const { secure } = require("./api");
let cached;
let pending;
function loadBreeds(force = false) {
  if (pending) return pending;
  if (cached && !force) return Promise.resolve(cached);
  pending = secure("/breeds")
    .then((rows) => {
      cached = rows;
      return rows;
    })
    .finally(() => {
      pending = null;
    });
  return pending;
}
function groupBreeds(rows, query = "") {
  const q = query.trim().toLowerCase().replace(/\s/g, "");
  const groups = new Map();
  for (const row of rows) {
    if (
      q &&
      ![
        row.name,
        row.aliases,
        row.english_name,
        row.pinyin,
        row.pinyin_initials,
      ].some((value) =>
        (value || "").toLowerCase().replace(/\s/g, "").includes(q),
      )
    )
      continue;
    const letter = row.initial || "#";
    if (!groups.has(letter)) groups.set(letter, []);
    groups.get(letter).push(row);
  }
  return [...groups]
    .sort(([a], [b]) => a.localeCompare(b))
    .map(([letter, items]) => ({
      letter,
      anchor: letter === "#" ? "letter-other" : "letter-" + letter,
      items,
    }));
}
module.exports = { loadBreeds, groupBreeds };