From 0a2d5ef8200379f2fba401c7a024409c68c6e840 Mon Sep 17 00:00:00 2001
From: konrad <k@knt.li>
Date: Sat, 13 Nov 2021 19:49:02 +0000
Subject: [PATCH] feat: defer everything until the api config is loaded (#926)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/926
Reviewed-by: dpschen <dpschen@noreply.kolaente.de>
Co-authored-by: konrad <k@knt.li>
Co-committed-by: konrad <k@knt.li>
---
 src/App.vue                             |  69 +++-------
 src/components/home/contentNoAuth.vue   |  43 +-----
 src/components/home/navigation.vue      |  20 +--
 src/components/misc/api-config.vue      | 169 ++++++------------------
 src/components/misc/no-auth-wrapper.vue |  39 ++++++
 src/components/misc/ready.vue           | 141 ++++++++++++++++++++
 src/helpers/checkAndSetApiUrl.ts        | 118 +++++++++++++++++
 src/i18n/lang/en.json                   |  15 ++-
 src/store/index.js                      |  10 ++
 src/styles/theme/loading.scss           |  50 ++++---
 10 files changed, 419 insertions(+), 255 deletions(-)
 create mode 100644 src/components/misc/no-auth-wrapper.vue
 create mode 100644 src/components/misc/ready.vue
 create mode 100644 src/helpers/checkAndSetApiUrl.ts

diff --git a/src/App.vue b/src/App.vue
index dec28560..af2fc690 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,25 +1,21 @@
 <template>
-	<div :class="{'is-touch': isTouch}">
-		<div :class="{'is-hidden': !online}">
-			<!-- This is a workaround to get the sw to "see" the to-be-cached version of the offline background image -->
-			<div class="offline" style="height: 0;width: 0;"></div>
-			<top-navigation v-if="authUser"/>
-			<content-auth v-if="authUser"/>
-			<content-link-share v-else-if="authLinkShare"/>
-			<content-no-auth v-else/>
-			<notification/>
-		</div>
-		<div class="app offline" v-if="!online">
-			<div class="offline-message">
-				<h1>You are offline.</h1>
-				<p>Please check your network connection and try again.</p>
+	<ready>
+		<div :class="{'is-touch': isTouch}">
+			<div :class="{'is-hidden': !online}">
+				<template v-if="authUser">
+					<top-navigation/>
+					<content-auth/>
+				</template>
+				<content-link-share v-else-if="authLinkShare"/>
+				<content-no-auth v-else/>
+				<notification/>
 			</div>
-		</div>
 
-		<transition name="fade">
-			<keyboard-shortcuts v-if="keyboardShortcutsActive"/>
-		</transition>
-	</div>
+			<transition name="fade">
+				<keyboard-shortcuts v-if="keyboardShortcutsActive"/>
+			</transition>
+		</div>
+	</ready>
 </template>
 
 <script>
@@ -36,6 +32,7 @@ import ContentLinkShare from './components/home/contentLinkShare'
 import ContentNoAuth from './components/home/contentNoAuth'
 import {setLanguage} from './i18n'
 import AccountDeleteService from '@/services/accountDelete'
+import Ready from '@/components/misc/ready'
 
