From 8d9e59b2a64dd639847ca5a133e055fd18f638d6 Mon Sep 17 00:00:00 2001
From: Shinigami92 <chrissi92@hotmail.de>
Date: Sun, 2 Apr 2023 16:56:13 +0200
Subject: [PATCH] add postprocess

---
 components/common/CommonPaginator.vue     | 27 ++++++++++------
 components/timeline/TimelineHome.vue      | 39 ++++++++++++++++++++++-
 components/timeline/TimelinePaginator.vue |  3 +-
 composables/timeline.ts                   | 29 +----------------
 nuxt.config.ts                            |  1 +
 5 files changed, 60 insertions(+), 39 deletions(-)

diff --git a/components/common/CommonPaginator.vue b/components/common/CommonPaginator.vue
index ee51666d..ddc236e7 100644
--- a/components/common/CommonPaginator.vue
+++ b/components/common/CommonPaginator.vue
@@ -11,6 +11,7 @@ const {
   virtualScroller = false,
   eventType = 'update',
   preprocess,
+  postprocess = items => items,
   noEndMessage = false,
 } = defineProps<{
   paginator: Paginator<T[], O>
@@ -19,6 +20,7 @@ const {
   stream?: Promise<WsEvents>
   eventType?: 'notification' | 'update'
   preprocess?: (items: (U | T)[]) => U[]
+  postprocess?: (items: U[]) => U[]
   noEndMessage?: boolean
 }>()
 
@@ -47,11 +49,18 @@ const nuxtApp = useNuxtApp()
 
 const { items, prevItems, update, state, endAnchor, error } = usePaginator(paginator, $$(stream), eventType, preprocess)
 
+const postProcessedItems = computedWithControl(() => postprocess(items.value as U[]), () => items.value)
+
 nuxtApp.hook('elk-logo:click', () => {
   update()
   nuxtApp.$scrollToTop()
 })
 
+nuxtApp.hook('elk-timeline-home-filter:change', () => {
+  postProcessedItems.trigger()
+  nuxtApp.$scrollToTop()
+})
+
 function createEntry(item: any) {
   items.value = [...items.value, preprocess?.([item]) ?? item]
 }
@@ -73,11 +82,11 @@ defineExpose({ createEntry, removeEntry, updateEntry })
 <template>
   <div>
     <slot v-if="prevItems.length" name="updater" v-bind="{ number: prevItems.length, update }" />
-    <slot name="items" :items="items">
+    <slot name="items" :items="postProcessedItems">
       <template v-if="virtualScroller">
         <DynamicScroller
           v-slot="{ item, active, index }"
-          :items="items"
+          :items="postProcessedItems"
           :min-item-size="200"
           :key-field="keyProp"
           page-mode
@@ -86,22 +95,22 @@ defineExpose({ createEntry, removeEntry, updateEntry })
             :key="item[keyProp]"
             :item="item"
             :active="active"
-            :older="items[index + 1]"
-            :newer="items[index - 1]"
+            :older="postProcessedItems[index + 1]"
+            :newer="postProcessedItems[index - 1]"
             :index="index"
-            :items="items"
+            :items="postProcessedItems"
           />
         </DynamicScroller>
       </template>
       <template v-else>
         <slot
-          v-for="item, index of items"
+          v-for="item, index of postProcessedItems"
           :key="(item as any)[keyProp]"
           :item="item"
-          :older="items[index + 1]"
-          :newer="items[index - 1]"
+          :older="postProcessedItems[index + 1]"
+          :newer="postProcessedItems[index - 1]"
           :index="index"
-          :items="items"
+          :items="postProcessedItems"
         />
       </template>
     </slot>
diff --git a/components/timeline/TimelineHome.vue b/components/timeline/TimelineHome.vue
index 95793794..aebf42b7 100644
--- a/components/timeline/TimelineHome.vue
+++ b/components/timeline/TimelineHome.vue
@@ -3,14 +3,51 @@ import type { mastodon } from 'masto'
 
