157 lines
6.8 KiB
JavaScript
157 lines
6.8 KiB
JavaScript
import { AuthenticationError } from 'apollo-server-micro'
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import { decodeCursor, LIMIT, nextCursorEncoded } from '../../lib/cursor'
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import { getItem } from './item'
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export default {
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Query: {
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notifications: async (parent, { cursor }, { me, models }) => {
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const decodedCursor = decodeCursor(cursor)
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if (!me) {
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throw new AuthenticationError('you must be logged in')
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}
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/*
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So that we can cursor over results, we union notifications together ...
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this requires we have the same number of columns in all results
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select "Item".id, NULL as earnedSats, "Item".created_at as created_at from
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"Item" JOIN "Item" p ON "Item"."parentId" = p.id AND p."userId" = 622 AND
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"Item"."userId" <> 622 UNION ALL select "Item".id, "Vote".sats as earnedSats,
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"Vote".created_at as created_at FROM "Item" LEFT JOIN "Vote" on
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"Vote"."itemId" = "Item".id AND "Vote"."userId" <> 622 AND "Vote".boost = false
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WHERE "Item"."userId" = 622 ORDER BY created_at DESC;
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Because we want to "collapse" time adjacent votes in the result
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select vote.id, sum(vote."earnedSats") as "earnedSats", max(vote.voted_at)
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as "createdAt" from (select "Item".*, "Vote".sats as "earnedSats",
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"Vote".created_at as voted_at, ROW_NUMBER() OVER(ORDER BY "Vote".created_at) -
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ROW_NUMBER() OVER(PARTITION BY "Item".id ORDER BY "Vote".created_at) as island
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FROM "Item" LEFT JOIN "Vote" on "Vote"."itemId" = "Item".id AND
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"Vote"."userId" <> 622 AND "Vote".boost = false WHERE "Item"."userId" = 622)
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as vote group by vote.id, vote.island order by max(vote.voted_at) desc;
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We can also "collapse" votes occuring within 1 hour intervals of each other
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(I haven't yet combined with the above collapsing method .. but might be
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overkill)
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select "Item".id, sum("Vote".sats) as earnedSats, max("Vote".created_at)
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as created_at, ROW_NUMBER() OVER(ORDER BY max("Vote".created_at)) - ROW_NUMBER()
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OVER(PARTITION BY "Item".id ORDER BY max("Vote".created_at)) as island FROM
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"Item" LEFT JOIN "Vote" on "Vote"."itemId" = "Item".id AND "Vote"."userId" <> 622
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AND "Vote".boost = false WHERE "Item"."userId" = 622 group by "Item".id,
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date_trunc('hour', "Vote".created_at) order by created_at desc;
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island approach we used to take
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(SELECT ${ITEM_SUBQUERY_FIELDS}, max(subquery.voted_at) as "sortTime",
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sum(subquery.sats) as "earnedSats", false as mention
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FROM
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(SELECT ${ITEM_FIELDS}, "ItemAct".created_at as voted_at, "ItemAct".sats,
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ROW_NUMBER() OVER(ORDER BY "ItemAct".created_at) -
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ROW_NUMBER() OVER(PARTITION BY "Item".id ORDER BY "ItemAct".created_at) as island
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FROM "ItemAct"
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JOIN "Item" on "ItemAct"."itemId" = "Item".id
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WHERE "ItemAct"."userId" <> $1
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AND "ItemAct".created_at <= $2
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AND "ItemAct".act <> 'BOOST'
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AND "Item"."userId" = $1) subquery
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GROUP BY ${ITEM_SUBQUERY_FIELDS}, subquery.island
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ORDER BY max(subquery.voted_at) desc
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LIMIT ${LIMIT}+$3)
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*/
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// HACK to make notifications faster, we only return a limited sub set of the unioned
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// queries ... we only ever need at most LIMIT+current offset in the child queries to
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// have enough items to return in the union
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const notifications = await models.$queryRaw(`
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(SELECT "Item".id::TEXT, "Item".created_at AS "sortTime", NULL as "earnedSats",
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'Reply' AS type
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FROM "Item"
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JOIN "Item" p ON "Item"."parentId" = p.id
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WHERE p."userId" = $1
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AND "Item"."userId" <> $1 AND "Item".created_at <= $2
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ORDER BY "Item".created_at DESC
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LIMIT ${LIMIT}+$3)
