64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
#include "thing_manager.h"
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#include <esp_log.h>
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#define TAG "ThingManager"
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namespace iot {
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void ThingManager::AddThing(Thing* thing) {
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things_.push_back(thing);
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}
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std::string ThingManager::GetDescriptorsJson() {
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std::string json_str = "[";
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for (auto& thing : things_) {
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json_str += thing->GetDescriptorJson() + ",";
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}
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if (json_str.back() == ',') {
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json_str.pop_back();
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}
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json_str += "]";
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return json_str;
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}
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bool ThingManager::GetStatesJson(std::string& json, bool delta) {
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if (!delta) {
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last_states_.clear();
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}
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bool changed = false;
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json = "[";
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// 枚举thing，获取每个thing的state，如果发生变化，则更新，保存到last_states_
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// 如果delta为true，则只返回变化的部分
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for (auto& thing : things_) {
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std::string state = thing->GetStateJson();
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if (delta) {
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// 如果delta为true，则只返回变化的部分
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auto it = last_states_.find(thing->name());
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if (it != last_states_.end() && it->second == state) {
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continue;
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}
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changed = true;
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last_states_[thing->name()] = state;
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}
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json += state + ",";
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}
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if (json.back() == ',') {
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json.pop_back();
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}
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json += "]";
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return changed;
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}
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void ThingManager::Invoke(const cJSON* command) {
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auto name = cJSON_GetObjectItem(command, "name");
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for (auto& thing : things_) {
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if (thing->name() == name->valuestring) {
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thing->Invoke(command);
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return;
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}
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}
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}
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} // namespace iot
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