import type { CanonicalState, SynthEvent } from "../types/index.js";
export type HealthStatus = "pass" | "warn" | "fail";
export type HealthReport = {
    status: "healthy" | "degraded" | "unhealthy";
    checks: HealthCheck[];
    summary: {
        pass: number;
        warn: number;
        fail: number;
    };
};
export type HealthCheck = {
    name: string;
    status: HealthStatus;
    detail?: string;
};
export interface StateReader {
    /** Load the current canonical state projection */
    loadState(): Promise<CanonicalState>;
    /** Load all events from the event store */
    loadEvents(): Promise<SynthEvent[]>;
    /** Run a basic health check on the state/read path */
    checkHealth(): Promise<HealthReport>;
    /** Verify that replaying events produces a consistent state */
    verifyReplay(): Promise<{
        consistent: boolean;
        eventCount: number;
    }>;
}