feat: add placeholder api conditions support

lang/src/main/resources/lang/en_GB.lang

@@ -189,6 +189,9 @@ tag.triggerblock.description=Sets the trigger block/s of the portal. Comma separ
 tag.command.description=Sets a command on the post activation of the portal. Comma separated or multi tag.
 tag.portalEvent.description=Triggers the portal from portal events rather than the player entering the portal. (survival nether portal)
 tag.message.description=Sets the message to be displayed when the portal is activated
+tag.conditions.description=Sets the conditions for the portal to be activated
+tag.conditions.fail=The conditions to activate this portal have not been met
+tag.conditions.invalid=The conditions are invalid
 
 tag.cooldown.fail= The cooldown must be a number.
 tag.command.nopermission= You do not have permission to create a command at %1$s command level

spigot/build.gradle

@@ -9,6 +9,7 @@ repositories {
     maven { url "https://repo.maven.apache.org/maven2" }
     maven { url "https://hub.spigotmc.org/nexus/content/repositories/snapshots/" }
     maven { url 'https://papermc.io/repo/repository/maven-public/' }
+    maven { url 'https://repo.extendedclip.com/releases/'}
 }
 
 // includeLibs just says to include the library in the final jar
@@ -23,6 +24,9 @@ dependencies {
     implementation "com.mojang:authlib:3.5.41"
     // Be careful to only use what you need to from paper, otherwise it will become incompatible with spigot.
     // compileOnly 'com.destroystokyo.paper:paper-api:1.16.5-R0.1-SNAPSHOT'
+
+    // Soft dependencies
+    compileOnly 'me.clip:placeholderapi:2.11.6'
 }
 
 tasks.named('compileJava') {

spigot/src/main/java/com/sekwah/advancedportals/spigot/AdvancedPortalsPlugin.java

@@ -16,6 +16,7 @@
 import com.sekwah.advancedportals.spigot.importer.ConfigAccessor;
 import com.sekwah.advancedportals.spigot.importer.LegacyImporter;
 import com.sekwah.advancedportals.spigot.metrics.Metrics;
+import com.sekwah.advancedportals.spigot.tags.ConditionsTag;
 import com.sekwah.advancedportals.spigot.warpeffects.SpigotWarpEffects;
 import java.io.File;
 import java.util.regex.Matcher;
@@ -88,6 +89,8 @@ public void onEnable() {
 
         this.portalsCore.registerPortalCommand("import",
                                                new ImportPortalSubCommand());
+
+        registerPlaceholderAPI();
     }
 
     private void checkAndCreateConfig() {
@@ -124,4 +127,10 @@ private void checkAndCreateConfig() {
     public void onDisable() {
         this.portalsCore.onDisable();
     }
+
+    public void registerPlaceholderAPI() {
+        if (this.getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
+            AdvancedPortalsCore.getInstance().getTagRegistry().registerTag(new ConditionsTag());
+        }
+    }
 }

