users.js
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users.js
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	import backendInteractorService from '../services/backend_interactor_service/backend_interactor_service.js'
	import userSearchApi from '../services/new_api/user_search.js'
	import { compact, map, each, merge, last, concat, uniq } from 'lodash'
	import { set } from 'vue'
	import { registerPushNotifications, unregisterPushNotifications } from '../services/push/push.js'
	import { humanizeErrors } from './errors'

	// TODO: Unify with mergeOrAdd in statuses.js
	export const mergeOrAdd = (arr, obj, item) => {
	if (!item) { return false }
	const oldItem = obj[item.id]
	if (oldItem) {
	// We already have this, so only merge the new info.
	merge(oldItem, item)
	return { item: oldItem, new: false }
	} else {
	// This is a new item, prepare it
	arr.push(item)
	set(obj, item.id, item)
	if (item.screen_name && !item.screen_name.includes('@')) {
	set(obj, item.screen_name.toLowerCase(), item)
	}
	return { item, new: true }
	}
	}

	const getNotificationPermission = () => {
	const Notification = window.Notification

	if (!Notification) return Promise.resolve(null)
	if (Notification.permission === 'default') return Notification.requestPermission()
	return Promise.resolve(Notification.permission)
	}

	const blockUser = (store, id) => {
	return store.rootState.api.backendInteractor.blockUser(id)
	.then((relationship) => {
	store.commit('updateUserRelationship', [relationship])
	store.commit('addBlockId', id)
	store.commit('removeStatus', { timeline: 'friends', userId: id })
	store.commit('removeStatus', { timeline: 'public', userId: id })
	store.commit('removeStatus', { timeline: 'publicAndExternal', userId: id })
	})
	}

	const unblockUser = (store, id) => {
	return store.rootState.api.backendInteractor.unblockUser(id)
	.then((relationship) => store.commit('updateUserRelationship', [relationship]))
	}

	const muteUser = (store, id) => {
	return store.rootState.api.backendInteractor.muteUser(id)
	.then((relationship) => {
	store.commit('updateUserRelationship', [relationship])
	store.commit('addMuteId', id)
	})
	}

	const unmuteUser = (store, id) => {
	return store.rootState.api.backendInteractor.unmuteUser(id)
	.then((relationship) => store.commit('updateUserRelationship', [relationship]))
	}

	export const mutations = {
	setMuted (state, { user: { id }, muted }) {
	const user = state.usersObject[id]
	set(user, 'muted', muted)
	},
	tagUser (state, { user: { id }, tag }) {
	const user = state.usersObject[id]
	const tags = user.tags \|\| []
	const newTags = tags.concat([tag])
	set(user, 'tags', newTags)
	},
	untagUser (state, { user: { id }, tag }) {
	const user = state.usersObject[id]
	const tags = user.tags \|\| []
	const newTags = tags.filter(t => t !== tag)
	set(user, 'tags', newTags)
	},
	updateRight (state, { user: { id }, right, value }) {
	const user = state.usersObject[id]
	let newRights = user.rights
	newRights[right] = value
	set(user, 'rights', newRights)
	},
	updateActivationStatus (state, { user: { id }, status }) {
	const user = state.usersObject[id]
	set(user, 'deactivated', !status)
	},
	setCurrentUser (state, user) {
	state.lastLoginName = user.screen_name
	state.currentUser = merge(state.currentUser \|\| {}, user)
	},
	clearCurrentUser (state) {
	state.currentUser = false
	state.lastLoginName = false
	},
	beginLogin (state) {
	state.loggingIn = true
	},
	endLogin (state) {
	state.loggingIn = false
	},
	saveFriendIds (state, { id, friendIds }) {
	const user = state.usersObject[id]
	user.friendIds = uniq(concat(user.friendIds, friendIds))
	},
	saveFollowerIds (state, { id, followerIds }) {
	const user = state.usersObject[id]
	user.followerIds = uniq(concat(user.followerIds, followerIds))
	},
	// Because frontend doesn't have a reason to keep these stuff in memory
	// outside of viewing someones user profile.
	clearFriends (state, userId) {
	const user = state.usersObject[userId]
	if (user) {
	set(user, 'friendIds', [])
	}
	},
	clearFollowers (state, userId) {
	const user = state.usersObject[userId]
	if (user) {
	set(user, 'followerIds', [])
	}
	},
	addNewUsers (state, users) {
	each(users, (user) => mergeOrAdd(state.users, state.usersObject, user))
	},
	updateUserRelationship (state, relationships) {
	relationships.forEach((relationship) => {
	const user = state.usersObject[relationship.id]
	if (user) {
	user.follows_you = relationship.followed_by
	user.following = relationship.following
	user.muted = relationship.muting
	user.statusnet_blocking = relationship.blocking
	}
	})
	},
	updateBlocks (state, blockedUsers) {
	// Reset statusnet_blocking of all fetched users
	each(state.users, (user) => { user.statusnet_blocking = false })
	each(blockedUsers, (user) => mergeOrAdd(state.users, state.usersObject, user))
	},
	saveBlockIds (state, blockIds) {
	state.currentUser.blockIds = blockIds
	},
	addBlockId (state, blockId) {
	if (state.currentUser.blockIds.indexOf(blockId) === -1) {
	state.currentUser.blockIds.push(blockId)
	}
	},
	updateMutes (state, mutedUsers) {
	// Reset muted of all fetched users
	each(state.users, (user) => { user.muted = false })
	each(mutedUsers, (user) => mergeOrAdd(state.users, state.usersObject, user))
	},
	saveMuteIds (state, muteIds) {
	state.currentUser.muteIds = muteIds
	},
	addMuteId (state, muteId) {
	if (state.currentUser.muteIds.indexOf(muteId) === -1) {
	state.currentUser.muteIds.push(muteId)
	}
	},
	setPinned (state, status) {
	const user = state.usersObject[status.user.id]
	const index = user.pinnedStatuseIds.indexOf(status.id)
	if (status.pinned && index === -1) {
	user.pinnedStatuseIds.push(status.id)
	} else if (!status.pinned && index !== -1) {
	user.pinnedStatuseIds.splice(index, 1)
	}
	},
	setUserForStatus (state, status) {
	status.user = state.usersObject[status.user.id]
	},
	setUserForNotification (state, notification) {
	if (notification.type !== 'follow') {
	notification.action.user = state.usersObject[notification.action.user.id]
	}
	notification.from_profile = state.usersObject[notification.from_profile.id]
	},
	setColor (state, { user: { id }, highlighted }) {
	const user = state.usersObject[id]
	set(user, 'highlight', highlighted)
	},
	signUpPending (state) {
	state.signUpPending = true
	state.signUpErrors = []
	},
	signUpSuccess (state) {
	state.signUpPending = false
	},
	signUpFailure (state, errors) {
	state.signUpPending = false
	state.signUpErrors = errors
	}
	}

