'use strict';

/**
 * Regression tests for #3347 — opt-in auto-update of the knowledge graph
 * after main HEAD advances.
 *
 * This file covers the config-key surface: the new `graphify.auto_update`
 * key must be a valid config key, default to false, persist via config-set,
 * and round-trip via config-get. The runtime hook behavior is covered in
 * tests/feat-3347-graphify-auto-update-hook.test.cjs.
 *
 * Default-off discipline (issue #3347 acceptance criteria):
 *   - `graphify.auto_update` defaults to `false` so existing users see no
 *     behavior change after upgrade.
 *   - Opt-in via /gsd:settings or `gsd-tools config-set graphify.auto_update true`.
 */

const { describe, test } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');
const { createTempProject, cleanup, runGsdTools } = require('./helpers.cjs');

const {
  VALID_CONFIG_KEYS,
  isValidConfigKey,
} = require('../get-shit-done/bin/lib/config-schema.cjs');

const {
  CONFIG_DEFAULTS: CANONICAL_CONFIG_DEFAULTS,
} = require('../get-shit-done/bin/lib/configuration.generated.cjs');

const fsx = require('node:fs');
const pathx = require('node:path');
const cpx = require('node:child_process');
const osx = require('node:os');
const { graphifyStatus } = require('../get-shit-done/bin/lib/graphify.cjs');

function makeStatusProject(autoUpdate) {
  const tmpDir = fsx.mkdtempSync(pathx.join(osx.tmpdir(), 'gsd-3347-status-'));
  cpx.execFileSync('git', ['init', '-q', '-b', 'main'], { cwd: tmpDir });
  cpx.execFileSync('git', ['config', 'user.email', 'test@example.com'], { cwd: tmpDir });
  cpx.execFileSync('git', ['config', 'user.name', 'Test'], { cwd: tmpDir });
  fsx.writeFileSync(pathx.join(tmpDir, 'README.md'), '# t\n');
  cpx.execFileSync('git', ['add', '.'], { cwd: tmpDir });
  cpx.execFileSync('git', ['commit', '-qm', 'init'], { cwd: tmpDir });
  fsx.mkdirSync(pathx.join(tmpDir, '.planning/graphs'), { recursive: true });
  fsx.writeFileSync(
    pathx.join(tmpDir, '.planning/config.json'),
    JSON.stringify({ graphify: { enabled: true } }),
  );
  // Write a fresh (current-mtime) graph so age-based stale is false; only the
  // auto-update status field can set stale: true.
  fsx.writeFileSync(
    pathx.join(tmpDir, '.planning/graphs/graph.json'),
    JSON.stringify({ nodes: [], edges: [] }),
  );
  if (autoUpdate !== null) {
    fsx.writeFileSync(
      pathx.join(tmpDir, '.planning/graphs/.last-build-status.json'),
      JSON.stringify(autoUpdate),
    );
  }
  return tmpDir;
}

describe('#3347 — graphify.auto_update is a registered config key', () => {
  test('VALID_CONFIG_KEYS contains graphify.auto_update', () => {
    assert.ok(
      VALID_CONFIG_KEYS.has('graphify.auto_update'),
      'graphify.auto_update must be in VALID_CONFIG_KEYS so config-set accepts it',
    );
  });

  test('isValidConfigKey accepts graphify.auto_update', () => {
    assert.ok(
      isValidConfigKey('graphify.auto_update'),
      'isValidConfigKey must return true for graphify.auto_update',
    );
  });

  test('isValidConfigKey still accepts the pre-existing graphify.enabled key', () => {
    assert.ok(
      isValidConfigKey('graphify.enabled'),
      'regression guard: graphify.enabled must remain a valid key',
    );
  });
});

describe('#3347 — graphify.auto_update defaults to false', () => {
  test('CANONICAL_CONFIG_DEFAULTS.graphify.auto_update is false', () => {
    assert.ok(
      CANONICAL_CONFIG_DEFAULTS.graphify !== undefined,
      'CANONICAL_CONFIG_DEFAULTS must expose a graphify section',
    );
    assert.strictEqual(
      CANONICAL_CONFIG_DEFAULTS.graphify.auto_update,
      false,
      'graphify.auto_update default must be false (opt-in per issue #3347 AC)',
    );
  });
});

describe('#3347 — config-set graphify.auto_update round-trips', () => {
  test('config-set graphify.auto_update true succeeds', (t) => {
    const tmpDir = createTempProject();
    t.after(() => cleanup(tmpDir));

    const result = runGsdTools(
      ['config-set', 'graphify.auto_update', 'true'],
      tmpDir,
    );
    assert.ok(
      result.success,
      [
        'config-set graphify.auto_update true should succeed,',
        'got:',
        'stdout: ' + result.output,
        'stderr: ' + result.error,
      ].join('\n'),
    );
  });

