// Strict AST validation contract preventing stochastic hallucination
export interface DeterministicActionContract<TContext, TParams, TResult> {
  readonly actionId: string;
  readonly idempotencyKey: (ctx: TContext, params: TParams) => string;
  readonly preFlightGuards: Array<(ctx: TContext) => Promise<GuardAssertion>>;
  readonly execute: (ctx: TContext, params: TParams) => Promise<TResult>;
  readonly compensationRollback: (ctx: TContext, params: TParams, err: Error) => Promise<void>;
  readonly auditProofGenerator: (result: TResult) => CryptographicAuditRecord;
}

export const executeCRMAction = async <C, P, R>(
  contract: DeterministicActionContract<C, P, R>,
  context: C,
  params: P
): Promise<ExecutionEnvelope<R>> => {
  // Phase 1: Exhaustive Guard Evaluation (0% LLM guesswork)
  for (const guard of contract.preFlightGuards) {
    const assertion = await guard(context);
    if (!assertion.valid) {
      throw new DeterministicGuardException(assertion.violationCode, assertion.reason);
    }
  }
  // Phase 2: Idempotent Atomic Action Execution
  return await runWithTwoPhaseLocking(contract, context, params);
};