/*
 * Copyright (c) 2019, 2021, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2.0,
 * as published by the Free Software Foundation.
 *
 * This program is also distributed with certain software (including
 * but not limited to OpenSSL) that is licensed under separate terms, as
 * designated in a particular file or component or in included license
 * documentation.  The authors of MySQL hereby grant you an additional
 * permission to link the program and your derivative works with the
 * separately licensed software that they have included with MySQL.
 * This program is distributed in the hope that it will be useful,  but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 * the GNU General Public License, version 2.0, for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef MODULES_ADMINAPI_COMMON_GLOBAL_TOPOLOGY_MANAGER_H_
#define MODULES_ADMINAPI_COMMON_GLOBAL_TOPOLOGY_MANAGER_H_

#include <list>
#include <memory>
#include <string>
#include "modules/adminapi/common/async_replication_options.h"
#include "modules/adminapi/common/global_topology.h"
#include "modules/adminapi/common/metadata_storage.h"
#include "mysqlshdk/libs/mysql/instance.h"

namespace mysqlsh {
namespace dba {

class Instance;

// Class that encapsulates topology level operations for replicated clusters
// including discovery, sanity checks, change operations and repairing
// There should be one instance in the whole shell per replicated cluster.
// Multiple clusters and replicasets should be handled in the same instance.
class Global_topology_manager {
 public:
  virtual ~Global_topology_manager() {}

  virtual void validate_adopt_cluster(const topology::Node **out_primary) = 0;

  virtual void validate_add_replica(
      const topology::Node *master_node, mysqlshdk::mysql::IInstance *instance,
      const Async_replication_options &repl_options) = 0;

  virtual void validate_rejoin_replica(
      mysqlshdk::mysql::IInstance *instance) = 0;

  virtual void validate_remove_replica(mysqlshdk::mysql::IInstance *master,
                                       mysqlshdk::mysql::IInstance *instance,
                                       bool force, bool *out_repl_working) = 0;

  virtual void validate_switch_primary(
      mysqlshdk::mysql::IInstance *master,
      mysqlshdk::mysql::IInstance *promoted,
      const std::list<std::shared_ptr<Instance>> &instances) = 0;

  virtual void validate_force_primary(
      mysqlshdk::mysql::IInstance *master,
      const std::list<std::shared_ptr<Instance>> &instances) = 0;

  virtual Global_topology_type get_topology_type() const = 0;

  topology::Global_topology *topology() const { return m_topology.get(); }

 protected:
  Global_topology_manager(uint64_t /*rclid*/,
                          std::unique_ptr<topology::Global_topology> topology)
      : m_topology(std::move(topology)) {}

  std::unique_ptr<topology::Global_topology> m_topology;
  std::string m_domain_name;

  bool sanity_check();
};

}  // namespace dba
}  // namespace mysqlsh

#endif  // MODULES_ADMINAPI_COMMON_GLOBAL_TOPOLOGY_MANAGER_H_
