import { Command } from 'commander';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { EmailValidationError } from '../../../src/globalConfig/accounts';
import logger from '../../../src/logger';
import { redteamRunCommand } from '../../../src/redteam/commands/run';
import { doRedteamRun } from '../../../src/redteam/shared';
import { ProbeLimitExceededError } from '../../../src/redteam/types';
import { getConfigFromCloud } from '../../../src/util/cloud';

vi.mock('../../../src/cliState', () => ({
  default: {
    remote: false,
  },
}));

vi.mock('../../../src/logger', () => ({
  default: {
    debug: vi.fn(),
    info: vi.fn(),
    warn: vi.fn(),
    error: vi.fn(),
  },
  getLogLevel: vi.fn().mockReturnValue('info'),
}));

vi.mock('../../../src/telemetry', () => ({
  default: {
    record: vi.fn(),
  },
}));

vi.mock('../../../src/util', async (importOriginal) => {
  return {
    ...(await importOriginal()),
    setupEnv: vi.fn(),
  };
});

vi.mock('../../../src/redteam/shared', () => ({
  doRedteamRun: vi.fn().mockResolvedValue({}),
}));

vi.mock('../../../src/util/cloud', async (importOriginal) => {
  return {
    ...(await importOriginal()),
    getConfigFromCloud: vi.fn(),
  };
});

describe('redteamRunCommand', () => {
  let program: Command;
  let originalExitCode: number | undefined;

  beforeEach(() => {
    vi.resetAllMocks();
    program = new Command();
    redteamRunCommand(program);
    // Store original exitCode to restore later
    originalExitCode = process.exitCode as number | undefined;
    process.exitCode = 0;
  });

  afterEach(() => {
    // Restore original exitCode
    process.exitCode = originalExitCode;
  });

  it('should use target option to set cloud target when UUID is provided', async () => {
    // Mock the getConfigFromCloud function
    const mockConfig = {
      prompts: ['Test prompt'],
      vars: {},
      providers: [{ id: 'test-provider' }],
      targets: [
        {
          id: 'test-provider',
        },
      ],
    };
    vi.mocked(getConfigFromCloud).mockResolvedValue(mockConfig);

    // UUID format for config and target
    const configUUID = '12345678-1234-1234-1234-123456789012';
    const targetUUID = '87654321-4321-4321-4321-210987654321';

    // Find the run command
    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    // Execute the command with the target option
    await runCommand!.parseAsync(['node', 'test', '--config', configUUID, '--target', targetUUID]);

    // Verify doRedteamRun was called with the right parameters
    expect(doRedteamRun).toHaveBeenCalledWith(
      expect.objectContaining({
        liveRedteamConfig: mockConfig,
        config: undefined,
        loadedFromCloud: true,
        target: targetUUID,
        eventSource: 'cli',
      }),
    );
  });

  it('should not support target argument with a local config file', async () => {
    // Find the run command
    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    const configPath = 'path/to/config.yaml';
    const targetUUID = '87654321-4321-4321-4321-210987654321';

    // Execute the command with the target option but a path config
    await runCommand!.parseAsync(['node', 'test', '--config', configPath, '--target', targetUUID]);

    // Should log error message
    expect(logger.error).toHaveBeenCalledWith(
      `Target ID (-t) can only be used when -c is used. To use a cloud target inside of a config set the id of the target to promptfoo://provider/${targetUUID}. `,
    );

    // Should set exit code to 1
    expect(process.exitCode).toBe(1);

    // getConfigFromCloud should not be called
    expect(getConfigFromCloud).not.toHaveBeenCalled();

    // doRedteamRun should not be called
    expect(doRedteamRun).not.toHaveBeenCalled();
  });

  it('should not support target argument when no cloud config file is provided', async () => {
    // Find the run command
    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    const targetUUID = '87654321-4321-4321-4321-210987654321';

    // Execute the command with the target option but a path config
    await runCommand!.parseAsync(['node', 'test', '--target', targetUUID]);

    // Should log error message
    expect(logger.error).toHaveBeenCalledWith(
      `Target ID (-t) can only be used when -c is used. To use a cloud target inside of a config set the id of the target to promptfoo://provider/${targetUUID}. `,
    );

