export type GenerationSubmissionErrorCode =
  | "generation_blocked"
  | "generation_idempotency_conflict"
  | "generation_not_found"
  | "generation_request_invalid"
  | "generation_storage_unavailable"
  | "model_config_stale"
  | "reference_invalid";

export class GenerationSubmissionError extends Error {
  readonly code: GenerationSubmissionErrorCode;
  readonly errorCategory: "gateway_balance_insufficient" | "gateway_contract_invalid" | "model_disabled" | "reference_invalid" | undefined;
  readonly latest: { configVersion: number; creditCost: number; modelId: string } | undefined;
  readonly storage: { capacityStatus: "normal" | "warning" | "critical" | "full" | "unavailable"; remainingBytes: number } | undefined;

  constructor(
    code: GenerationSubmissionErrorCode,
    options: {
      errorCategory?: "gateway_balance_insufficient" | "gateway_contract_invalid" | "model_disabled" | "reference_invalid";
      latest?: { configVersion: number; creditCost: number; modelId: string };
      storage?: { capacityStatus: "normal" | "warning" | "critical" | "full" | "unavailable"; remainingBytes: number };
    } = {},
  ) {
    super(code);
    this.code = code;
    this.errorCategory = options.errorCategory;
    this.latest = options.latest;
    this.storage = options.storage;
  }
}