 export default defineComponent({
 	name: 'app',
@@ -46,6 +43,7 @@ export default defineComponent({
 		TopNavigation,
 		KeyboardShortcuts,
 		Notification,
+		Ready,
 	},
 	beforeMount() {
 		this.setupOnlineStatus()
@@ -54,13 +52,6 @@ export default defineComponent({
 		this.setupAccountDeletionVerification()
 	},
 	beforeCreate() {
-		// FIXME: async action in beforeCreate, might be not finished when component mounts
-		this.$store.dispatch('config/update')
-			.then(() => {
-				this.$store.dispatch('auth/checkAuth')
-			})
-		this.$store.dispatch('auth/checkAuth')
-
 		setLanguage()
 	},
 	created() {
@@ -121,29 +112,3 @@ export default defineComponent({
 <style lang="scss">
 @import '@/styles/global.scss';
 </style>
-
-<style lang="scss" scoped>
-.offline {
-  background: url('@/assets/llama-nightscape.jpg') no-repeat center;
-  background-size: cover;
-  height: 100vh;
-
-  .offline-message {
-    text-align: center;
-    position: absolute;
-    width: 100vw;
-    bottom: 5vh;
-    color: $white;
-    padding: 0 1rem;
-
-    h1 {
-      font-weight: bold;
-      font-size: 1.5rem;
-      text-align: center;
-      color: $white;
-      font-weight: 700 !important;
-      font-size: 1.5rem;
-    }
-  }
-}
-</style>
\ No newline at end of file
diff --git a/src/components/home/contentNoAuth.vue b/src/components/home/contentNoAuth.vue
index 38b945ee..f6b473c3 100644
--- a/src/components/home/contentNoAuth.vue
+++ b/src/components/home/contentNoAuth.vue
@@ -1,37 +1,20 @@
 <template>
-	<div class="no-auth-wrapper">
-		<div class="noauth-container">
-			<Logo width="400" height="117" />
-			<div class="message is-info" v-if="motd !== ''">
-				<div class="message-header">
-					<p>{{ $t('misc.info') }}</p>
-				</div>
-				<div class="message-body">
-					{{ motd }}
-				</div>
-			</div>
-			<router-view/>
-		</div>
-	</div>
+	<no-auth-wrapper>
+		<router-view/>
+	</no-auth-wrapper>
 </template>
 
 <script>
-import {mapState} from 'vuex'
-
-import Logo from '@/components/home/Logo.vue'
-
-import { saveLastVisited } from '@/helpers/saveLastVisited'
+import {saveLastVisited} from '@/helpers/saveLastVisited'
+import NoAuthWrapper from '@/components/misc/no-auth-wrapper'
 
 export default {
 	name: 'contentNoAuth',
-	components: { Logo },
+	components: {NoAuthWrapper},
 	computed: {
 		routeName() {
 			return this.$route.name
 		},
-		...mapState({
-			motd: state => state.config.motd,
-		}),
 	},
 	watch: {
 		routeName: {
@@ -62,17 +45,3 @@ export default {
 	},
 }
 </script>
-
-<style lang="scss" scoped>
-.no-auth-wrapper {
-  background: url('@/assets/llama.svg?url') no-repeat bottom left fixed $light-background;
-  min-height: 100vh;
-}
-
-.noauth-container {
-  max-width: 450px;
-  width: 100%;
-  margin: 0 auto;
-  padding: 1rem;
-}
-</style>
\ No newline at end of file
diff --git a/src/components/home/navigation.vue b/src/components/home/navigation.vue
index 9f5cfd11..5f9d1a21 100644
--- a/src/components/home/navigation.vue
+++ b/src/components/home/navigation.vue
@@ -48,7 +48,7 @@
 			</ul>
 		</div>
 
-		<aside class="menu namespaces-lists loader-container" :class="{'is-loading': loading}">
+		<aside class="menu namespaces-lists loader-container is-loading-small" :class="{'is-loading': loading}">
 			<template v-for="(n, nk) in namespaces" :key="n.id" >
 				<div class="namespace-title" :class="{'has-menu': n.id > 0}">
 					<span
@@ -105,7 +105,7 @@
 					>
 						<template #item="{element: l}">
 							<li
-								class="loader-container"
+								class="loader-container is-loading-small"
 								:class="{'is-loading': listUpdating[l.id]}"
 							>
 								<router-link
@@ -449,14 +449,6 @@ $vikunja-nav-selected-width: 0.4rem;
 				&:hover :deep(.dropdown-trigger) {
 					opacity: 1;
 				}
-
-				&.loader-container.is-loading:after {
-					width: 1.5rem;
-					height: 1.5rem;
-					top: calc(50% - .75rem);
-					left: calc(50% - .75rem);
-					border-width: 2px;
-				}
 			}
 
