/**
 * CandidateStore — in-memory test double using a Map.
 */
import type { CandidateRecord, CandidateStore } from './candidate-store.js';
import { type AdmissionEvaluationRecord, type AdmissionProcessingRecord, type CandidateAdmissionDocument } from './admission-document.js';
export declare class MemoryCandidateStore implements CandidateStore {
    private readonly candidates;
    private readonly admissions;
    /**
     * Returns candidates filtered directly by taskId field.
     * Note: SQLite version JOINs tasks→runs→commits→candidates.
     * This test double uses the denormalized taskId field directly,
     * which is equivalent in normal data flows.
     */
    getCandidatesByTaskId(taskId: string): Promise<CandidateRecord[]>;
    getCandidate(candidateId: string): Promise<CandidateRecord | null>;
    updateCandidateStatus(candidateId: string, patch: {
        status: CandidateRecord['status'];
    }): Promise<boolean>;
    transitionCandidateStatus(candidateId: string, expectedStatus: CandidateRecord['status'], newStatus: CandidateRecord['status']): Promise<boolean>;
    getAdmissionDocument(candidateId: string): Promise<{
        ok: true;
        document: CandidateAdmissionDocument | null;
    } | {
        ok: false;
        reason: string;
    }>;
    appendAdmissionEvaluation(candidateId: string, evaluation: AdmissionEvaluationRecord): Promise<{
        status: 'appended' | 'reused';
        document: CandidateAdmissionDocument;
    } | {
        status: 'refused';
        reason: string;
    }>;
    updateAdmissionProcessing(candidateId: string, processing: AdmissionProcessingRecord): Promise<boolean>;
    listDiagnosisPostProcessingBacklog(options: {
        limit: number;
        nowIso?: string;
    }): {
        eligible: {
            candidateId: string;
            taskId: string;
            status: string;
            createdAt: string;
            processingState: string | null;
        }[];
        corrupt: {
            candidateId: string;
            taskId: string;
            status: string;
            createdAt: string;
        }[];
    };
    insert(record: CandidateRecord): void;
    clear(): void;
}
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