/**
 * SMI-2277: Approval Repository
 *
 * Persists multi-approval state to SQLite instead of in-memory Map.
 * This ensures pending approvals survive service restarts.
 *
 * @module @skillsmith/core/repositories/quarantine/ApprovalRepository
 */
import type { Database as DatabaseType } from '../../db/database-interface.js';
/**
 * Database row for quarantine_approvals table
 */
export interface ApprovalRow {
    id: string;
    skill_id: string;
    reviewer_id: string;
    reviewer_email: string;
    decision: 'approved' | 'rejected';
    reason: string | null;
    created_at: string;
    completed_at: string | null;
    required_approvals: number;
    is_complete: number;
}
/**
 * Domain object for a recorded approval
 */
export interface ApprovalEntry {
    id: string;
    skillId: string;
    reviewerId: string;
    reviewerEmail: string;
    decision: 'approved' | 'rejected';
    reason: string | null;
    createdAt: string;
    completedAt: string | null;
    requiredApprovals: number;
    isComplete: boolean;
}
/**
 * Input for recording a new approval
 */
export interface RecordApprovalInput {
    skillId: string;
    reviewerId: string;
    reviewerEmail: string;
    decision: 'approved' | 'rejected';
    reason?: string;
    requiredApprovals?: number;
}
/**
 * Repository for persisting multi-approval workflow state.
 *
 * Replaces the in-memory Map<string, MultiApprovalStatus> with
 * database-backed storage to survive service restarts.
 *
 * @example
 * ```typescript
 * const repo = new ApprovalRepository(db)
 *
 * // Record a reviewer's approval
 * repo.recordApproval({
 *   skillId: 'quarantine-123',
 *   reviewerId: 'user-456',
 *   reviewerRole: 'reviewer@example.com',
 *   decision: 'approved',
 *   reason: 'Code verified safe',
 * })
 *
 * // Check if enough approvals have been collected
 * const complete = repo.isComplete('quarantine-123')
 * ```
 */
export declare class ApprovalRepository {
    private db;
    constructor(db: DatabaseType);
    /**
     * Ensure the quarantine_approvals table exists
     */
    private ensureTableExists;
    /**
     * Record a new approval or rejection for a quarantine entry
     *
     * @param input - Approval details
     * @returns The created approval entry
     * @throws Error if reviewer has already submitted for this skill
     */
    recordApproval(input: RecordApprovalInput): ApprovalEntry;
    /**
     * Get all approvals for a quarantine entry (both pending and complete)
     *
     * @param skillId - The quarantine entry ID
     * @returns All approval entries for this skill
     */
    getApprovals(skillId: string): ApprovalEntry[];
    /**
     * Get only pending (non-complete) approvals for a quarantine entry
     *
     * @param skillId - The quarantine entry ID
     * @returns Pending approval entries
     */
    getPendingApprovals(skillId: string): ApprovalEntry[];
    /**
     * Check if a specific reviewer has already submitted for a skill
     *
     * @param skillId - The quarantine entry ID
     * @param reviewerId - The reviewer's user ID
     * @returns True if the reviewer already has a pending approval
     */
    hasReviewerApproved(skillId: string, reviewerId: string): boolean;
    /**
     * Check if the required number of approvals have been reached
     *
     * @param skillId - The quarantine entry ID
     * @param requiredApprovals - Number of approvals needed (default: 2)
     * @returns True if approval count meets or exceeds required
     */
    isComplete(skillId: string, requiredApprovals?: number): boolean;
    /**
     * Mark all pending approvals for a skill as complete
     *
     * @param skillId - The quarantine entry ID
     * @returns Number of rows updated
     */
    markComplete(skillId: string): number;
    /**
     * Delete all approvals for a skill (for cleanup/reset/cancellation)
     *
     * @param skillId - The quarantine entry ID
     * @returns Number of rows deleted
     */
    clearApprovals(skillId: string): number;
    /**
     * Get the timestamp of the first pending approval for timeout checks
     *
     * @param skillId - The quarantine entry ID
     * @returns ISO date string of the first approval, or null if none
     */
    getWorkflowStartTime(skillId: string): string | null;
    /**
     * Get the count of pending approvals for a skill
     *
     * @param skillId - The quarantine entry ID
     * @returns Count of pending approved entries
     */
    getPendingApprovalCount(skillId: string): number;
}
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