/*
 * Tests de non-régression du registre d'applications.
 * Le registre doit faire de app.json l'unique source de vérité des applications déployées.
 */
const assert = require('node:assert/strict');
const fs = require('node:fs');
const os = require('node:os');
const path = require('node:path');

const { discoverApps, refreshApps, refreshAppsIfStale } = require('../src/app-registry');

function writeManifest(basePath, directory, manifest) {
  const appPath = path.join(basePath, directory);
  fs.mkdirSync(appPath, { recursive: true });
  fs.writeFileSync(path.join(appPath, 'app.json'), JSON.stringify(manifest), 'utf8');
}

const sandbox = fs.mkdtempSync(path.join(os.tmpdir(), 'app-registry-'));

try {
  writeManifest(sandbox, 'contacts', {
    id: 'itinova-contacts',
    name: 'Itinova Contacts',
    category: 'ITINOVA',
    containerName: 'itinova-contacts',
    image: 'images/itinova-contacts.png',
    ai: {
      engines: [{ provider: 'Google Gemini', model: 'gemini-2.5-flash', role: 'Assistant conversationnel', billing: 'free', source: 'referential' }],
      activeConfigurationPath: '/api/ai/active-configuration',
    },
    urls: {
      recette: 'https://contacts-itinova.recette.santinova-soft.org',
      prod: 'https://contacts-itinova.santinova-soft.org',
    },
  });

  writeManifest(sandbox, 'dashboard', {
    id: 'manus-dashboard',
    name: 'Dashboard',
    category: 'INFRA',
    urls: {
      recette: 'https://dashboard-santinova.recette.santinova-soft.org',
      prod: 'https://dashboard-santinova.santinova-soft.org',
    },
  });

  writeManifest(sandbox, 'falc', {
    id: 'falc-generator',
    name: 'FALC Generator',
    category: 'ITINOVA',
    urls: { recette: 'https://falc-itinova.recette.santinova-soft.org' },
  });

  writeManifest(sandbox, 'invalide', {
    id: 'app-invalide',
    name: 'Application invalide',
    category: 'INCONNUE',
    urls: { recette: 'https://invalide.recette.santinova-soft.org' },
  });
  writeManifest(sandbox, 'ia-invalide', {
    id: 'app-ia-invalide',
    name: 'Application IA invalide',
    category: 'ITINOVA',
    ai: { engines: [{ provider: 'Google Gemini' }] },
    urls: { recette: 'https://ia-invalide.recette.santinova-soft.org' },
  });
  writeManifest(sandbox, 'tarif-ia-invalide', {
    id: 'app-tarif-ia-invalide',
    name: 'Tarif IA invalide',
    category: 'ITINOVA',
    ai: { engines: [{ provider: 'Google Gemini', model: 'gemini-2.5-flash', billing: 'inconnu' }] },
    urls: { recette: 'https://tarif-ia-invalide.recette.santinova-soft.org' },
  });

  const discovery = discoverApps({ appsBasePath: sandbox, environment: 'recette' });
  assert.equal(discovery.apps.length, 3, 'un manifeste invalide doit être exclu');
  assert.equal(discovery.errors.length, 3, 'une erreur explicite doit être retournée pour chaque manifeste invalide');
  assert.ok(discovery.errors.some((error) => error.error.includes('billing doit être free ou paid')));

  const app = discovery.apps.find((candidate) => candidate.id === 'itinova-contacts');
  assert.equal(app.directory, 'contacts', 'le dossier doit être déduit du chemin du manifeste');
  assert.equal(app.healthCheckUrl, app.urls.recette, 'la vérification doit cibler l’environnement courant');
  assert.equal(app.containerName, 'itinova-contacts');
  assert.deepEqual(app.ai, {
    engines: [{ provider: 'Google Gemini', model: 'gemini-2.5-flash', role: 'Assistant conversationnel', billing: 'free', source: 'referential' }],
    activeConfigurationPath: '/api/ai/active-configuration',
  }, 'la métadonnée IA descriptive, tarifaire, de provenance et de configuration active doit être conservée');

  const falc = discovery.apps.find((candidate) => candidate.id === 'falc-generator');
  assert.deepEqual(falc.ai, {
    engines: [
      { provider: 'Manus Forge', model: 'modèle par défaut non explicité', role: 'Transformation FALC', billing: 'paid', source: 'application' },
      { provider: 'Manus Forge', model: 'gemini-3.1-pro-preview', role: 'Récits de vie', billing: 'paid', source: 'application' },
    ],
  }, 'le catalogue IA doit compléter un manifeste historique sans moteur déclaré');

  const dashboardRecette = discovery.apps.find((candidate) => candidate.id === 'manus-dashboard');
  assert.equal(dashboardRecette.name, 'Dashboard Recette');
  const productionDiscovery = discoverApps({ appsBasePath: sandbox, environment: 'prod' });
  const dashboardProduction = productionDiscovery.apps.find((candidate) => candidate.id === 'manus-dashboard');
  assert.equal(dashboardProduction.name, 'Dashboard Production');

  const config = {
    appsBasePath: sandbox,
    environment: 'recette',
    apps: [{ id: 'itinova-contacts', name: 'ancienne valeur statique' }],
  };
  const refresh = refreshApps(config);
  assert.equal(refresh.apps.length, 3, 'les applications non déployées ne doivent pas rester en cache');
  assert.equal(
    config.apps.find((candidate) => candidate.id === 'itinova-contacts').name,
    'Itinova Contacts',
    'app.json doit prévaloir sur toute définition statique'
  );

  // Un déploiement met à jour app.json : le dashboard doit le détecter sans
  // redémarrage, mais sans relire les manifests à chaque requête.
  refreshApps(config, console, 1_000);
  writeManifest(sandbox, 'contacts', {
    id: 'itinova-contacts',
    name: 'Itinova Contacts mis à jour',
    category: 'ITINOVA',
    urls: {
      recette: 'https://contacts-itinova.recette.santinova-soft.org',
      prod: 'https://contacts-itinova.santinova-soft.org',
    },
  });
  const cachedRefresh = refreshAppsIfStale(config, { now: 1_999, maxAgeMs: 1_000 });
  assert.equal(cachedRefresh.refreshed, false, 'le cache reste utilisable avant son expiration');
  assert.equal(
    config.apps.find((candidate) => candidate.id === 'itinova-contacts').name,
    'Itinova Contacts',
    'le cache ne doit pas relire les manifests avant son expiration'
  );
  const expiredRefresh = refreshAppsIfStale(config, { now: 2_000, maxAgeMs: 1_000 });
  assert.equal(expiredRefresh.refreshed, true, 'le manifeste est relu lorsque le cache expire');
  assert.equal(
    config.apps.find((candidate) => candidate.id === 'itinova-contacts').name,
    'Itinova Contacts mis à jour',
    'la modification de manifeste doit apparaître sans redémarrage du dashboard'
  );

  console.log('OK app-registry');
} finally {
  fs.rmSync(sandbox, { recursive: true, force: true });
}