export declare const USAGE_ALERT_DEFAULT_DAILY_USD = 100;
export declare const USAGE_ALERT_UNIT_SCALE: {
    readonly usd: 100;
    readonly "builder-credits": 1;
    readonly tokens: 1;
};
export type UsageAlertScope = "user" | "workspace";
export type UsageAlertUnit = "usd" | "builder-credits" | "tokens";
export type UsageAlertPeriod = "day" | "month";
export type UsageAlertChannel = "in-app" | "email";
export type UsageAlertStatus = "ok" | "triggered" | "dismissed";
export interface UsageAlertAccess {
    ownerEmail: string;
    orgId?: string | null;
}
export interface UsageAlertRule {
    id: string;
    appId: string | null;
    scope: UsageAlertScope;
    unit: UsageAlertUnit;
    period: UsageAlertPeriod;
    limit: number;
    channels: UsageAlertChannel[];
    enabled: boolean;
    isDefault: boolean;
    status: UsageAlertStatus;
    current: number;
    percent: number;
    windowStart: number;
    windowEnd: number;
    dismissedAt: number | null;
    updatedAt: number;
}
export interface UsageAlertEventSummary {
    status: UsageAlertStatus;
    current: number;
    limit: number;
    percent: number;
    windowStart: number;
    windowEnd: number;
}
export interface UsageAlertListOptions {
    scope?: UsageAlertScope;
    appId?: string | null;
}
export interface SaveUsageAlertInput {
    scope: UsageAlertScope;
    ruleId?: string;
    appId?: string | null;
    unit?: UsageAlertUnit;
    period?: UsageAlertPeriod;
    limit?: number;
    channels?: UsageAlertChannel[];
    enabled?: boolean;
}
export interface UsageAlertMutationResult {
    rule: UsageAlertRule;
    rules: UsageAlertRule[];
    current: UsageAlertEventSummary | null;
}
export declare const usageAlertsStore: import("../db/store-registry.js").Store;
export declare function ensureTables(): Promise<void>;
export declare function listUsageAlerts(input: UsageAlertListOptions, access: UsageAlertAccess): Promise<UsageAlertRule[]>;
export declare function saveUsageAlert(input: SaveUsageAlertInput, access: UsageAlertAccess): Promise<UsageAlertMutationResult>;
export declare function setUsageAlertEnabled(ruleId: string, scope: UsageAlertScope, enabled: boolean, access: UsageAlertAccess): Promise<UsageAlertMutationResult>;
export declare function dismissUsageAlert(ruleId: string, scope: UsageAlertScope, access: UsageAlertAccess): Promise<UsageAlertMutationResult>;
interface UsageAlertEvaluationRecord {
    ownerEmail: string;
    app?: string;
    orgId?: string | null;
    inputTokens: number;
    outputTokens: number;
    cacheReadTokens?: number;
    cacheWriteTokens?: number;
    costCentsX100?: number;
}
export declare function enqueueUsageAlertEvaluation(record: UsageAlertEvaluationRecord): void;
export declare function _resetUsageAlertStoreForTests(): void;
export declare function _waitForUsageAlertEvaluationsForTests(): Promise<void>;
export {};