import { SmrtCollection } from '@happyvertical/smrt-core';
import { TenantUsageMetric } from '../models/TenantUsageMetric.js';
import { AiUsageSummary, RecordUsageOptions, SummarizeAiUsageOptions, SummarizeUsageBatchOptions, SummarizeUsageOptions, UsageSummary } from '../types.js';
export declare class TenantUsageMetricCollection extends SmrtCollection<TenantUsageMetric> {
    static readonly _itemClass: typeof TenantUsageMetric;
    recordUsage(options: RecordUsageOptions): Promise<TenantUsageMetric>;
    /**
     * Legacy accessor — finds metrics for `subscriberKind = 'tenant'` under the
     * given tenant. External-kind rows scoped to the same tenant are excluded.
     */
    findByTenantAndMetric(tenantId: string, metricKey: string): Promise<TenantUsageMetric[]>;
    summarizeUsage(options: SummarizeUsageOptions): Promise<UsageSummary>;
    summarizeUsageBatch(options: SummarizeUsageBatchOptions): Promise<UsageSummary[]>;
    /**
     * Summarize persisted AI usage for a tenant within a window.
     *
     * Reads the framework `_smrt_ai_usage` system table via a raw aggregate
     * query. This deliberately uses `this.db.query` rather than the inherited
     * `query()`: those rows are framework usage records, not `TenantUsageMetric`
     * instances, so model hydration would discard the aggregate columns. Tenant
     * scoping is applied explicitly through the `tenant_id` filter.
     *
     * Named distinctly from the inherited `SmrtClass.summarizeAiUsage` (which
     * returns grouped stats across all tenants) to avoid overriding it.
     */
    summarizeTenantAiUsage(options: SummarizeAiUsageOptions): Promise<AiUsageSummary>;
}
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