#include "scratchApi.h"

ReturnValue_t scratch::writeString(std::string name, std::string string) {
  std::ostringstream oss;
  oss << "xsc_scratch write " << name << " \"" << string << "\"";
  int result = std::system(oss.str().c_str());
  if (result != 0) {
    utility::handleSystemError(result, "scratch::writeString");
    return returnvalue::FAILED;
  }
  return returnvalue::OK;
}

ReturnValue_t scratch::readString(std::string key, std::string &string) {
  std::ifstream file;
  std::string filename;
  ReturnValue_t result = readToFile(key, file, filename);
  if (result != returnvalue::OK) {
    return result;
  }

  std::string line;
  if (not std::getline(file, line)) {
    std::remove(filename.c_str());
    return returnvalue::FAILED;
  }

  size_t pos = line.find("=");
  if (pos == std::string::npos) {
    sif::warning << "scratch::readNumber: Output file format invalid, "
                    "no \"=\" found"
                 << std::endl;
    // Could not find value
    std::remove(filename.c_str());
    return KEY_NOT_FOUND;
  }
  string = line.substr(pos + 1);
  return returnvalue::OK;
}

ReturnValue_t scratch::clearValue(std::string key) {
  std::ostringstream oss;
  oss << "xsc_scratch clear " << key;
  int result = std::system(oss.str().c_str());
  if (result != 0) {
    utility::handleSystemError(result, "scratch::clearValue");
    return returnvalue::FAILED;
  }
  return returnvalue::OK;
}