 			.flip-list-move {
@@ -533,14 +525,6 @@ $vikunja-nav-selected-width: 0.4rem;
 			padding-top: math.div($navbar-padding, 2);
 		}
 
-		&.loader-container.is-loading:after {
-			width: 1.5rem;
-			height: 1.5rem;
-			top: calc(50% - .75rem);
-			left: calc(50% - .75rem);
-			border-width: 2px;
-		}
-
 		.icon {
 			color: $grey-400 !important;
 		}
diff --git a/src/components/misc/api-config.vue b/src/components/misc/api-config.vue
index a60f0bb5..4d8eda15 100644
--- a/src/components/misc/api-config.vue
+++ b/src/components/misc/api-config.vue
@@ -26,7 +26,7 @@
 			<i18n-t keypath="apiConfig.signInOn">
 				<span class="url" v-tooltip="apiUrl"> {{ apiDomain }} </span>
 			</i18n-t>
-			<br />
+			<br/>
 			<a @click="() => (configureApi = true)">{{ $t('apiConfig.change') }}</a>
 		</div>
 
@@ -46,9 +46,8 @@
 </template>
 
 <script>
-import { parseURL } from 'ufo'
-
-const API_DEFAULT_PORT = 3456
+import {parseURL} from 'ufo'
+import {checkAndSetApiUrl} from '@/helpers/checkAndSetApiUrl'
 
 export default {
 	name: 'apiConfig',
@@ -71,128 +70,48 @@ export default {
 			return parseURL(this.apiUrl).host
 		},
 	},
+	props: {
+		configureOpen: {
+			type: Boolean,
+			required: false,
+			default: false,
+		},
+	},
+	watch: {
+		configureOpen: {
+			handler(value) {
+				this.configureApi = value
+			},
+			immediate: true,
+		},
+	},
 	methods: {
-		setApiUrl() {
+		async setApiUrl() {
 			if (this.apiUrl === '') {
+				// Don't try to check and set an empty url
+				this.errorMsg = this.$t('apiConfig.urlRequired')
 				return
 			}
 
-			let urlToCheck = this.apiUrl
+			try {
+				const url = await checkAndSetApiUrl(this.apiUrl)
 