spigot/src/main/java/com/sekwah/advancedportals/spigot/tags/ConditionsTag.java

@@ -0,0 +1,147 @@
+package com.sekwah.advancedportals.spigot.tags;
+
+import com.sekwah.advancedportals.core.connector.containers.PlayerContainer;
+import com.sekwah.advancedportals.core.registry.TagTarget;
+import com.sekwah.advancedportals.core.util.InfoLogger;
+import com.sekwah.advancedportals.core.util.Lang;
+import com.sekwah.advancedportals.core.warphandler.ActivationData;
+import com.sekwah.advancedportals.core.warphandler.Tag;
+import com.sekwah.advancedportals.shadowed.inject.Inject;
+import me.clip.placeholderapi.PlaceholderAPI;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+public class ConditionsTag implements Tag.Activation, Tag.Split, Tag.Creation {
+
+    @Inject
+    private InfoLogger infoLogger;
+
+    @Override
+    public boolean preActivated(TagTarget target, PlayerContainer player, ActivationData activeData, String[] argData) {
+
+        for (String condition : argData) {
+            if (!checkConditions(condition, Bukkit.getPlayer(player.getUUID()))) {
+                player.sendMessage(Lang.getNegativePrefix() + Lang.translate("tag.conditions.fail"));
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public void postActivated(TagTarget target, PlayerContainer player, ActivationData activationData, String[] argData) {
+
+    }
+
+    @Override
+    public boolean activated(TagTarget target, PlayerContainer player, ActivationData activationData, String[] argData) {
+        return false;
+    }
+
+    @Override
+    public TagType[] getTagTypes() {
+        return new TagType[] { TagType.PORTAL };
+    }
+
+    @Override
+    public String getName() {
+        return "conditions";
+    }
+
+    @Override
+    public String[] getAliases() {
+        return new String[0];
+    }
+
+    @Override
+    public String description() {
+        return Lang.translate("tag.conditions.description");
+    }
+
+    private boolean checkConditions(String condition, Player player) {
+        // Remove whitespaces before splitting the condition
+        String trimmedCondition = condition.replaceAll("\\s+", "");
+
+        // Check if the condition contains a valid operator
+        if (!trimmedCondition.matches(".*(<=|>=|<|>|==).*")) {
+            // Log a warning or handle the case where the condition format is invalid
+            infoLogger.warning("Invalid operator: " + condition);
+            return false;
+        }
+
+        // Split the condition into placeholder and value parts
+        String[] parts = trimmedCondition.split("<=|>=|<|>|==");
+
+        if (parts.length == 2) {
+            // Trim to remove any leading/trailing whitespaces
+            String placeholder = parts[0].trim();
+            String actualValue = PlaceholderAPI.setPlaceholders(player, placeholder);
+            String restOfCondition = parts[1].trim();
+
+            // Preserve the operator
+            String operator = condition.substring(placeholder.length(), condition.length() - restOfCondition.length()).trim();
+
+            return performComparison(actualValue, operator, restOfCondition);
+        } else {
+            // Log a warning or handle the case where the condition format is invalid
+            infoLogger.warning("Invalid condition format: " + condition);
+            return false;
+        }
+    }
+
+    private boolean performComparison(String actualValue, String operator, String expectedValue) {
+        if (isNumeric(actualValue) && isNumeric(expectedValue)) {
+            // Numeric comparison
+            double actualNumeric = Double.parseDouble(actualValue);
+            double expectedNumeric = Double.parseDouble(expectedValue);
+
+            return switch (operator) {
+                case "==" -> actualNumeric == expectedNumeric;
+                case "<" -> actualNumeric < expectedNumeric;
+                case ">" -> actualNumeric > expectedNumeric;
+                case "<=" -> actualNumeric <= expectedNumeric;
+                case ">=" -> actualNumeric >= expectedNumeric;
+                default -> false; // Unsupported operator
+            };
+        } else if (isBoolean(actualValue) && isBoolean(expectedValue)) {
+            // Boolean comparison
+            boolean actualBoolean = Boolean.parseBoolean(actualValue);
+            boolean expectedBoolean = Boolean.parseBoolean(expectedValue);
+
+            return actualBoolean == expectedBoolean;
+        } else {
+            // String comparison
+            return actualValue.equals(expectedValue);
+        }
+    }
+
+    private boolean isNumeric(String str) {
+        try {
+            Double.parseDouble(str);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    private boolean isBoolean(String str) {
+        return str.equalsIgnoreCase("true") || str.equalsIgnoreCase("false");
+    }
+
+    @Override
+    public boolean created(TagTarget target, PlayerContainer player, String[] argData) {
+        for (String condition : argData) {
+            if (!checkConditions(condition, Bukkit.getPlayer(player.getUUID()))) {
+                player.sendMessage(Lang.getNegativePrefix() + Lang.translate("tag.conditions.invalid"));
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public void destroyed(TagTarget target, PlayerContainer player, String[] argData) {
+
+    }
+}

spigot/src/main/templates/plugin.yml

@@ -4,6 +4,7 @@ version: ${pluginVersion}
 author: sekwah41
 description: An advanced portals plugin for bukkit.
 api-version: 1.13
+softdepend: ["PlaceholderAPI"]
 commands:
   portal:
     description: The main command for the advanced portals