CURLINFO_RESPONSE_CODE>().get() != 200)
+  {
+    throw std::runtime_error("Could not download image");
+  }
+
+  std::string content_type = imghandle.get_info<CURLINFO_CONTENT_TYPE>().get();
+  if (content_type.substr(0, 6) != "image/")
+  {
+    throw std::runtime_error("Could not download image");
+  }
+
+  std::string imgstr = imgbuf.str();
+  Magick::Blob img(imgstr.c_str(), imgstr.length());
+
+  Magick::Image pic;
+
+  try
+  {
+    pic.read(img);
+  } catch (const Magick::ErrorOption& e)
+  {
+    // Occurs when the the data downloaded from the server is malformed
+    std::cout << "Magick: " << e.what() << std::endl;
+
+    throw std::runtime_error("Could not download image");
+  }
+
+  return pic;
+}
+
+
+
+
+
+
+
+int main(int argc, char** argv)
+{
+  Magick::InitializeMagick(nullptr);
+
+  std::random_device randomDevice;
+  std::mt19937 rng(randomDevice());
+
+  std::cout << "Compiling prefix search..." << std::endl;
+
+  std::vector<card> cards;
+  ps_type titles;
+
+  std::set<char> chars;
+
+  {
+    std::ifstream in(
+      "/Users/hatkirby/Downloads/scryfall-default-cards.json",
+      std::ios::in | std::ios::binary);
+    std::ostringstream contents;
+    contents << in.rdbuf();
+
+
+    nlohmann::json cardsJson = nlohmann::json::parse(contents.str());
+
+
+
+    for (const auto& cardJson : cardsJson)
+    {
+      if (
+          // The object needs to be a card
+          cardJson["object"] == "card" &&
+          // It needs to have a downloadable image
+          cardJson.count("image_uris") &&
+          // Make sure we can support the card layout
+          (
+            cardJson["layout"] == "normal" ||
+            cardJson["layout"] == "leveler" ||
+            cardJson["layout"] == "saga"
+          ) &&
+          // Digital cards look slightly different so ignore them
+          !cardJson["digital"] &&
+          // Only use english printings
+          cardJson["lang"] == "en" &&
+          // Currently not supporting silver bordered cards
+          cardJson["border_color"] != "silver" &&
+          // It is hard to read the name of a planeswalker
+          cardJson["type_line"].get<std::string>()
+            .find("Planeswalker") == std::string::npos &&
+          // This cuts out checklists and special tokens
+          cardJson["type_line"] != "Card" &&
+          // Amonkhet invocations are impossible
+          cardJson["set"] != "mp2")
+      {
+        card_frame frame;
+
+        if (cardJson["frame"] == "2015")
+        {
+          frame = card_frame::m2015;
+        } else if (cardJson["frame"] == "2003")
+        {
+          frame = card_frame::modern;
+        } else {
+          continue;
+        }
+
+        size_t cardId = cards.size();
+        cards.emplace_back(
+          cardId,
+          cardJson["name"],
+          cardJson["image_uris"]["png"],
+          frame);
+
+        std::string canon = hatkirby::lowercase(cardJson["name"]);
+
+        for (int i = 0; i < canon.length(); i++)
+        {
+          titles.add(canon, {cardId, i}, i);
+
+          chars.insert(canon.at(i));
+        }
+      }
+    }
+  }
+
+  std::cout << "Characters: ";
+  for (char ch : chars)
+  {
+    std::cout << ch;
+  }
+  std::cout << std::endl;
+
+  std::cout << "Calculating card list..." << std::endl;
+
+  std::string text = "is it pretentious that i'm sending someone over 100 common and uncommon magic cards in an iphone six box";
+  std::string canonText = hatkirby::lowercase(text);
+  designer des(canonText, titles);
+  std::list<usage> res = des.generate(rng);
+
+  Magick::Image endImage;
+  bool firstSlice = false;
+
+  for (const usage& u : res)
+  {
+    const card& theCard = cards.at(u.cardId);
+    const std::string& cardName = theCard.name;
+
+    std::cout << cardName.substr(0, u.strIndex)
+      << "[" << cardName.substr(u.strIndex, u.strLen)
+      << "]" << cardName.substr(u.strIndex + u.strLen)
+      << std::endl;
+
+    std::cout << "Downloading image..." << std::endl;
