signalk-server/dist/n2k-discovery-instances.d.ts

An implementation of a [Signal K](http://signalk.org) server for boats.

/**
 * Walk the self-vessel Signal K tree and derive, for each PGN known to
 * carry a `instance` primary key, which `(sourceRef, instance)` tuples
 * are *currently* present.
 *
 * This replaces an earlier passive listener that accumulated every
 * instance value ever seen on the wire. That set never forgot, so a
 * value like `instance: 0` emitted briefly during a device's startup
 * Address Claim — before the user-configured instance took effect —
 * haunted conflict detection forever.
 *
 * The SK tree is the authoritative current state: a leaf at
 * `electrical.batteries.<n>.voltage` only exists while a device is
 * actively publishing instance `<n>`. Reading instances from there
 * matches what users see in the data browser and the per-PGN editors,
 * and there is nothing to decay.
 *
 * Path conventions per PGN follow the @signalk/n2k-signalk mapping
 * package. Most are `<prefix>.<instance>.<...>`; PGN 130312/130316
 * (temperature/humidity) carry an additional `source` enum that splits
 * the path as `<prefix>.<source>.<instance>.<...>`. We treat that as
 * the compound key the conflict detector already understands.
 */
/**
 * Build sourceRef → pgn → list of currently-published instance numbers.
 * Used by the admin UI conflict detector. The shape mirrors the legacy
 * passive map so the client is unchanged.
 */
export declare function buildPgnDataInstancesFromTree(selfTree: any): Record<string, Record<string, number[]>>;
/**
 * Build sourceRef → pgn → list of compound keys for temperature/humidity
 * PGNs whose unique key includes the source-type enum.
 *
 * The n2k-signalk mapping for PGN 130312/130316 routes each source-type
 * (Outside, Inside, Main Cabin, Freezer, …) to a different SK path,
 * usually flat — `environment.outside.temperature`,
 * `environment.inside.mainCabin.temperature`, etc. The numeric instance
 * is generally not part of the path either (only Live/Bait Well and
 * Exhaust Gas use pathWithIndex). Two devices "share" a 130312 stream
 * only when they publish the same SK leaf path; the path already
 * encodes the (instance, source-type) tuple uniquely. Use the relative
 * SK path as the compound key.
 */
export declare function buildPgnSourceKeysFromTree(selfTree: any): Record<string, Record<string, string[]>>;
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