-			// Check if the url has an http prefix
-			if (
-				!urlToCheck.startsWith('http://') &&
-				!urlToCheck.startsWith('https://')
-			) {
-				urlToCheck = `http://${urlToCheck}`
+				if (url === '') {
+					// If the config setter function could not figure out a url					
+					throw new Error('URL cannot be empty.')
+				}
+
+				// Set it + save it to local storage to save us the hoops
+				this.errorMsg = ''
+				this.successMsg = this.$t('apiConfig.success', {domain: this.apiDomain})
+				this.configureApi = false
+				this.apiUrl = url
+				this.$emit('foundApi', this.apiUrl)
+			} catch (e) {
+				// Still not found, url is still invalid
+				this.successMsg = ''
+				this.errorMsg = this.$t('apiConfig.error', {domain: this.apiDomain})
 			}
-
-			urlToCheck = new URL(urlToCheck)
-			const origUrlToCheck = urlToCheck
-
-			const oldUrl = window.API_URL
-			window.API_URL = urlToCheck.toString()
-
-			// Check if the api is reachable at the provided url
-			this.$store
-				.dispatch('config/update')
-				.catch((e) => {
-					// Check if it is reachable at /api/v1 and http
-					if (
-						!urlToCheck.pathname.endsWith('/api/v1') &&
-						!urlToCheck.pathname.endsWith('/api/v1/')
-					) {
-						urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it has a port and if not check if it is reachable at https
-					if (urlToCheck.protocol === 'http:') {
-						urlToCheck.protocol = 'https:'
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it is reachable at /api/v1 and https
-					urlToCheck.pathname = origUrlToCheck.pathname
-					if (
-						!urlToCheck.pathname.endsWith('/api/v1') &&
-						!urlToCheck.pathname.endsWith('/api/v1/')
-					) {
-						urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it is reachable at port API_DEFAULT_PORT and https
-					if (urlToCheck.port !== API_DEFAULT_PORT) {
-						urlToCheck.protocol = 'https:'
-						urlToCheck.port = API_DEFAULT_PORT
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it is reachable at :API_DEFAULT_PORT and /api/v1 and https
-					urlToCheck.pathname = origUrlToCheck.pathname
-					if (
-						!urlToCheck.pathname.endsWith('/api/v1') &&
-						!urlToCheck.pathname.endsWith('/api/v1/')
-					) {
-						urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it is reachable at port API_DEFAULT_PORT and http
-					if (urlToCheck.port !== API_DEFAULT_PORT) {
-						urlToCheck.protocol = 'http:'
-						urlToCheck.port = API_DEFAULT_PORT
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch((e) => {
-					// Check if it is reachable at :API_DEFAULT_PORT and /api/v1 and http
-					urlToCheck.pathname = origUrlToCheck.pathname
-					if (
-						!urlToCheck.pathname.endsWith('/api/v1') &&
-						!urlToCheck.pathname.endsWith('/api/v1/')
-					) {
-						urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
-						window.API_URL = urlToCheck.toString()
-						return this.$store.dispatch('config/update')
-					}
-					throw e
-				})
-				.catch(() => {
-					// Still not found, url is still invalid
-					this.successMsg = ''
-					this.errorMsg = this.$t('apiConfig.error', {domain: this.apiDomain})
-					window.API_URL = oldUrl
-				})
-				.then((r) => {
-					if (typeof r !== 'undefined') {
-						// Set it + save it to local storage to save us the hoops
-						this.errorMsg = ''
-						this.successMsg = this.$t('apiConfig.success', {domain: this.apiDomain})
-						localStorage.setItem('API_URL', window.API_URL)
-						this.configureApi = false
-						this.apiUrl = window.API_URL
-						this.$emit('foundApi', this.apiUrl)
-					}
-				})
 		},
 	},
 }
@@ -200,15 +119,15 @@ export default {
 
 <style lang="scss" scoped>
 .api-config {
-  margin-bottom: .75rem;
+	margin-bottom: .75rem;
 }
 
 .api-url-info {
-  font-size: .9rem;
-  text-align: right;
+	font-size: .9rem;
+	text-align: right;
+}
 
