/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * 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.
 */

#ifndef BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_ANS_INCLUDE_NOTIFICATION_RDB_DATA_MGR_H
#define BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_ANS_INCLUDE_NOTIFICATION_RDB_DATA_MGR_H

#include <mutex>
#include <set>
#include <vector>
#include <string>
#include <map>
#include <unordered_map>
#include "notification_constant.h"
#include "rdb_errno.h"
#include "rdb_helper.h"
#include "rdb_open_callback.h"
#include "rdb_store_config.h"

namespace OHOS {
namespace Notification {
struct NotificationRdbConfig {
    std::string dbPath { NotificationConstant::NOTIFICATION_RDB_PATH };
    std::string dbName { NotificationConstant::NOTIFICATION_RDB_NAME };
    std::string tableName { NotificationConstant::NOTIFICATION_RDB_TABLE_NAME };
    std::string journalMode { NotificationConstant::NOTIFICATION_JOURNAL_MODE };
    std::string syncMode { NotificationConstant::NOTIFICATION_SYNC_MODE };
    int32_t version { NotificationConstant::NOTIFICATION_RDB_VERSION };
};
class RdbStoreDataCallBackNotificationStorage : public NativeRdb::RdbOpenCallback {
public:

    RdbStoreDataCallBackNotificationStorage(const NotificationRdbConfig &notificationRdbConfig);

    virtual ~RdbStoreDataCallBackNotificationStorage();

    int32_t OnCreate(NativeRdb::RdbStore &rdbStore) override;

    int32_t OnUpgrade(NativeRdb::RdbStore &rdbStore, int32_t oldVersion, int32_t newVersion) override;

    int32_t OnDowngrade(NativeRdb::RdbStore &rdbStore, int currentVersion, int targetVersion) override;

    int32_t OnOpen(NativeRdb::RdbStore &rdbStore) override;

    int32_t onCorruption(std::string databaseFile) override;
private:
    NotificationRdbConfig notificationRdbConfig_;
    bool hasTableInit_ = false;
};

/**
 * @class NotificationDataMgr
 * Notification Data Manager.
 */
class NotificationDataMgr {
public:

    NotificationDataMgr(const NotificationRdbConfig &notificationRdbConfig);

    int32_t Init();

    int32_t Destroy();

    /**
     * @brief Insert data in DB.
     * @param key The data Key.
     * @param userId Optional, Indicate which table to insert data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t InsertData(const std::string &key, const std::string &value, const int32_t &userId = -1);

    /**
     * @brief Insert data in DB.
     * @param key The data Key.
     * @param userId Optional, Indicate which table to insert data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t InsertData(const std::string &key, const std::vector<uint8_t> &value, const int32_t &userId = -1);

    /**
     * @brief Insert batch data in DB.
     * @param key The data Key.
     * @param userId Optional, Indicate which table to insert data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t InsertBatchData(const std::unordered_map<std::string, std::string> &values, const int32_t &userId = -1);

    /**
     * @brief Delete data in DB.
     * @param key The data Key.
     * @param userId Optional, Indicate which table to delete data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t DeleteData(const std::string &key, const int32_t &userId = -1);

    /**
     * @brief Delete batch data in DB.
     * @param key The data Key.
     * @param userId Optional, Indicate which table to delete data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t DeleteBathchData(const std::vector<std::string> &keys, const int32_t &userId = -1);

    /**
     * @brief Query data from DB.
     * @param userId Optional, Indicate which table to query data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t QueryData(const std::string &key, std::string &value, const int32_t &userId = -1);

    /**
     * @brief Query data from DB.
     * @param userId Optional, Indicate which table to query data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t QueryData(const std::string &key, std::vector<uint8_t> &value, const int32_t &userId = -1);

    /**
     * @brief Query data begin whith key in DB.
     * @param userId Optional, Indicate which table to query data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t QueryDataBeginWithKey(const std::string &key, std::unordered_map<std::string, std::string> &values,
        const int32_t &userId = -1);

    /**
     * @brief Query all data in DB.
     * @param userId Optional, Indicate which table to query data.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t QueryAllData(std::unordered_map<std::string, std::string> &values, const int32_t &userId = -1);

    /**
     * @brief Delete the special user-table in DB.
     * @param userId Optional, Indicate which table to delete.
     * @return Returns ERR_OK on success, others on failure.
     */
    int32_t DropUserTable(const int32_t userId);

private:
    int32_t GetUserTableName(const int32_t &userId, std::string &tableName);
    std::vector<std::string> GenerateOperatedTables(const int32_t &userId);
    int32_t DeleteData(const std::string tableName, const std::string key, int32_t &rowId);
    int32_t QueryData(const std::string tableName, const std::string key, std::string &value);
    int32_t QueryData(const std::string tableName, const std::string key, std::vector<uint8_t> &value);
    int32_t QueryDataBeginWithKey(const std::string tableName, const std::string key,
        std::unordered_map<std::string, std::string> &values);
    int32_t QueryAllData(const std::string tableName, std::unordered_map<std::string, std::string> &datas);
    int32_t InitCreatedTables();
    int32_t RestoreForMasterSlaver();

private:
    NotificationRdbConfig notificationRdbConfig_;
    std::shared_ptr<NativeRdb::RdbStore> rdbStore_;
    mutable std::mutex rdbStorePtrMutex_;
    std::set<std::string> createdTables_;
    mutable std::mutex createdTableMutex_;
};
} // namespace Notification
} // namespace OHOS

#endif // BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_ANS_INCLUDE_NOTIFICATION_RDB_DATA_MGR_H