1/*
2 * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef OHOS_RESTOOL_RESOURCE_TABLE_H
17#define OHOS_RESTOOL_RESOURCE_TABLE_H
18
19#include <fstream>
20#include <memory>
21#include <sstream>
22#include "resource_item.h"
23#include "restool_errors.h"
24
25namespace OHOS {
26namespace Global {
27namespace Restool {
28class ResourceTable {
29public:
30    ResourceTable();
31    virtual ~ResourceTable();
32    uint32_t CreateResourceTable();
33    uint32_t CreateResourceTable(const std::map<int64_t, std::vector<std::shared_ptr<ResourceItem>>> &items);
34    uint32_t LoadResTable(const std::string path, std::map<int64_t, std::vector<ResourceItem>> &resInfos);
35private:
36    struct TableData {
37        uint32_t id;
38        ResourceItem resourceItem;
39    };
40
41    struct IndexHeader {
42        int8_t version[VERSION_MAX_LEN];
43        uint32_t fileSize;
44        uint32_t limitKeyConfigSize;
45    };
46
47    struct LimitKeyConfig {
48        int8_t keyTag[TAG_LEN] = {'K', 'E', 'Y', 'S'};
49        uint32_t offset; // IdSet file address offset
50        uint32_t keyCount; // KeyParam count
51        std::vector<int32_t> data;
52    };
53
54    struct IdSet {
55        int8_t idTag[TAG_LEN] = {'I', 'D', 'S', 'S'};
56        uint32_t idCount;
57        std::map<uint32_t, uint32_t> data; // pair id and offset
58    };
59
60    struct RecordItem {
61        uint32_t size;
62        int32_t resType;
63        uint32_t id;
64    };
65    uint32_t SaveToResouorceIndex(const std::map<std::string, std::vector<TableData>> &configs) const;
66    uint32_t CreateIdDefined(const std::map<int64_t, std::vector<ResourceItem>> &allResource) const;
67    bool InitIndexHeader(IndexHeader &indexHeader, uint32_t count) const;
68    bool Prepare(const std::map<std::string, std::vector<TableData>> &configs,
69                 std::map<std::string, LimitKeyConfig> &limitKeyConfigs,
70                 std::map<std::string, IdSet> &idSets, uint32_t &pos) const;
71    bool SaveRecordItem(const std::map<std::string, std::vector<TableData>> &configs, std::ostringstream &out,
72                        std::map<std::string, IdSet> &idSets, uint32_t &pos) const;
73    void SaveHeader(const IndexHeader &indexHeader, std::ostringstream &out) const;
74    void SaveLimitKeyConfigs(const std::map<std::string, LimitKeyConfig> &limitKeyConfigs,
75                             std::ostringstream &out) const;
76    void SaveIdSets(const std::map<std::string, IdSet> &idSets, std::ostringstream &out) const;
77    bool ReadFileHeader(std::ifstream &in, IndexHeader &indexHeader, uint64_t &pos, uint64_t length) const;
78    bool ReadLimitKeys(std::ifstream &in, std::map<int64_t, std::vector<KeyParam>> &limitKeys,
79                       uint32_t count, uint64_t &pos, uint64_t length) const;
80    bool ReadIdTables(std::ifstream &in, std::map<int64_t, std::pair<int64_t, int64_t>> &datas,
81                      uint32_t count, uint64_t &pos, uint64_t length) const;
82    bool ReadDataRecordPrepare(std::ifstream &in, RecordItem &record, uint64_t &pos, uint64_t length) const;
83    bool ReadDataRecordStart(std::ifstream &in, RecordItem &record,
84                             const std::map<int64_t, std::vector<KeyParam>> &limitKeys,
85                             const std::map<int64_t, std::pair<int64_t, int64_t>> &datas,
86                             std::map<int64_t, std::vector<ResourceItem>> &resInfos) const;
87    std::string indexFilePath_;
88    std::string idDefinedPath_;
89};
90}
91}
92}
93#endif