/**
 * CCS Error Codes
 * Documentation: https://docs.ccs.kaitran.ca/reference/error-codes
 */

export const ERROR_CODES = {
  // Configuration Errors (E100-E199)
  CONFIG_MISSING: 'E101',
  CONFIG_INVALID_JSON: 'E102',
  CONFIG_INVALID_PROFILE: 'E103',

  // Profile Management Errors (E104-E107)
  PROFILE_NOT_FOUND: 'E104',
  PROFILE_ALREADY_EXISTS: 'E105',
  PROFILE_CANNOT_DELETE_DEFAULT: 'E106',
  PROFILE_INVALID_NAME: 'E107',

  // Claude CLI Detection Errors (E300-E399)
  CLAUDE_NOT_FOUND: 'E301',
  CLAUDE_VERSION_INCOMPATIBLE: 'E302',
  CLAUDE_EXECUTION_FAILED: 'E303',

  // Network/API Errors (E400-E499)
  GLMT_PROXY_TIMEOUT: 'E401',
  API_KEY_MISSING: 'E402',
  API_AUTH_FAILED: 'E403',
  API_RATE_LIMIT: 'E404',

  // File System Errors (E500-E599)
  FS_CANNOT_CREATE_DIR: 'E501',
  FS_CANNOT_WRITE_FILE: 'E502',
  FS_CANNOT_READ_FILE: 'E503',
  FS_INSTANCE_NOT_FOUND: 'E504',

  // Internal Errors (E900-E999)
  INTERNAL_ERROR: 'E900',
  INVALID_STATE: 'E901',
} as const;

export type ErrorCode = (typeof ERROR_CODES)[keyof typeof ERROR_CODES];

const ERROR_CODE_DOCS_BASE_URL = 'https://docs.ccs.kaitran.ca/reference/error-codes';

/**
 * Error code documentation URL generator
 */
export function getErrorDocUrl(errorCode: ErrorCode): string {
  return `${ERROR_CODE_DOCS_BASE_URL}#${errorCode.toLowerCase()}`;
}

/**
 * Get error category from code
 */
export function getErrorCategory(errorCode: ErrorCode): string {
  if (
    errorCode === ERROR_CODES.PROFILE_NOT_FOUND ||
    errorCode === ERROR_CODES.PROFILE_ALREADY_EXISTS ||
    errorCode === ERROR_CODES.PROFILE_CANNOT_DELETE_DEFAULT ||
    errorCode === ERROR_CODES.PROFILE_INVALID_NAME
  ) {
    return 'Profile Management';
  }

  const code = parseInt(errorCode.substring(1), 10);
  if (code >= 100 && code < 200) return 'Configuration';
  if (code >= 300 && code < 400) return 'Claude CLI Detection';
  if (code >= 400 && code < 500) return 'Network/API';
  if (code >= 500 && code < 600) return 'File System';
  if (code >= 900 && code < 1000) return 'Internal';
  return 'Unknown';
}