Prevent creating POS in protected land (#150)

Author: zefir-git

src/main/java/pro/cloudnode/smp/bankaccounts/BankAccounts.java

@@ -23,7 +23,7 @@
 import pro.cloudnode.smp.bankaccounts.events.BlockBreak;
 import pro.cloudnode.smp.bankaccounts.events.GUI;
 import pro.cloudnode.smp.bankaccounts.events.Join;
-import pro.cloudnode.smp.bankaccounts.events.PlayerInteract;
+import pro.cloudnode.smp.bankaccounts.events.POSOpen;
 import pro.cloudnode.smp.bankaccounts.integrations.PAPIIntegration;
 import pro.cloudnode.smp.bankaccounts.integrations.VaultIntegration;
 
@@ -89,7 +89,7 @@ public void onEnable() {
         final @NotNull Listener[] events = new Listener[]{
                 new Join(),
                 new BlockBreak(),
-                new PlayerInteract(),
+                new POSOpen(),
                 new GUI()
         };
         for (final @NotNull Listener event : events) getServer().getPluginManager().registerEvents(event, this);

src/main/java/pro/cloudnode/smp/bankaccounts/commands/POSCommand.java

@@ -1,10 +1,14 @@
 package pro.cloudnode.smp.bankaccounts.commands;
 
 import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
 import org.bukkit.block.BlockState;
 import org.bukkit.block.Chest;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.bukkit.event.Event;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.inventory.DoubleChestInventory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -19,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;
+import java.util.List;
 import java.util.Optional;
 import java.util.Set;
 
@@ -71,6 +76,8 @@ public boolean execute(final @NotNull CommandSender sender, final @NotNull Strin
         if (block.isEmpty()) return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsAsyncFailed());
         if (!(block.get() instanceof final @NotNull Chest chest))
             return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsPosNotChest());
+        if (!canOpenChest(player, chest))
+            return true;
         if (chest.getInventory() instanceof DoubleChestInventory)
             return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsPosDoubleChest());
         if (chest.getInventory().isEmpty()) return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsPosEmpty());
@@ -88,6 +95,31 @@ public boolean execute(final @NotNull CommandSender sender, final @NotNull Strin
         return sendMessage(sender, BankAccounts.getInstance().config().messagesPosCreated(pos));
     }
 
+    private static boolean canOpenChest(final @NotNull Player player, final @NotNull Chest chest) {
+        return BankAccounts.runOnMain(() -> {
+            final @NotNull Block block = chest.getBlock();
+
+            final @NotNull PlayerInteractEvent event = new PlayerInteractEvent(
+                    player,
+                    Action.RIGHT_CLICK_BLOCK,
+                    player.getInventory().getItemInMainHand(),
+                    block,
+                    getTargetedFace(player).orElse(BlockFace.NORTH)
+            );
+
+            BankAccounts.getInstance().getServer().getPluginManager().callEvent(event);
+            return event.useInteractedBlock() != Event.Result.DENY;
+        }).orElse(false);
+    }
+
+    private static @NotNull Optional<@NotNull BlockFace> getTargetedFace(final @NotNull Player player) {
+        final @NotNull List<@NotNull Block> lastTwoTargetBlocks = player.getLastTwoTargetBlocks(null, 5);
+        if (lastTwoTargetBlocks.size() != 2 || !lastTwoTargetBlocks.get(1).getType().isOccluding()) return Optional.empty();
+        final @NotNull Block targetBlock = lastTwoTargetBlocks.get(1);
+        final @NotNull Block adjacentBlock = lastTwoTargetBlocks.get(0);
+        return Optional.ofNullable(targetBlock.getFace(adjacentBlock));
+    }
+
     @Override
     public @NotNull ArrayList<@NotNull String> tab(final @NotNull CommandSender sender, final @NotNull String @NotNull [] args) {
         final @NotNull ArrayList<@NotNull String> suggestions = new ArrayList<>();

src/main/java/pro/cloudnode/smp/bankaccounts/events/POSOpen.java

@@ -0,0 +1,62 @@
+package pro.cloudnode.smp.bankaccounts.events;
+
+import org.bukkit.block.Block;
+import org.bukkit.block.Chest;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Event;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.inventory.DoubleChestInventory;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import pro.cloudnode.smp.bankaccounts.Account;
+import pro.cloudnode.smp.bankaccounts.BankAccounts;
+import pro.cloudnode.smp.bankaccounts.POS;
+import pro.cloudnode.smp.bankaccounts.Permissions;
+
+import java.util.Optional;
+
+public final class POSOpen implements Listener {
+    @EventHandler
+    public void openPOS(final @NotNull PlayerInteractEvent event) {
+        if (event.getAction() != Action.RIGHT_CLICK_BLOCK) return;
+        final @Nullable Block block = event.getClickedBlock();
+        if (block == null) return;
+        if (!(block.getState() instanceof final @NotNull Chest chest)) return;
+        if (chest.getInventory().isEmpty()) return;
+        if (chest.getInventory() instanceof DoubleChestInventory) return;
+
+        final @NotNull Optional<POS> pos = POS.get(block);
+        if (pos.isEmpty()) return;
+
+        event.setUseInteractedBlock(Event.Result.DENY);
+
+        final @NotNull Player player = event.getPlayer();
+        if (player.getUniqueId().equals(pos.get().seller.owner.getUniqueId())) {
+            POS.openOwnerGui(player, chest, pos.get());
+            return;
+        }
+        if (!player.hasPermission(Permissions.POS_USE)) {
+            player.sendMessage(BankAccounts.getInstance().config().messagesErrorsPosNoPermission());
+            return;
+        }
+        final @NotNull ItemStack heldItem = player.getInventory().getItemInMainHand();
+        if (heldItem.getType() != BankAccounts.getInstance().config().instrumentsMaterial()) {
+            player.sendMessage(BankAccounts.getInstance().config().messagesErrorsNoCard());
+            return;
+        }
+        final @NotNull Optional<@NotNull Account> account = Account.get(heldItem);
+        if (account.isEmpty()) player.sendMessage(BankAccounts.getInstance().config().messagesErrorsPosInvalidCard());
+        else {
+            if (!player.hasPermission(Permissions.POS_USE_OTHER) && !account.get().owner.getUniqueId()
+                    .equals(player.getUniqueId())) {
+                player.sendMessage(BankAccounts.getInstance().config().messagesErrorsNotAccountOwner());
+                return;
+            }
+            POS.openBuyGui(player, chest, pos.get(), account.get());
+        }
+    }
+}