fix: fix basic login - clear store on log out (#1545)

fixes #1544

src/routes/_actions/instances.js

@@ -6,6 +6,7 @@ import { goto } from '../../../__sapper__/client'
 import { cacheFirstUpdateAfter } from '../_utils/sync'
 import { getInstanceInfo } from '../_api/instance'
 import { database } from '../_database/database'
+import { importVirtualListStore } from '../_utils/asyncModules'
 
 export function changeTheme (instanceName, newTheme) {
   const { instanceThemes } = store.get()
@@ -33,29 +34,50 @@ export function switchToInstance (instanceName) {
 
 export async function logOutOfInstance (instanceName, message = `Logged out of ${instanceName}`) {
   const {
-    loggedInInstances,
-    instanceThemes,
-    loggedInInstancesInOrder,
     composeData,
-    currentInstance
+    currentInstance,
+    customEmoji,
+    instanceInfos,
+    instanceLists,
+    instanceThemes,
+    loggedInInstances,
+    loggedInInstancesInOrder,
+    verifyCredentials
   } = store.get()
   loggedInInstancesInOrder.splice(loggedInInstancesInOrder.indexOf(instanceName), 1)
-  const newInstance = instanceName === currentInstance
-    ? loggedInInstancesInOrder[0]
-    : currentInstance
-  delete loggedInInstances[instanceName]
-  delete instanceThemes[instanceName]
-  delete composeData[instanceName]
+  const newInstance = instanceName === currentInstance ? loggedInInstancesInOrder[0] : currentInstance
+  const objectsToClear = [
+    composeData,
+    customEmoji,
+    instanceInfos,
+    instanceLists,
+    instanceThemes,
+    loggedInInstances,
+    verifyCredentials
+  ]
+  for (const obj of objectsToClear) {
+    delete obj[instanceName]
+  }
   store.set({
-    loggedInInstances: loggedInInstances,
-    instanceThemes: instanceThemes,
-    loggedInInstancesInOrder: loggedInInstancesInOrder,
+    composeData,
     currentInstance: newInstance,
-    searchResults: null,
+    customEmoji,
+    instanceInfos,
+    instanceLists,
+    instanceThemes,
+    loggedInInstances,
+    loggedInInstancesInOrder,
     queryInSearch: '',
-    composeData: composeData
+    searchResults: null,
+    timelineInitialized: false,
+    timelinePreinitialized: false,
+    verifyCredentials
   })
+  store.clearTimelineDataForInstance(instanceName)
+  store.clearAutosuggestDataForInstance(instanceName)
   store.save()
+  const { virtualListStore } = await importVirtualListStore()
+  virtualListStore.clearRealmByPrefix(currentInstance + '/') // TODO: this is a hacky way to clear the vlist cache
   toast.say(message)
   const { enableGrayscale } = store.get()
   switchToTheme(instanceThemes[newInstance], enableGrayscale)

src/routes/_actions/timeline.js

@@ -108,6 +108,7 @@ export async function setupTimeline () {
     timelineItemSummariesAreStale,
     currentTimeline
   } = store.get()
+  console.log({ timelineItemSummaries, timelineItemSummariesAreStale, currentTimeline })
   if (!timelineItemSummaries ||
       timelineItemSummariesAreStale ||
       currentTimeline.startsWith('status/')) {

src/routes/_components/virtualList/VirtualListContainer.html

@@ -40,7 +40,7 @@
               scrollContainer.scrollTop = scrollTop
               stop('set scrollTop')
               doubleRAF(() => {
-                console.log('initialized VirtualList')
+                console.log('initialized VirtualList (1)')
                 this.fire('initialized')
               })
             })
@@ -50,7 +50,7 @@
         this.fire('noNeedToScroll')
         this.observe('allVisibleItemsHaveHeight', allVisibleItemsHaveHeight => {
           if (allVisibleItemsHaveHeight) {
-            console.log('initialized VirtualList')
+            console.log('initialized VirtualList (2)')
             this.fire('initialized')
           }
         })

