File permission_attachment.h¶

File List > endstone > permissions > permission_attachment.h
// Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <algorithm>
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
#include <utility>

#include "endstone/permissions/permissible.h"
#include "endstone/permissions/permission.h"
#include "endstone/util/pointers.h"

namespace endstone {

using PermissionRemovedExecutor = std::function<void(const NotNull<PermissionAttachment> &)>;

class PermissionAttachment : public std::enable_shared_from_this<PermissionAttachment> {
public:
    PermissionAttachment(Plugin &plugin, const NotNull<Permissible> &permissible)
        : permissible_(permissible.get()), plugin_(plugin)
    {
    }

    [[nodiscard]] Plugin &getPlugin() const { return plugin_; }

    void setRemovalCallback(PermissionRemovedExecutor ex) { removed_ = std::move(ex); }

    [[nodiscard]] PermissionRemovedExecutor getRemovalCallback() const { return removed_; }

    [[nodiscard]] Nullable<Permissible> getPermissible() const { return permissible_.lock(); }

    [[nodiscard]] std::unordered_map<std::string, bool> getPermissions() const { return permissions_; }

    void setPermission(std::string name, bool value)
    {
        std::transform(name.begin(), name.end(), name.begin(), [](unsigned char c) { return std::tolower(c); });
        permissions_[name] = value;
        if (const auto permissible = permissible_.lock()) {
            permissible->recalculatePermissions();
        }
    }

    void setPermission(const NotNull<Permission> &perm, bool value) { setPermission(perm->getName(), value); }

    void unsetPermission(std::string name)
    {
        std::transform(name.begin(), name.end(), name.begin(), [](unsigned char c) { return std::tolower(c); });
        permissions_.erase(name);
        if (const auto permissible = permissible_.lock()) {
            permissible->recalculatePermissions();
        }
    }

    void unsetPermission(const NotNull<Permission> &perm) { unsetPermission(perm->getName()); }

    bool remove()
    {
        const auto self = weak_from_this().lock();
        const auto permissible = permissible_.lock();
        if (!self || !permissible) {
            return false;
        }
        return permissible->removeAttachment(self);
    }

private:
    PermissionRemovedExecutor removed_;
    std::unordered_map<std::string, bool> permissions_;
    std::weak_ptr<Permissible> permissible_;
    Plugin &plugin_;
};

}  // namespace endstone