refactor(new merge) (#369)

Co-authored-by: paisley <8197966+su8su@users.noreply.github.com>
Co-authored-by: zuolingxuan <zuolingxuan@bytedance.com>

src/lib/error-model.ts

@@ -0,0 +1,102 @@
+export type AppErrorCode =
+  | 'AUTH_INVALID'
+  | 'TIMEOUT'
+  | 'RATE_LIMIT'
+  | 'PERMISSION'
+  | 'CHANNEL_UNAVAILABLE'
+  | 'NETWORK'
+  | 'CONFIG'
+  | 'GATEWAY'
+  | 'UNKNOWN';
+
+export class AppError extends Error {
+  code: AppErrorCode;
+  cause?: unknown;
+  details?: Record<string, unknown>;
+
+  constructor(code: AppErrorCode, message: string, cause?: unknown, details?: Record<string, unknown>) {
+    super(message);
+    this.code = code;
+    this.cause = cause;
+    this.details = details;
+  }
+}
+
+export function mapBackendErrorCode(code?: string): AppErrorCode {
+  switch (code) {
+    case 'TIMEOUT':
+      return 'TIMEOUT';
+    case 'PERMISSION':
+      return 'PERMISSION';
+    case 'GATEWAY':
+      return 'GATEWAY';
+    case 'VALIDATION':
+      return 'CONFIG';
+    case 'UNSUPPORTED':
+      return 'CHANNEL_UNAVAILABLE';
+    default:
+      return 'UNKNOWN';
+  }
+}
+
+function classifyMessage(message: string): AppErrorCode {
+  const lower = message.toLowerCase();
+
+  if (
+    lower.includes('invalid ipc channel')
+    || lower.includes('no handler registered')
+    || lower.includes('window is not defined')
+    || lower.includes('unsupported')
+  ) {
+    return 'CHANNEL_UNAVAILABLE';
+  }
+  if (
+    lower.includes('invalid authentication')
+    || lower.includes('unauthorized')
+    || lower.includes('auth failed')
+    || lower.includes('401')
+  ) {
+    return 'AUTH_INVALID';
+  }
+  if (lower.includes('timeout') || lower.includes('timed out') || lower.includes('abort')) {
+    return 'TIMEOUT';
+  }
+  if (lower.includes('rate limit') || lower.includes('429')) {
+    return 'RATE_LIMIT';
+  }
+  if (
+    lower.includes('permission')
+    || lower.includes('forbidden')
+    || lower.includes('denied')
+    || lower.includes('403')
+  ) {
+    return 'PERMISSION';
+  }
+  if (
+    lower.includes('network')
+    || lower.includes('fetch')
+    || lower.includes('econnrefused')
+    || lower.includes('econnreset')
+    || lower.includes('enotfound')
+  ) {
+    return 'NETWORK';
+  }
+  if (lower.includes('gateway')) {
+    return 'GATEWAY';
+  }
+  if (lower.includes('config') || lower.includes('invalid') || lower.includes('validation') || lower.includes('400')) {
+    return 'CONFIG';
+  }
+
+  return 'UNKNOWN';
+}
+
+export function normalizeAppError(err: unknown, details?: Record<string, unknown>): AppError {
+  if (err instanceof AppError) {
+    return new AppError(err.code, err.message, err.cause ?? err, { ...(err.details ?? {}), ...(details ?? {}) });
+  }
+
+  const message = err instanceof Error ? err.message : String(err);
+  return new AppError(classifyMessage(message), message, err, details);
+}
+