Initial commit of SurvivalPlus plugin

src/main/java/de/viper/survivalplus/trade/TradeManager.java

@@ -0,0 +1,106 @@
+package de.viper.survivalplus.trade;
+
+import de.viper.survivalplus.SurvivalPlus;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+public class TradeManager {
+
+    private final SurvivalPlus plugin;
+    private final Map<UUID, TradeSession> activeTrades = new HashMap<>();
+    private final Map<UUID, UUID> pendingRequests = new HashMap<>();
+
+    public TradeManager(SurvivalPlus plugin) {
+        this.plugin = plugin;
+    }
+
+    public void requestTrade(Player sender, Player target) {
+        if (sender == null || target == null) return;
+        if (isTrading(sender) || isTrading(target)) {
+            sender.sendMessage(plugin.getLangConfig().getString("trade.already-trading", "§cEiner von euch ist bereits im Handel."));
+            return;
+        }
+
+        if (sender.getUniqueId().equals(target.getUniqueId())) {
+            sender.sendMessage(plugin.getLangConfig().getString("trade.with-yourself-not-allowed", "§cHandel mit dir selbst ist nicht erlaubt!"));
+            return;
+        }
+
+        pendingRequests.put(target.getUniqueId(), sender.getUniqueId());
+
+        String requestText = plugin.getLangConfig().getString("trade.request-text", "%player% möchte mit dir handeln. Klicke hier, um anzunehmen!")
+                .replace("%player%", sender.getName());
+
+        try {
+            net.md_5.bungee.api.chat.TextComponent message = new net.md_5.bungee.api.chat.TextComponent(requestText);
+            message.setColor(net.md_5.bungee.api.ChatColor.GREEN);
+            message.setClickEvent(new net.md_5.bungee.api.chat.ClickEvent(net.md_5.bungee.api.chat.ClickEvent.Action.RUN_COMMAND, "/tradeaccept " + sender.getName()));
+            target.spigot().sendMessage(message);
+        } catch (Throwable ex) {
+            target.sendMessage(requestText + " (/tradeaccept " + sender.getName() + ")");
+        }
+
+        sender.sendMessage(plugin.getLangConfig().getString("trade.request-sent", "§aHandelsanfrage an %player% gesendet.").replace("%player%", target.getName()));
+    }
+
+    public void acceptTrade(Player target, String requesterName) {
+        if (target == null || requesterName == null) return;
+
+        UUID pendingSenderUUID = pendingRequests.get(target.getUniqueId());
+        if (pendingSenderUUID == null) {
+            target.sendMessage(plugin.getLangConfig().getString("trade.no-pending-request", "§cKeine Handelsanfrage gefunden."));
+            return;
+        }
+
+        Player sender = Bukkit.getPlayer(pendingSenderUUID);
+        if (sender == null || !sender.isOnline()) {
+            target.sendMessage(plugin.getLangConfig().getString("trade.player-not-online", "§cDieser Spieler ist nicht online!"));
+            pendingRequests.remove(target.getUniqueId());
+            return;
+        }
+
+        pendingRequests.remove(target.getUniqueId());
+        startTrade(sender, target);
+    }
+
+    public void startTrade(Player sender, Player receiver) {
+        if (isTrading(sender) || isTrading(receiver)) {
+            sender.sendMessage(plugin.getLangConfig().getString("trade.already-trading", "§cEiner von euch ist bereits im Handel."));
+            return;
+        }
+
+        TradeSession session = new TradeSession(plugin, sender, receiver);
+        Bukkit.getPluginManager().registerEvents(session, plugin);
+
+        activeTrades.put(sender.getUniqueId(), session);
+        activeTrades.put(receiver.getUniqueId(), session);
+
+        session.openInventories();
+
+        sender.sendMessage(plugin.getLangConfig().getString("trade.started-sender", "§aTrade gestartet mit %player%").replace("%player%", receiver.getName()));
+        receiver.sendMessage(plugin.getLangConfig().getString("trade.started-receiver", "§a%player% hat dich zu einem Trade eingeladen.").replace("%player%", sender.getName()));
+    }
+
+    public void endTrade(TradeSession session) {
+        if (session == null) return;
+        Player s = session.getSender();
+        Player r = session.getReceiver();
+        if (s != null) activeTrades.remove(s.getUniqueId());
+        if (r != null) activeTrades.remove(r.getUniqueId());
+        session.endSession();
+    }
+
+    public TradeSession getTrade(Player player) {
+        if (player == null) return null;
+        return activeTrades.get(player.getUniqueId());
+    }
+
+    public boolean isTrading(Player player) {
+        if (player == null) return false;
+        return activeTrades.containsKey(player.getUniqueId());
+    }
+}