From b5ecffb725d78c154f469d7e2868574ca7ecff30 Mon Sep 17 00:00:00 2001
From: BONNe <bonne@bonne.id.lv>
Date: Mon, 6 Apr 2020 20:14:34 +0300
Subject: [PATCH] Add 2 new placeholders:

- `[gamemode]_challenge_latest_level_name` returns latest unlocked challenge level name
- `[gamemode]_challenge_latest_level_id` returns latest unlocked challenge level id

Fixes #226
---
 .../bentobox/challenges/ChallengesAddon.java  | 17 +++++++++++++++
 .../challenges/ChallengesManager.java         | 21 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/src/main/java/world/bentobox/challenges/ChallengesAddon.java b/src/main/java/world/bentobox/challenges/ChallengesAddon.java
index 9c8a3eb..e2fd286 100644
--- a/src/main/java/world/bentobox/challenges/ChallengesAddon.java
+++ b/src/main/java/world/bentobox/challenges/ChallengesAddon.java
@@ -21,6 +21,7 @@ import world.bentobox.challenges.commands.ChallengesUserCommand;
 import world.bentobox.challenges.commands.admin.Challenges;
 import world.bentobox.challenges.commands.admin.ChallengesAdminCommand;
 import world.bentobox.challenges.config.Settings;
+import world.bentobox.challenges.database.object.ChallengeLevel;
 import world.bentobox.challenges.handlers.ChallengeDataRequestHandler;
 import world.bentobox.challenges.handlers.ChallengeListRequestHandler;
 import world.bentobox.challenges.handlers.CompletedChallengesRequestHandler;
@@ -361,6 +362,22 @@ public class ChallengesAddon extends Addon {
             gameMode + "_challenge_locked_level_count",
             user -> String.valueOf(this.challengesManager.getLevelCount(world) -
                 this.challengesManager.getUnlockedLevelCount(user, world)));
+
+        // Latest challenge level name placeholder
+        this.getPlugin().getPlaceholdersManager().registerPlaceholder(this,
+            gameMode + "_challenge_latest_level_name",
+            user -> {
+                ChallengeLevel level = this.challengesManager.getLatestUnlockedLevel(user, world);
+                return level != null ? level.getFriendlyName() : "";
+            });
+
+        // Latest challenge level id placeholder
+        this.getPlugin().getPlaceholdersManager().registerPlaceholder(this,
+            gameMode + "_challenge_latest_level_id",
+            user -> {
+                ChallengeLevel level = this.challengesManager.getLatestUnlockedLevel(user, world);
+                return level != null ? level.getUniqueId() : "";
+            });
     }
 
 
diff --git a/src/main/java/world/bentobox/challenges/ChallengesManager.java b/src/main/java/world/bentobox/challenges/ChallengesManager.java
index 544e8af..26e7653 100644
--- a/src/main/java/world/bentobox/challenges/ChallengesManager.java
+++ b/src/main/java/world/bentobox/challenges/ChallengesManager.java
@@ -1514,6 +1514,27 @@ public class ChallengesManager
     }
 
 
+    /**
+     * This method returns latest ChallengeLevel object that is unlocked.
+     * @param user user who latest unlocked level must be returned.
+     * @param world World where level operates.
+     * @return ChallengeLevel for latest unlocked level.
+     */
+    @Nullable
+    public ChallengeLevel getLatestUnlockedLevel(User user, World world)
+    {
+        LevelStatus lastStatus = null;
+
+        for (Iterator<LevelStatus> statusIterator = this.getAllChallengeLevelStatus(user, world).iterator();
+            statusIterator.hasNext() && (lastStatus == null || !lastStatus.isUnlocked());)
+        {
+            lastStatus = statusIterator.next();
+        }
+
+        return lastStatus != null ? lastStatus.getLevel() : null;
+    }
+
+
     // ---------------------------------------------------------------------
     // Section: Challenges related methods
     // ---------------------------------------------------------------------