import type { AddBreakpointCommentParams, AssignBreakpointParams, BreakpointBackend, BreakpointBackendCapabilities, BreakpointExport, BreakpointMetricsSummary, BreakpointSearchQuery, BulkBreakpointOperationResult, BulkUpdateBreakpointsParams, SubmitBreakpointParams, TransitionBreakpointParams, WaitForAnswerOptions, SubmitAnswerParams } from "../backend.js";
import type { Breakpoint, BreakpointComment, BreakpointPublicAnswer, BreakpointWaitResult, ProvenVerificationResult } from "../types.js";
export interface GitNativeBackendOptions {
    /** Path to the .breakpoints directory. Defaults to `.breakpoints` in cwd. */
    breakpointsDir?: string;
    /** Default poll interval in ms. Defaults to 3000. */
    pollIntervalMs?: number;
    /** Default timeout in ms. Defaults to 30 minutes. */
    timeoutMs?: number;
    /** Path to a .key.json private key file for signing answers. Optional. */
    signingKeyPath?: string;
}
export declare class GitNativeBackend implements BreakpointBackend {
    readonly name = "git-native";
    private breakpointsDir;
    private defaultPollIntervalMs;
    private defaultTimeoutMs;
    private signingKeyPath;
    constructor(options?: GitNativeBackendOptions);
    private breakpointPath;
    private answerPath;
    private provenPath;
    capabilities(): BreakpointBackendCapabilities;
    /**
     * Load the signing key from the configured signingKeyPath.
     * Returns null if no signing key is configured or the file cannot be read.
     */
    private loadSigningKey;
    /**
     * Load a proven answer file for a breakpoint, if it exists.
     */
    private loadProvenAnswer;
    private loadStoredAnswer;
    private loadPublicAnswer;
    private writeBreakpoint;
    private historyEntry;
    private auditEntry;
    private listAllBreakpoints;
    private assertBlockingDependenciesSatisfied;
    submitBreakpoint(params: SubmitBreakpointParams): Promise<Breakpoint>;
    getBreakpoint(id: string): Promise<Breakpoint>;
    waitForAnswer(id: string, options?: WaitForAnswerOptions): Promise<BreakpointWaitResult>;
    listPendingBreakpoints(responderId?: string): Promise<Breakpoint[]>;
    answerBreakpoint(id: string, answer: SubmitAnswerParams): Promise<BreakpointPublicAnswer>;
    cancelBreakpoint(id: string): Promise<void>;
    claimBreakpoint(id: string, responderId: string): Promise<Breakpoint>;
    assignBreakpoint(id: string, params: AssignBreakpointParams): Promise<Breakpoint>;
    transitionBreakpoint(id: string, params: TransitionBreakpointParams): Promise<Breakpoint>;
    addBreakpointComment(id: string, params: AddBreakpointCommentParams): Promise<BreakpointComment>;
    searchBreakpoints(query: BreakpointSearchQuery): Promise<{
        items: Breakpoint[];
        total: number;
        offset: number;
        limit: number;
    }>;
    bulkUpdateBreakpoints(params: BulkUpdateBreakpointsParams): Promise<BulkBreakpointOperationResult>;
    getBreakpointMetrics(query?: BreakpointSearchQuery): Promise<BreakpointMetricsSummary>;
    exportBreakpoints(query?: BreakpointSearchQuery): Promise<BreakpointExport>;
    /**
     * Verify the selected public answer against trusted public keys.
     */
    verifyAnswer(id: string): Promise<ProvenVerificationResult>;
    /**
     * Verify a loaded ProvenBreakpointAnswer against trusted keys in the
     * breakpoints directory.
     */
    private verifyProvenFile;
}
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