  test('config-set graphify.auto_update true writes to config.json', (t) => {
    const tmpDir = createTempProject();
    t.after(() => cleanup(tmpDir));

    runGsdTools(['config-set', 'graphify.auto_update', 'true'], tmpDir);

    const configPath = path.join(tmpDir, '.planning', 'config.json');
    assert.ok(
      fs.existsSync(configPath),
      '.planning/config.json must exist after config-set',
    );

    const config = JSON.parse(fs.readFileSync(configPath, 'utf8'));
    assert.strictEqual(
      config.graphify?.auto_update,
      true,
      [
        'Expected graphify.auto_update: true in config.json,',
        'got: ' + JSON.stringify(config.graphify),
      ].join('\n'),
    );
  });

  test('config-set graphify.auto_update false persists too', (t) => {
    const tmpDir = createTempProject();
    t.after(() => cleanup(tmpDir));

    runGsdTools(['config-set', 'graphify.auto_update', 'true'], tmpDir);
    runGsdTools(['config-set', 'graphify.auto_update', 'false'], tmpDir);

    const configPath = path.join(tmpDir, '.planning', 'config.json');
    const config = JSON.parse(fs.readFileSync(configPath, 'utf8'));
    assert.strictEqual(
      config.graphify?.auto_update,
      false,
      'config-set must round-trip true → false',
    );
  });

  test('graphifyStatus folds auto-update status=failed into stale=true', (t) => {
    const tmpDir = makeStatusProject({
      ts: '2026-05-15T12:00:00Z',
      status: 'failed',
      exit_code: 1,
      duration_ms: 1234,
      head_at_build: 'abcdef0',
      graphify_version: null,
    });
    t.after(() => fsx.rmSync(tmpDir, { recursive: true, force: true }));
    const s = graphifyStatus(tmpDir);
    assert.strictEqual(s.stale, true, 'auto-build failure must set stale=true');
    assert.ok(s.last_build_auto_update, 'last_build_auto_update must be exposed');
    assert.strictEqual(s.last_build_auto_update.status, 'failed');
    assert.strictEqual(s.last_build_auto_update.exit_code, 1);
  });

  test('graphifyStatus folds auto-update status=running into stale=true', (t) => {
    const tmpDir = makeStatusProject({
      ts: '2026-05-15T12:00:00Z',
      status: 'running',
      exit_code: null,
      duration_ms: null,
      head_at_build: 'abcdef0',
      graphify_version: null,
    });
    t.after(() => fsx.rmSync(tmpDir, { recursive: true, force: true }));
    const s = graphifyStatus(tmpDir);
    assert.strictEqual(s.stale, true, 'auto-build in-flight must set stale=true');
    assert.strictEqual(s.last_build_auto_update.status, 'running');
  });

  test('graphifyStatus leaves stale alone when auto-update status=ok and graph is fresh', (t) => {
    const tmpDir = makeStatusProject({
      ts: '2026-05-15T12:00:00Z',
      status: 'ok',
      exit_code: 0,
      duration_ms: 1234,
      head_at_build: 'abcdef0',
      graphify_version: null,
    });
    t.after(() => fsx.rmSync(tmpDir, { recursive: true, force: true }));
    const s = graphifyStatus(tmpDir);
    assert.strictEqual(s.stale, false, 'fresh graph + ok auto-build => not stale');
    assert.strictEqual(s.last_build_auto_update.status, 'ok');
  });

  test('graphifyStatus exposes last_build_auto_update: null when status file absent', (t) => {
    const tmpDir = makeStatusProject(null);
    t.after(() => fsx.rmSync(tmpDir, { recursive: true, force: true }));
    const s = graphifyStatus(tmpDir);
    assert.strictEqual(s.last_build_auto_update, null);
    assert.strictEqual(s.stale, false, 'no status file => stale follows mtime only');
  });

  test('config-set graphify.auto_update does not perturb sibling graphify.enabled', (t) => {
    const tmpDir = createTempProject();
    t.after(() => cleanup(tmpDir));

    runGsdTools(['config-set', 'graphify.enabled', 'true'], tmpDir);
    runGsdTools(['config-set', 'graphify.auto_update', 'true'], tmpDir);

    const configPath = path.join(tmpDir, '.planning', 'config.json');
    const config = JSON.parse(fs.readFileSync(configPath, 'utf8'));
    assert.strictEqual(
      config.graphify?.enabled,
      true,
      'graphify.enabled must be preserved when setting graphify.auto_update',
    );
    assert.strictEqual(
      config.graphify?.auto_update,
      true,
      'graphify.auto_update must coexist with graphify.enabled',
    );
  });
});