src/routes/_components/virtualList/virtualListStore.js

@@ -8,6 +8,21 @@ class VirtualListStore extends RealmStore {
   constructor (state) {
     super(state, /* maxSize */ 10)
   }
+
+  // TODO: this is hacky
+  clearRealmByPrefix (prefix) {
+    const { realms } = this.get()
+    if (!realms) {
+      return
+    }
+    for (const key of realms.getAllKeys()) {
+      if (key.startsWith(prefix)) {
+        console.log('deleted realm', key)
+        realms.delete(key)
+      }
+    }
+    this.set({ realms })
+  }
 }
 
 const virtualListStore = new VirtualListStore()
@@ -103,9 +118,10 @@ virtualListStore.compute('allVisibleItemsHaveHeight',
     return true
   })
 
-if (process.browser && process.env.NODE_ENV !== 'production') {
-  window.virtualListStore = virtualListStore
+if (process.browser) {
+  window.__virtualListStore = virtualListStore // for debugging
 
+  if (process.env.NODE_ENV !== 'production') { // for extra debugging
     virtualListStore.on('state', ({ changed }) => {
       if (changed.visibleItems) {
         window.visibleItemsChangedCount = (window.visibleItemsChangedCount || 0) + 1
@@ -114,6 +130,7 @@ if (process.browser && process.env.NODE_ENV !== 'production') {
         window.rawVisibleItemsChangedCount = (window.rawVisibleItemsChangedCount || 0) + 1
       }
     })
+  }
 }
 
 export {

src/routes/_database/timelines/insertion.js

@@ -110,6 +110,7 @@ async function insertStatusThread (instanceName, statusId, statuses) {
 }
 
 export async function insertTimelineItems (instanceName, timeline, timelineItems) {
+  console.log('insertTimelineItems', instanceName, timeline, timelineItems)
   /* no await */ scheduleCleanup()
   if (timeline === 'notifications' || timeline === 'notifications/mentions') {
     return insertTimelineNotifications(instanceName, timeline, timelineItems)

src/routes/_store/mixins/autosuggestMixins.js

@@ -23,4 +23,15 @@ export function autosuggestMixins (Store) {
     const { currentInstance, currentComposeRealm } = this.get()
     return get(this.get()[`autosuggestData_${key}`], [currentInstance, currentComposeRealm])
   }
+
+  Store.prototype.clearAutosuggestDataForInstance = function (instanceName) {
+    const changes = {}
+    Object.entries(this.get()).forEach(([key, value]) => {
+      if (key.startsWith('autosuggestData_') && value) {
+        delete value[instanceName]
+        changes[key] = value
+      }
+    })
+    this.set(changes)
+  }
 }

src/routes/_store/mixins/timelineMixins.js

@@ -43,4 +43,15 @@ export function timelineMixins (Store) {
       return key.startsWith('status/')
     })
   }
+
+  Store.prototype.clearTimelineDataForInstance = function (instanceName) {
+    const changes = {}
+    Object.entries(this.get()).forEach(([key, value]) => {
+      if (key.startsWith('timelineData_') && value) {
+        delete value[instanceName]
+        changes[key] = value
+      }
+    })
+    this.set(changes)
+  }
 }

src/routes/_thirdparty/quick-lru/quick-lru.js

@@ -87,6 +87,17 @@ export class QuickLRU extends EventEmitter {
     this._size = 0
   }
 
+  getAllKeys () {
+    const set = new Set()
+    for (const key of this.cache.keys()) {
+      set.add(key)
+    }
+    for (const key of this.oldCache.keys()) {
+      set.add(key)
+    }
+    return set
+  }
+
   // unused
   // * keys() {
   //   for (const [key] of this) {

src/routes/_utils/asyncModules.js

@@ -51,3 +51,7 @@ export const importComposeBox = () => import(
 export const importTesseractWorker = () => import(
   /* webpackChunkName: 'tesseractWorker' */ '../_utils/tesseractWorker.js'
 ).then(getDefault)
+
+export const importVirtualListStore = () => import(
+  /* webpackChunkName: 'virtualListStore.js' */ '../_components/virtualList/virtualListStore.js'
+)