From 3f20ae89a8838dfdb53ec90ac3e39436b5d2e771 Mon Sep 17 00:00:00 2001
From: konrad <konrad@kola-entertainments.de>
Date: Sun, 14 Feb 2021 19:18:51 +0000
Subject: [PATCH] Subscriptions and notifications for namespaces, tasks and
 lists (#410)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/410
Co-authored-by: konrad <konrad@kola-entertainments.de>
Co-committed-by: konrad <konrad@kola-entertainments.de>
---
 .../list/list-settings-dropdown.vue           |  18 +++
 src/components/misc/subscription.vue          | 121 ++++++++++++++++++
 .../namespace/namespace-settings-dropdown.vue |  18 +++
 src/main.js                                   |   5 +-
 src/models/list.js                            |   6 +
 src/models/namespace.js                       |   7 +
 src/models/subscription.js                    |  20 +++
 src/models/task.js                            |   6 +
 src/services/subscription.js                  |  15 +++
 src/views/tasks/TaskDetailView.vue            |   8 ++
 10 files changed, 223 insertions(+), 1 deletion(-)
 create mode 100644 src/components/misc/subscription.vue
 create mode 100644 src/models/subscription.js
 create mode 100644 src/services/subscription.js

diff --git a/src/components/list/list-settings-dropdown.vue b/src/components/list/list-settings-dropdown.vue
index c560efef..72af3814 100644
--- a/src/components/list/list-settings-dropdown.vue
+++ b/src/components/list/list-settings-dropdown.vue
@@ -54,6 +54,14 @@
 			>
 				Archive
 			</dropdown-item>
+			<task-subscription
+				class="dropdown-item has-no-shadow"
+				:is-button="false"
+				entity="list"
+				:entity-id="list.id"
+				:subscription="subscription"
+				@change="sub => subscription = sub"
+			/>
 			<dropdown-item
 				:to="{ name: `${listRoutePrefix}.settings.delete`, params: { listId: list.id } }"
 				icon="trash-alt"
@@ -69,10 +77,17 @@
 import {getSavedFilterIdFromListId} from '@/helpers/savedFilter'
 import Dropdown from '@/components/misc/dropdown'
 import DropdownItem from '@/components/misc/dropdown-item'
+import TaskSubscription from '@/components/misc/subscription'
 
 export default {
 	name: 'list-settings-dropdown',
+	data() {
+		return {
+			subscription: null,
+		}
+	},
 	components: {
+		TaskSubscription,
 		DropdownItem,
 		Dropdown,
 	},
@@ -81,6 +96,9 @@ export default {
 			required: true,
 		},
 	},
+	mounted() {
+		this.subscription = this.list.subscription
+	},
 	computed: {
 		backgroundsEnabled() {
 			return this.$store.state.config.enabledBackgroundProviders.length > 0
diff --git a/src/components/misc/subscription.vue b/src/components/misc/subscription.vue
new file mode 100644
index 00000000..d59a491c
--- /dev/null
+++ b/src/components/misc/subscription.vue
@@ -0,0 +1,121 @@
+<template>
+	<x-button
+		type="secondary"
+		:icon="icon"
+		v-tooltip="tooltipText"
+		@click="changeSubscription"
+		:disabled="disabled"
+		v-if="isButton"
+	>
+		{{ buttonText }}
+	</x-button>
+	<a
+		v-tooltip="tooltipText"
+		@click="changeSubscription"
+		:class="{'is-disabled': disabled}"
+		v-else
+	>
+		<span class="icon">
+			<icon :icon="icon"/>
+		</span>
+		{{ buttonText }}
+	</a>
+</template>
+
+<script>
+import SubscriptionService from '@/services/subscription'
+import SubscriptionModel from '@/models/subscription'
+
+export default {
+	name: 'task-subscription',
+	data() {
+		return {
+			subscriptionService: SubscriptionService,
+		}
+	},
+	props: {
+		entity: {
+			required: true,
+			type: String,
+		},
+		subscription: {
+			required: true,
+		},
+		entityId: {
+			required: true,
+		},
+		isButton: {
+			type: Boolean,
+			default: true,
+		},
+	},
+	created() {
+		this.subscriptionService = new SubscriptionService()
+	},
+	computed: {
+		tooltipText() {
+			if(this.disabled) {
+				return `You can't unsubscribe here because you are subscribed to this ${this.entity} through its ${this.subscription.entity}.`
+			}
+
+			return this.subscription !== null ?
+				`You are currently subscribed to this ${this.entity} and will receive notifications for changes.` :
+				`You are not subscribed to this ${this.entity} and won't receive notifications for changes.`
+		},
+		buttonText() {
+			return this.subscription !== null ? 'Unsubscribe' : 'Subscribe'
+		},
+		icon() {
+			return this.subscription !== null ? ['far', 'bell-slash'] : 'bell'
+		},
+		disabled() {
+			if (this.subscription === null) {
+				return false
+			}
+
+			return this.subscription.entity !== this.entity
+		},
+	},
+	methods: {
+		changeSubscription() {
+			if(this.disabled) {
+				return
+			}
+
+			if (this.subscription === null) {
+				this.subscribe()
+			} else {
+				this.unsubscribe()
+			}
+		},
+		subscribe() {
+			const subscription = new SubscriptionModel({
+				entity: this.entity,
+				entityId: this.entityId,
+			})
+			this.subscriptionService.create(subscription)
+				.then(() => {
+					this.$emit('change', subscription)
+					this.success({message: `You are now subscribed to this ${this.entity}`}, this)
+				})
+				.catch(e => {
+					this.error(e, this)
+				})
+		},
+		unsubscribe() {
+			const subscription = new SubscriptionModel({
+				entity: this.entity,
+				entityId: this.entityId,
+			})
+			this.subscriptionService.delete(subscription)
+				.then(() => {
+					this.$emit('change', null)
+					this.success({message: `You are now unsubscribed to this ${this.entity}`}, this)
+				})
+				.catch(e => {
+					this.error(e, this)
+				})
+		}
+	},
+}
+</script>
diff --git a/src/components/namespace/namespace-settings-dropdown.vue b/src/components/namespace/namespace-settings-dropdown.vue
index 70125cec..a647ed71 100644
--- a/src/components/namespace/namespace-settings-dropdown.vue
+++ b/src/components/namespace/namespace-settings-dropdown.vue
@@ -33,6 +33,14 @@
 			>
 				Archive
 			</dropdown-item>
+			<task-subscription
+				class="dropdown-item has-no-shadow"
+				:is-button="false"
+				entity="namespace"
+				:entity-id="namespace.id"
+				:subscription="subscription"
+				@change="sub => subscription = sub"
+			/>
 			<dropdown-item
 				:to="{ name: 'namespace.settings.delete', params: { id: namespace.id } }"
 				icon="trash-alt"
@@ -47,17 +55,27 @@
 <script>
 import Dropdown from '@/components/misc/dropdown'
 import DropdownItem from '@/components/misc/dropdown-item'
+import TaskSubscription from '@/components/misc/subscription'
 
