Add vote_goal placeholders

bukkit/src/main/java/com/azuriom/azlink/bukkit/placeholders/VotePlaceholderProvider.java

@@ -22,6 +22,7 @@ public class VotePlaceholderProvider implements PlaceholderProvider, Runnable, L
     private final Map<Integer, VoteSite> voteSites = new HashMap<>();
     private final Map<String, VoteUser> users = new HashMap<>();
     private final List<TopVoteUser> topVotes = new ArrayList<>();
+    private volatile VoteGoal goal;
 
     private volatile boolean pendingRefresh = true;
     private volatile Instant lastUpdate = Instant.MIN;
@@ -64,7 +65,9 @@ public List<String> availablePlaceholders() {
                 "%azlink_vote_sites_[id]_name%",
                 "%azlink_vote_sites_[id]_url%",
                 "%azlink_vote_top_[position]_name%",
-                "%azlink_vote_top_[position]_votes%"
+                "%azlink_vote_top_[position]_votes%",
+                "%azlink_vote_goal_target%",
+                "%azlink_vote_goal_progress%"
         );
     }
 
@@ -94,6 +97,8 @@ public String evaluatePlaceholder(String[] parts, OfflinePlayer player) {
                     return topPlaceholder(parts);
                 case "sites":
                     return sitePlaceholder(parts);
+                case "goal":
+                    return goalPlaceholder(parts);
                 default:
                     return null;
             }
@@ -134,6 +139,23 @@ private String userCanPlaceholder(String[] parts, OfflinePlayer player) throws N
         return null;
     }
 
+    private String goalPlaceholder(String[] parts) throws NumberFormatException {
+        VoteGoal currentGoal = this.goal;
+
+        if (currentGoal == null) {
+            return "0";
+        }
+
+        switch (parts[1]) {
+            case "target":
+                return Integer.toString(currentGoal.target);
+            case "progress":
+                return Integer.toString(currentGoal.progress);
+            default:
+                return null;
+        }
+    }
+
     private String sitePlaceholder(String[] parts) throws NumberFormatException {
         if (parts[1].equals("count")) {
             return Integer.toString(voteSites.size());
@@ -229,6 +251,7 @@ private void refreshData() {
                     this.voteSites.clear();
                     this.users.clear();
                     this.topVotes.clear();
+                    this.goal = response.goal;
 
                     for (VoteSite site : response.sites) {
                         this.voteSites.put(site.id, site);
@@ -260,6 +283,12 @@ public static class VoteResponse {
         public List<VoteUser> users = new ArrayList<>();
         @SerializedName("top_votes")
         public List<TopVoteUser> topVotes = new ArrayList<>();
+        public VoteGoal goal;
+    }
+
+    public static class VoteGoal {
+        public int target;
+        public int progress;
     }
 
     public static class VoteUser {