manifold/functions/src/create-post.ts
2022-09-27 19:10:35 -04:00

131 lines
3.4 KiB
TypeScript

import * as admin from 'firebase-admin'
import { getUser } from './utils'
import { slugify } from '../../common/util/slugify'
import { randomString } from '../../common/util/random'
import { Post, MAX_POST_TITLE_LENGTH } from '../../common/post'
import { APIError, newEndpoint, validate } from './api'
import { JSONContent } from '@tiptap/core'
import { z } from 'zod'
import { removeUndefinedProps } from '../../common/util/object'
import { createMarketHelper } from './create-market'
import { DAY_MS } from '../../common/util/time'
const contentSchema: z.ZodType<JSONContent> = z.lazy(() =>
z.intersection(
z.record(z.any()),
z.object({
type: z.string().optional(),
attrs: z.record(z.any()).optional(),
content: z.array(contentSchema).optional(),
marks: z
.array(
z.intersection(
z.record(z.any()),
z.object({
type: z.string(),
attrs: z.record(z.any()).optional(),
})
)
)
.optional(),
text: z.string().optional(),
})
)
)
const postSchema = z.object({
title: z.string().min(1).max(MAX_POST_TITLE_LENGTH),
content: contentSchema,
groupId: z.string().optional(),
// Date doc fields:
bounty: z.number().optional(),
birthday: z.number().optional(),
type: z.string().optional(),
question: z.string().optional(),
})
export const createpost = newEndpoint({}, async (req, auth) => {
const firestore = admin.firestore()
const { title, content, groupId, question, ...otherProps } = validate(
postSchema,
req.body
)
const creator = await getUser(auth.uid)
if (!creator)
throw new APIError(400, 'No user exists with the authenticated user ID.')
console.log('creating post owned by', creator.username, 'titled', title)
const slug = await getSlug(title)
const postRef = firestore.collection('posts').doc()
// If this is a date doc, create a market for it.
let contractSlug
if (question) {
const closeTime = Date.now() + DAY_MS * 30 * 3
const result = await createMarketHelper(
{
question,
closeTime,
outcomeType: 'BINARY',
visibility: 'unlisted',
initialProb: 50,
// Dating group!
groupId: 'j3ZE8fkeqiKmRGumy3O1',
},
auth
)
contractSlug = result.slug
}
const post: Post = removeUndefinedProps({
...otherProps,
id: postRef.id,
creatorId: creator.id,
slug,
title,
createdTime: Date.now(),
content: content,
contractSlug,
})
await postRef.create(post)
if (groupId) {
const groupRef = firestore.collection('groups').doc(groupId)
const group = await groupRef.get()
if (group.exists) {
const groupData = group.data()
if (groupData) {
const postIds = groupData.postIds ?? []
postIds.push(postRef.id)
await groupRef.update({ postIds })
}
}
}
return { status: 'success', post }
})
export const getSlug = async (title: string) => {
const proposedSlug = slugify(title)
const preexistingPost = await getPostFromSlug(proposedSlug)
return preexistingPost ? proposedSlug + '-' + randomString() : proposedSlug
}
export async function getPostFromSlug(slug: string) {
const firestore = admin.firestore()
const snap = await firestore
.collection('posts')
.where('slug', '==', slug)
.get()
return snap.empty ? undefined : (snap.docs[0].data() as Post)
}