1 files changed, 130 insertions, 0 deletions
diff --git a/packages/sdk/src/core/error.ts b/packages/sdk/src/core/error.ts
new file mode 100644
index 000000000..44698c739
--- /dev/null
+++ b/packages/sdk/src/core/error.ts
@@ -0,0 +1,130 @@
+// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+
+import { castToError } from '../internal/errors';
+
+export class OpencodeError extends Error {}
+
+export class APIError<
+  TStatus extends number | undefined = number | undefined,
+  THeaders extends Headers | undefined = Headers | undefined,
+  TError extends Object | undefined = Object | undefined,
+> extends OpencodeError {
+  /** HTTP status for the response that caused the error */
+  readonly status: TStatus;
+  /** HTTP headers for the response that caused the error */
+  readonly headers: THeaders;
+  /** JSON body of the response that caused the error */
+  readonly error: TError;
+
+  constructor(status: TStatus, error: TError, message: string | undefined, headers: THeaders) {
+    super(`${APIError.makeMessage(status, error, message)}`);
+    this.status = status;
+    this.headers = headers;
+    this.error = error;
+  }
+
+  private static makeMessage(status: number | undefined, error: any, message: string | undefined) {
+    const msg =
+      error?.message ?
+        typeof error.message === 'string' ?
+          error.message
+        : JSON.stringify(error.message)
+      : error ? JSON.stringify(error)
+      : message;
+
+    if (status && msg) {
+      return `${status} ${msg}`;
+    }
+    if (status) {
+      return `${status} status code (no body)`;
+    }
+    if (msg) {
+      return msg;
+    }
+    return '(no status code or body)';
+  }
+
+  static generate(
+    status: number | undefined,
+    errorResponse: Object | undefined,
+    message: string | undefined,
+    headers: Headers | undefined,
+  ): APIError {
+    if (!status || !headers) {
+      return new APIConnectionError({ message, cause: castToError(errorResponse) });
+    }
+
+    const error = errorResponse as Record<string, any>;
+
+    if (status === 400) {
+      return new BadRequestError(status, error, message, headers);
+    }
+
+    if (status === 401) {
+      return new AuthenticationError(status, error, message, headers);
+    }
+
+    if (status === 403) {
+      return new PermissionDeniedError(status, error, message, headers);
+    }
+
+    if (status === 404) {
+      return new NotFoundError(status, error, message, headers);
+    }
+
+    if (status === 409) {
+      return new ConflictError(status, error, message, headers);
+    }
+
+    if (status === 422) {
+      return new UnprocessableEntityError(status, error, message, headers);
+    }
+
+    if (status === 429) {
+      return new RateLimitError(status, error, message, headers);
+    }
+
+    if (status >= 500) {
+      return new InternalServerError(status, error, message, headers);
+    }
+
+    return new APIError(status, error, message, headers);
+  }
+}
+
+export class APIUserAbortError extends APIError<undefined, undefined, undefined> {
+  constructor({ message }: { message?: string } = {}) {
+    super(undefined, undefined, message || 'Request was aborted.', undefined);
+  }
+}
+
+export class APIConnectionError extends APIError<undefined, undefined, undefined> {
+  constructor({ message, cause }: { message?: string | undefined; cause?: Error | undefined }) {
+    super(undefined, undefined, message || 'Connection error.', undefined);
+    // in some environments the 'cause' property is already declared
+    // @ts-ignore
+    if (cause) this.cause = cause;
+  }
+}
+
+export class APIConnectionTimeoutError extends APIConnectionError {
+  constructor({ message }: { message?: string } = {}) {
+    super({ message: message ?? 'Request timed out.' });
+  }
+}
+
+export class BadRequestError extends APIError<400, Headers> {}
+
+export class AuthenticationError extends APIError<401, Headers> {}
+
+export class PermissionDeniedError extends APIError<403, Headers> {}
+
+export class NotFoundError extends APIError<404, Headers> {}
+
+export class ConflictError extends APIError<409, Headers> {}
+
+export class UnprocessableEntityError extends APIError<422, Headers> {}
+
+export class RateLimitError extends APIError<429, Headers> {}
+
+export class InternalServerError extends APIError<number, Headers> {}