196 lines
6.3 KiB
TypeScript
196 lines
6.3 KiB
TypeScript
import router from 'next/router'
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import { useEffect, useState } from 'react'
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import { CreatorContractsList } from '../components/contracts-list'
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import { Spacer } from '../components/layout/spacer'
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import { Title } from '../components/title'
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import { useUser } from '../hooks/use-user'
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import { path } from '../lib/firebase/contracts'
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import { createContract } from '../lib/service/create-contract'
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import { Page } from '../components/page'
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import clsx from 'clsx'
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import dayjs from 'dayjs'
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// Allow user to create a new contract
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export default function NewContract() {
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const creator = useUser()
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useEffect(() => {
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if (creator === null) router.push('/')
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})
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const [initialProb, setInitialProb] = useState(50)
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const [question, setQuestion] = useState('')
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const [description, setDescription] = useState('')
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const [closeDate, setCloseDate] = useState('')
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const [isSubmitting, setIsSubmitting] = useState(false)
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const [collapsed, setCollapsed] = useState(true)
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// Given a date string like '2022-04-02',
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// return the time just before midnight on that date (in the user's local time), as millis since epoch
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function dateToMillis(date: string) {
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return dayjs(date)
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.set('hour', 23)
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.set('minute', 59)
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.set('second', 59)
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.valueOf()
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}
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const closeTime = dateToMillis(closeDate)
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// We'd like this to look like "Apr 2, 2022, 23:59:59 PM PT" but timezones are hard with dayjs
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const formattedCloseTime = new Date(closeTime).toString()
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const isValid =
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initialProb > 0 &&
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initialProb < 100 &&
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question.length > 0 &&
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// If set, closeTime must be in the future
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(!closeDate || closeTime > Date.now())
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async function submit() {
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// TODO: Tell users why their contract is invalid
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if (!creator || !isValid) return
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setIsSubmitting(true)
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const contract = await createContract(
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question,
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description,
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initialProb,
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creator,
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closeTime
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)
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await router.push(path(contract))
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}
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const descriptionPlaceholder = `e.g. This market will resolve to “Yes” if, by June 2, 2021, 11:59:59 PM ET, Paxlovid (also known under PF-07321332)...`
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if (!creator) return <></>
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return (
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<Page>
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<Title text="Create a new prediction market" />
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<div className="w-full bg-white rounded-lg shadow-md px-6 py-4">
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{/* Create a Tailwind form that takes in all the fields needed for a new contract */}
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{/* When the form is submitted, create a new contract in the database */}
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<form>
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<div className="form-control w-full">
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<label className="label">
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<span className="label-text">Prediction</span>
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</label>
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<input
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type="text"
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placeholder="e.g. The FDA will approve Paxlovid before Jun 2nd, 2022"
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className="input input-bordered"
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value={question}
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onChange={(e) => setQuestion(e.target.value || '')}
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/>
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</div>
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<Spacer h={4} />
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<div className="form-control">
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<label className="label">
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<span className="label-text">Initial probability</span>
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</label>
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<label className="input-group input-group-md w-fit">
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<input
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type="number"
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value={initialProb}
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className="input input-bordered input-md"
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min={1}
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max={99}
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onChange={(e) => setInitialProb(parseInt(e.target.value))}
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/>
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<span>%</span>
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</label>
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</div>
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<Spacer h={4} />
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<div className="form-control">
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<label className="label">
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<span className="label-text">Description (optional)</span>
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</label>
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<textarea
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className="textarea w-full h-24 textarea-bordered"
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placeholder={descriptionPlaceholder}
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value={description}
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onClick={(e) => e.stopPropagation()}
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onChange={(e) => setDescription(e.target.value || '')}
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/>
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</div>
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{/* Collapsible "Advanced" section */}
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<div
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tabIndex={0}
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className={clsx(
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'cursor-pointer relative collapse collapse-arrow',
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collapsed ? 'collapse-close' : 'collapse-open'
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)}
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>
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<div onClick={() => setCollapsed((collapsed) => !collapsed)}>
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<div className="mt-4 mr-6 text-sm text-gray-400 text-right">
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Advanced
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</div>
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<div
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className="collapse-title p-0 absolute w-0 h-0 min-h-0"
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style={{
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top: -2,
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right: -15,
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color: '#9ca3af' /* gray-400 */,
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}}
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/>
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</div>
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<div className="collapse-content !p-0 m-0 !bg-transparent">
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<div className="form-control">
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<label className="label">
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<span className="label-text">Close date (optional)</span>
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</label>
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<input
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type="date"
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className="input input-bordered"
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onClick={(e) => e.stopPropagation()}
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onChange={(e) => setCloseDate(e.target.value || '')}
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min={new Date().toISOString().split('T')[0]}
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value={closeDate}
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/>
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</div>
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<label>
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{closeDate && (
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<span className="label-text text-gray-400 ml-1">
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No new trades will be allowed after {formattedCloseTime}
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</span>
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)}
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</label>
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</div>
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</div>
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<Spacer h={4} />
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<div className="flex justify-end my-4">
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<button
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type="submit"
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className="btn btn-primary"
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disabled={isSubmitting || !isValid}
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onClick={(e) => {
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e.preventDefault()
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submit()
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}}
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>
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Create market
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</button>
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</div>
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</form>
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</div>
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<Spacer h={10} />
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<Title text="Your markets" />
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{creator && <CreatorContractsList creator={creator} />}
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</Page>
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)
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}
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