	export const getters = {
	findUser: state => query => {
	const result = state.usersObject[query]
	// In case it's a screen_name, we can try searching case-insensitive
	if (!result && typeof query === 'string') {
	return state.usersObject[query.toLowerCase()]
	}
	return result
	}
	}

	export const defaultState = {
	loggingIn: false,
	lastLoginName: false,
	currentUser: false,
	users: [],
	usersObject: {},
	signUpPending: false,
	signUpErrors: []
	}

	const users = {
	state: defaultState,
	mutations,
	getters,
	actions: {
	fetchUser (store, id) {
	return store.rootState.api.backendInteractor.fetchUser({ id })
	.then((user) => {
	store.commit('addNewUsers', [user])
	return user
	})
	},
	fetchUserRelationship (store, id) {
	if (store.state.currentUser) {
	store.rootState.api.backendInteractor.fetchUserRelationship({ id })
	.then((relationships) => store.commit('updateUserRelationship', relationships))
	}
	},
	fetchBlocks (store) {
	return store.rootState.api.backendInteractor.fetchBlocks()
	.then((blocks) => {
	store.commit('saveBlockIds', map(blocks, 'id'))
	store.commit('updateBlocks', blocks)
	return blocks
	})
	},
	blockUser (store, id) {
	return blockUser(store, id)
	},
	unblockUser (store, id) {
	return unblockUser(store, id)
	},
	blockUsers (store, ids = []) {
	return Promise.all(ids.map(id => blockUser(store, id)))
	},
	unblockUsers (store, ids = []) {
	return Promise.all(ids.map(id => unblockUser(store, id)))
	},
	fetchMutes (store) {
	return store.rootState.api.backendInteractor.fetchMutes()
	.then((mutes) => {
	store.commit('updateMutes', mutes)
	store.commit('saveMuteIds', map(mutes, 'id'))
	return mutes
	})
	},
	muteUser (store, id) {
	return muteUser(store, id)
	},
	unmuteUser (store, id) {
	return unmuteUser(store, id)
	},
	muteUsers (store, ids = []) {
	return Promise.all(ids.map(id => muteUser(store, id)))
	},
	unmuteUsers (store, ids = []) {
	return Promise.all(ids.map(id => unmuteUser(store, id)))
	},
	fetchFriends ({ rootState, commit }, id) {
	const user = rootState.users.usersObject[id]
	const maxId = last(user.friendIds)
	return rootState.api.backendInteractor.fetchFriends({ id, maxId })
	.then((friends) => {
	commit('addNewUsers', friends)
	commit('saveFriendIds', { id, friendIds: map(friends, 'id') })
	return friends
	})
	},
	fetchFollowers ({ rootState, commit }, id) {
	const user = rootState.users.usersObject[id]
	const maxId = last(user.followerIds)
	return rootState.api.backendInteractor.fetchFollowers({ id, maxId })
	.then((followers) => {
	commit('addNewUsers', followers)
	commit('saveFollowerIds', { id, followerIds: map(followers, 'id') })
	return followers
	})
	},
	clearFriends ({ commit }, userId) {
	commit('clearFriends', userId)
	},
	clearFollowers ({ commit }, userId) {
	commit('clearFollowers', userId)
	},
	registerPushNotifications (store) {
	const token = store.state.currentUser.credentials
	const vapidPublicKey = store.rootState.instance.vapidPublicKey
	const isEnabled = store.rootState.config.webPushNotifications
	const notificationVisibility = store.rootState.config.notificationVisibility

