import "../../setup.ts";
import { assertEquals } from "@std/assert";
import { canonicalizeUrl } from "../../../lib/canonical-url.ts";
import { up as up0013 } from "../../../db/migrations/0013_dump_url_canonical.ts";
import { DatabaseSync } from "node:sqlite";

// Migration 0013 carries a frozen copy of the canonicalizer to backfill old
// rows. Until the rules change on purpose (with a new backfill migration), the
// two must agree, or rows from before and after the migration won't match.
Deno.test("migration 0013 backfills the same keys canonicalizeUrl computes", () => {
  const urls = [
    "http://www.example.com/a/?utm_source=x&b=2&a=1#top",
    "https://youtu.be/abc123?t=5",
    "https://www.youtube.com/playlist?list=PLx",
    "https://app.example.com/#/route",
  ];
  const db = new DatabaseSync(":memory:");
  db.exec(`CREATE TABLE dumps (id TEXT PRIMARY KEY, url TEXT);`);
  urls.forEach((url, i) =>
    db.prepare(`INSERT INTO dumps (id, url) VALUES (?, ?);`).run(String(i), url)
  );
  up0013(db);
  up0013(db); // idempotent
  const rows = db.prepare(`SELECT id, url_canonical FROM dumps ORDER BY id;`)
    .all() as { id: string; url_canonical: string }[];
  assertEquals(
    rows.map((r) => r.url_canonical),
    urls.map(canonicalizeUrl),
  );
  db.close();
});