    // Should set exit code to 1
    expect(process.exitCode).toBe(1);

    // getConfigFromCloud should not be called
    expect(getConfigFromCloud).not.toHaveBeenCalled();

    // doRedteamRun should not be called
    expect(doRedteamRun).not.toHaveBeenCalled();
  });

  it('should not log an unexpected error for recoverable email validation failures', async () => {
    vi.mocked(doRedteamRun).mockRejectedValueOnce(
      new EmailValidationError(
        'email_verification_required',
        'Please verify your email address and try again.',
      ),
    );

    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    await runCommand!.parseAsync(['node', 'test']);

    expect(process.exitCode).toBe(1);
    expect(logger.error).not.toHaveBeenCalled();
  });

  it('should throw error when target is not a UUID', async () => {
    // UUID format for config but not for target
    const configUUID = '12345678-1234-1234-1234-123456789012';
    const invalidTarget = 'not-a-uuid';

    // Find the run command
    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    // Execute the command with the target option and expect it to throw
    await expect(
      runCommand!.parseAsync(['node', 'test', '--config', configUUID, '--target', invalidTarget]),
    ).rejects.toThrow('Invalid target ID, it must be a valid UUID');

    // Verify getConfigFromCloud was not called
    expect(getConfigFromCloud).not.toHaveBeenCalled();
  });

  it('should handle backwards compatibility with empty targets and a valid target UUID', async () => {
    // Mock the getConfigFromCloud function to return config without targets
    const mockConfig = {
      prompts: ['Test prompt'],
      vars: {},
      providers: [{ id: 'test-provider' }],
      targets: [], // Empty targets
    };
    vi.mocked(getConfigFromCloud).mockResolvedValue(mockConfig);

    // UUID format for config and target
    const configUUID = '12345678-1234-1234-1234-123456789012';
    const targetUUID = '87654321-4321-4321-4321-210987654321';

    // Find the run command
    const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
    expect(runCommand).toBeDefined();

    // Execute the command with the target option
    await runCommand!.parseAsync(['node', 'test', '--config', configUUID, '--target', targetUUID]);

    // Verify that a target was added to the config with the CLOUD_PROVIDER_PREFIX
    expect(mockConfig.targets).toEqual([
      {
        id: `promptfoo://provider/${targetUUID}`,
        config: {},
      },
    ]);

    // Verify doRedteamRun was called with the updated config
    expect(doRedteamRun).toHaveBeenCalledWith(
      expect.objectContaining({
        liveRedteamConfig: mockConfig,
        config: undefined,
        loadedFromCloud: true,
        target: targetUUID,
        eventSource: 'cli',
      }),
    );
  });

  describe('--description flag for custom scan names', () => {
    it('should override config description when --description flag is provided', async () => {
      const mockConfig = {
        description: 'Original Cloud Description',
        prompts: ['Test prompt'],
        vars: {},
        providers: [{ id: 'test-provider' }],
        targets: [{ id: 'test-provider' }],
      };
      vi.mocked(getConfigFromCloud).mockResolvedValue(mockConfig);

      const configUUID = '12345678-1234-1234-1234-123456789012';
      const targetUUID = '87654321-4321-4321-4321-210987654321';
      const customDescription = 'My Custom Scan Name';

      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync([
        'node',
        'test',
        '--config',
        configUUID,
        '--target',
        targetUUID,
        '--description',
        customDescription,
      ]);

      // Verify that the description was overridden
      expect(mockConfig.description).toBe(customDescription);

      // Verify doRedteamRun was called with the updated config
      expect(doRedteamRun).toHaveBeenCalledWith(
        expect.objectContaining({
          liveRedteamConfig: expect.objectContaining({
            description: customDescription,
          }),
          eventSource: 'cli',
        }),
      );
    });

    it('should keep original description when --description flag is not provided', async () => {
      const originalDescription = 'Original Cloud Description';
      const mockConfig = {
        description: originalDescription,
        prompts: ['Test prompt'],
        vars: {},
        providers: [{ id: 'test-provider' }],
        targets: [{ id: 'test-provider' }],
      };
      vi.mocked(getConfigFromCloud).mockResolvedValue(mockConfig);

      const configUUID = '12345678-1234-1234-1234-123456789012';
      const targetUUID = '87654321-4321-4321-4321-210987654321';

