import type { Policy } from "@iota-policy/core";
export type BlessDecision = "approved" | "rejected";
export interface ApprovedVersion {
    sha256: string;
    decidedAt: string;
    /** Exact approved text — parseable, so it can keep governing as a fallback. */
    text: string;
}
export interface BlessRecord {
    sha256: string;
    decision: BlessDecision;
    decidedAt: string;
    /** Exact policy text the decision was made on — enables diff on re-bless. */
    text: string;
    /**
     * The last APPROVED version, preserved across rejections of later
     * versions. This is the continuity anchor: when the file changes under
     * you (e.g. a git pull in a shared repo), the version you approved keeps
     * governing until you approve a new one — an unapproved edit can never
     * downgrade you from "governed" to "ungoverned".
     */
    lastApproved?: ApprovedVersion;
}
export interface BlessStore {
    version: 1;
    entries: Record<string, BlessRecord>;
}
export type BlessStatus = {
    kind: "approved";
}
/** Current file was rejected; fallback = last approved version, if any. */
 | {
    kind: "rejected";
    fallback?: ApprovedVersion;
}
/** File differs from the decided version; previous enables a diff, fallback keeps governing. */
 | {
    kind: "stale";
    previous: BlessRecord;
    fallback?: ApprovedVersion;
} | {
    kind: "unblessed";
};
export declare function defaultBlessStorePath(): string;
export declare function readBlessStore(storePath: string): BlessStore;
export declare function blessStatus(store: BlessStore, policyPath: string, sha256: string): BlessStatus;
export declare function recordBless(storePath: string, policyPath: string, sha256: string, decision?: BlessDecision, text?: string): void;
/**
 * Line diff for the re-bless prompt: what left, what arrived. Order-aware
 * enough for policy review (multiset line comparison), deliberately not a
 * full LCS — policies are small and the goal is "what changed", not patch
 * fidelity.
 */
export declare function diffPolicyText(oldText: string, newText: string): string;
/**
 * Human-readable grant summary for the bless prompt. Every best_effort
 * pattern is called out — this is the built-in review moment (SPEC §8.2).
 */
export declare function summarizePolicy(policy: Policy): string;