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Give the unfiltered view if the language filter yields no results (close #358) (#382)

zio/stable
Paul Frazee 2023-04-03 16:33:14 -05:00 committed by GitHub
parent 9102af6b07
commit 50f7f9877f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 23 additions and 6 deletions
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29
src/lib/api/feed-manip.ts
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@ -7,7 +7,7 @@ type FeedViewPost = AppBskyFeedDefs.FeedViewPost
export type FeedTunerFn = ( export type FeedTunerFn = (
tuner: FeedTuner, tuner: FeedTuner,
slices: FeedViewPostsSlice[], slices: FeedViewPostsSlice[],
) => void ) => FeedViewPostsSlice[]
export class FeedViewPostsSlice { export class FeedViewPostsSlice {
isFlattenedReply = false isFlattenedReply = false
@ -87,7 +87,7 @@ export class FeedTuner {
feed: FeedViewPost[], feed: FeedViewPost[],
tunerFns: FeedTunerFn[] = [], tunerFns: FeedTunerFn[] = [],
): FeedViewPostsSlice[] { ): FeedViewPostsSlice[] {
const slices: FeedViewPostsSlice[] = [] let slices: FeedViewPostsSlice[] = []
// arrange the posts into thread slices // arrange the posts into thread slices
for (let i = feed.length - 1; i >= 0; i--) { for (let i = feed.length - 1; i >= 0; i--) {
@ -106,7 +106,7 @@ export class FeedTuner {
// run the custom tuners // run the custom tuners
for (const tunerFn of tunerFns) { for (const tunerFn of tunerFns) {
tunerFn(this, slices) slices = tunerFn(this, slices.slice())
} }
// remove any items already "seen" // remove any items already "seen"
@ -148,7 +148,10 @@ export class FeedTuner {
return slices return slices
} }
static dedupReposts(tuner: FeedTuner, slices: FeedViewPostsSlice[]) { static dedupReposts(
tuner: FeedTuner,
slices: FeedViewPostsSlice[],
): FeedViewPostsSlice[] {
// remove duplicates caused by reposts // remove duplicates caused by reposts
for (let i = 0; i < slices.length; i++) { for (let i = 0; i < slices.length; i++) {
const item1 = slices[i] const item1 = slices[i]
@ -164,9 +167,13 @@ export class FeedTuner {
} }
} }
} }
return slices
} }
static likedRepliesOnly(tuner: FeedTuner, slices: FeedViewPostsSlice[]) { static likedRepliesOnly(
tuner: FeedTuner,
slices: FeedViewPostsSlice[],
): FeedViewPostsSlice[] {
// remove any replies without at least 2 likes // remove any replies without at least 2 likes
for (let i = slices.length - 1; i >= 0; i--) { for (let i = slices.length - 1; i >= 0; i--) {
if (slices[i].isFullThread || !slices[i].rootItem.reply) { if (slices[i].isFullThread || !slices[i].rootItem.reply) {
@ -178,11 +185,16 @@ export class FeedTuner {
slices.splice(i, 1) slices.splice(i, 1)
} }
} }
return slices
} }
static preferredLangOnly(langsCode2: string[]) { static preferredLangOnly(langsCode2: string[]) {
const langsCode3 = langsCode2.map(l => LANGUAGES_MAP_CODE2[l]?.code3 || l) const langsCode3 = langsCode2.map(l => LANGUAGES_MAP_CODE2[l]?.code3 || l)
return (tuner: FeedTuner, slices: FeedViewPostsSlice[]) => { return (
tuner: FeedTuner,
slices: FeedViewPostsSlice[],
): FeedViewPostsSlice[] => {
const origSlices = slices.concat()
for (let i = slices.length - 1; i >= 0; i--) { for (let i = slices.length - 1; i >= 0; i--) {
let hasPreferredLang = false let hasPreferredLang = false
for (const item of slices[i].items) { for (const item of slices[i].items) {
@ -202,6 +214,11 @@ export class FeedTuner {
slices.splice(i, 1) slices.splice(i, 1)
} }
} }
if (slices.length) {
return slices
}
// fallback: give everything if the language filter left nothing
return origSlices
} }
} }
} }