/**
 * CLI tests.
 * Tests the Pulse CLI commands.
 */

import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { execSync } from 'child_process';
import { existsSync, unlinkSync } from 'fs';
import { join } from 'path';

const TEST_DB_PATH = join(process.cwd(), 'test-cli.db');
const CLI_CMD = 'npx tsx cli.ts';

function runCli(args: string): string {
  const env = {
    ...process.env,
    PULSE_DATABASE_TYPE: 'sqlite',
    PULSE_SQLITE_PATH: TEST_DB_PATH,
  };

  try {
    return execSync(`${CLI_CMD} ${args}`, {
      encoding: 'utf-8',
      env,
      stdio: 'pipe',
    });
  } catch (error) {
    if (error instanceof Error && 'stdout' in error && error.stdout) {
      return error.stdout as string;
    }
    throw error;
  }
}

describe('CLI', () => {
  beforeEach(() => {
    // Clean up test database before each test
    if (existsSync(TEST_DB_PATH)) {
      unlinkSync(TEST_DB_PATH);
    }
  });

  afterEach(() => {
    // Clean up test database after each test
    if (existsSync(TEST_DB_PATH)) {
      unlinkSync(TEST_DB_PATH);
    }
  });

  describe('help', () => {
    it('should display help', () => {
      const output = runCli('--help');
      expect(output).toContain('Usage: pulse');
      expect(output).toContain('Commands:');
      expect(output).toContain('start');
      expect(output).toContain('add');
      expect(output).toContain('list');
    });

    it('should display version', () => {
      const output = runCli('--version');
      expect(output.trim()).toBe('0.1.0');
    });
  });

  describe('list', () => {
    it('should show empty list when no feeds', () => {
      const output = runCli('list');
      expect(output).toContain('No feed sources configured');
    });
  });

  describe('add', () => {
    it('should add a feed source', () => {
      const output = runCli('add "https://example.com/feed.xml" --name "Test Feed" --format rss');
      expect(output).toContain('Added feed:');
      expect(output).toContain('https://example.com/feed.xml');
      expect(output).toContain('rss');
    });

    it('should reject invalid format', () => {
      expect(() => {
        runCli('add "https://example.com/feed.xml" --format invalid');
      }).toThrow();
    });
  });

  describe('remove', () => {
    it('should remove a feed source', () => {
      // First add a feed
      runCli('add "https://example.com/feed.xml" --name "Test Feed" --format rss');

      // Then remove it
      const output = runCli('remove 9bb0a00b');
      expect(output).toContain('Removed feed:');
    });

    it('should error when removing non-existent feed', () => {
      expect(() => {
        runCli('remove non-existent-id');
      }).toThrow();
    });
  });

  describe('status', () => {
    it('should show status for no feeds', () => {
      const output = runCli('status');
      expect(output).toContain('No feed sources configured');
    });

    it('should show status for healthy feed', () => {
      // Add a feed
      runCli('add "https://example.com/feed.xml" --name "Test Feed" --format rss');

      const output = runCli('status');
      expect(output).toContain('Healthy');
      expect(output).toContain('Test Feed');
    });
  });

  describe('items', () => {
    it('should show no items when database is empty', () => {
      const output = runCli('items');
      expect(output).toContain('No items found');
    });
  });
});