404 lines
12 KiB
JavaScript
404 lines
12 KiB
JavaScript
import { UserInputError, AuthenticationError } from 'apollo-server-micro'
|
|
import { ensureProtocol } from '../../lib/url'
|
|
import serialize from './serial'
|
|
import { decodeCursor, LIMIT, nextCursorEncoded } from './cursor'
|
|
|
|
async function comments (models, id) {
|
|
const flat = await models.$queryRaw(`
|
|
WITH RECURSIVE base AS (
|
|
${SELECT}, ARRAY[row_number() OVER (${ORDER_BY_SATS}, "Item".path)] AS sort_path
|
|
FROM "Item"
|
|
${LEFT_JOIN_SATS}
|
|
WHERE "parentId" = $1
|
|
UNION ALL
|
|
${SELECT}, p.sort_path || row_number() OVER (${ORDER_BY_SATS}, "Item".path)
|
|
FROM base p
|
|
JOIN "Item" ON ltree2text(subpath("Item"."path", 0, -1)) = p."path"
|
|
${LEFT_JOIN_SATS})
|
|
SELECT * FROM base ORDER BY sort_path`, Number(id))
|
|
return nestComments(flat, id)[0]
|
|
}
|
|
|
|
export default {
|
|
Query: {
|
|
moreItems: async (parent, { sort, cursor, userId }, { me, models }) => {
|
|
const decodedCursor = decodeCursor(cursor)
|
|
let items
|
|
switch (sort) {
|
|
case 'user':
|
|
items = await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE "userId" = $1 AND "parentId" IS NULL AND created_at <= $2
|
|
ORDER BY created_at DESC
|
|
OFFSET $3
|
|
LIMIT ${LIMIT}`, Number(userId), decodedCursor.time, decodedCursor.offset)
|
|
break
|
|
case 'hot':
|
|
items = await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
${timedLeftJoinSats(1)}
|
|
WHERE "parentId" IS NULL AND created_at <= $1
|
|
${timedOrderBySats(1)}
|
|
OFFSET $2
|
|
LIMIT ${LIMIT}`, decodedCursor.time, decodedCursor.offset)
|
|
break
|
|
default:
|
|
items = await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE "parentId" IS NULL AND created_at <= $1
|
|
ORDER BY created_at DESC
|
|
OFFSET $2
|
|
LIMIT ${LIMIT}`, decodedCursor.time, decodedCursor.offset)
|
|
break
|
|
}
|
|
return {
|
|
cursor: items.length === LIMIT ? nextCursorEncoded(decodedCursor) : null,
|
|
items
|
|
}
|
|
},
|
|
moreFlatComments: async (parent, { cursor, userId }, { me, models }) => {
|
|
const decodedCursor = decodeCursor(cursor)
|
|
|
|
if (!userId) {
|
|
throw new UserInputError('must supply userId', { argumentName: 'userId' })
|
|
}
|
|
|
|
const comments = await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE "userId" = $1 AND "parentId" IS NOT NULL
|
|
AND created_at <= $2
|
|
ORDER BY created_at DESC
|
|
OFFSET $3
|
|
LIMIT ${LIMIT}`, Number(userId), decodedCursor.time, decodedCursor.offset)
|
|
|
|
return {
|
|
cursor: comments.length === LIMIT ? nextCursorEncoded(decodedCursor) : null,
|
|
comments
|
|
}
|
|
},
|
|
item: async (parent, { id }, { models }) => {
|
|
const [item] = await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE id = $1`, Number(id))
|
|
if (item) {
|
|
item.comments = comments(models, id)
|
|
}
|
|
return item
|
|
},
|
|
userComments: async (parent, { userId }, { models }) => {
|
|
return await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE "userId" = $1 AND "parentId" IS NOT NULL
|
|
