import assert from 'node:assert/strict';
import test from 'node:test';

import { loadScenarioCatalog } from './catalog.mjs';
import { CORE_SCENARIO_IDS, selectImpactScenarios } from './impact.mjs';

test('docs-only changes use the compact core gate', async () => {
  const catalog = await loadScenarioCatalog();
  const selection = selectImpactScenarios({
    catalog,
    changedPaths: ['AGENTS.md', 'docs/local-dev.md'],
  });
  assert.equal(selection.strategy, 'core');
  assert.deepEqual(selection.selected_ids, catalog
    .map((scenario) => scenario.id)
    .filter((id) => CORE_SCENARIO_IDS.includes(id)));
  assert.equal(selection.unmapped_paths.length, 0);
});

test('domain changes select the domain and dependency closure', async () => {
  const catalog = await loadScenarioCatalog();
  const selection = selectImpactScenarios({
    catalog,
    changedPaths: ['memory-v2-lifecycle.mjs'],
  });
  assert.equal(selection.strategy, 'impact');
  assert.deepEqual(selection.impact_groups, ['CHAT', 'MEM']);
  assert.equal(selection.selected_ids.includes('MEM-16'), true);
  assert.equal(selection.selected_ids.includes('CHAT-15'), true);
  assert.equal(selection.selected_ids.includes('BILL-07'), false);
});

test('critical paths expand mapped domains and unmapped paths block release', async () => {
  const catalog = await loadScenarioCatalog();
  const critical = selectImpactScenarios({
    catalog,
    changedPaths: ['server.mjs'],
  });
  assert.equal(critical.policy_version, 2);
  assert.equal(critical.strategy, 'impact');
  assert.ok(critical.selected_total < catalog.length);
  assert.deepEqual(
    critical.impact_groups,
    ['AGENT', 'AUTH', 'CFG', 'CHAT', 'DATA', 'FILE', 'MS', 'PAGE'],
  );
  assert.deepEqual(critical.full_gate_reasons, []);

  assert.throws(
    () => selectImpactScenarios({
      catalog,
      changedPaths: ['new-runtime-kernel.mjs'],
    }),
    /unmapped runtime paths: new-runtime-kernel\.mjs/,
  );
  assert.throws(
    () => selectImpactScenarios({
      catalog,
      changedPaths: [],
      blockingReasons: ['deployed_commit_not_ancestor:abc'],
    }),
    /Impact selection is blocked/,
  );
});

test('release policy changes use mapped REL and CFG domains without selecting the catalog', async () => {
  const catalog = await loadScenarioCatalog();
  const selection = selectImpactScenarios({
    catalog,
    changedPaths: [
      'release-gate/impact.mjs',
      'scripts/release-portal-canary-prod.sh',
      '.runtime/portal/server.mjs',
    ],
  });

  assert.equal(selection.strategy, 'impact');
  assert.deepEqual(selection.impact_groups, ['CFG', 'REL']);
  assert.ok(selection.selected_total < catalog.length);
  assert.equal(selection.changed_paths.includes('.runtime/portal/server.mjs'), true);
});