// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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 <fmt/format.h>

#include <stdint.h>

#include <memory>

#include <optional>

#include <string>

#include <utility>

#include <vector>

#include "common/status.h"

#include "io/fs/file_system.h"

#include "io/fs/remote_file_system.h"

namespace doris {

class RowsetMeta;

namespace cloud {

class StorageVaultPB_PathFormat;

}

struct StoragePolicy {

    std::string name;

    int64_t version;

    int64_t cooldown_datetime;

    int64_t cooldown_ttl;

    int64_t resource_id;

    std::string to_string() const {

        return fmt::format(

                "(name={}, version={}, cooldown_date_time={}, cooldown_ttl={}, resource_id={})",

                name, version, cooldown_datetime, cooldown_ttl, resource_id);

    }

};

using StoragePolicyPtr = std::shared_ptr<StoragePolicy>;

// return nullptr if not found

StoragePolicyPtr get_storage_policy(int64_t id);

// always success

void put_storage_policy(int64_t id, StoragePolicyPtr policy);

void delete_storage_policy(int64_t id);

// return [id, version] of all storage policies

std::vector<std::pair<int64_t, int64_t>> get_storage_policy_ids();

struct StorageResource {

    io::RemoteFileSystemSPtr fs;

    int64_t path_version = 0;

    std::function<int64_t(int64_t)> shard_fn;

    StorageResource() = default;

    StorageResource(io::RemoteFileSystemSPtr fs_) : fs(std::move(fs_)) {}

    StorageResource(io::RemoteFileSystemSPtr, const cloud::StorageVaultPB_PathFormat&);

    std::string remote_segment_path(int64_t tablet_id, std::string_view rowset_id,

                                    int64_t seg_id) const;

    std::string remote_segment_path(const RowsetMeta& rowset, int64_t seg_id) const;

    std::string remote_tablet_path(int64_t tablet_id) const;

    std::string remote_delete_bitmap_path(int64_t tablet_id, std::string_view rowset_id) const;

    std::string remote_idx_v1_path(const RowsetMeta& rowset, int64_t seg_id, int64_t index_id,

                                   std::string_view index_suffix) const;

    std::string remote_idx_v2_path(const RowsetMeta& rowset, int64_t seg_id) const;

    std::string cooldown_tablet_meta_path(int64_t tablet_id, int64_t replica_id,

                                          int64_t cooldown_term) const;

    // Static function to parse tablet_id from remote segment path

    static std::optional<int64_t> parse_tablet_id_from_path(const std::string& path);

};

// return nullptr if not found

io::RemoteFileSystemSPtr get_filesystem(const std::string& resource_id);

// Get `StorageResource` and its version

std::optional<std::pair<StorageResource, int64_t>> get_storage_resource(int64_t resource_id);

std::optional<std::pair<StorageResource, int64_t>> get_storage_resource(

        const std::string& resource_id);

Result<StorageResource> get_resource_by_storage_policy_id(int64_t storage_policy_id);

// always success

void put_storage_resource(std::string resource_id, StorageResource resource, int64_t version);

// always success

void put_storage_resource(int64_t resource_id, StorageResource resource, int64_t version);

void delete_storage_resource(int64_t resource_id);

void clear_storage_resource();

// return [id, version] of all resources

std::vector<std::pair<std::string, int64_t>> get_storage_resource_ids();

} // namespace doris