import PocketBase from "pocketbase";
import { readFileSync } from "fs";
import { resolve } from "path";

const PB_URL = "http://127.0.0.1:8090";
const ADMIN_EMAIL = "david.els1@outlook.com";
const ADMIN_PASSWORD = "1234567890";

const CUSTOMERS_FILE = "/Volumes/KIOXIA/Downloads/WFDASH - wfdash_customers (wfdash_customers) 2026-05-24_12-58.json";
const COMPANIES_FILE = "/Volumes/KIOXIA/Downloads/WFDASH - wfdash_company (wfdash_company) 2026-05-24_12-58.json";

function normalizeDate(val: string | null): string | null {
  if (!val) return null;
  return val.replace(" ", "T");
}

function parseJson(path: string): Record<string, unknown>[] {
  const raw = readFileSync(resolve(path), "utf-8");
  return JSON.parse(raw);
}

function chunks<T>(arr: T[], size: number): T[][] {
  const result: T[][] = [];
  for (let i = 0; i < arr.length; i += size) {
    result.push(arr.slice(i, i + size));
  }
  return result;
}

async function importCollection<T extends Record<string, unknown>>(
  pb: PocketBase,
  collectionName: string,
  records: T[],
  mapper: (r: T) => Record<string, unknown>,
) {
  console.log(`\nImporting ${records.length} records into "${collectionName}"...`);
  let success = 0;
  let errors = 0;

  for (let i = 0; i < records.length; i++) {
    try {
      await pb.collection(collectionName).create(mapper(records[i]), { $autoCancel: false });
      success++;
    } catch (err: unknown) {
      errors++;
      if (errors <= 3) {
        const msg = err instanceof Error ? err.message : String(err);
        console.error(`  Error on record ${i}: ${msg}`);
      }
    }
    if ((i + 1) % 20 === 0 || i === records.length - 1) {
      const pct = Math.round(((i + 1) / records.length) * 100);
      process.stdout.write(`\r  Progress: ${success + errors}/${records.length} (${pct}%) | OK: ${success} | Err: ${errors}`);
    }
  }
  console.log(`\n  Done: ${success} created, ${errors} failed`);
}

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

  // --- Import companies ---
  const companyRecords = parseJson(COMPANIES_FILE);
  await importCollection(pb, "companies", companyRecords, (r) => ({
    company: r.company ?? "",
    address: r.address ?? "",
    vendor: r.vendor ?? "",
  }));

  // --- Import customers ---
  const customerRecords = parseJson(CUSTOMERS_FILE);
  await importCollection(pb, "customers", customerRecords, (r) => ({
    customer: r.customer ?? "",
    email: r.email ?? "",
    alternative_email: r.alternative_email ?? null,
    buyer_email: r.buyer_email ?? null,
    number: r.number ?? "",
    company: r.company ?? "",
    dateadded: normalizeDate(r.dateadded as string | null),
    lastvisiteddate: normalizeDate(r.lastvisiteddate as string | null),
    rep: r.rep ?? null,
    coordinates: r.coordinates ?? null,
    description: r.description ?? null,
  }));

  console.log("\n\n✅ Import complete!");
}

main().catch((err) => {
  console.error("Import failed:", err);
  process.exit(1);
});