+
+    Magick::Image cardImg = downloadImage(theCard.imageUri);
+
+    std::cout << "Reading text..." << std::endl;
+
+    Magick::Image titleImg = cardImg;
+    titleImg.magick("TIFF");
+
+    //titleImg.threshold(MaxRGB / 2);
+    titleImg.write("pre.tif");
+
+
+    Magick::Geometry margin;
+
+    if (theCard.frame == card_frame::m2015)
+    {
+      margin = Magick::Geometry { 595, 46, 57, 54 };
+    } else if (theCard.frame == card_frame::modern)
+    {
+      margin = Magick::Geometry { 581, 50, 63, 57 };
+    }
+
+    titleImg.crop(margin);
+    titleImg.zoom({ margin.width() * 5, margin.height() * 5 });
+
+    //titleImg.quantizeColorSpace(Magick::GRAYColorspace);
+    //titleImg.quantizeColors(2);
+    //titleImg.quantize();
+    titleImg.backgroundColor("white");
+    titleImg.matte(false);
+    titleImg.resolutionUnits(Magick::PixelsPerInchResolution);
+    titleImg.density({ 300, 300 });
+    titleImg.type(Magick::GrayscaleType);
+
+    titleImg.write("title.tif");
+
+    Magick::Blob titleBlob;
+    titleImg.write(&titleBlob);
+
+    Pix* titlePix = pixReadMemTiff(
+      reinterpret_cast<const unsigned char*>(titleBlob.data()),
+      titleBlob.length(),
+      0);
+
+    tesseract::TessBaseAPI* api = new tesseract::TessBaseAPI();
+
+    if (api->Init(nullptr, "eng"))
+    {
+      throw std::runtime_error("Could not initialize tesseract");
+    }
+
+    api->SetImage(titlePix);
+    api->Recognize(nullptr);
+
+    tesseract::ResultIterator* ri = api->GetIterator();
+    tesseract::PageIteratorLevel level = tesseract::RIL_TEXTLINE;
+    bool foundName = false;
+
+    if (ri)
+    {
+      do
+      {
+        const char* line = ri->GetUTF8Text(level);
+
+        if (line)
+        {
+          std::string lineStr(line);
+
+          //if (stripSpaces(hatkirby::lowercase(lineStr)).find(stripSpaces(hatkirby::lowercase((cardName)))) == 0)
+          {
+            foundName = true;
+
+            break;
+          }/* else {
+            std::cout << "WRONG: " << lineStr << std::endl;
+          }*/
+        }
+      } while (ri->Next(level));
+    }
+
+    if (foundName)
+    {
+      level = tesseract::RIL_SYMBOL;
+
+      std::vector<std::tuple<unsigned int, unsigned int>> characters;
+      size_t cur = 0;
+
+      do
+      {
+        int x1, y1, x2, y2;
+        ri->BoundingBox(level, &x1, &y1, &x2, &y2);
+
+        x1 /= 5;
+        x2 /= 5;
+
+        if (cardName.at(cur) == ' ')
+        {
+          if (cur == 0)
+          {
+            characters.emplace_back(0, x1);
+          } else {
+            const auto& prev = characters.back();
+            characters.emplace_back(std::get<1>(characters.back()), x1);
+          }
+
+          cur++;
+        }
+
+        characters.emplace_back(x1, x2);
+
+        cur++;
+      } while (ri->Next(level) && (cur < cardName.length()));
+
+      if (cur != cardName.length())
+      {
+        throw std::runtime_error("Error detecting character bounds");
+      }
+
+      cardImg.crop({
+        std::get<1>(characters[u.strIndex + u.strLen - 1])
+          - std::get<0>(characters[u.strIndex]),
+        cardImg.rows(),
+        margin.xOff() + std::get<0>(characters[u.strIndex]),
+        0
+      });
+
+      cardImg.magick("PNG");
+      cardImg.write("slice.png");
+    } else {
+      std::cout << "Didn't find name" << std::endl;
+    }
+
+
+
+
+
+
+
+
+
+
+    api->End();
+    pixDestroy(&titlePix);
+
+    if (!firstSlice)
+    {
+      firstSlice = true;
+      endImage = cardImg;
+    } else {
+
+      int xoff = endImage.columns();
+
+      endImage.backgroundColor("black");
+
+      endImage.extent(
+        {endImage.columns() + cardImg.columns(), cardImg.rows()},
+        Magick::WestGravity);
+
+      endImage.composite(
+        cardImg,
+        xoff,
+        (theCard.frame == card_frame::m2015) ? 6 : 0);
+    }
+
+
+    //break;
+  }
+
+
+  endImage.magick("PNG");
+  endImage.write("output.png");
+
+
+
+
+
+
+}
+
+
-- 
cgit 1.4.1