/**
 * Station/sensor matcher normalization — the ONE implementation the
 * runtime (stationFilter, excludeSensors, includeOnly) and the
 * editor's save pipeline share, so a station the runtime would filter
 * is filtered identically when the preview computes consequences
 * (PR #60 review F1). Extracted from platform.ts at beta.17;
 * platform.ts re-exports for compatibility.
 */
import type { StationInventory } from './types.js';
/**
 * Normalize a config-supplied string for matching against sensor
 * identifiers. Trims whitespace and lowercases. Empty / non-string
 * values normalize to the empty string, which the caller is expected
 * to filter out.
 */
export declare function normalizeMatchKey(s: unknown): string;
/**
 * Build a Set of normalized matchers from a config-supplied array.
 * Used for `stationFilter`, `excludeSensors`, and `includeOnly`; the
 * same matching rules apply to all (case-insensitive,
 * whitespace-trimmed, non-string and blank entries dropped).
 */
export declare function toMatcherSet(raw: unknown): Set<string>;
/**
 * Names are recorded per field. A partial observation after a rename must
 * outrank older siblings, not whichever entry happens to be iterated last.
 * Equal-time conflicting names are indeterminate, never a guessed filter
 * exclusion. Equivalent spellings use a deterministic lexical tie-break.
 */
export declare function latestDiscoveryStationNames(entries: ReadonlyArray<{
    stationMac: string;
    stationName: string;
    lastSeen: string;
}>): Map<string, string>;
/**
 * Apply a stationFilter to a station INVENTORY with the runtime's
 * matching rules (station name OR MAC, case-insensitive,
 * whitespace-trimmed). An empty or absent filter passes everything —
 * exactly applyStationFilterV2's semantics, minus the logging.
 */
export declare function filterStationInventory(inventory: StationInventory, stationFilter: unknown): StationInventory;
/**
 * Stations whose membership under `stationFilter` is INDETERMINATE at
 * editor time (PR #60 round 3 P1): the filter carries name-form
 * entries, and the station's name is unknown in the assembled
 * inventory (cached-accessory or override-derived stations carry no
 * name) — the runtime will evaluate the same filter AFTER fetching,
 * with the real name. Interpreting the unknown name as a non-match
 * could hide structural consequences from the preview, so callers
 * refuse instead. A station a MAC-form entry matches is determinate
 * (included) regardless of its name; a filter with only MAC-form
 * entries is always determinate.
 */
export declare function indeterminateFilterStations(inventory: StationInventory, stationFilter: unknown): StationInventory;
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