37 lines
1.3 KiB
TypeScript
37 lines
1.3 KiB
TypeScript
import {ParsedType, parse, renderAsText, summarize} from "@welshman/content"
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import type {Parsed, SummaryName} from "@welshman/content"
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import type {TrustedEvent} from "@welshman/util"
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import {profiles} from "@app/core"
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const summaryName: SummaryName = parsed =>
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parsed.type === ParsedType.Profile ? profiles.get().display(parsed.value.pubkey).get() : undefined
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const renderSummary = (parsed: Parsed[]) =>
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renderAsText(summarize(parsed, summaryName)).toString().trim()
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export const renderEventAsText = (event: TrustedEvent) => renderSummary(parse(event))
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const splitLines = (parsed: Parsed[]) => {
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const lines: Parsed[][] = [[]]
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for (const node of parsed) {
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if (node.type === ParsedType.Newline) {
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lines.push([])
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} else {
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lines[lines.length - 1].push(node)
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}
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}
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return lines.filter(line => line.length > 0)
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}
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const hasProse = (line: Parsed[]) =>
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line.some(node => node.type === ParsedType.Text && node.value.trim().length > 0)
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// A reply prepends the message it answers, so the first line of one describes the quote and says
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// nothing about the reply. The first line carrying words of its own is what the message is about.
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export const renderEventAsSummary = (event: TrustedEvent) => {
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const lines = splitLines(parse(event))
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return renderSummary(lines.find(hasProse) || lines[0] || [])
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}
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