-  span.url {
-    border-bottom: 1px dashed $primary;
-  }
+.url {
+	border-bottom: 1px dashed $primary;
 }
 </style>
\ No newline at end of file
diff --git a/src/components/misc/no-auth-wrapper.vue b/src/components/misc/no-auth-wrapper.vue
new file mode 100644
index 00000000..02ab1bcc
--- /dev/null
+++ b/src/components/misc/no-auth-wrapper.vue
@@ -0,0 +1,39 @@
+<template>
+	<div class="no-auth-wrapper">
+		<div class="noauth-container">
+			<Logo width="400" height="117" />
+			<div class="message is-info" v-if="motd !== ''">
+				<div class="message-header">
+					<p>{{ $t('misc.info') }}</p>
+				</div>
+				<div class="message-body">
+					{{ motd }}
+				</div>
+			</div>
+			<slot/>
+		</div>
+	</div>
+</template>
+
+<script setup>
+import Logo from '@/components/home/Logo.vue'
+import {useStore} from 'vuex'
+import {computed} from 'vue'
+
+const store = useStore()
+const motd = computed(() => store.state.config.motd)
+</script>
+
+<style lang="scss" scoped>
+.no-auth-wrapper {
+	background: url('@/assets/llama.svg') no-repeat bottom left fixed $light-background;
+	min-height: 100vh;
+}
+
+.noauth-container {
+	max-width: 450px;
+	width: 100%;
+	margin: 0 auto;
+	padding: 1rem;
+}
+</style>
diff --git a/src/components/misc/ready.vue b/src/components/misc/ready.vue
new file mode 100644
index 00000000..20cd1941
--- /dev/null
+++ b/src/components/misc/ready.vue
@@ -0,0 +1,141 @@
+<template>
+	<!-- This is a workaround to get the sw to "see" the to-be-cached version of the offline background image -->
+	<div class="offline" style="height: 0;width: 0;"></div>
+	<div class="app offline" v-if="!online">
+		<div class="offline-message">
+			<h1>{{ $t('offline.title') }}</h1>
+			<p>{{ $t('offline.text') }}</p>
+		</div>
+	</div>
+	<template v-else-if="ready">
+		<slot/>
+	</template>
+	<section v-else-if="error !== ''">
+		<no-auth-wrapper>
+			<card>
+				<p v-if="error === errorNoApiUrl">
+					{{ $t('ready.noApiUrlConfigured') }}
+				</p>
+				<div class="notification is-danger" v-else>
+					<p>
+						{{ $t('ready.errorOccured') }}<br/>
+						{{ error }}
+					</p>
+					<p>
+						{{ $t('ready.checkApiUrl') }}
+					</p>
+				</div>
+				<api-config :configure-open="true" @found-api="load"/>
+			</card>
+		</no-auth-wrapper>
+	</section>
+	<transition name="fade">
+		<section class="vikunja-loading" v-if="showLoading">
+			<img alt="Vikunja" :src="logoUrl" width="100" height="100"/>
+			<p>
+				<span class="loader-container is-loading-small is-loading"></span>
+				{{ $t('ready.loading') }}
+			</p>
+		</section>
+	</transition>
+</template>
+
+<script>
+import logoUrl from '@/assets/logo.svg'
+import ApiConfig from '@/components/misc/api-config'
+import NoAuthWrapper from '@/components/misc/no-auth-wrapper'
+import {mapState} from 'vuex'
+import {ERROR_NO_API_URL} from '@/helpers/checkAndSetApiUrl'
+
+export default {
+	name: 'ready',
+	components: {
+		NoAuthWrapper,
+		ApiConfig,
+	},
+	data() {
+		return {
+			logoUrl,
+			error: '',
+			errorNoApiUrl: ERROR_NO_API_URL,
+		}
+	},
+	created() {
+		this.load()
+	},
+	computed: {
+		ready() {
+			return this.$store.state.vikunjaReady
+		},
+		showLoading() {
+			return !this.ready && this.error === ''
+		},
+		...mapState([
+			'online',
+		]),
+	},
+	methods: {
+		load() {
+			this.$store.dispatch('loadApp')
+				.catch(e => {
+					this.error = e
+				})
+		},
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+.vikunja-loading {
+	display: flex;
+	justify-content: center;
+	align-items: center;
+	height: 100vh;
+	width: 100vw;
+	flex-direction: column;
+	position: fixed;
+	top: 0;
+	left: 0;
+	bottom: 0;
+	right: 0;
+	background: $grey-100;
+	z-index: 99;
+
+	img {
+		margin-bottom: 1rem;
+	}
+}
+
+.loader-container {
+	margin-right: 1rem;
+
+	&.is-loading::after {
+		border-left-color: $grey-400;
+		border-bottom-color: $grey-400;
+	}
+}
+
+.offline {
+	background: url('@/assets/llama-nightscape.jpg') no-repeat center;
+	background-size: cover;
+	height: 100vh;
+}
+
+.offline-message {
+	text-align: center;
+	position: absolute;
+	width: 100vw;
+	bottom: 5vh;
+	color: $white;
+	padding: 0 1rem;
+
+	h1 {
+		font-weight: bold;
+		font-size: 1.5rem;
+		text-align: center;
+		color: $white;
+		font-weight: 700 !important;
+		font-size: 1.5rem;
+	}
+}
+</style>
diff --git a/src/helpers/checkAndSetApiUrl.ts b/src/helpers/checkAndSetApiUrl.ts
