1 /*
2  * Copyright (c) 2023-2023 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 CONFIG_PARSER_BASE_H
17 #define CONFIG_PARSER_BASE_H
18 
19 #include <json/json.h>
20 #include <mutex>
21 #include <optional>
22 #include <string>
23 
24 #include "calculation_config_parser.h"
25 #include "brightness_config_parser.h"
26 
27 namespace OHOS {
28 namespace DisplayPowerMgr {
29 class ConfigParserBase {
30 public:
31     ConfigParserBase(const ConfigParserBase&) = delete;
32     ConfigParserBase& operator=(const ConfigParserBase&) = delete;
33     ConfigParserBase(ConfigParserBase&&) = delete;
34     ConfigParserBase& operator=(ConfigParserBase&&) = delete;
35 
36     static ConfigParserBase& Get();
37 
38     void Initialize();
39     const std::string LoadConfigPath(int displayId, const std::string& configName) const;
40     const Json::Value LoadConfigRoot(int displayId, const std::string& configName) const;
41     void ParsePointXy(const Json::Value& root, const std::string& name, std::vector<PointXy>& data) const;
42     const std::string PointXyToString(const std::string& name, const std::vector<PointXy>& data) const;
43     void ParseScreenData(const Json::Value& root, const std::string& name, std::unordered_map<int, ScreenData>& data,
44        const std::string paramName) const;
45     const std::string ScreenDataToString(const std::string& name, const std::unordered_map<int, ScreenData>& data,
46        const std::string paramName) const;
47 
48 private:
49     struct ConfigInfo {
50         std::string panelName{};
51         std::string panelVersion{};
52     };
53 
54     ConfigParserBase() = default;
55     virtual ~ConfigParserBase() = default;
56 
57     std::unordered_map<int, ConfigInfo>::iterator GetDispIter(int displayId);
58     std::unordered_map<int, ConfigInfo>::const_iterator GetConstDispIter(int displayId) const;
59 
60     mutable std::mutex mLock{};
61     // Guarded by mLock begin
62     std::atomic<bool> mIsInitialized{false};
63     std::unordered_map<int, ConfigInfo> mConfigInfo{};
64 };
65 } // namespace DisplayPowerMgr
66 } // namespace OHOS
67 #endif // CONFIG_PARSER_BASE_H
68