Minetrack/assets/js/favorites.js
2020-06-08 16:29:15 -05:00

70 lines
2.5 KiB
JavaScript

export const FAVORITE_SERVERS_STORAGE_KEY = 'minetrack_favorite_servers'
export class FavoritesManager {
constructor (app) {
this._app = app
}
loadLocalStorage () {
if (typeof localStorage !== 'undefined') {
let serverNames = localStorage.getItem(FAVORITE_SERVERS_STORAGE_KEY)
if (serverNames) {
serverNames = JSON.parse(serverNames)
for (let i = 0; i < serverNames.length; i++) {
const serverRegistration = this._app.serverRegistry.getServerRegistration(serverNames[i])
// The serverName may not exist in the backend configuration anymore
// Ensure serverRegistration is defined before mutating data or considering valid
if (serverRegistration) {
serverRegistration.isFavorite = true
// Update icon since by default it is unfavorited
document.getElementById(`favorite-toggle_${serverRegistration.serverId}`).setAttribute('class', this.getIconClass(serverRegistration.isFavorite))
}
}
}
}
}
updateLocalStorage () {
if (typeof localStorage !== 'undefined') {
// Mutate the serverIds array into server names for storage use
const serverNames = this._app.serverRegistry.getServerRegistrations()
.filter(serverRegistration => serverRegistration.isFavorite)
.map(serverRegistration => serverRegistration.data.name)
if (serverNames.length > 0) {
// Only save if the array contains data, otherwise clear the item
localStorage.setItem(FAVORITE_SERVERS_STORAGE_KEY, JSON.stringify(serverNames))
} else {
localStorage.removeItem(FAVORITE_SERVERS_STORAGE_KEY)
}
}
}
handleFavoriteButtonClick = (serverRegistration) => {
serverRegistration.isFavorite = !serverRegistration.isFavorite
// Update the displayed favorite icon
document.getElementById(`favorite-toggle_${serverRegistration.serverId}`).setAttribute('class', this.getIconClass(serverRegistration.isFavorite))
// Request the app controller instantly re-sort the server listing
// This handles the favorite sorting logic internally
this._app.sortController.sortServers()
this._app.graphDisplayManager.handleServerIsFavoriteUpdate(serverRegistration)
// Write an updated settings payload
this.updateLocalStorage()
}
getIconClass (isFavorite) {
if (isFavorite) {
return 'icon-star server-is-favorite'
} else {
return 'icon-star-o server-is-not-favorite'
}
}
}