new file mode 100644
index 00000000..d3496568
--- /dev/null
+++ b/src/helpers/checkAndSetApiUrl.ts
@@ -0,0 +1,118 @@
+import {store} from '@/store'
+
+const API_DEFAULT_PORT = '3456'
+
+export const ERROR_NO_API_URL = 'noApiUrlProvided'
+
+const updateConfig = () => store.dispatch('config/update') 
+
+export const checkAndSetApiUrl = (url: string): Promise<string> => {
+	// Check if the url has an http prefix
+	if (
+		!url.startsWith('http://') &&
+		!url.startsWith('https://')
+	) {
+		url = `http://${url}`
+	}
+
+	const urlToCheck: URL = new URL(url)
+	const origUrlToCheck = urlToCheck
+
+	const oldUrl = window.API_URL
+	window.API_URL = urlToCheck.toString()
+
+	// Check if the api is reachable at the provided url
+	return updateConfig()
+		.catch(e => {
+			// Check if it is reachable at /api/v1 and http
+			if (
+				!urlToCheck.pathname.endsWith('/api/v1') &&
+				!urlToCheck.pathname.endsWith('/api/v1/')
+			) {
+				urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it has a port and if not check if it is reachable at https
+			if (urlToCheck.protocol === 'http:') {
+				urlToCheck.protocol = 'https:'
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it is reachable at /api/v1 and https
+			urlToCheck.pathname = origUrlToCheck.pathname
+			if (
+				!urlToCheck.pathname.endsWith('/api/v1') &&
+				!urlToCheck.pathname.endsWith('/api/v1/')
+			) {
+				urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it is reachable at port API_DEFAULT_PORT and https
+			if (urlToCheck.port !== API_DEFAULT_PORT) {
+				urlToCheck.protocol = 'https:'
+				urlToCheck.port = API_DEFAULT_PORT
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it is reachable at :API_DEFAULT_PORT and /api/v1 and https
+			urlToCheck.pathname = origUrlToCheck.pathname
+			if (
+				!urlToCheck.pathname.endsWith('/api/v1') &&
+				!urlToCheck.pathname.endsWith('/api/v1/')
+			) {
+				urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it is reachable at port API_DEFAULT_PORT and http
+			if (urlToCheck.port !== API_DEFAULT_PORT) {
+				urlToCheck.protocol = 'http:'
+				urlToCheck.port = API_DEFAULT_PORT
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			// Check if it is reachable at :API_DEFAULT_PORT and /api/v1 and http
+			urlToCheck.pathname = origUrlToCheck.pathname
+			if (
+				!urlToCheck.pathname.endsWith('/api/v1') &&
+				!urlToCheck.pathname.endsWith('/api/v1/')
+			) {
+				urlToCheck.pathname = `${urlToCheck.pathname}api/v1`
+				window.API_URL = urlToCheck.toString()
+				return updateConfig()
+			}
+			throw e
+		})
+		.catch(e => {
+			window.API_URL = oldUrl
+			throw e
+		})
+		.then(r => {
+			if (typeof r !== 'undefined') {
+				localStorage.setItem('API_URL', window.API_URL)
+				return window.API_URL
+			}
+			
+			throw new Error(ERROR_NO_API_URL)
+		})
+}
diff --git a/src/i18n/lang/en.json b/src/i18n/lang/en.json
index 194004a0..760300c9 100644
--- a/src/i18n/lang/en.json
+++ b/src/i18n/lang/en.json
@@ -16,6 +16,16 @@
     "title": "Not found",
     "text": "The page you requested does not exist."
   },
+  "ready": {
+    "loading": "Vikunja is loading…",
+    "errorOccured": "An error occured:",
+    "checkApiUrl": "Please check if the api url is correct.",
+    "noApiUrlConfigured": "No API url was configured. Please set one below:"
+  },
+  "offline": {
+    "title": "You are offline.",
+    "text": "Please check your network connection and try again."
+  },
   "user": {
     "auth": {
       "username": "Username",
@@ -779,8 +789,9 @@
     "urlPlaceholder": "eg. https://localhost:3456",
     "change": "change",
     "signInOn": "Sign in to your Vikunja account on {0}",
-    "error": "Could not find or use Vikunja installation at \"{domain}\".",
-    "success": "Using Vikunja installation at \"{domain}\"."
+    "error": "Could not find or use Vikunja installation at \"{domain}\". Please try a different url.",
+    "success": "Using Vikunja installation at \"{domain}\".",
+    "urlRequired": "A url is required."
   },
   "loadingError": {
     "failed": "Loading failed, please {0}. If the error persists, please {1}.",
diff --git a/src/store/index.js b/src/store/index.js
index c60e0ebf..250d9c60 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -19,6 +19,7 @@ import attachments from './modules/attachments'
 import labels from './modules/labels'
 
