import * as planetscale from "@distilled.cloud/planetscale";
import * as Effect from "effect/Effect";
/**
 * Available PlanetScale PostgreSQL cluster sizes.
 *
 * `PS_*` sizes are backed by network-attached storage (NAS) and can be
 * specified either as the short size (`"PS_10"`) or the API SKU
 * (`"PS_10_AWS_X86"`). Short NAS sizes are expanded to a SKU by
 * {@link toPostgresClusterSku} using the target region and arch.
 *
 * @see https://planetscale.com/docs/postgres/pricing
 */
export type PostgresClusterSize = "PS_DEV" | "PS_5" | "PS_10" | "PS_20" | "PS_40" | "PS_80" | "PS_160" | "PS_320" | "PS_640" | "PS_1280" | "PS_2560" | (string & {});
/**
 * Converts a {@link PostgresClusterSize} into the SKU string expected by
 * the PlanetScale API.
 *
 * For NAS-backed clusters, the API expects a suffixed name like
 * `PS_<size>_<provider>_<arch>`. Short `PS_*` sizes are expanded using the
 * supplied region and arch.
 *
 * Metal-backed sizes (anything starting with `M`) are passed through
 * unchanged. The short `M_*` form is not a valid SKU on its own — the API
 * requires the full Metal SKU (e.g. `M6_640_AWS_INTEL_D_METAL_474`), which
 * encodes the CPU series, provider, arch, and storage size
 *
 * Already-suffixed NAS sizes are also passed through unchanged.
 */
export declare function toPostgresClusterSku(input: {
    size: PostgresClusterSize;
    arch?: "x86" | "arm";
    region?: string;
}): string;
/**
 * Polls branch change requests until all visible changes are in a terminal
 * state (`completed` or `canceled`), or — if `changeId` is provided — until
 * that specific change reaches a terminal state.
 */
export declare const waitForPendingPostgresChanges: (organization: string, database: string, branch: string, changeId?: string | undefined) => Effect.Effect<void, planetscale.ListBranchChangeRequestsError, planetscale.PlanetScaleOpContext>;
/**
 * Ensures a PostgreSQL production branch has the expected cluster size,
 * queuing the change via the change-request API if it doesn't.
 */
export declare const ensurePostgresProductionBranchClusterSize: (organization: string, database: string, branch: string, expectedClusterSize: PostgresClusterSize) => Effect.Effect<void, import("../Util.ts").NotReady | planetscale.ListBranchChangeRequestsError, planetscale.PlanetScaleOpContext>;
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