Sync from quickmods

logic/MMCJson.cpp

@@ -1,13 +1,26 @@
 #include "MMCJson.h"
+
 #include <QString>
+#include <QUrl>
 #include <QStringList>
 #include <math.h>
 
+QJsonDocument MMCJson::parseDocument(const QByteArray &data, const QString &what)
+{
+	QJsonParseError error;
+	QJsonDocument doc = QJsonDocument::fromJson(data, &error);
+	if (error.error != QJsonParseError::NoError)
+	{
+		throw JSONValidationError(what + " is not valid JSON: " + error.errorString() + " at " + error.offset);
+	}
+	return doc;
+}
+
 bool MMCJson::ensureBoolean(const QJsonValue val, const QString what)
 {
 	if (!val.isBool())
 		throw JSONValidationError(what + " is not boolean");
-	return val.isBool();
+	return val.toBool();
 }
 
 QJsonValue MMCJson::ensureExists(QJsonValue val, const QString what)
@@ -24,6 +37,15 @@ QJsonArray MMCJson::ensureArray(const QJsonValue val, const QString what)
 	return val.toArray();
 }
 
+QJsonArray MMCJson::ensureArray(const QJsonDocument &val, const QString &what)
+{
+	if (!val.isArray())
+	{
+		throw JSONValidationError(what + " is not an array");
+	}
+	return val.array();
+}
+
 double MMCJson::ensureDouble(const QJsonValue val, const QString what)
 {
 	if (!val.isDouble())
@@ -60,9 +82,36 @@ QString MMCJson::ensureString(const QJsonValue val, const QString what)
 	return val.toString();
 }
 
+QUrl MMCJson::ensureUrl(const QJsonValue &val, const QString &what)
+{
+	const QUrl url = QUrl(ensureString(val, what));
+	if (!url.isValid())
+	{
+		throw JSONValidationError(what + " is not an url");
+	}
+	return url;
+}
+
+QJsonDocument MMCJson::parseFile(const QString &filename, const QString &what)
+{
+	QFile f(filename);
+	if (!f.open(QFile::ReadOnly))
+	{
+		throw FileOpenError(f);
+	}
+	return parseDocument(f.readAll(), what);
+}
+
+int MMCJson::ensureInteger(const QJsonValue val, QString what, const int def)
+{
+	if (val.isUndefined())
+		return def;
+	return ensureInteger(val, what);
+}
+
 void MMCJson::writeString(QJsonObject &to, QString key, QString value)
 {
-	if(value.size())
+	if (!value.isEmpty())
 	{
 		to.insert(key, value);
 	}
@@ -70,7 +119,7 @@ void MMCJson::writeString(QJsonObject &to, QString key, QString value)
 
 void MMCJson::writeStringList(QJsonObject &to, QString key, QStringList values)
 {
-	if(values.size())
+	if (!values.isEmpty())
 	{
 		QJsonArray array;
 		for(auto value: values)
@@ -81,3 +130,13 @@ void MMCJson::writeStringList(QJsonObject &to, QString key, QStringList values)
 	}
 }
 
+QStringList MMCJson::ensureStringList(const QJsonValue val, QString what)
+{
+	const QJsonArray array = ensureArray(val, what);
+	QStringList out;
+	for (const auto value : array)
+	{
+		out.append(ensureString(value));
+	}
+	return out;
+}