initial commit

src/main/java/cc/fascinated/player/PlayerManagerService.java

@@ -0,0 +1,72 @@
+package cc.fascinated.player;
+
+import cc.fascinated.mojang.MojangAPIService;
+import cc.fascinated.mojang.types.MojangApiProfile;
+import cc.fascinated.mojang.types.MojangSessionServerProfile;
+import cc.fascinated.player.impl.Player;
+import cc.fascinated.util.UUIDUtils;
+import net.jodah.expiringmap.ExpirationPolicy;
+import net.jodah.expiringmap.ExpiringMap;
+import org.springframework.stereotype.Service;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+@Service
+public class PlayerManagerService {
+
+    /**
+     * The cache of players.
+     */
+    private final Map<UUID, Player> players = ExpiringMap.builder()
+            .expiration(1, TimeUnit.HOURS)
+            .expirationPolicy(ExpirationPolicy.CREATED)
+            .build();
+
+    /**
+     * The cache of player names to UUIDs.
+     */
+    private final Map<String, UUID> playerNameToUUIDCache = ExpiringMap.builder()
+            .expiration(1, TimeUnit.DAYS)
+            .expirationPolicy(ExpirationPolicy.CREATED)
+            .build();
+
+    private final MojangAPIService mojangAPIService;
+
+    public PlayerManagerService(MojangAPIService mojangAPIService) {
+        this.mojangAPIService = mojangAPIService;
+    }
+
+    /**
+     * Gets a player by their UUID.
+     *
+     * @param id the uuid or name of the player
+     * @return the player or null if the player does not exist
+     */
+    public Player getPlayer(String id) {
+        UUID uuid;
+        if (id.length() == 32 || id.length() == 36) {
+            uuid = UUID.fromString(id.length() == 32 ? UUIDUtils.addUUIDDashes(id) : id);
+        } else {
+            uuid = playerNameToUUIDCache.get(id.toUpperCase());
+        }
+
+        if (players.containsKey(uuid)) {
+            return players.get(uuid);
+        }
+
+        MojangSessionServerProfile profile = uuid == null ? null : mojangAPIService.getSessionServerProfile(uuid.toString());
+        if (profile == null) {
+            MojangApiProfile apiProfile = mojangAPIService.getApiProfile(id);
+            if (apiProfile == null) {
+                return null;
+            }
+            profile = mojangAPIService.getSessionServerProfile(apiProfile.getId().length() == 32 ? UUIDUtils.addUUIDDashes(apiProfile.getId()) : apiProfile.getId());
+        }
+        Player player = new Player(profile);
+        players.put(player.getUuid(), player);
+        playerNameToUUIDCache.put(player.getName().toUpperCase(), player.getUuid());
+        return player;
+    }
+}