b5af28c48b
* server-side comments view tracking, model structure, mutation * full commentsViewedAt refactor, adjust comment creation and injection, adjust item navigation * update server-side tracking only if there's a change, light cleanup * coalesce meCommentsViewedAt to the item's createdAt, wip PoC comment outlining * don't update cache on item visit, use useRoot hook for outlining * add meCommentsViewedAt to root, better naming, light cleanup * better timestamp logic and comparisons, add lastCommentAt to root item object, added TODOs * fix: track commentsViewedAt only for root item, use topLevelId to fetch live comments only for the current item * only track commentsViewedAt for root item, light cleanup * light cleanup, correct live comments timestamp deps * worker: on midnight, untrack items that were never viewed and had no comments in the last 21 days
43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
const COMMENTS_VIEW_PREFIX = 'commentsViewedAt'
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const COMMENTS_NUM_PREFIX = 'commentsViewNum'
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export function commentsViewed (item) {
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if (!item.parentId && item.lastCommentAt) {
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window.localStorage.setItem(`${COMMENTS_VIEW_PREFIX}:${item.id}`, new Date(item.lastCommentAt).getTime())
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window.localStorage.setItem(`${COMMENTS_NUM_PREFIX}:${item.id}`, item.ncomments)
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}
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}
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export function commentsViewedAt (itemId) {
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return Number(window.localStorage.getItem(`${COMMENTS_VIEW_PREFIX}:${itemId}`))
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}
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export function commentsViewedNum (itemId) {
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return Number(window.localStorage.getItem(`${COMMENTS_NUM_PREFIX}:${itemId}`))
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}
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export function commentsViewedAfterComment (rootId, createdAt, ncomments = 1) {
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window.localStorage.setItem(`${COMMENTS_VIEW_PREFIX}:${rootId}`, new Date(createdAt).getTime())
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window.localStorage.setItem(`${COMMENTS_NUM_PREFIX}:${rootId}`, commentsViewedNum(rootId) + ncomments)
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}
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export function newComments (item) {
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if (!item.parentId && item.lastCommentAt) {
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// if logged, prefer server-tracked view
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if (item.meCommentsViewedAt) {
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const viewedAt = new Date(item.meCommentsViewedAt).getTime()
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return viewedAt < new Date(item.lastCommentAt).getTime()
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}
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// anon fallback
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const viewedAt = commentsViewedAt(item.id)
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const viewNum = commentsViewedNum(item.id)
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if (viewedAt && viewNum) {
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return viewedAt < new Date(item.lastCommentAt).getTime() || viewNum < item.ncomments
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}
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}
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return false
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}
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