From 8c656eea6e9f36a8749acf0ec2ab5ac3953ec179 Mon Sep 17 00:00:00 2001
From: MTM123 <matiss234@gmail.com>
Date: Thu, 29 Aug 2019 15:04:51 +0300
Subject: [PATCH] Implement event for role changes

---
 .../event/FPlayerRoleChangeEvent.java         | 50 +++++++++++++++++++
 .../factions/zcore/persist/MemoryFPlayer.java | 13 ++++-
 2 files changed, 62 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/com/massivecraft/factions/event/FPlayerRoleChangeEvent.java

diff --git a/src/main/java/com/massivecraft/factions/event/FPlayerRoleChangeEvent.java b/src/main/java/com/massivecraft/factions/event/FPlayerRoleChangeEvent.java
new file mode 100644
index 00000000..fdbec66a
--- /dev/null
+++ b/src/main/java/com/massivecraft/factions/event/FPlayerRoleChangeEvent.java
@@ -0,0 +1,50 @@
+package com.massivecraft.factions.event;
+
+import com.massivecraft.factions.FPlayer;
+import com.massivecraft.factions.Faction;
+import com.massivecraft.factions.struct.Role;
+import org.bukkit.event.Cancellable;
+
+/**
+ * Represents {@link Role} change of a factions player
+ * @see FPlayer#getRole()
+ */
+public class FPlayerRoleChangeEvent extends FactionPlayerEvent implements Cancellable {
+
+    private boolean cancelled;
+    private final Role from;
+    private Role to;
+
+    public FPlayerRoleChangeEvent(Faction faction, FPlayer fPlayer, Role from, Role to) {
+        super(faction, fPlayer);
+        this.from = from;
+        this.to = to;
+    }
+
+    public FPlayerRoleChangeEvent(Faction faction, FPlayer fPlayer, Role to) {
+        this(faction, fPlayer, fPlayer.getRole(), to);
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return false;
+    }
+
+    @Override
+    public void setCancelled(boolean cancelled) {
+        this.cancelled = cancelled;
+    }
+
+    public Role getFrom() {
+        return from;
+    }
+
+    public Role getTo() {
+        return to;
+    }
+
+    public void setTo(Role to) {
+        this.to = to;
+    }
+
+}
diff --git a/src/main/java/com/massivecraft/factions/zcore/persist/MemoryFPlayer.java b/src/main/java/com/massivecraft/factions/zcore/persist/MemoryFPlayer.java
index e5bcc3de..afa7366d 100644
--- a/src/main/java/com/massivecraft/factions/zcore/persist/MemoryFPlayer.java
+++ b/src/main/java/com/massivecraft/factions/zcore/persist/MemoryFPlayer.java
@@ -241,7 +241,18 @@ public abstract class MemoryFPlayer implements FPlayer {
         return this.role;
     }
 
-    public void setRole(Role role) { this.role = role; }
+    public void setRole(Role role) {
+        if (this.role == role) {
+            return;
+        }
+
+        FPlayerRoleChangeEvent event = new FPlayerRoleChangeEvent(getFaction(), this, role);
+        Bukkit.getPluginManager().callEvent(event);
+
+        if (!event.isCancelled()) {
+            this.role = event.getTo();
+        }
+    }
 
     public double getPowerBoost() {
         return this.powerBoost;