chadtmiller.com/pds.js

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/**
 * A repository is addressed by name and identified by its record key. The
 * rows a listing puts in hand carry both, and every screen reads one of them.
 */

import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import {
  account,
  primeFromCache,
  repoKeyOf,
  repoList,
  repoRecord,
  spaceOf,
} from '../src/lib/git.js';

const DID = 'did:plc:owner';
const HOST = 'pds.example.com';

/** @param {string} name @param {string} rkey @param {string} [space] */
const row = (name, rkey, space) => ({
  uri: space
    ? `${space}/${DID}/dev.pdsjs.git.repo/${rkey}`
    : `at://${DID}/dev.pdsjs.git.repo/${rkey}`,
  cid: `bafy${rkey}`,
  value: {
    name,
    refs: [{ name: 'refs/heads/main', sha: 'a'.repeat(40) }],
    ...(space ? { space } : {}),
  },
});

/** @param {Array<ReturnType<typeof row>>} rows */
function prime(rows) {
  const held = new Map([
    [
      'git-ui:discovery',
      JSON.stringify({
        host: HOST,
        did: DID,
        pds: `https://${HOST}`,
        handle: 'owner.test',
      }),
    ],
    ['git-ui:repos', JSON.stringify({ host: HOST, rows })],
  ]);
  globalThis.localStorage = /** @type {any} */ ({
    getItem: (/** @type {string} */ key) => held.get(key) ?? null,
    setItem: () => {},
  });
  globalThis.location = /** @type {any} */ ({ hostname: HOST });
  return primeFromCache();
}

beforeEach(() => {
  account.did = '';
  account.pds = '';
  account.handle = '';
});

afterEach(() => {
  globalThis.localStorage = /** @type {any} */ (undefined);
  globalThis.location = /** @type {any} */ (undefined);
});

describe('the rows a listing puts in hand', () => {
  it('names a repository by its record, not by its key', () => {
    const listed = prime([row('demo-app', '3mup7vnsuqc3f')]);
    expect(listed?.map((repo) => repo.name)).toEqual(['demo-app']);
    expect(repoList().map((repo) => repo.name)).toEqual(['demo-app']);
  });

  it('finds a repository by the name a page addresses it with', () => {
    prime([row('demo-app', '3mup7vnsuqc3f')]);
    expect(repoRecord('demo-app')?.name).toBe('demo-app');
    expect(repoRecord('3mup7vnsuqc3f')).toBe(null);
  });

  it('gives the record key the pack reader and the config are at', () => {
    prime([row('demo-app', '3mup7vnsuqc3f')]);
    expect(repoKeyOf('demo-app')).toBe('3mup7vnsuqc3f');
  });

  it('keeps a private repository of the same name apart from a public one', () => {
    const space = `at://${DID}/space/dev.pdsjs.git.space/secret`;
    prime([row('demo-app', '3mpublickey'), row('secret', 'secret', space)]);
    expect(spaceOf('secret')).toBe(space);
    expect(repoKeyOf('secret', space)).toBe('secret');
    expect(repoKeyOf('demo-app')).toBe('3mpublickey');
  });

  it('falls back to the key for a record carrying no name', () => {
    const bare = row('demo-app', '3mbarekey');
    bare.value = /** @type {any} */ ({ refs: [] });
    prime([bare]);
    expect(repoKeyOf('3mbarekey')).toBe('3mbarekey');
  });
});