Added has permissions requirement type

src/main/java/com/extendedclip/deluxemenus/config/DeluxeMenusConfig.java

@@ -1142,6 +1142,44 @@ private RequirementList getRequirements(FileConfiguration c, String path) {
                         );
                     }
                     break;
+                case HAS_PERMISSIONS:
+                case DOES_NOT_HAVE_PERMISSIONS:
+                    if (c.contains(rPath + ".permissions")) {
+                        invert = type == RequirementType.DOES_NOT_HAVE_PERMISSIONS;
+                        int minimum = -1;
+                        if (c.contains(rPath + ".minimum") && (minimum = c.getInt(rPath + ".minimum")) < 1) {
+                            DeluxeMenus.debug(
+                                    DebugLevel.HIGHEST,
+                                    Level.WARNING,
+                                    "Has Permissions requirement at path: " + rPath + " has a minimum lower than 1. All permissions will be checked"
+                            );
+                            minimum = -1;
+                        }
+                        List<String> permissions = c.getStringList(rPath + ".permissions");
+                        if (permissions.isEmpty()) {
+                            DeluxeMenus.debug(
+                                    DebugLevel.HIGHEST,
+                                    Level.WARNING,
+                                    "Has Permissions requirement at path: " + rPath + " has no permissions to check. Ignoring..."
+                            );
+                            break;
+                        } else if (minimum > permissions.size()) {
+                            DeluxeMenus.debug(
+                                    DebugLevel.HIGHEST,
+                                    Level.WARNING,
+                                    "Has Permissions requirement at path: " + rPath + " has a minimum higher than the amount of permissions. Using "+permissions.size()+" instead"
+                            );
+                            minimum = permissions.size();
+                        }
+                        req = new HasPermissionsRequirement(permissions, minimum, invert);
+                    } else {
+                        DeluxeMenus.debug(
+                                DebugLevel.HIGHEST,
+                                Level.WARNING,
+                                "Has Permissions requirement at path: " + rPath + " does not contain permissions: entry"
+                        );
+                    }
+                    break;
                 case JAVASCRIPT:
                     if (c.contains(rPath + ".expression")) {
                         req = new JavascriptRequirement(c.getString(rPath + ".expression"));

src/main/java/com/extendedclip/deluxemenus/requirement/HasPermissionsRequirement.java

@@ -0,0 +1,32 @@
+package com.extendedclip.deluxemenus.requirement;
+
+import com.extendedclip.deluxemenus.menu.MenuHolder;
+
+import java.util.List;
+
+public class HasPermissionsRequirement extends Requirement {
+
+    private final List<String> permissions;
+    private final int minimum;
+    private final boolean invert;
+
+    public HasPermissionsRequirement(List<String> permissions, int minimum, boolean invert) {
+        this.permissions = permissions;
+        this.minimum = minimum;
+        this.invert = invert;
+    }
+
+    @Override
+    public boolean evaluate(MenuHolder holder) {
+        final int count = permissions.stream()
+                .map(holder::setPlaceholdersAndArguments)
+                .map(holder.getViewer()::hasPermission)
+                .mapToInt(hasPermission -> hasPermission ? 1 : 0)
+                .sum();
+        return invert
+                ? count + minimum <= permissions.size()
+                : count >= minimum;
+    }
+
+
+}

src/main/java/com/extendedclip/deluxemenus/requirement/RequirementType.java

@@ -41,6 +41,12 @@ public enum RequirementType {
       Arrays.asList("!has permission", "!has perm", "!haspermission", "!hasperm", "!perm"),
       "Checks if a player does not have a specific permission",
       Collections.singletonList("permission")),
+  HAS_PERMISSIONS(Arrays.asList("has permissions", "has perms", "haspermissions", "hasperms", "perms"),
+          "Checks if a player has a set amount of permissions", Collections.singletonList("permissions")),
+  DOES_NOT_HAVE_PERMISSIONS(
+          Arrays.asList("!has permissions", "!has perms", "!haspermissions", "!hasperms", "!perms"),
+          "Checks if a player does not have a set amount of permission",
+          Arrays.asList("permissions", "minimum")),
   STRING_CONTAINS(Arrays.asList("string contains", "stringcontains", "contains"),
       "Checks if a string contains another string", Arrays.asList("input", "output")),
   STRING_DOES_NOT_CONTAIN(Arrays.asList("!string contains", "!stringcontains", "!contains"),