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UNION ALL
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(SELECT "Item".id::TEXT, MAX("ItemAct".created_at) AS "sortTime",
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sum("ItemAct".sats) as "earnedSats", 'Votification' AS type
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FROM "Item"
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JOIN "ItemAct" ON "ItemAct"."itemId" = "Item".id
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WHERE "ItemAct"."userId" <> $1
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AND "ItemAct".created_at <= $2
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AND "ItemAct".act <> 'BOOST'
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AND "Item"."userId" = $1
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GROUP BY ${ITEM_GROUP_FIELDS}
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ORDER BY MAX("ItemAct".created_at) DESC
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LIMIT ${LIMIT}+$3)
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UNION ALL
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(SELECT "Item".id::TEXT, "Mention".created_at AS "sortTime", NULL as "earnedSats",
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'Mention' AS type
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FROM "Mention"
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JOIN "Item" ON "Mention"."itemId" = "Item".id
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LEFT JOIN "Item" p ON "Item"."parentId" = p.id
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WHERE "Mention"."userId" = $1
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AND "Mention".created_at <= $2
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AND "Item"."userId" <> $1
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AND (p."userId" IS NULL OR p."userId" <> $1)
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ORDER BY "Mention".created_at DESC
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LIMIT ${LIMIT}+$3)
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UNION ALL
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(SELECT "Invite".id, MAX(users.created_at) AS "sortTime", NULL as "earnedSats",
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'Invitification' AS type
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FROM users JOIN "Invite" on users."inviteId" = "Invite".id
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WHERE "Invite"."userId" = $1
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AND users.created_at <= $2
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GROUP BY "Invite".id)
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ORDER BY "sortTime" DESC
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OFFSET $3
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LIMIT ${LIMIT}`, me.id, decodedCursor.time, decodedCursor.offset)
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const { checkedNotesAt } = await models.user.findUnique({ where: { id: me.id } })
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if (decodedCursor.offset === 0) {
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await models.user.update({ where: { id: me.id }, data: { checkedNotesAt: new Date() } })
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}
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return {
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lastChecked: checkedNotesAt,
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cursor: notifications.length === LIMIT ? nextCursorEncoded(decodedCursor) : null,
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notifications
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}
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}
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},
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Notification: {
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__resolveType: async (n, args, { models }) => n.type
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},
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Votification: {
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item: async (n, args, { models }) => getItem(n, { id: n.id }, { models })
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},
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Reply: {
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item: async (n, args, { models }) => getItem(n, { id: n.id }, { models })
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},
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Mention: {
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mention: async (n, args, { models }) => true,
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item: async (n, args, { models }) => getItem(n, { id: n.id }, { models })
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},
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Invitification: {
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invite: async (n, args, { models }) => {
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return await models.invite.findUnique({
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where: {
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id: n.id
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}
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})
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}
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}
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}
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// const ITEM_SUBQUERY_FIELDS =
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// `subquery.id, subquery."createdAt", subquery."updatedAt", subquery.title, subquery.text,
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// subquery.url, subquery."userId", subquery."parentId", subquery.path`
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const ITEM_GROUP_FIELDS =
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`"Item".id, "Item".created_at, "Item".updated_at, "Item".title,
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"Item".text, "Item".url, "Item"."userId", "Item"."parentId", ltree2text("Item"."path")`
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// const ITEM_FIELDS =
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// `"Item".id, "Item".created_at as "createdAt", "Item".updated_at as "updatedAt", "Item".title,
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// "Item".text, "Item".url, "Item"."userId", "Item"."parentId", ltree2text("Item"."path") AS path`
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