From 47a320e2d06d22ded9191ad8aa496b0a547b809c Mon Sep 17 00:00:00 2001
From: "Grigorii K. Shartsev" <me@shgk.me>
Date: Wed, 20 Mar 2024 23:33:31 +0100
Subject: [PATCH] feat: handle callUser links on page without reload

Signed-off-by: Grigorii K. Shartsev <me@shgk.me>
---
 src/store/conversationsStore.js |  4 ++
 src/views/WelcomeView.vue       | 87 +++++++++++++++++++++++++++++++--
 2 files changed, 87 insertions(+), 4 deletions(-)

diff --git a/src/store/conversationsStore.js b/src/store/conversationsStore.js
index 2940562fe55..a09ebf4e279 100644
--- a/src/store/conversationsStore.js
+++ b/src/store/conversationsStore.js
@@ -164,6 +164,10 @@ const getters = {
 				&& !getters.isModerator
 				&& (conversation.permissions & PARTICIPANT.PERMISSIONS.LOBBY_IGNORE) === 0
 	},
+	getConversationForUser: (state, getters) => {
+		return (userId) => getters.conversationsList
+			.find((conversation) => conversation.type === CONVERSATION.TYPE.ONE_TO_ONE && conversation.name === userId)
+	},
 }
 
 const mutations = {
diff --git a/src/views/WelcomeView.vue b/src/views/WelcomeView.vue
index c3958694708..dea546d8027 100644
--- a/src/views/WelcomeView.vue
+++ b/src/views/WelcomeView.vue
@@ -1,14 +1,19 @@
 <template>
-	<EmptyView :name="t('spreed', 'Join a conversation or start a new one')"
-		:description="t('spreed', 'Say hi to your friends and colleagues!')">
+	<EmptyView :name="text.name"
+		:description="text.description">
 		<template #icon>
-			<NcIconSvgWrapper :svg="IconTalk" />
+			<NcLoadingIcon v-if="callUser" />
+			<NcIconSvgWrapper v-else :svg="IconTalk" />
 		</template>
 	</EmptyView>
 </template>
 
 <script>
+import { showError } from '@nextcloud/dialogs'
+import { translate as t } from '@nextcloud/l10n'
+
 import NcIconSvgWrapper from '@nextcloud/vue/dist/Components/NcIconSvgWrapper.js'
+import NcLoadingIcon from '@nextcloud/vue/dist/Components/NcLoadingIcon.js'
 
 import EmptyView from '../components/EmptyView.vue'
 
@@ -19,12 +24,86 @@ export default {
 
 	components: {
 		EmptyView,
-		NcIconSvgWrapper
+		NcIconSvgWrapper,
+		NcLoadingIcon,
 	},
+
 	setup() {
 		return {
 			IconTalk,
 		}
+	},
+
+	data() {
+		return {
+			isCreatingConversationForCallUser: false,
+		}
+	},
+
+	computed: {
+		callUser() {
+			return this.$route.query.callUser
+		},
+
+		text() {
+			if (this.isCreatingConversationForCallUser) {
+				return {
+					name: t('spreed', 'Creating and joining a conversation with "{userid}"', { userid: this.callUser }),
+					description: '',
+				}
+			}
+
+			if (this.callUser) {
+				return {
+					name: t('spreed', 'Joining a conversation with "{userid}"', { userid: this.callUser }),
+					description: '',
+				}
+			}
+
+			return {
+				name: t('spreed', 'Join a conversation or start a new one'),
+				description: t('spreed', 'Say hi to your friends and colleagues!'),
+			}
+		}
+	},
+
+	watch: {
+		callUser: {
+			immediate: true,
+			handler() {
+				if (this.callUser) {
+					this.createAndJoinConversationForCallUser()
+				}
+			}
+		}
+	},
+
+	methods: {
+		async createAndJoinConversationForCallUser() {
+			// Try to find an existing conversation
+			const conversation = this.$store.getters.getConversationForUser(this.callUser)
+			if (conversation) {
+				this.$router.push({
+					name: 'conversation',
+					params: { token: conversation.token },
+				})
+				return
+			}
+
+			// Create a new one-to-one conversation
+			this.isCreatingConversationForCallUser = true
+			try {
+				const newConversation = await this.$store.dispatch('createOneToOneConversation', this.callUser)
+				this.$router.push({
+					name: 'conversation',
+					params: { token: newConversation.token },
+				})
+			} catch (error) {
+				showError(t('spreed', 'Error while joining the conversation'))
+				console.error(error)
+				this.$router.push({ name: 'notfound' })
+			}
+		},
 	}
 }
 </script>