import "../setup.ts";
import { assertEquals, assertThrows } from "@std/assert";
import { DatabaseSync } from "node:sqlite";
import { uniqueSlug, validateSlug } from "../../lib/slugify.ts";
import { APIException } from "../../lib/api-exception.ts";

Deno.test("uniqueSlug: numbers a clash within the owner's space, aliases included", () => {
  const db = new DatabaseSync(":memory:");
  db.exec(`
    CREATE TABLE dumps (id TEXT, user_id TEXT, slug TEXT);
    CREATE TABLE dump_slug_aliases (user_id TEXT, slug TEXT, dump_id TEXT);
    INSERT INTO dumps VALUES ('1', 'bob', 'mix'), ('2', 'bob', 'mix-2');
    INSERT INTO dump_slug_aliases VALUES ('bob', 'mix-3', '1');
  `);
  assertEquals(uniqueSlug(db, "dump", "bob", "mix"), "mix-4");
  assertEquals(uniqueSlug(db, "dump", "ann", "mix"), "mix");
  // The suffix still fits in 60 characters, cut at no hyphen.
  db.prepare(`INSERT INTO dumps VALUES ('3', 'bob', ?);`).run("a".repeat(60));
  assertEquals(
    uniqueSlug(db, "dump", "bob", "a".repeat(60)),
    "a".repeat(58) + "-2",
  );
  db.close();
});

Deno.test("validateSlug: lowercase words joined by hyphens, 60 at most", () => {
  validateSlug("never-gonna-2");
  for (const bad of ["Never", "-a", "a-", "a--b", "a b", "", "a".repeat(61)]) {
    assertThrows(() => validateSlug(bad), APIException, undefined, bad);
  }
});