import type { ClientOptions as InngestClientOptions } from './inngest/client';
import type { CompletionConsumedInput, ParsingConsumedInput, WorkflowConsumedInput } from './schemas/events';
import type { Origin } from './schemas/origin';
import type { TriggerClientOptions } from './trigger/client';
import { INNGEST_EVENT_KEY_ENV, INNGEST_SIGNING_KEY_ENV } from './inngest/client';
import { METERING_TRIGGER_SECRET_KEY_ENV } from './trigger/client';
export type MeteringTransport = 'inngest' | 'trigger';
/**
 * Configuration for the metering client.
 *
 * Inngest remains the default transport. When `transport` is omitted, the
 * client only selects Trigger.dev automatically if Trigger.dev is the only
 * configured transport. If both Inngest and Trigger.dev credentials are
 * available, Inngest wins to keep the migration safe.
 *
 * The client reads environment variables if explicit values are not provided:
 *
 * - `eventKey` falls back to `INNGEST_EVENT_KEY`
 * - `signingKey` falls back to `INNGEST_SIGNING_KEY` when Inngest is used
 * - `triggerSecretKey` falls back to `METERING_TRIGGER_SECRET_KEY`
 *
 * The client intentionally does not read the generic `TRIGGER_SECRET_KEY`
 * variable, so host projects that already use Trigger.dev do not accidentally
 * send metering events to the wrong project.
 */
export type ClientOptions = InngestClientOptions & TriggerClientOptions & {
    transport?: MeteringTransport;
};
export type MeteringOptions = {
    inngestEnvironment?: string;
};
/**
 * Creates a metering client for the given origin.
 *
 * By default events are sent through Inngest. When `transport` is omitted, the
 * client also prefers Inngest if both Inngest and Trigger.dev credentials are
 * present. To send through Trigger.dev explicitly, use `transport: 'trigger'`
 * and either pass `triggerSecretKey` or set `METERING_TRIGGER_SECRET_KEY`.
 *
 * @example
 * ```ts
 * const metering = useMetering('tela-api', {
 *   transport: 'trigger',
 *   triggerSecretKey: env.METERING_TRIGGER_SECRET_KEY,
 * })
 * ```
 */
export declare function useMetering(origin: Origin, options?: ClientOptions): {
    sendParsingConsumedEvent: (data: ParsingConsumedInput) => Promise<unknown>;
    sendCompletionConsumedEvent: (data: CompletionConsumedInput) => Promise<unknown>;
    sendWorkflowConsumedEvent: (data: WorkflowConsumedInput) => Promise<unknown>;
};
export * from './schemas/action';
export { INNGEST_EVENT_KEY_ENV, INNGEST_SIGNING_KEY_ENV, METERING_TRIGGER_SECRET_KEY_ENV, };