	registerPushNotifications(isEnabled, vapidPublicKey, token, notificationVisibility)
	},
	unregisterPushNotifications (store) {
	const token = store.state.currentUser.credentials

	unregisterPushNotifications(token)
	},
	addNewUsers ({ commit }, users) {
	commit('addNewUsers', users)
	},
	addNewStatuses (store, { statuses }) {
	const users = map(statuses, 'user')
	const retweetedUsers = compact(map(statuses, 'retweeted_status.user'))
	store.commit('addNewUsers', users)
	store.commit('addNewUsers', retweetedUsers)

	each(statuses, (status) => {
	// Reconnect users to statuses
	store.commit('setUserForStatus', status)
	// Set pinned statuses to user
	store.commit('setPinned', status)
	})
	each(compact(map(statuses, 'retweeted_status')), (status) => {
	// Reconnect users to retweets
	store.commit('setUserForStatus', status)
	// Set pinned retweets to user
	store.commit('setPinned', status)
	})
	},
	addNewNotifications (store, { notifications }) {
	const users = map(notifications, 'from_profile')
	const notificationIds = notifications.map(_ => _.id)
	store.commit('addNewUsers', users)

	const notificationsObject = store.rootState.statuses.notifications.idStore
	const relevantNotifications = Object.entries(notificationsObject)
	.filter(([k, val]) => notificationIds.includes(k))
	.map(([k, val]) => val)

	// Reconnect users to notifications
	each(relevantNotifications, (notification) => {
	store.commit('setUserForNotification', notification)
	})
	},
	searchUsers (store, query) {
	// TODO: Move userSearch api into api.service
	return userSearchApi.search({query, store: { state: store.rootState }})
	.then((users) => {
	store.commit('addNewUsers', users)
	return users
	})
	},
	async signUp (store, userInfo) {
	store.commit('signUpPending')

	let rootState = store.rootState

	try {
	let data = await rootState.api.backendInteractor.register(userInfo)
	store.commit('signUpSuccess')
	store.commit('setToken', data.access_token)
	store.dispatch('loginUser', data.access_token)
	} catch (e) {
	let errors = e.message
	// replace ap_id with username
	if (typeof errors === 'object') {
	if (errors.ap_id) {
	errors.username = errors.ap_id
	delete errors.ap_id
	}
	errors = humanizeErrors(errors)
	}
	store.commit('signUpFailure', errors)
	throw Error(errors)
	}
	},
	async getCaptcha (store) {
	return await store.rootState.api.backendInteractor.getCaptcha()
	},

	logout (store) {
	store.commit('clearCurrentUser')
	store.dispatch('disconnectFromChat')
	store.commit('setToken', false)
	store.dispatch('stopFetching', 'friends')
	store.commit('setBackendInteractor', backendInteractorService(store.getters.getToken()))
	store.dispatch('stopFetching', 'notifications')
	store.commit('clearNotifications')
	store.commit('resetStatuses')
	},
	loginUser (store, accessToken) {
	return new Promise((resolve, reject) => {
	const commit = store.commit
	commit('beginLogin')
	store.rootState.api.backendInteractor.verifyCredentials(accessToken)
	.then((data) => {
	if (!data.error) {
	const user = data
	// user.credentials = userCredentials
	user.credentials = accessToken
	user.blockIds = []
	user.muteIds = []
	commit('setCurrentUser', user)
	commit('addNewUsers', [user])

	getNotificationPermission()
	.then(permission => commit('setNotificationPermission', permission))

	// Set our new backend interactor
	commit('setBackendInteractor', backendInteractorService(accessToken))

	if (user.token) {
	store.dispatch('setWsToken', user.token)

	// Initialize the chat socket.
	store.dispatch('initializeSocket')
	}

	// Start getting fresh posts.
	store.dispatch('startFetchingTimeline', { timeline: 'friends' })

	// Start fetching notifications
	store.dispatch('startFetchingNotifications')

	// Get user mutes
	store.dispatch('fetchMutes')

	// Fetch our friends
	store.rootState.api.backendInteractor.fetchFriends({ id: user.id })
	.then((friends) => commit('addNewUsers', friends))
	} else {
	const response = data.error
	// Authentication failed
	commit('endLogin')
	if (response.status === 401) {
	reject('Wrong username or password')
	} else {
	reject('An error occurred, please try again')
	}
	}
	commit('endLogin')
	resolve()
	})
	.catch((error) => {
	console.log(error)
	commit('endLogin')
	reject('Failed to connect to server, try again')
	})
	})
	}
	}
	}

	export default users

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