/**
 * Migration — add `search_text` (text) to `price_list`.
 *
 * PB can't substring-match a JSON field, so for the Catalogue tab's
 * "search everything" feature, we denormalize the searchable bits of
 * each row into a flat text field. The WFDASH Catalogue helper
 * (`getPriceLists`) then ORs against `search_text` and the other
 * string columns.
 *
 * What's in search_text (per row, joined with spaces):
 *   - sku
 *   - description
 *   - brand
 *   - supplier
 *   - category
 *   - subcategory
 *   - specifications.synonyms   (the buyer-friendly aliases)
 *
 * Idempotent: re-runs are safe.
 *
 * Run with:
 *   npm run pb:migrate:price-list-search-text
 */
import PocketBase from "pocketbase";

const PB_URL = process.env.NEXT_PUBLIC_POCKETBASE_URL || "http://127.0.0.1:8090";
const ADMIN_EMAIL = process.env.PB_ADMIN_EMAIL;
const ADMIN_PASSWORD = process.env.PB_ADMIN_PASSWORD;

if (!ADMIN_EMAIL || !ADMIN_PASSWORD) {
  throw new Error("PB_ADMIN_EMAIL and PB_ADMIN_PASSWORD are required.");
}

async function main() {
  const pb = new PocketBase(PB_URL);
  await pb.collection("_superusers").authWithPassword(ADMIN_EMAIL, ADMIN_PASSWORD);

  const cols = await pb.collections.getFullList();
  const priceList = cols.find((c) => c.name === "price_list");
  if (!priceList) {
    throw new Error("price_list collection not found.");
  }

  // Always re-check the index — running the migration on a
  // collection that already has `search_text` should still ensure
  // the index exists (handles the case where the field was added
  // before the index step was introduced).
  const INDEX_SQL = "CREATE INDEX `idx_pl_search_text` ON `price_list` (`search_text`)";
  const hasIndex = (priceList.indexes || []).some(
    (i) => typeof i === "string" && i.includes("idx_pl_search_text"),
  );

  if (priceList.fields.some((f) => f.name === "search_text")) {
    if (hasIndex) {
      console.log("price_list.search_text + index already present, skipping.");
      return;
    }
    await pb.collections.update(priceList.id, { indexes: [...(priceList.indexes || []), INDEX_SQL] });
    console.log("Added price_list index on search_text (field already existed).");
    console.log("search_text index migration complete.");
    return;
  }

  await pb.collections.update(priceList.id, {
    fields: [
      ...priceList.fields,
      { name: "search_text", type: "text", required: false, options: { max: 0 } },
    ],
    // Add a non-unique index so the search box doesn't full-scan
    // the table once we have thousands of rows.
    indexes: [
      ...(priceList.indexes || []),
      "CREATE INDEX `idx_pl_search_text` ON `price_list` (`search_text`)",
    ],
  });
  console.log("Added price_list.search_text (+ index)");
  console.log("search_text migration complete.");
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});