 export default {
 	name: 'namespace-settings-dropdown',
+	data() {
+		return {
+			subscription: null,
+		}
+	},
 	components: {
 		DropdownItem,
 		Dropdown,
+		TaskSubscription,
 	},
 	props: {
 		namespace: {
 			required: true,
 		},
 	},
+	mounted() {
+		this.subscription = this.namespace.subscription
+	},
 }
 </script>
diff --git a/src/main.js b/src/main.js
index 75829e37..9f8a92bc 100644
--- a/src/main.js
+++ b/src/main.js
@@ -61,8 +61,9 @@ import {
 	faArchive,
 	faShareAlt,
 	faImage,
+	faBell,
 } from '@fortawesome/free-solid-svg-icons'
-import {faCalendarAlt, faClock, faComments, faSave, faStar, faTimesCircle, faSun} from '@fortawesome/free-regular-svg-icons'
+import {faCalendarAlt, faClock, faComments, faSave, faStar, faTimesCircle, faSun, faBellSlash} from '@fortawesome/free-regular-svg-icons'
 import {FontAwesomeIcon} from '@fortawesome/vue-fontawesome'
 // PWA
 import './registerServiceWorker'
@@ -152,6 +153,8 @@ library.add(faEllipsisH)
 library.add(faArchive)
 library.add(faShareAlt)
 library.add(faImage)
+library.add(faBell)
+library.add(faBellSlash)
 
 Vue.component('icon', FontAwesomeIcon)
 
diff --git a/src/models/list.js b/src/models/list.js
index cbae65cf..e098a600 100644
--- a/src/models/list.js
+++ b/src/models/list.js
@@ -2,6 +2,7 @@ import AbstractModel from './abstractModel'
 import TaskModel from './task'
 import UserModel from './user'
 import {getSavedFilterIdFromListId} from '@/helpers/savedFilter'
+import SubscriptionModel from '@/models/subscription'
 
 export default class ListModel extends AbstractModel {
 
@@ -19,6 +20,10 @@ export default class ListModel extends AbstractModel {
 
 		this.owner = new UserModel(this.owner)
 
