Added plugin version checking

src/main/kotlin/com/hoshikurama/github/ticketmanager/Localization.kt

@@ -195,6 +195,7 @@ sealed class TMLocale(colourCode: String, locale: String) {
     val notifyTicketReopenEvent: String
     val notifyTicketSetPrioritySuccess: String
     val notifyTicketSetPriorityEvent: String
+    val notifyPluginUpdate: String
 
     // Information:
     val informationReloadInitiated: String
@@ -383,6 +384,7 @@ sealed class TMLocale(colourCode: String, locale: String) {
         warningsUnexpectedError = matchOrDefault("Warning_UnexpectedError")
         searchClosedBy = matchOrDefault("Search_ClosedBy")
         searchLastClosedBy = matchOrDefault("Search_LastClosedBy")
+        notifyPluginUpdate = matchOrDefault("Notify_Event_PluginUpdate")
     }
 }
 

src/main/kotlin/com/hoshikurama/github/ticketmanager/MetricsKotlin.kt

@@ -807,4 +807,22 @@ class Metrics(plugin: JavaPlugin, serviceId: Int) {
             logResponseStatusText
         )
     }
+}
+
+internal class UpdateChecker(private val resourceID: Int) {
+    internal fun getLatestVersion(): String? {
+        var inputStream: InputStream? = null
+        var scanner: Scanner? = null
+
+        return try {
+            inputStream = URL("https://api.spigotmc.org/legacy/update.php?resource=$resourceID").openStream()
+            scanner = Scanner(inputStream!!)
+            if (scanner.hasNext()) scanner.next() else null
+        }
+        catch (ignored: Exception) { null }
+        finally {
+            inputStream?.close()
+            scanner?.close()
+        }
+    }
 }

src/main/kotlin/com/hoshikurama/github/ticketmanager/PluginState.kt

@@ -8,9 +8,12 @@ import com.hoshikurama.github.ticketmanager.events.TabCompletePaper
 import com.hoshikurama.github.ticketmanager.events.TabCompleteSpigot
 import org.bukkit.Bukkit
 import java.io.File
+import java.io.InputStream
+import java.net.URL
 import java.time.Instant
 import java.util.*
 import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicReference
 import java.util.logging.Level
 
 class PluginState {
@@ -19,6 +22,7 @@ class PluginState {
     internal val database: Database
     internal val serverType: ServerType
     internal val allowUnreadTicketUpdates: Boolean
+    internal val updateAvailable: AtomicReference<Pair<String, String>?> = AtomicReference(null)
 
     init {
         mainPlugin.pluginLocked = true
@@ -61,6 +65,18 @@ class PluginState {
             } ?: SQLite()
 
             allowUnreadTicketUpdates = getBoolean("Allow_Unread_Ticket_Updates", true)
+
+            // Assigns update available
+            val allowUpdateCheck = getBoolean("Allow_UpdateChecking", false)
+            if (allowUpdateCheck) {
+                Bukkit.getScheduler().runTaskAsynchronously(mainPlugin, Runnable {
+
+                    val curVersion = mainPlugin.description.version
+                    val latestVersion = UpdateChecker(91178).getLatestVersion()
+                        .run { this ?: curVersion }
+                    updateAvailable.set(curVersion to latestVersion)
+                })
+            } else updateAvailable.set(null)
         }
 
         serverType = tryOrNull {

src/main/kotlin/com/hoshikurama/github/ticketmanager/events/PlayerJoin.kt

@@ -12,6 +12,17 @@ class PlayerJoin : Listener {
         if (anyLocksPresent()) return
         val player = event.player
 
+        // Plugin Update checking
+        val pluginUpdateStatus = pluginState.updateAvailable.get()
+        if (player.has("ticketmanager.notify.pluginUpdate") && pluginUpdateStatus != null) {
+            if (pluginUpdateStatus.first.replace(".", "").toInt() < pluginUpdateStatus.second.replace(".", "").toInt()) {
+                getLocale(player).notifyPluginUpdate
+                    .replace("%current%", pluginUpdateStatus.first)
+                    .replace("%latest%", pluginUpdateStatus.second)
+                    .run { sendColouredMessageTo(player) }
+            }
+        }
+
         // Unread Updates
         if (player.has("ticketmanager.notify.unreadUpdates.onJoin")) {
             pluginState.database.getTicketIDsWithUpdates(player.uniqueId)
@@ -30,7 +41,8 @@ class PlayerJoin : Listener {
         // View Open-Count and Assigned-Count Tickets
         if (player.has("ticketmanager.notify.openTickets.onJoin")) {
             val open = pluginState.database.getOpen().size.toString()
-            val assigned = pluginState.database.getOpenAssigned(player.name, mainPlugin.perms.getPlayerGroups(player).toList())
+            val assigned =
+                pluginState.database.getOpenAssigned(player.name, mainPlugin.perms.getPlayerGroups(player).toList())
                     .count().toString()
 
