etm-powersync-plugins/everest/jsonrpc/everestjsonrpcclient.cpp
2025-06-25 15:31:29 +02:00

238 lines
9.3 KiB
C++

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#include "everestjsonrpcclient.h"
#include "extern-plugininfo.h"
#include <QJsonDocument>
#include <QJsonParseError>
EverestJsonRpcClient::EverestJsonRpcClient(QObject *parent)
: QObject{parent},
m_interface{new EverestJsonRpcInterface(this)}
{
connect(m_interface, &EverestJsonRpcInterface::dataReceived, this, &EverestJsonRpcClient::processDataPacket);
connect(m_interface, &EverestJsonRpcInterface::connectedChanged, this, [this](bool connected){
qCDebug(dcEverest()) << "Interface is" << (connected ? "now connected" : "not connected any more");
if (connected) {
// The interface is connected, fetch initial data and mark the client as available if successfull,
// otherwise emit connection error signal and close the connection
EverestJsonRpcReply *reply = apiHello();
connect(reply, &EverestJsonRpcReply::finished, reply, &EverestJsonRpcReply::deleteLater);
connect(reply, &EverestJsonRpcReply::finished, this, [this, reply](){
qCDebug(dcEverest()) << "Reply finished" << m_interface->serverUrl().toString() << reply->method();
if (reply->error()) {
qCWarning(dcEverest()) << "JsonRpc reply finished with error" << reply->method() << reply->error();
disconnectFromServer();
emit connectionErrorOccurred();
return;
}
// Verify data format and API version
QVariantMap result = reply->response().value("result").toMap();
if (!result.contains("api_version") || !result.contains("everest_version") || !result.contains("charger_info")) {
qCWarning(dcEverest()) << "Missing expected properties in JsonRpc response" << reply->method();
disconnectFromServer();
emit connectionErrorOccurred();
return;
}
//D | Everest: <-- {"id":0,"jsonrpc":"2.0","result":{"api_version":"0.0.1","authentication_required":false,"charger_info":{"firmware_version":"unknown","model":"unknown","serial":"unknown","vendor":"unknown"},"everest_version":""}
m_apiVersion = result.value("api_version").toString();
EverestJsonRpcReply *reply = chargePointGetEVSEInfos();
connect(reply, &EverestJsonRpcReply::finished, reply, &EverestJsonRpcReply::deleteLater);
connect(reply, &EverestJsonRpcReply::finished, this, [this, reply](){
qCDebug(dcEverest()) << "Reply finished" << m_interface->serverUrl().toString() << reply->method()
<< qUtf8Printable(QJsonDocument::fromVariant(reply->response()).toJson(QJsonDocument::Indented));
if (reply->error()) {
qCWarning(dcEverest()) << "JsonRpc reply finished with error" << reply->method() << reply->error();
disconnectFromServer();
emit connectionErrorOccurred();
return;
}
QVariantMap result = reply->response().value("result").toMap();
QString errorString = result.value("error").toString();
if (errorString != "NoError") {
qCWarning(dcEverest()) << "Error requesting" << reply->method() << errorString;
disconnectFromServer();
emit connectionErrorOccurred();
return;
}
// TODO: init infos
// Init data, we are done and connected.
if (!m_available) {
m_available = true;
emit availableChanged(m_available);
}
});
});
} else {
// Client disconnected. Clean up any pending replies
qCDebug(dcEverest()) << "Lost connection to the server. Finish any pending replies ...";
foreach (EverestJsonRpcReply *reply, m_replies) {
reply->finishReply(EverestJsonRpcReply::ErrorConnectionError);
}
if (m_available) {
m_available = false;
emit availableChanged(m_available);
}
}
});
}
QUrl EverestJsonRpcClient::serverUrl()
{
return m_interface->serverUrl();
}
bool EverestJsonRpcClient::available() const
{
return m_available;
}
EverestJsonRpcReply *EverestJsonRpcClient::apiHello()
{
EverestJsonRpcReply *reply = new EverestJsonRpcReply(m_commandId, "API.Hello", QVariantMap(), this);
qCDebug(dcEverest()) << "Calling" << reply->method();
sendRequest(reply);
return reply;
}
EverestJsonRpcReply *EverestJsonRpcClient::chargePointGetEVSEInfos()
{
EverestJsonRpcReply *reply = new EverestJsonRpcReply(m_commandId, "ChargePoint.GetEVSEInfos", QVariantMap(), this);
qCDebug(dcEverest()) << "Calling" << reply->method();
sendRequest(reply);
return reply;
}
EverestJsonRpcReply *EverestJsonRpcClient::evseGetInfo()
{
EverestJsonRpcReply *reply = new EverestJsonRpcReply(m_commandId, "EVSE.GetInfo", QVariantMap(), this);
qCDebug(dcEverest()) << "Calling" << reply->method();
sendRequest(reply);
return reply;
}
EverestJsonRpcReply *EverestJsonRpcClient::evseGetStatus(int evseIndex)
{
QVariantMap params;
params.insert("evse_index", evseIndex);
EverestJsonRpcReply *reply = new EverestJsonRpcReply(m_commandId, "EVSE.GetStatus", params, this);
qCDebug(dcEverest()) << "Calling" << reply->method();
sendRequest(reply);
return reply;
}
EverestJsonRpcReply *EverestJsonRpcClient::evseGetHardwareCapabilities(int evseIndex)
{
QVariantMap params;
params.insert("evse_index", evseIndex);
EverestJsonRpcReply *reply = new EverestJsonRpcReply(m_commandId, "EVSE.GetStatus", params, this);
qCDebug(dcEverest()) << "Calling" << reply->method();
sendRequest(reply);
return reply;
}
void EverestJsonRpcClient::connectToServer(const QUrl &serverUrl)
{
m_interface->connectServer(serverUrl);
}
void EverestJsonRpcClient::disconnectFromServer()
{
m_interface->disconnectServer();
}
void EverestJsonRpcClient::sendRequest(EverestJsonRpcReply *reply)
{
QVariantMap requestMap = reply->requestMap();
QByteArray data = QJsonDocument::fromVariant(requestMap).toJson(QJsonDocument::Compact) + '\n';
qCDebug(dcEverest()) << "-->" << m_interface->serverUrl().toString() << qUtf8Printable(data);
m_interface->sendData(data);
m_replies.insert(m_commandId, reply);
m_commandId++;
reply->startWaiting();
}
void EverestJsonRpcClient::processDataPacket(const QByteArray &data)
{
qCDebug(dcEverest()) << "<--" << m_interface->serverUrl().toString() << qUtf8Printable(data);
QJsonParseError error;
QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &error);
if (error.error != QJsonParseError::NoError) {
qCWarning(dcEverest()) << "Invalid JSON data recived" << m_interface->serverUrl().toString() << error.errorString();
return;
}
QVariantMap dataMap = jsonDoc.toVariant().toMap();
if (!dataMap.contains("id") || dataMap.value("jsonrpc").toString() != "2.0") {
qCWarning(dcEverest()) << "Received valid JSON data but does not seem to be a JSON RPC 2.0 format" << m_interface->serverUrl().toString() << qUtf8Printable(data);
return;
}
int commandId = dataMap.value("id").toInt();
EverestJsonRpcReply *reply = m_replies.take(commandId);
if (reply) {
reply->setResponse(dataMap);
// Verify if we received a json rpc error
if (dataMap.contains("error")) {
reply->finishReply(EverestJsonRpcReply::ErrorJsonRpcError);
} else {
reply->finishReply();
}
return;
} else {
// Data without reply, check if this is a notification
}
}