import type { Insight } from './detectors/index.js';
import type { SessionStats } from './session.js';
export interface SnapshotSession {
    sessionId: string;
    sessionIdHash: string;
    projectDir: string;
    isSubagent: boolean;
    startedAt: string | undefined;
    endedAt: string | undefined;
    durationMs: number | undefined;
    totalCostUsd: number;
    totalInputTokens: number;
    totalOutputTokens: number;
    totalCacheReadTokens: number;
    totalCacheCreate5mTokens: number;
    totalCacheCreate1hTokens: number;
    assistantTurnCount: number;
    syntheticTurnCount: number;
    userTurnCount: number;
    apiErrorCount: number;
    apiRetryCount: number;
    modelsUsed: string[];
    toolUsage: Array<{
        toolName: string;
        callCount: number;
        totalOutputBytes: number;
        errorCount: number;
    }>;
}
export interface SnapshotProject {
    projectDir: string;
    displayName: string;
    sessionCount: number;
    totalCostUsd: number;
    leakScoreUsd: number;
}
export interface SnapshotToolGlobal {
    toolName: string;
    totalCalls: number;
    totalOutputBytes: number;
    totalErrors: number;
    errorRate: number;
    sessionCount: number;
}
export interface SnapshotMeta {
    generatedAt: string;
    burndVersion: string;
    filesScanned: number;
    sessionsScanned: number;
    recordsParsed: number;
    recordsSkipped: number;
    isPro: boolean;
}
export interface SnapshotTotals {
    totalCostUsdAllTime: number;
    totalCostUsdLast7Days: number;
    totalCostUsdLast30Days: number;
    totalSessions: number;
    totalProjects: number;
    totalAssistantTurns: number;
    totalInputTokens: number;
    totalOutputTokens: number;
    totalCacheReadTokens: number;
    totalCacheCreate5mTokens: number;
    totalCacheCreate1hTokens: number;
    totalApiErrors: number;
    totalApiRetries: number;
    potentialSavingsUsd: number;
}
export interface DailySpendBucket {
    date: string;
    totalCostUsd: number;
    sessionCount: number;
    totalInputTokens: number;
    totalOutputTokens: number;
}
export interface Snapshot {
    meta: SnapshotMeta;
    totals: SnapshotTotals;
    sessions: SnapshotSession[];
    projects: SnapshotProject[];
    tools: SnapshotToolGlobal[];
    insights: Insight[];
    dailySpend: DailySpendBucket[];
}
export declare function buildSnapshot(allStats: SessionStats[], meta: {
    burndVersion: string;
    filesScanned: number;
    recordsParsed: number;
    recordsSkipped: number;
}): Snapshot;
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