ORDER BY created_at DESC`, Number(userId))
|
|
}
|
|
},
|
|
|
|
Mutation: {
|
|
createLink: async (parent, { title, url }, { me, models }) => {
|
|
if (!title) {
|
|
throw new UserInputError('link must have title', { argumentName: 'title' })
|
|
}
|
|
|
|
if (!url) {
|
|
throw new UserInputError('link must have url', { argumentName: 'url' })
|
|
}
|
|
|
|
return await createItem(parent, { title, url: ensureProtocol(url) }, { me, models })
|
|
},
|
|
updateLink: async (parent, { id, title, url }, { me, models }) => {
|
|
if (!id) {
|
|
throw new UserInputError('link must have id', { argumentName: 'id' })
|
|
}
|
|
|
|
if (!title) {
|
|
throw new UserInputError('link must have title', { argumentName: 'title' })
|
|
}
|
|
|
|
if (!url) {
|
|
throw new UserInputError('link must have url', { argumentName: 'url' })
|
|
}
|
|
|
|
// update iff this item belongs to me
|
|
const item = await models.item.findUnique({ where: { id: Number(id) } })
|
|
if (Number(item.userId) !== Number(me.id)) {
|
|
throw new AuthenticationError('item does not belong to you')
|
|
}
|
|
|
|
if (Date.now() > new Date(item.createdAt).getTime() + 10 * 60000) {
|
|
throw new UserInputError('item can no longer be editted')
|
|
}
|
|
|
|
return await updateItem(parent, { id, data: { title, url: ensureProtocol(url) } }, { me, models })
|
|
},
|
|
createDiscussion: async (parent, { title, text }, { me, models }) => {
|
|
if (!title) {
|
|
throw new UserInputError('discussion must have title', { argumentName: 'title' })
|
|
}
|
|
|
|
return await createItem(parent, { title, text }, { me, models })
|
|
},
|
|
updateDiscussion: async (parent, { id, title, text }, { me, models }) => {
|
|
if (!id) {
|
|
throw new UserInputError('discussion must have id', { argumentName: 'id' })
|
|
}
|
|
|
|
if (!title) {
|
|
throw new UserInputError('discussion must have title', { argumentName: 'title' })
|
|
}
|
|
|
|
// update iff this item belongs to me
|
|
const item = await models.item.findUnique({ where: { id: Number(id) } })
|
|
if (Number(item.userId) !== Number(me.id)) {
|
|
throw new AuthenticationError('item does not belong to you')
|
|
}
|
|
|
|
if (Date.now() > new Date(item.createdAt).getTime() + 10 * 60000) {
|
|
throw new UserInputError('item can no longer be editted')
|
|
}
|
|
|
|
return await updateItem(parent, { id, data: { title, text } }, { me, models })
|
|
},
|
|
createComment: async (parent, { text, parentId }, { me, models }) => {
|
|
if (!text) {
|
|
throw new UserInputError('comment must have text', { argumentName: 'text' })
|
|
}
|
|
|
|
if (!parentId) {
|
|
throw new UserInputError('comment must have parent', { argumentName: 'parentId' })
|
|
}
|
|
|
|
return await createItem(parent, { text, parentId }, { me, models })
|
|
},
|
|
updateComment: async (parent, { id, text }, { me, models }) => {
|
|
if (!text) {
|
|
throw new UserInputError('comment must have text', { argumentName: 'text' })
|
|
}
|
|
|
|
if (!id) {
|
|
throw new UserInputError('comment must have id', { argumentName: 'id' })
|
|
}
|
|
|
|
