const lunrjs = require("lunr");

const handler = async (event) => {
  try {
    const search = event.queryStringParameters.term;
    if (!search) throw "Missing term query parameter";

    const data = require("./data.json");
    const indexJson = require("./index.json");
    const index = lunrjs.Index.load(indexJson);
    console.log("index made");

    let results =
      search[0] == "#" && search.length > 1
        ? index.search(`tags:${search.substring(1)}`)
        : index.search(search + "*");

    results.forEach((r) => {
      r.title = data[r.ref].title;
      r.content = truncate(data[r.ref].content, 400);
      r.date = data[r.ref].date;
      r.url = data[r.ref].url;
      r.tags = data[r.ref].tags.filter(
        (x) => x != "gardenEntry" && x != "note"
      ); //Note is automatically added by 11ty. GardenEntry is used internally to mark the home page

      delete r.ref;
    });

    return {
      statusCode: 200,
      body: JSON.stringify(results),
      // // more keys you can return:
      // headers: { "headerName": "headerValue", ... },
      // isBase64Encoded: true,
    };
  } catch (error) {
    return { statusCode: 500, body: error.toString() };
  }
};

function truncate(str, size) {
  //first, remove HTML
  str = str.replace(/<.*?>/g, "");
  if (str.length < size) return str;
  return str.substring(0, size - 3) + "...";
}

module.exports = { handler };