1/*
2 * Copyright (c) 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#include "SystemCapability.h"
17
18#include <fstream>
19
20#include "CommandParser.h"
21#include "FileSystem.h"
22#include "PreviewerEngineLog.h"
23#include "JsonReader.h"
24
25SystemCapability& SystemCapability::GetInstance()
26{
27    static SystemCapability instance;
28    return instance;
29}
30
31bool SystemCapability::HasSystemCapability(const char* sysCapName)
32{
33    std::string capName = sysCapName;
34    if (capabilities.find(sysCapName) == capabilities.end()) {
35        return false;
36    }
37    return capabilities[sysCapName];
38}
39
40SystemCapability::SystemCapability()
41{
42    ReadCapability();
43}
44
45void SystemCapability::ReadCapability()
46{
47    std::string separator = FileSystem::GetSeparator();
48    std::string filePath = FileSystem::GetApplicationPath() + separator + ".." + separator + "config" + separator +
49                           "system_capability.json";
50    std::ifstream inFile(filePath);
51    if (!inFile.is_open()) {
52        ELOG("Open capability file failed.");
53    }
54    std::string jsonStr((std::istreambuf_iterator<char>(inFile)), std::istreambuf_iterator<char>());
55    inFile.close();
56
57    Json2::Value val = JsonReader::ParseJsonData2(jsonStr);
58    if (val.IsNull()) {
59        std::string message = JsonReader::GetErrorPtr();
60        ELOG("Failed to parse the capability, errors: %s", message.c_str());
61    }
62    if (val["systemCapability"].IsNull() || !val["systemCapability"].IsArray()) {
63        ELOG("Empty systemCapability json object: %s", val["systemCapability"].ToStyledString().c_str());
64        return;
65    }
66    Json2::Value val2 = val["systemCapability"];
67    for (int i = 0; i < val2.GetArraySize(); i++) {
68        Json2::Value cap = val2.GetArrayItem(i);
69        if (!cap.IsMember("name") || !cap.IsMember("register-on-startup")) {
70            ELOG("Invalid systemCapability json object");
71        }
72        if (!cap["register-on-startup"].IsBool()) {
73            ELOG("Invalid systemCapability json object");
74        }
75        capabilities[cap["name"].AsString()] = cap["register"].AsBool();
76    }
77}
78