/**
 * NPM Protocol E2E Tests
 *
 * Tests the full NPM package lifecycle: publish -> fetch -> delete
 * Requires: npm CLI, running registry, Docker test infrastructure
 */

import { assertEquals, assertExists } from 'jsr:@std/assert';
import { describe, it, beforeAll, afterAll, beforeEach } from 'jsr:@std/testing/bdd';
import * as path from '@std/path';
import {
  setupTestDb,
  teardownTestDb,
  cleanupTestDb,
  createTestUser,
  createOrgWithOwner,
  createTestRepository,
  createTestApiToken,
  clients,
  skipIfMissing,
  runCommand,
  testConfig,
} from '../helpers/index.ts';

const FIXTURE_DIR = path.join(
  path.dirname(path.fromFileUrl(import.meta.url)),
  '../fixtures/npm/@stack-test/demo-package'
);

describe('NPM E2E: Full lifecycle', () => {
  let testUserId: string;
  let testOrgName: string;
  let apiToken: string;
  let registryUrl: string;
  let shouldSkip = false;

  beforeAll(async () => {
    // Check if npm is available
    shouldSkip = await skipIfMissing('npm');
    if (shouldSkip) return;

    await setupTestDb();
    registryUrl = testConfig.registry.url;
  });

  afterAll(async () => {
    if (!shouldSkip) {
      await teardownTestDb();
    }
  });

  beforeEach(async () => {
    if (shouldSkip) return;

    await cleanupTestDb();

    // Create test user and org
    const { user } = await createTestUser({ status: 'active' });
    testUserId = user.id;

    const { organization } = await createOrgWithOwner(testUserId, { name: 'npm-test' });
    testOrgName = organization.name;

    // Create repository for npm packages
    await createTestRepository({
      organizationId: organization.id,
      createdById: testUserId,
      name: 'packages',
      protocol: 'npm',
    });

    // Create API token with npm permissions
    const { rawToken } = await createTestApiToken({
      userId: testUserId,
      name: 'npm-publish-token',
      protocols: ['npm'],
      scopes: [{ protocol: 'npm', actions: ['read', 'write', 'delete'] }],
    });
    apiToken = rawToken;
  });

  it('should publish package', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // Configure npm to use our registry
    const npmrcPath = path.join(FIXTURE_DIR, '.npmrc');
    const npmrcContent = `
//${new URL(registryUrl).host}/-/npm/${testOrgName}/:_authToken=${apiToken}
@stack-test:registry=${registryUrl}/-/npm/${testOrgName}/
`;

    await Deno.writeTextFile(npmrcPath, npmrcContent);

    try {
      const result = await clients.npm.publish(
        FIXTURE_DIR,
        `${registryUrl}/-/npm/${testOrgName}/`,
        apiToken
      );

      assertEquals(result.success, true, `npm publish failed: ${result.stderr}`);
    } finally {
      // Cleanup .npmrc
      try {
        await Deno.remove(npmrcPath);
      } catch {
        // Ignore
      }
    }
  });

  it('should fetch package metadata', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // First publish
    const npmrcPath = path.join(FIXTURE_DIR, '.npmrc');
    const npmrcContent = `//${new URL(registryUrl).host}/-/npm/${testOrgName}/:_authToken=${apiToken}`;
    await Deno.writeTextFile(npmrcPath, npmrcContent);

    try {
      await clients.npm.publish(
        FIXTURE_DIR,
        `${registryUrl}/-/npm/${testOrgName}/`,
        apiToken
      );