      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync([
        'node',
        'test',
        '--config',
        configUUID,
        '--target',
        targetUUID,
      ]);

      // Verify that the description was not changed
      expect(mockConfig.description).toBe(originalDescription);

      // Verify doRedteamRun was called with the original description
      expect(doRedteamRun).toHaveBeenCalledWith(
        expect.objectContaining({
          liveRedteamConfig: expect.objectContaining({
            description: originalDescription,
          }),
          eventSource: 'cli',
        }),
      );
    });

    it('should support short -d flag for description', async () => {
      const mockConfig = {
        description: 'Original Cloud Description',
        prompts: ['Test prompt'],
        vars: {},
        providers: [{ id: 'test-provider' }],
        targets: [{ id: 'test-provider' }],
      };
      vi.mocked(getConfigFromCloud).mockResolvedValue(mockConfig);

      const configUUID = '12345678-1234-1234-1234-123456789012';
      const targetUUID = '87654321-4321-4321-4321-210987654321';
      const customDescription = 'Short Flag Description';

      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync([
        'node',
        'test',
        '-c',
        configUUID,
        '-t',
        targetUUID,
        '-d',
        customDescription,
      ]);

      // Verify that the description was overridden using short flag
      expect(mockConfig.description).toBe(customDescription);
    });
  });

  describe('--tag flag for run-specific eval tags', () => {
    it('should document the repeatable --tag option in help text', () => {
      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      const helpText = runCommand!.helpInformation();

      expect(helpText).toContain('--tag <key=value>');
      expect(helpText).toContain('Set an eval tag in key=value format.');
    });

    it('should pass repeated tags to the evaluation stage with Commander normalization', async () => {
      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync([
        'node',
        'test',
        '--tag',
        'build=first',
        '--tag',
        'build=second',
        '--tag',
        'token=a=b',
        '--tag',
        'empty=',
      ]);

      const options = vi.mocked(doRedteamRun).mock.calls[0][0];
      expect(options).toMatchObject({
        tags: {
          build: 'second',
          token: 'a=b',
          empty: '',
        },
        eventSource: 'cli',
      });
      expect(options).not.toHaveProperty('tag');
    });

    it('should not add a tags property when no --tag is provided', async () => {
      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync(['node', 'test']);

      const options = vi.mocked(doRedteamRun).mock.calls[0][0];
      // Avoid clobbering config-level tags with an undefined/empty runtime value.
      expect(options).not.toHaveProperty('tags');
      expect(options).not.toHaveProperty('tag');
    });

    it.each(['invalid', '=value'])('should reject malformed --tag value %s', (tagValue) => {
      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();
      runCommand!.exitOverride();

      expect(() => runCommand!.parseOptions(['--tag', tagValue])).toThrow(
        '--tag must be specified in key=value format.',
      );
    });
  });

  describe('error handling', () => {
    it('should suppress stack trace when doRedteamRun throws ProbeLimitExceededError', async () => {
      vi.mocked(doRedteamRun).mockRejectedValueOnce(new ProbeLimitExceededError(100, 100));

      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync(['node', 'test']);

      expect(logger.error).not.toHaveBeenCalledWith(
        expect.stringContaining('An unexpected error occurred during red team run'),
      );
      expect(process.exitCode).toBe(1);
    });

    it('should still log unexpected errors with stack', async () => {
      const boom = new Error('boom');
      vi.mocked(doRedteamRun).mockRejectedValueOnce(boom);

      const runCommand = program.commands.find((cmd) => cmd.name() === 'run');
      expect(runCommand).toBeDefined();

      await runCommand!.parseAsync(['node', 'test']);

      expect(logger.error).toHaveBeenCalledWith(
        expect.stringContaining('An unexpected error occurred during red team run: boom'),
      );
      expect(process.exitCode).toBe(1);
    });
  });
});