// update iff this comment belongs to me
|
|
const comment = await models.item.findUnique({ where: { id: Number(id) } })
|
|
if (Number(comment.userId) !== Number(me.id)) {
|
|
throw new AuthenticationError('comment does not belong to you')
|
|
}
|
|
|
|
if (Date.now() > new Date(comment.createdAt).getTime() + 10 * 60000) {
|
|
throw new UserInputError('comment can no longer be editted')
|
|
}
|
|
|
|
return await updateItem(parent, { id, data: { text } }, { me, models })
|
|
},
|
|
vote: async (parent, { id, sats = 1 }, { me, models }) => {
|
|
// need to make sure we are logged in
|
|
if (!me) {
|
|
throw new AuthenticationError('you must be logged in')
|
|
}
|
|
|
|
if (sats <= 0) {
|
|
throw new UserInputError('sats must be positive', { argumentName: 'sats' })
|
|
}
|
|
|
|
await serialize(models, models.$queryRaw`SELECT vote(${Number(id)}, ${me.name}, ${Number(sats)})`)
|
|
return sats
|
|
}
|
|
},
|
|
|
|
Item: {
|
|
user: async (item, args, { models }) =>
|
|
await models.user.findUnique({ where: { id: item.userId } }),
|
|
ncomments: async (item, args, { models }) => {
|
|
const [{ count }] = await models.$queryRaw`
|
|
SELECT count(*)
|
|
FROM "Item"
|
|
WHERE path <@ text2ltree(${item.path}) AND id != ${item.id}`
|
|
return count || 0
|
|
},
|
|
sats: async (item, args, { models }) => {
|
|
const { sum: { sats } } = await models.vote.aggregate({
|
|
sum: {
|
|
sats: true
|
|
},
|
|
where: {
|
|
itemId: item.id,
|
|
boost: false
|
|
}
|
|
})
|
|
|
|
return sats || 0
|
|
},
|
|
boost: async (item, args, { models }) => {
|
|
const { sum: { sats } } = await models.vote.aggregate({
|
|
sum: {
|
|
sats: true
|
|
},
|
|
where: {
|
|
itemId: item.id,
|
|
boost: true
|
|
}
|
|
})
|
|
|
|
return sats || 0
|
|
},
|
|
meSats: async (item, args, { me, models }) => {
|
|
if (!me) return 0
|
|
|
|
const { sum: { sats } } = await models.vote.aggregate({
|
|
sum: {
|
|
sats: true
|
|
},
|
|
where: {
|
|
itemId: item.id,
|
|
userId: me.id
|
|
}
|
|
})
|
|
|
|
return sats || 0
|
|
},
|
|
root: async (item, args, { models }) => {
|
|
if (!item.parentId) {
|
|
return null
|
|
}
|
|
return (await models.$queryRaw(`
|
|
${SELECT}
|
|
FROM "Item"
|
|
WHERE id = (
|
|
SELECT ltree2text(subltree(path, 0, 1))::integer
|
|
FROM "Item"
|
|
WHERE id = $1)`, Number(item.id)))[0]
|
|
},
|
|
parent: async (item, args, { models }) => {
|
|
if (!item.parentId) {
|
|
return null
|
|
}
|
|
return await models.item.findUnique({ where: { id: item.parentId } })
|
|
}
|
|
}
|
|
}
|
|
|
|
const namePattern = /\B@[\w_]+/gi
|
|
|
|
const createMentions = async (item, models) => {
|
|
// if we miss a mention, in the rare circumstance there's some kind of
|
|
// failure, it's not a big deal so we don't do it transactionally
|
|
// ideally, we probably would
|
|
if (!item.text) {
|
|
return
|
|
}
|
|
|
|
try {
|
|
const mentions = item.text.match(namePattern)?.map(m => m.slice(1))
|
|
if (mentions?.length > 0) {
|
|
const users = await models.user.findMany({
|
|
where: {
|
|
name: { in: mentions }
|
|
}