      // Fetch metadata via npm view
      const viewResult = await runCommand(
        ['npm', 'view', '@stack-test/demo-package', '--registry', `${registryUrl}/-/npm/${testOrgName}/`],
        { env: { npm_config__authToken: apiToken } }
      );

      assertEquals(viewResult.success, true, `npm view failed: ${viewResult.stderr}`);
      assertEquals(viewResult.stdout.includes('@stack-test/demo-package'), true);
    } finally {
      try {
        await Deno.remove(npmrcPath);
      } catch {
        // Ignore
      }
    }
  });

  it('should install package', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // Create temp directory for installation
    const tempDir = await Deno.makeTempDir({ prefix: 'npm-e2e-' });

    try {
      // First publish
      const npmrcPath = path.join(FIXTURE_DIR, '.npmrc');
      const npmrcContent = `//${new URL(registryUrl).host}/-/npm/${testOrgName}/:_authToken=${apiToken}`;
      await Deno.writeTextFile(npmrcPath, npmrcContent);

      await clients.npm.publish(
        FIXTURE_DIR,
        `${registryUrl}/-/npm/${testOrgName}/`,
        apiToken
      );

      // Create package.json in temp dir
      await Deno.writeTextFile(
        path.join(tempDir, 'package.json'),
        JSON.stringify({ name: 'test-install', version: '1.0.0' })
      );

      // Create .npmrc in temp dir
      await Deno.writeTextFile(
        path.join(tempDir, '.npmrc'),
        `@stack-test:registry=${registryUrl}/-/npm/${testOrgName}/\n//${new URL(registryUrl).host}/-/npm/${testOrgName}/:_authToken=${apiToken}`
      );

      // Install
      const installResult = await clients.npm.install(
        '@stack-test/demo-package@1.0.0',
        `${registryUrl}/-/npm/${testOrgName}/`,
        tempDir
      );

      assertEquals(installResult.success, true, `npm install failed: ${installResult.stderr}`);

      // Verify installed
      const pkgPath = path.join(tempDir, 'node_modules/@stack-test/demo-package');
      const stat = await Deno.stat(pkgPath);
      assertEquals(stat.isDirectory, true);

      // Cleanup fixture .npmrc
      try {
        await Deno.remove(npmrcPath);
      } catch {
        // Ignore
      }
    } finally {
      await Deno.remove(tempDir, { recursive: true });
    }
  });

  it('should unpublish package', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // First publish
    const npmrcPath = path.join(FIXTURE_DIR, '.npmrc');
    const npmrcContent = `//${new URL(registryUrl).host}/-/npm/${testOrgName}/:_authToken=${apiToken}`;
    await Deno.writeTextFile(npmrcPath, npmrcContent);

    try {
      await clients.npm.publish(
        FIXTURE_DIR,
        `${registryUrl}/-/npm/${testOrgName}/`,
        apiToken
      );

      // Unpublish
      const unpublishResult = await clients.npm.unpublish(
        '@stack-test/demo-package@1.0.0',
        `${registryUrl}/-/npm/${testOrgName}/`,
        apiToken
      );

      assertEquals(
        unpublishResult.success,
        true,
        `npm unpublish failed: ${unpublishResult.stderr}`
      );

      // Verify package is gone
      const viewResult = await runCommand(
        ['npm', 'view', '@stack-test/demo-package', '--registry', `${registryUrl}/-/npm/${testOrgName}/`],
        { env: { npm_config__authToken: apiToken } }
      );

      // Should fail since package was unpublished
      assertEquals(viewResult.success, false);
    } finally {
      try {
        await Deno.remove(npmrcPath);
      } catch {
        // Ignore
      }
    }
  });
});

describe('NPM E2E: Edge cases', () => {
  let shouldSkip = false;

  beforeAll(async () => {
    shouldSkip = await skipIfMissing('npm');
  });

  it('should handle scoped packages correctly', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // Test scoped package name handling
    const scopedName = '@stack-test/demo-package';
    assertEquals(scopedName.startsWith('@'), true);
    assertEquals(scopedName.includes('/'), true);
  });

  it('should reject invalid package names', async function () {
    if (shouldSkip) {
      console.log('Skipping: npm not available');
      return;
    }

    // npm has strict naming rules
    const invalidNames = ['UPPERCASE', '..dots..', 'spaces here', '_underscore'];

    for (const name of invalidNames) {
      // Just verify these are considered invalid by npm standards
      assertEquals(!/^[a-z0-9][-a-z0-9._]*$/.test(name), true);
    }
  });
});