+		if(typeof this.subscription !== 'undefined' && this.subscription !== null) {
+			this.subscription = new SubscriptionModel(this.subscription)
+		}
+
 		this.created = new Date(this.created)
 		this.updated = new Date(this.updated)
 	}
@@ -37,6 +42,7 @@ export default class ListModel extends AbstractModel {
 			identifier: '',
 			backgroundInformation: null,
 			isFavorite: false,
+			subscription: null,
 
 			created: null,
 			updated: null,
diff --git a/src/models/namespace.js b/src/models/namespace.js
index 92869202..88c049aa 100644
--- a/src/models/namespace.js
+++ b/src/models/namespace.js
@@ -1,6 +1,7 @@
 import AbstractModel from './abstractModel'
 import ListModel from './list'
 import UserModel from './user'
+import SubscriptionModel from '@/models/subscription'
 
 export default class NamespaceModel extends AbstractModel {
 	constructor(data) {
@@ -13,8 +14,13 @@ export default class NamespaceModel extends AbstractModel {
 		this.lists = this.lists.map(l => {
 			return new ListModel(l)
 		})
+
 		this.owner = new UserModel(this.owner)
 
+		if(typeof this.subscription !== 'undefined' && this.subscription !== null) {
+			this.subscription = new SubscriptionModel(this.subscription)
+		}
+
 		this.created = new Date(this.created)
 		this.updated = new Date(this.updated)
 	}
@@ -29,6 +35,7 @@ export default class NamespaceModel extends AbstractModel {
 			lists: [],
 			isArchived: false,
 			hexColor: '',
+			subscription: null,
 
 			created: null,
 			updated: null,
diff --git a/src/models/subscription.js b/src/models/subscription.js
new file mode 100644
index 00000000..68d0be85
--- /dev/null
+++ b/src/models/subscription.js
@@ -0,0 +1,20 @@
+import AbstractModel from '@/models/abstractModel'
+import UserModel from '@/models/user'
+
+export default class SubscriptionModel extends AbstractModel {
+	constructor(data) {
+		super(data)
+		this.user = new UserModel(this.user)
+		this.created = new Date(this.created)
+	}
+
+	defaults() {
+		return {
+			id: 0,
+			entity: '',
+			entityId: 0,
+			created: null,
+			user: {},
+		}
+	}
+}
diff --git a/src/models/task.js b/src/models/task.js
index 091f58b7..d6385d50 100644
--- a/src/models/task.js
+++ b/src/models/task.js
@@ -2,6 +2,7 @@ import AbstractModel from './abstractModel'
 import UserModel from './user'
 import LabelModel from './label'
 import AttachmentModel from './attachment'
+import SubscriptionModel from '@/models/subscription'
 
 const parseDate = date => {
 	if (date && !date.startsWith('0001')) {
@@ -75,6 +76,10 @@ export default class TaskModel extends AbstractModel {
 			this.identifier = ''
 		}
 
+		if(typeof this.subscription !== 'undefined' && this.subscription !== null) {
+			this.subscription = new SubscriptionModel(this.subscription)
+		}
+
 		this.created = new Date(this.created)
 		this.updated = new Date(this.updated)
 	}
@@ -104,6 +109,7 @@ export default class TaskModel extends AbstractModel {
 			identifier: '',
 			index: 0,
 			isFavorite: false,
+			subscription: null,
 
 			createdBy: UserModel,
 			created: null,
diff --git a/src/services/subscription.js b/src/services/subscription.js
new file mode 100644
index 00000000..20c79c09
--- /dev/null
+++ b/src/services/subscription.js
@@ -0,0 +1,15 @@
+import AbstractService from '@/services/abstractService'
+import SubscriptionModel from '@/models/subscription'
+
+export default class SubscriptionService extends AbstractService {
+	constructor() {
+		super({
+			create: '/subscriptions/{entity}/{entityId}',
+			delete: '/subscriptions/{entity}/{entityId}',
+		})
+	}
+
+	modelFactory(data) {
+		return new SubscriptionModel(data)
+	}
+}
\ No newline at end of file
diff --git a/src/views/tasks/TaskDetailView.vue b/src/views/tasks/TaskDetailView.vue
index ca300e1a..cb838f0a 100644
--- a/src/views/tasks/TaskDetailView.vue
+++ b/src/views/tasks/TaskDetailView.vue
@@ -255,6 +255,12 @@
 					>
 						{{ task.done ? 'Mark as undone' : 'Done!' }}
 					</x-button>
+					<task-subscription
+						entity="task"
+						:entity-id="task.id"
+						:subscription="task.subscription"
+						@change="sub => task.subscription = sub"
+					/>
 					<x-button
 						@click="setFieldActive('assignees')"
 						@shortkey="setFieldActive('assignees')"
@@ -422,10 +428,12 @@ import attachmentUpload from '../../components/tasks/mixins/attachmentUpload'
 import heading from '@/components/tasks/partials/heading'
 import Datepicker from '@/components/input/datepicker'
 import {playPop} from '@/helpers/playPop'
+import TaskSubscription from '@/components/misc/subscription'
 
 export default {
 	name: 'TaskDetailView',
 	components: {
+		TaskSubscription,
 		Datepicker,
 		ColorPicker,
 		ListSearch,