|
|
})
|
|
|
|
users.forEach(async user => {
|
|
const data = {
|
|
itemId: item.id,
|
|
userId: user.id
|
|
}
|
|
|
|
await models.mention.upsert({
|
|
where: {
|
|
itemId_userId: data
|
|
},
|
|
update: data,
|
|
create: data
|
|
})
|
|
})
|
|
}
|
|
} catch (e) {
|
|
console.log('mention failure', e)
|
|
}
|
|
}
|
|
|
|
const updateItem = async (parent, { id, data }, { me, models }) => {
|
|
const item = await models.item.update({
|
|
where: { id: Number(id) },
|
|
data
|
|
})
|
|
|
|
await createMentions(item, models)
|
|
|
|
return item
|
|
}
|
|
|
|
const createItem = async (parent, { title, url, text, parentId }, { me, models }) => {
|
|
if (!me) {
|
|
throw new AuthenticationError('you must be logged in')
|
|
}
|
|
|
|
const [item] = await serialize(models, models.$queryRaw(
|
|
`${SELECT} FROM create_item($1, $2, $3, $4, $5) AS "Item"`,
|
|
title, url, text, Number(parentId), me.name))
|
|
|
|
await createMentions(item, models)
|
|
|
|
item.comments = []
|
|
return item
|
|
}
|
|
|
|
function nestComments (flat, parentId) {
|
|
const result = []
|
|
let added = 0
|
|
for (let i = 0; i < flat.length;) {
|
|
if (!flat[i].comments) flat[i].comments = []
|
|
if (Number(flat[i].parentId) === Number(parentId)) {
|
|
result.push(flat[i])
|
|
added++
|
|
i++
|
|
} else if (result.length > 0) {
|
|
const item = result[result.length - 1]
|
|
const [nested, newAdded] = nestComments(flat.slice(i), item.id)
|
|
if (newAdded === 0) {
|
|
break
|
|
}
|
|
item.comments.push(...nested)
|
|
i += newAdded
|
|
added += newAdded
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
return [result, added]
|
|
}
|
|
|
|
// we have to do our own query because ltree is unsupported
|
|
const SELECT =
|
|
`SELECT "Item".id, "Item".created_at as "createdAt", "Item".updated_at as "updatedAt", "Item".title,
|
|
"Item".text, "Item".url, "Item"."userId", "Item"."parentId", ltree2text("Item"."path") AS "path"`
|
|
|
|
const LEFT_JOIN_SATS_SELECT = 'SELECT i.id, SUM(CASE WHEN "Vote".boost THEN 0 ELSE "Vote".sats END) as sats, SUM(CASE WHEN "Vote".boost THEN "Vote".sats ELSE 0 END) as boost'
|
|
|
|
function timedLeftJoinSats (num) {
|
|
return `LEFT JOIN (${LEFT_JOIN_SATS_SELECT}
|
|
FROM "Item" i
|
|
JOIN "Vote" ON i.id = "Vote"."itemId" AND "Vote".created_at <= $${num}
|
|
GROUP BY i.id) x ON "Item".id = x.id`
|
|
}
|
|
|
|
const LEFT_JOIN_SATS =
|
|
`LEFT JOIN (${LEFT_JOIN_SATS_SELECT}
|
|
FROM "Item" i
|
|
JOIN "Vote" ON i.id = "Vote"."itemId"
|
|
GROUP BY i.id) x ON "Item".id = x.id`
|
|
|
|
function timedOrderBySats (num) {
|
|
return `ORDER BY ((x.sats-1)/POWER(EXTRACT(EPOCH FROM ($${num} - "Item".created_at))/3600+2, 1.5) +
|
|
(x.boost)/POWER(EXTRACT(EPOCH FROM ($${num} - "Item".created_at))/3600+2, 5)) DESC NULLS LAST`
|
|
}
|
|
|
|
const ORDER_BY_SATS =
|
|
`ORDER BY ((x.sats-1)/POWER(EXTRACT(EPOCH FROM ((NOW() AT TIME ZONE 'UTC') - "Item".created_at))/3600+2, 1.5) +
|
|
(x.boost)/POWER(EXTRACT(EPOCH FROM ((NOW() AT TIME ZONE 'UTC') - "Item".created_at))/3600+2, 5)) DESC NULLS LAST`
|