/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { type PolicyEngineConfig, type PolicyRule, type ApprovalMode, type PolicySettings } from './types.js';
import { ApprovalMode as ApprovalModeEnum } from '../config/config.js';
import type { PolicyEngine } from './policy-engine.js';
import { type PolicyFileError } from './toml-loader.js';
import { type MessageBus } from '../confirmation-bus/message-bus.js';
export declare const DEFAULT_CORE_POLICIES_DIR: string;
export declare const DEFAULT_POLICY_TIER = 1;
export declare const USER_POLICY_TIER = 2;
export declare const ADMIN_POLICY_TIER = 3;
/**
 * Gets the list of directories to search for policy files, in order of increasing priority
 * (Default -> User -> Admin).
 *
 * @param defaultPoliciesDir Optional path to a directory containing default policies.
 */
export declare function getPolicyDirectories(defaultPoliciesDir?: string): string[];
/**
 * Determines the policy tier (1=default, 2=user, 3=admin) for a given directory.
 * This is used by the TOML loader to assign priority bands.
 */
export declare function getPolicyTier(dir: string, defaultPoliciesDir?: string): number;
/**
 * Formats a policy file error for console logging.
 */
export declare function formatPolicyError(error: PolicyFileError): string;
/**
 * Interface for config sources used by migrateLegacyApprovalMode.
 * This allows decoupling from the full Config class for testing.
 */
export interface PolicyConfigSource {
    getApprovalMode: () => ApprovalModeEnum;
    getAllowedTools: () => string[] | undefined;
    getNonInteractive: () => boolean;
    getUserPolicyPath?: () => string | undefined;
}
/**
 * Migrates legacy approval mode settings to policy rules.
 *
 * This function handles:
 * - ApprovalMode.YOLO → wildcard allow-all rule at priority 1.999
 * - ApprovalMode.AUTO_EDIT → allow rules for write tools at priority 1.015
 * - --allowed-tools flag → allow rules at priority 2.3
 *
 * @param config Source of configuration values
 * @returns Array of PolicyRule objects for the legacy settings
 */
export declare function migrateLegacyApprovalMode(config: PolicyConfigSource): PolicyRule[];
export declare function createPolicyEngineConfig(config: PolicyConfigSource): Promise<PolicyEngineConfig>;
export declare function createPolicyEngineConfig(settings: PolicySettings, approvalMode: ApprovalMode, defaultPoliciesDir?: string): Promise<PolicyEngineConfig>;
export declare function createPolicyUpdater(policyEngine: PolicyEngine, messageBus: MessageBus): void;