116 lines
3.0 KiB
TypeScript
116 lines
3.0 KiB
TypeScript
import { ReactNode } from 'react'
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import Head from 'next/head'
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import { Challenge } from 'common/challenge'
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export type OgCardProps = {
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question: string
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probability?: string
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metadata: string
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creatorName: string
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creatorUsername: string
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creatorAvatarUrl?: string
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numericValue?: string
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}
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function buildCardUrl(props: OgCardProps, challenge?: Challenge) {
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const {
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creatorAmount,
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acceptances,
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acceptorAmount,
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creatorOutcome,
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acceptorOutcome,
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} = challenge || {}
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const { userName, userAvatarUrl } = acceptances?.[0] ?? {}
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const probabilityParam =
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props.probability === undefined
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? ''
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: `&probability=${encodeURIComponent(props.probability ?? '')}`
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const numericValueParam =
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props.numericValue === undefined
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? ''
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: `&numericValue=${encodeURIComponent(props.numericValue ?? '')}`
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const creatorAvatarUrlParam =
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props.creatorAvatarUrl === undefined
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? ''
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: `&creatorAvatarUrl=${encodeURIComponent(props.creatorAvatarUrl ?? '')}`
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const challengeUrlParams = challenge
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? `&creatorAmount=${creatorAmount}&creatorOutcome=${creatorOutcome}` +
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`&challengerAmount=${acceptorAmount}&challengerOutcome=${acceptorOutcome}` +
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`&acceptedName=${userName ?? ''}&acceptedAvatarUrl=${userAvatarUrl ?? ''}`
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: ''
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// URL encode each of the props, then add them as query params
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return (
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`https://manifold-og-image.vercel.app/m.png` +
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`?question=${encodeURIComponent(props.question)}` +
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probabilityParam +
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numericValueParam +
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`&metadata=${encodeURIComponent(props.metadata)}` +
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`&creatorName=${encodeURIComponent(props.creatorName)}` +
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creatorAvatarUrlParam +
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`&creatorUsername=${encodeURIComponent(props.creatorUsername)}` +
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challengeUrlParams
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)
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}
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export function SEO(props: {
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title: string
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description: string
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url?: string
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children?: ReactNode
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ogCardProps?: OgCardProps
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challenge?: Challenge
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}) {
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const { title, description, url, children, ogCardProps, challenge } = props
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return (
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<Head>
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<title>{title} | Manifold Markets</title>
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<meta
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property="og:title"
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name="twitter:title"
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content={title}
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key="title"
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/>
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<meta name="description" content={description} key="description1" />
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<meta
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property="og:description"
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name="twitter:description"
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content={description}
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key="description2"
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/>
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{url && (
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<meta
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property="og:url"
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content={'https://manifold.markets' + url}
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key="url"
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/>
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)}
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{ogCardProps && (
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<>
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<meta
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property="og:image"
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content={buildCardUrl(ogCardProps, challenge)}
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key="image1"
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/>
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<meta name="twitter:card" content="summary_large_image" key="card" />
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<meta
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name="twitter:image"
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content={buildCardUrl(ogCardProps, challenge)}
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key="image2"
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/>
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</>
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)}
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{children}
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</Head>
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)
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}
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