/**
 * Pattern Health Monitoring Types (FEAT-002)
 *
 * Tracks the health of learned patterns over time and detects degradation.
 */
/**
 * Health status of a learned pattern.
 */
export type PatternHealthStatus = 'healthy' | 'degraded' | 'failing' | 'broken';
/**
 * Snapshot of pattern health at a specific time.
 */
export interface PatternHealthSnapshot {
    /** Timestamp of this snapshot */
    timestamp: number;
    /** Success rate at this point (0-1) */
    successRate: number;
    /** Number of attempts in this sample */
    sampleSize: number;
    /** Total verification count at this point */
    totalVerifications: number;
    /** Total failure count at this point */
    totalFailures: number;
}
/**
 * Pattern health metadata tracked over time.
 */
export interface PatternHealth {
    /** Current health status */
    status: PatternHealthStatus;
    /** Current success rate (0-1) */
    currentSuccessRate: number;
    /** Historical health snapshots (last 30 days) */
    history: PatternHealthSnapshot[];
    /** Timestamp of last health check */
    lastHealthCheck: number;
    /** Timestamp when degradation was first detected (if degraded) */
    degradationDetectedAt?: number;
    /** Number of consecutive failures (resets on success) */
    consecutiveFailures: number;
    /** Recommended actions based on health status */
    recommendedActions?: string[];
}
/**
 * Configuration for pattern health thresholds.
 */
export interface PatternHealthConfig {
    /** Success rate below this is considered degraded (default: 0.7) */
    degradationThreshold: number;
    /** Success rate below this is considered failing (default: 0.5) */
    failingThreshold: number;
    /** Success rate below this is considered broken (default: 0.2) */
    brokenThreshold: number;
    /** Consecutive failures before marking degraded (default: 3) */
    consecutiveFailureThreshold: number;
    /** Minimum sample size before evaluating health (default: 5) */
    minSampleSize: number;
    /** Maximum history snapshots to keep (default: 30) */
    maxHistoryLength: number;
    /** Days of history to keep (default: 30) */
    historyRetentionDays: number;
}
/**
 * Notification about pattern health change.
 */
export interface PatternHealthNotification {
    /** Pattern that changed */
    domain: string;
    /** Endpoint of the pattern */
    endpoint: string;
    /** Previous health status */
    previousStatus: PatternHealthStatus;
    /** New health status */
    newStatus: PatternHealthStatus;
    /** Timestamp of the change */
    timestamp: number;
    /** Current success rate */
    successRate: number;
    /** Suggested actions */
    suggestedActions: string[];
    /** Additional context */
    context?: {
        consecutiveFailures?: number;
        lastFailureType?: string;
        recentFailures?: number;
    };
}
/**
 * Options for checking pattern health.
 */
export interface HealthCheckOptions {
    /** Force health check even if recently checked */
    force?: boolean;
    /** Minimum time since last check (ms, default: 1 hour) */
    minCheckInterval?: number;
    /** Whether to record snapshot in history */
    recordSnapshot?: boolean;
}
/**
 * Result of a pattern health check.
 */
export interface HealthCheckResult {
    /** Domain of the pattern */
    domain: string;
    /** Endpoint of the pattern */
    endpoint: string;
    /** Health before check */
    previousHealth: PatternHealth;
    /** Health after check */
    currentHealth: PatternHealth;
    /** Whether status changed */
    statusChanged: boolean;
    /** Notification if status changed */
    notification?: PatternHealthNotification;
}
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