 import ListService from '../services/list'
+import {checkAndSetApiUrl} from '@/helpers/checkAndSetApiUrl'
 
 export const store = createStore({
 	strict: import.meta.env.DEV,
@@ -43,6 +44,7 @@ export const store = createStore({
 		menuActive: true,
 		keyboardShortcutsActive: false,
 		quickActionsActive: false,
+		vikunjaReady: false,
 	},
 	mutations: {
 		[LOADING](state, loading) {
@@ -84,6 +86,9 @@ export const store = createStore({
 		[BACKGROUND](state, background) {
 			state.background = background
 		},
+		vikunjaReady(state, ready) {
+			state.vikunjaReady = ready
+		},
 	},
 	actions: {
 		async [CURRENT_LIST]({state, commit}, currentList) {
@@ -138,5 +143,10 @@ export const store = createStore({
 
 			commit(CURRENT_LIST, currentList)
 		},
+		async loadApp({commit, dispatch}) {
+			await checkAndSetApiUrl(window.API_URL)
+			await dispatch('auth/checkAuth')
+			commit('vikunjaReady', true)
+		},
 	},
 })
diff --git a/src/styles/theme/loading.scss b/src/styles/theme/loading.scss
index a4a76a4c..e3e91b66 100644
--- a/src/styles/theme/loading.scss
+++ b/src/styles/theme/loading.scss
@@ -1,30 +1,38 @@
 // FIXME: move to loading.vue 
 .loader-container.is-loading {
-	position: relative;
-	pointer-events: none;
-	opacity: 0.5;
+  position: relative;
+  pointer-events: none;
+  opacity: 0.5;
 
-	&::after {
-		@include loader;
-		position: absolute;
-		top: calc(50% - 2.5rem);
-		left: calc(50% - 2.5rem);
-		width: 5rem;
-		height: 5rem;
-		border-width: 0.25rem;
-	}
+  &::after {
+    @include loader;
+    position: absolute;
+    top: calc(50% - 2.5rem);
+    left: calc(50% - 2.5rem);
+    width: 5rem;
+    height: 5rem;
+    border-width: 0.25rem;
+  }
+
+  &.is-loading-small::after {
+    width: 1.5rem;
+    height: 1.5rem;
+    top: calc(50% - .75rem);
+    left: calc(50% - .75rem);
+    border-width: 2px;
+  }
 }
 
 // FIXME: move to ShowTasks.vue 
 .spinner.is-loading {
-	pointer-events: none;
+  pointer-events: none;
 
-	&::after {
-		@include loader;
-		width: 2rem;
-		height: 2rem;
-		margin-left: calc(50% - 1rem);
-		margin-top: 1rem;
-		border-width: 0.25rem;
-	}
+  &::after {
+    @include loader;
+    width: 2rem;
+    height: 2rem;
+    margin-left: calc(50% - 1rem);
+    margin-top: 1rem;
+    border-width: 0.25rem;
+  }
 }
\ No newline at end of file