 const paginator = useMastoClient().v1.timelines.listHome({ limit: 30 })
 const stream = $(useStreaming(client => client.v1.stream.streamUser()))
+
 function reorderAndFilter(items: mastodon.v1.Status[]) {
   return reorderedTimeline(items, 'home')
 }
+
+const homeFilter = useHomeFilter()
+
+function clientSideFilter(items: mastodon.v1.Status[]) {
+  const { bot, sensitive, repost, mutual, tag } = $(homeFilter.value)
+
+  return items.filter((item) => {
+    if (bot && sensitive && repost && mutual && tag)
+      return true
+
+    if (!bot && item.account.bot)
+      return false
+
+    if (!sensitive && item.sensitive)
+      return false
+
+    if (!repost && item.reblog != null)
+      return false
+
+    // if (!mutual && ??)
+    //   This would require a lookup of the user's followers
+    //   return false
+
+    // if (!tag && ??)
+    //   This would require a lookup of the user's tags
+    //   return false
+
+    return true
+  })
+}
+
+const nuxtApp = useNuxtApp()
+
+watch(homeFilter, () => {
+  nuxtApp.hooks.callHook('elk-timeline-home-filter:change')
+})
 </script>
 
 <template>
   <div>
     <PublishWidget draft-key="home" border="b base" />
-    <TimelinePaginator v-bind="{ paginator, stream }" :preprocess="reorderAndFilter" context="home" />
+    <TimelinePaginator v-bind="{ paginator, stream }" :preprocess="reorderAndFilter" :postprocess="clientSideFilter" context="home" />
   </div>
 </template>
diff --git a/components/timeline/TimelinePaginator.vue b/components/timeline/TimelinePaginator.vue
index 7a1c0a16..c7276415 100644
--- a/components/timeline/TimelinePaginator.vue
+++ b/components/timeline/TimelinePaginator.vue
@@ -10,6 +10,7 @@ const { paginator, stream, account, buffer = 10 } = defineProps<{
   context?: mastodon.v2.FilterContext
   account?: mastodon.v1.Account
   preprocess?: (items: mastodon.v1.Status[]) => mastodon.v1.Status[]
+  postprocess?: (items: mastodon.v1.Status[]) => mastodon.v1.Status[]
   buffer?: number
 }>()
 
@@ -22,7 +23,7 @@ const showOriginSite = $computed(() =>
 </script>
 
 <template>
-  <CommonPaginator v-bind="{ paginator, stream, preprocess, buffer }" :virtual-scroller="virtualScroller">
+  <CommonPaginator v-bind="{ paginator, stream, preprocess, postprocess, buffer }" :virtual-scroller="virtualScroller">
     <template #updater="{ number, update }">
       <button py-4 border="b base" flex="~ col" p-3 w-full text-primary font-bold @click="update">
         {{ $t('timeline.show_new_items', number, { named: { v: formatNumber(number) } }) }}
diff --git a/composables/timeline.ts b/composables/timeline.ts
index 1017da39..51988216 100644
--- a/composables/timeline.ts
+++ b/composables/timeline.ts
@@ -14,34 +14,7 @@ function removeFilteredItems(items: mastodon.v1.Status[], context: mastodon.v1.F
   const isFiltered = (item: mastodon.v1.Status) => (item.account.id === currentUser.value?.account.id) || !item.filtered?.find(isStrict)
   const isReblogFiltered = (item: mastodon.v1.Status) => !item.reblog?.filtered?.find(isStrict)
 
-  const homeFilter = useHomeFilter()
-  const { bot, sensitive, repost, mutual, tag } = homeFilter.value
-
-  const isClientSideHomeFiltered = (item: mastodon.v1.Status) => {
-    if (bot && sensitive && repost && mutual && tag)
-      return true
-
-    if (!bot && item.account.bot)
-      return false
-
-    if (!sensitive && item.sensitive)
-      return false
-
-    if (!repost && item.reblog != null)
-      return false
-
-    // if (!mutual && ??)
-    //   This would require a lookup of the user's followers
-    //   return false
-
-    // if (!tag && ??)
-    //   This would require a lookup of the user's tags
-    //   return false
-
-    return true
-  }
-
-  return [...items].filter(isFiltered).filter(isReblogFiltered).filter(isClientSideHomeFiltered)
+  return [...items].filter(isFiltered).filter(isReblogFiltered)
 }
 
 export function reorderedTimeline(items: mastodon.v1.Status[], context: mastodon.v1.FilterContext = 'public') {
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 514c6e3c..cd708ef6 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -257,5 +257,6 @@ declare global {
 declare module 'nuxt/dist/app' {
   interface RuntimeNuxtHooks {
     'elk-logo:click': () => void
+    'elk-timeline-home-filter:change': () => void
   }
 }