#include "snippets.hpp"
#include "config.hpp"
#include "filesystem.hpp"
#include "terminal.hpp"
#include <boost/property_tree/json_parser.hpp>

void Snippets::load() {
  auto snippets_file = Config::get().home_juci_path / "snippets.json";

  boost::system::error_code ec;
  if(!boost::filesystem::exists(snippets_file, ec))
    filesystem::write(snippets_file, R"({
  "^markdown$": [
    {
      "key": "<primary>1",
      "prefix": "code_block",
      "body": "```${1:language}\n${2:code}\n```\n",
      "description": "Insert code block"
    }
  ]
}
)");

  snippets.clear();
  try {
    boost::property_tree::ptree pt;
    boost::property_tree::json_parser::read_json(snippets_file.string(), pt);
    for(auto language_it = pt.begin(); language_it != pt.end(); ++language_it) {
      snippets.emplace_back(std::regex(language_it->first), std::vector<Snippet>());
      for(auto snippet_it = language_it->second.begin(); snippet_it != language_it->second.end(); ++snippet_it) {
        auto key_string = snippet_it->second.get<std::string>("key", "");
        guint key = 0;
        GdkModifierType modifier = static_cast<GdkModifierType>(0);
        if(!key_string.empty()) {
          gtk_accelerator_parse(key_string.c_str(), &key, &modifier);
          if(key == 0 && modifier == 0)
            Terminal::get().async_print("Error: could not parse key string: " + key_string + "\n", true);
        }
        snippets.back().second.emplace_back(Snippet{snippet_it->second.get<std::string>("prefix", ""), key, modifier, snippet_it->second.get<std::string>("body"), snippet_it->second.get<std::string>("description", "")});
      }
    }
  }
  catch(const std::exception &e) {
    Terminal::get().async_print(std::string("Error: ") + e.what() + "\n", true);
  }
}