From 8d1cda13b31501d7f54558feba74ac39c7e2cb26 Mon Sep 17 00:00:00 2001
From: Roy Qu <royqh1979@gmail.com>
Date: Sat, 9 Mar 2024 13:58:32 +0800
Subject: [PATCH] work save: DAP protocol: Create / parse request message

---
 RedPandaIDE/RedPandaIDE.pro          |  2 ++
 RedPandaIDE/debugger/dapprotocol.cpp | 47 ++++++++++++++++++++++++++++
 RedPandaIDE/debugger/dapprotocol.h   | 43 +++++++++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 RedPandaIDE/debugger/dapprotocol.cpp
 create mode 100644 RedPandaIDE/debugger/dapprotocol.h

diff --git a/RedPandaIDE/RedPandaIDE.pro b/RedPandaIDE/RedPandaIDE.pro
index b52481a9..aca74fd6 100644
--- a/RedPandaIDE/RedPandaIDE.pro
+++ b/RedPandaIDE/RedPandaIDE.pro
@@ -129,6 +129,7 @@ SOURCES += \
     debugger/debugger.cpp \
     debugger/gdbmidebugger.cpp \
     debugger/gdbmiresultparser.cpp \
+    debugger/dapprotocol.cpp \
     cpprefacter.cpp \
     parser/cppparser.cpp \
     parser/cpppreprocessor.cpp \
@@ -259,6 +260,7 @@ HEADERS += \
     debugger/debugger.h \
     debugger/gdbmidebugger.h \
     debugger/gdbmiresultparser.h \
+    debugger/dapprotocol.h \    
     cpprefacter.h \
     customfileiconprovider.h \
     parser/cppparser.h \
diff --git a/RedPandaIDE/debugger/dapprotocol.cpp b/RedPandaIDE/debugger/dapprotocol.cpp
new file mode 100644
index 00000000..626ed48c
--- /dev/null
+++ b/RedPandaIDE/debugger/dapprotocol.cpp
@@ -0,0 +1,47 @@
+#include "dapprotocol.h"
+#include <QJsonDocument>
+#include <QJsonObject>
+
+QString createDAPRequestMessage(qint64 seq, const QString &command, const QVariantMap &arguments)
+{
+    QJsonObject obj;
+    obj["seq"]=seq;
+    obj["type"]="request";
+    obj["command"]=command;
+    if (!arguments.isEmpty()) {
+        obj["arguments"]= QJsonObject::fromVariantMap(arguments);
+    }
+    QJsonDocument doc;
+    doc.setObject(obj);
+    QString contentPart = doc.toJson(QJsonDocument::JsonFormat::Indented);
+    QString message = QString("Content-Length: %1\r\n").arg(contentPart.length())+contentPart;
+    return message;
+}
+
+DAPRequest parseDAPRequestMessage(const QByteArray &contentPart)
+{
+    QJsonParseError error;
+    QJsonDocument doc = QJsonDocument::fromJson(contentPart, &error);
+    if (error.error != QJsonParseError::NoError) {
+        throw DAPMessageError(QObject::tr("Failed to parse json content: %1").arg(QString::fromUtf8(contentPart)));
+    }
+    QJsonObject obj = doc.object();
+    DAPRequest req;
+    if (!obj.contains("seq")) {
+        throw DAPMessageError(QObject::tr("The request message don't have '%1' field!").arg("seq"));
+    }
+    req.seq = obj["seq"].toDouble();
+    req.type = "request";
+    if (!obj.contains("command")) {
+        throw DAPMessageError(QObject::tr("The request message don't have '%1' field!").arg("command"));
+    }
+    req.command = obj["command"].toString();
+    if (obj.contains("arguments"))
+    req.arguments = obj["arguments"].toObject().toVariantMap();
+    return req;
+}
+
+DAPMessageError::DAPMessageError(const QString &reason) : BaseError{reason}
+{
+
+}
diff --git a/RedPandaIDE/debugger/dapprotocol.h b/RedPandaIDE/debugger/dapprotocol.h
new file mode 100644
index 00000000..811d5d2b
--- /dev/null
+++ b/RedPandaIDE/debugger/dapprotocol.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2020-2024 Roy Qu (royqh1979@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef DAP_PROTOCAL_H
+#define DAP_PROTOCAL_H
+#include <QString>
+#include <QMap>
+#include <QVariant>
+#include <qt_utils/utils.h>
+
+class DAPMessageError : public BaseError {
+public:
+    explicit FileError(const QString& reason);
+};
+
+struct DAPProtocolMessage{
+    qint64 seq;
+    QString type;
+};
+
+struct DAPRequest: public DAPProtocolMessage {
+    QString command;
+    QVariantMap arguments;
+};
+
+QString createDAPRequestMessage(
+        qint64 seq, const QString &command, const QVariantMap& arguments);
+
+DAPRequest parseDAPRequestMessage(const QByteArray& contentPart);
+#endif