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96 lines
2.5 KiB
96 lines
2.5 KiB
import { VALIDATION } from "./search_constants"; |
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/** |
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* Nostr identifier types |
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*/ |
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export type NostrEventId = string; // 64-character hex string |
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export type NostrCoordinate = string; // kind:pubkey:d-tag format |
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export type NostrIdentifier = NostrEventId | NostrCoordinate; |
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/** |
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* Interface for parsed Nostr coordinate |
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*/ |
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export interface ParsedCoordinate { |
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kind: number; |
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pubkey: string; |
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dTag: string; |
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} |
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/** |
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* Check if a string is a valid hex event ID |
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* @param id The string to check |
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* @returns True if it's a valid hex event ID |
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*/ |
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export function isEventId(id: string): id is NostrEventId { |
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return new RegExp(`^[a-f0-9]{${VALIDATION.HEX_LENGTH}}$`, "i").test(id); |
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} |
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/** |
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* Check if a string is a valid Nostr coordinate (kind:pubkey:d-tag) |
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* @param coordinate The string to check |
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* @returns True if it's a valid coordinate |
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*/ |
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export function isCoordinate( |
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coordinate: string, |
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): coordinate is NostrCoordinate { |
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const parts = coordinate.split(":"); |
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if (parts.length < 3) return false; |
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const [kindStr, pubkey, ...dTagParts] = parts; |
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// Check if kind is a valid number |
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const kind = parseInt(kindStr, 10); |
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if (isNaN(kind) || kind < 0) return false; |
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// Check if pubkey is a valid hex string |
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if (!isEventId(pubkey)) return false; |
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// Check if d-tag exists (can contain colons) |
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if (dTagParts.length === 0) return false; |
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return true; |
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} |
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/** |
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* Parse a Nostr coordinate into its components |
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* @param coordinate The coordinate string to parse |
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* @returns Parsed coordinate or null if invalid |
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*/ |
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export function parseCoordinate(coordinate: string): ParsedCoordinate | null { |
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if (!isCoordinate(coordinate)) return null; |
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const parts = coordinate.split(":"); |
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const [kindStr, pubkey, ...dTagParts] = parts; |
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return { |
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kind: parseInt(kindStr, 10), |
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pubkey, |
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dTag: dTagParts.join(":"), // Rejoin in case d-tag contains colons |
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}; |
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} |
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/** |
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* Create a coordinate string from components |
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* @param kind The event kind |
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* @param pubkey The author's public key |
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* @param dTag The d-tag value |
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* @returns The coordinate string |
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*/ |
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export function createCoordinate( |
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kind: number, |
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pubkey: string, |
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dTag: string, |
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): NostrCoordinate { |
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return `${kind}:${pubkey}:${dTag}`; |
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} |
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/** |
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* Check if a string is any valid Nostr identifier |
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* @param identifier The string to check |
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* @returns True if it's a valid Nostr identifier |
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*/ |
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export function isNostrIdentifier( |
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identifier: string, |
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): identifier is NostrIdentifier { |
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return isEventId(identifier) || isCoordinate(identifier); |
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}
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