             getLocale(player).run { notifyOpenAssigned }

src/main/resources/config.yml

@@ -37,7 +37,7 @@ Console_Locale: 'en_CA'
 # Use Cool-down: Determine if cool-downs should be applied to ticket commands
 # that create or modify a ticket. Cool-downs apply to ALL users without the
 # override permission.
-# Values: 'true', 'false'
+# Values: true, false
 Use_Cooldowns: false
 #
 # Ticket Modification Cool-down: Time in seconds before a user is able to create or
@@ -78,5 +78,9 @@ Colour_Code: '&3'
 # This is NOT the same alert one immediately receives on ticket
 # status change. Setting value to 'false' prevents TicketManager
 # from flagging a ticket as unread.
-# Values: 'true', 'false'
-Allow_Unread_Ticket_Updates: true
+# Values: true, false
+Allow_Unread_Ticket_Updates: true
+#
+# Allow Update Checking: Server can check that the latest version of TicketManager is installed during startup or reloads.
+# Values: true, false
+Allow_UpdateChecking: true

src/main/resources/languages/Locales/Example.yml

@@ -194,4 +194,5 @@ Notify_Event_TicketComment: '%user%  %id%  %message%'
 Notify_Event_TicketCreation: '%user%  %id%  %%message%'
 Notify_Event_TicketModification: '%id%'
 Notify_Event_TicketReopen: '%user%  %id%'
-Notify_Event_SetPriority: '%user%  %id%  %priority%'
+Notify_Event_SetPriority: '%user%  %id%  %priority%'
+Notify_Event_PluginUpdate: '%current%  %latest%'

src/main/resources/languages/Locales/en_CA.yml

@@ -183,4 +183,5 @@ Notify_Event_TicketComment: '%CC%[TicketManager]&7 %user%%CC% commented on ticke
 Notify_Event_TicketCreation: '%CC%[TicketManager] &7%user%%CC% created ticket &7#%id%%CC%:&7%nl%%message%'
 Notify_Event_TicketModification: '%CC%[TicketManager] Ticket &7#%id%%CC% has been updated! Type &7/ticket view %id%%CC% to view this ticket.'
 Notify_Event_TicketReopen: '%CC%[TicketManager]&7 %user%%CC% re-opened ticket &7#%id%%CC%.'
-Notify_Event_SetPriority: '%CC%[TicketManager] &7%user%%CC% set ticket &7#%id%%CC% to priority %priority%'
+Notify_Event_SetPriority: '%CC%[TicketManager] &7%user%%CC% set ticket &7#%id%%CC% to priority %priority%'
+Notify_Event_PluginUpdate: '%CC%[TicketManager] TicketManager has an update!%nl%  %CC%Current Version: &7%current%%nl%  %CC%Latest Version: &7%latest%'

src/main/resources/plugin.yml

@@ -99,12 +99,15 @@ permissions:
   ticketmanager.notify.unreadUpdates.scheduled:
     description: See own tickets with updates at scheduled intervals
     default: false
-  ticketmanager.notify.warning:
-    description: See modified stacktrace on errors
-    default: false
   ticketmanager.notify.info:
     description: See general TicketManager information
     default: false
+  ticketmanager.notify.pluginUpdate:
+    description: Get notified of plugin update on login
+    default: false
+  ticketmanager.notify.warning:
+    description: See modified stacktrace on errors
+    default: false
   ticketmanager.notify.change.comment:
     description: Creator sees when user comments on their ticket
     default: false
@@ -189,6 +192,7 @@ permissions:
       ticketmanager.notify.info: true
       ticketmanager.massNotify.*: true
       ticketmanager.notify.change.*: true
+      ticketmanager.notify.pluginUpdate: true
     default: false
   ticketmanager.*:
     description: Wildcard for all TicketManager permissions