import { type ServiceSpec } from "./service-definition.js";
import type { ServiceHost } from "./service-host.js";
import type { ServiceMigrationBackup, ServiceMigrationFile } from "./service-migration-types.js";
import { type LegacyRuntimeTreeReceipt } from "./service-migration-runtime-tree.js";
import { type LegacyNodeRuntimeReceipt } from "./service-migration-node-runtime.js";
export { digestServiceMigrationReloadOldReceipt } from "./service-migration-receipt-digest.js";
interface RetainedRuntimeContract {
    runtime: LegacyRuntimeTreeReceipt;
    node: LegacyNodeRuntimeReceipt;
    original: ServiceSpec;
    rollback: ServiceSpec;
}
export type RetainedLegacyRuntime = RetainedRuntimeContract & ({
    schemaVersion: 1;
    sourceRoot: string;
} | {
    schemaVersion: 2;
    sourceRoots: string[];
});
export type ServiceMigrationRollbackContractFile = {
    state: "file";
    role: ServiceMigrationFile["role"];
    path: string;
    mode: number;
    sha256: string;
} | {
    state: "absent";
    role: "target-configuration";
    path: string;
};
export interface ServiceMigrationRollbackContract {
    schemaVersion: 1;
    platform: "darwin" | "linux";
    scope: ServiceSpec["scope"];
    previousEnabled: boolean;
    rollback: ServiceSpec;
    files: ServiceMigrationRollbackContractFile[];
}
/** 仅排除旧内核明确使用的配置与持久数据，不接受客户端任意忽略运行文件。 */
export declare function legacyRuntimeExclusions(original: ServiceSpec, sourceRoot: string): string[];
/** 纯解析；磁盘内容须由异步verify在停机及回退前核实。 */
export declare function parseRetainedLegacyRuntime(input: unknown): RetainedLegacyRuntime;
export declare function bindRetainedLegacyRuntimeForest(original: ServiceSpec, sourceRoots: string[], runtime: LegacyRuntimeTreeReceipt, node: LegacyNodeRuntimeReceipt): Promise<RetainedLegacyRuntime>;
export declare function bindRetainedLegacyRuntime(original: ServiceSpec, sourceRoot: string, runtime: LegacyRuntimeTreeReceipt, node: LegacyNodeRuntimeReceipt): Promise<RetainedLegacyRuntime>;
export declare function verifyRetainedLegacyRuntime(input: RetainedLegacyRuntime): Promise<void>;
/**
 * 固化旧服务回退会实际写入的完整字节契约。definition/metadata 取保留运行时派生值，
 * configuration/runner 取原始备份；角色顺序不受备份数组顺序影响。
 */
export declare function createServiceMigrationRollbackContract(backup: ServiceMigrationBackup, host: ServiceHost): {
    contract: ServiceMigrationRollbackContract;
    digest: string;
};
export declare function retainedRollbackFiles(backup: ServiceMigrationBackup, host: ServiceHost): {
    path: string;
    bytes: Buffer<ArrayBuffer>;
    mode: number;
}[];
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