110 lines
2.8 KiB
TypeScript
110 lines
2.8 KiB
TypeScript
import {
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CLASSIFIED,
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COMMENT,
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DELETE,
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DIRECT_MESSAGE,
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DIRECT_MESSAGE_FILE,
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EVENT_TIME,
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GENERIC_REPOST,
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PINBOARD,
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LONG_FORM,
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POLL,
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REACTION,
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REPORT,
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REPOST,
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THREAD,
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ZAP_GOAL,
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ZAP_RECEIPT,
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matchTags,
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tagSpec,
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tagValue,
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} from "@welshman/util"
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import type {Filter, TrustedEvent} from "@welshman/util"
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import {ENABLE_ZAPS} from "@app/env"
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export const IMAGE_CONTENT_TYPES = ["image/jpeg", "image/png", "image/gif", "image/webp"]
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export const VIDEO_CONTENT_TYPES = ["video/quicktime", "video/webm", "video/mp4"]
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export const AUDIO_CONTENT_TYPES = [
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"audio/mpeg",
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"audio/mp4",
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"audio/wav",
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"audio/x-wav",
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"audio/ogg",
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"audio/webm",
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"audio/flac",
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]
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export const getUrlTags = (url: string, event: TrustedEvent) => {
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// An imeta tag packs its own tags into space-separated values, so unpack them.
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const imetas = matchTags(tagSpec("imeta"), event.tags).map(([, ...values]: string[]) =>
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values.map(value => value.split(" ")),
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)
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const imeta = imetas.find(meta => tagValue(tagSpec("url"), meta) === url)
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if (imeta) {
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return imeta
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}
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// A nip 17 file message describes its one file on the event itself, but an event carrying imeta
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// has said all it has to say about each url, so any other link in it is described by nothing.
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return imetas.length > 0 ? [] : event.tags
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}
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export const getUrlContentType = (url: string, event: TrustedEvent) => {
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const tags = getUrlTags(url, event)
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return tagValue(tagSpec("m"), tags) || tagValue(tagSpec("file-type"), tags) || ""
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}
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export const makeCommentFilter = (kinds: number[], extra: Filter = {}) => ({
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kinds: [COMMENT],
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"#K": kinds.map(String),
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...extra,
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})
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export const makeDeleteFilter = (kinds: number[], extra: Filter = {}) => ({
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kinds: [DELETE],
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"#k": kinds.map(String),
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...extra,
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})
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export const REPOST_KINDS = [REPOST, GENERIC_REPOST]
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export const EVENT_CONTEXT_KINDS = [REPORT, REACTION, ZAP_RECEIPT, COMMENT]
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export const REACTION_KINDS = [REPORT, DELETE, REACTION]
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if (ENABLE_ZAPS) {
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REACTION_KINDS.push(ZAP_RECEIPT)
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}
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export const CONTENT_KINDS = [ZAP_GOAL, EVENT_TIME, THREAD, CLASSIFIED, POLL, PINBOARD, LONG_FORM]
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const CONTENT_NOUNS = new Map([
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[ZAP_GOAL, ["goal", "goals"]],
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[EVENT_TIME, ["event", "events"]],
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[THREAD, ["thread", "threads"]],
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[CLASSIFIED, ["classified", "classifieds"]],
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[POLL, ["poll", "polls"]],
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[PINBOARD, ["pinboard", "pinboards"]],
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[LONG_FORM, ["article", "articles"]],
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])
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export const displayContentCount = (kind: number, count: number) => {
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const [singular, plural] = CONTENT_NOUNS.get(kind) ?? ["item", "items"]
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return `${count} ${count === 1 ? singular : plural}`
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}
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export const DM_KINDS = [DIRECT_MESSAGE, DIRECT_MESSAGE_FILE]
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export const displayReaction = (content: string) => {
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if (!content || content === "+") {
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return "❤️"
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}
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if (content === "-") {
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return "👎"
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}
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return content
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}
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