import { BotError, ErrorCategory } from '../../src/errors/BotError';

describe('BotError', () => {
  it('should create a BotError with all properties', () => {
    const error = new BotError({
      code: 'E1001',
      category: ErrorCategory.USER_INPUT,
      messageKey: 'errors.E1001',
    });

    expect(error).toBeInstanceOf(Error);
    expect(error).toBeInstanceOf(BotError);
    expect(error.name).toBe('BotError');
    expect(error.code).toBe('E1001');
    expect(error.category).toBe(ErrorCategory.USER_INPUT);
    expect(error.messageKey).toBe('errors.E1001');
    expect(error.message).toBe('[E1001] errors.E1001');
  });

  it('should create a BotError without optional cause', () => {
    const error = new BotError({
      code: 'E3999',
      category: ErrorCategory.BOT_INTERNAL,
      messageKey: 'errors.E3999',
    });

    expect(error.cause).toBeUndefined();
  });

  it('should preserve the original cause error', () => {
    const originalError = new Error('DB connection failed');
    const error = new BotError({
      code: 'E3001',
      category: ErrorCategory.BOT_INTERNAL,
      messageKey: 'errors.E3001',
      cause: originalError,
    });

    expect(error.cause).toBe(originalError);
    expect(error.cause?.message).toBe('DB connection failed');
  });

  it('should have correct category values', () => {
    expect(ErrorCategory.USER_INPUT).toBe('USER_INPUT');
    expect(ErrorCategory.PERMISSION).toBe('PERMISSION');
    expect(ErrorCategory.BOT_INTERNAL).toBe('BOT_INTERNAL');
    expect(ErrorCategory.DISCORD_API).toBe('DISCORD_API');
  });
});