Added support for SQL

eco-core/core-plugin/src/main/kotlin/com/willfp/boosters/BoosterUtils.kt

@@ -5,22 +5,62 @@ package com.willfp.boosters
 import com.willfp.boosters.boosters.ActivatedBooster
 import com.willfp.boosters.boosters.Booster
 import com.willfp.boosters.boosters.Boosters
+import com.willfp.eco.core.data.keys.PersistentDataKey
+import com.willfp.eco.core.data.keys.PersistentDataKeyType
 import com.willfp.eco.core.data.profile
 import org.bukkit.Bukkit
 import org.bukkit.OfflinePlayer
 import org.bukkit.Sound
 import org.bukkit.entity.Player
+import java.util.*
 
 private var active: ActivatedBooster? = null
 private val plugin = BoostersPlugin.instance
+private var usingSql: Boolean = false
 
 var activeBooster: ActivatedBooster?
     get() {
+        if (usingSql) {
+            val key = Bukkit.getServer().profile.read(boosterKey)
+
+            return if (key.isEmpty()) {
+                null
+            } else {
+                val booster = key.split("::")
+                val id = booster[0]
+                val uuid = UUID.fromString(booster[1])
+                ActivatedBooster(
+                    Boosters.getByID(id) ?: return null,
+                    uuid
+                )
+            }
+        } else {
             return active
         }
+    }
     set(value) {
+        if (usingSql) {
+            if (value == null) {
+                Bukkit.getServer().profile.write(boosterKey, "")
+            } else {
+                Bukkit.getServer().profile.write(boosterKey, "${value.booster.id}::${value.player}")
+            }
+        } else {
             active = value
         }
+    }
+
+private val boosterKey = PersistentDataKey(
+    plugin.namespacedKeyFactory.create("active_booster"),
+    PersistentDataKeyType.STRING,
+    ""
+)
+
+var useSQL: Boolean
+    get() = usingSql
+    set(value) {
+        usingSql = value
+    }
 
 val OfflinePlayer.boosters: List<Booster>
     get() {

eco-core/core-plugin/src/main/kotlin/com/willfp/boosters/BoostersPlugin.kt

@@ -16,6 +16,8 @@ class BoostersPlugin : LibReforgePlugin(0, 14269, "&e") {
     val boostersYml = BoostersYml(this)
 
     override fun handleEnableAdditional() {
+        useSQL = configYml.getBool("use-sql")
+
         PlaceholderManager.registerPlaceholder(
             PlaceholderEntry(
                 this,

eco-core/core-plugin/src/main/resources/config.yml

@@ -3,6 +3,11 @@
 # by Auxilor
 #
 
+# Will synchronize active booster over all servers in a network.
+# SQL Settings are in /plugins/eco/config.yml
+# If false, boosters will be server-specific.
+use-sql: false
+
 gui:
   title: Boosters
   rows: 3