45 lines
1.7 KiB
TypeScript
45 lines
1.7 KiB
TypeScript
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import { Event } from 'nostr-tools'
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import { getTagValue } from './nostr'
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import { ModDetails } from '../types'
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/**
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* Extracts and normalizes mod data from an event.
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*
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* This function extracts specific tag values from an event and maps them to properties
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* of a `PageData` object. It handles default values and type conversions as needed.
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*
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* @param event - The event object from which to extract data.
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* @returns A `Partial<PageData>` object containing extracted data.
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*/
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export const extractModData = (event: Event): ModDetails => {
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// Helper function to safely get the first value of a tag or return a default value
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const getFirstTagValue = (tagIdentifier: string, defaultValue = '') => {
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const tagValue = getTagValue(event, tagIdentifier)
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return tagValue ? tagValue[0] : defaultValue
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}
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// Helper function to safely parse integer values from tags
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const getIntTagValue = (tagIdentifier: string, defaultValue: number = -1) => {
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const tagValue = getTagValue(event, tagIdentifier)
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return tagValue ? parseInt(tagValue[0], 10) : defaultValue
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}
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return {
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author: event.pubkey,
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edited_at: event.created_at,
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body: event.content,
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site: getFirstTagValue('t'),
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published_at: getIntTagValue('published_at'),
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game: getFirstTagValue('game'),
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title: getFirstTagValue('title'),
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featuredImageUrl: getFirstTagValue('featuredImageUrl'),
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summary: getFirstTagValue('summary'),
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nsfw: Boolean(getFirstTagValue('nsfw')),
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screenshotsUrls: getTagValue(event, 'screenshotsUrls') || [],
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tags: getTagValue(event, 'tags') || [],
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downloadUrls: (getTagValue(event, 'downloadUrls') || []).map((item) =>
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JSON.parse(item)
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)
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}
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}
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