/**
 * @import { test } from 'node:test'
 */
import assert from 'node:assert'
import test from 'node:test'
import { buildSeederSnapshotHintsJson } from '../lib/build-seeder-snapshot-hints-json.js'

test('empty env yields empty snapshotHintsJson', () => {
  assert.strictEqual(buildSeederSnapshotHintsJson({}), '')
})

test('BARE_OS_SEED_CORESTORE_SNAPSHOT_TAG becomes hints payload', () => {
  const j = buildSeederSnapshotHintsJson({
    BARE_OS_SEED_CORESTORE_SNAPSHOT_TAG: 'release-42'
  })
  const o = JSON.parse(j)
  assert.strictEqual(o.schema, 1)
  assert.strictEqual(o.corestoreSnapshotTag, 'release-42')
  assert.strictEqual(o.source, 'BARE_OS_SEED_CORESTORE_SNAPSHOT_TAG')
})

test('BARE_OS_SEED_SNAPSHOT_HINTS_JSON wins over tag', () => {
  const want = '{"schema":9,"slots":["a"]}'
  const j = buildSeederSnapshotHintsJson({
    BARE_OS_SEED_SNAPSHOT_HINTS_JSON: want,
    BARE_OS_SEED_CORESTORE_SNAPSHOT_TAG: 'ignored'
  })
  assert.strictEqual(j, want)
})