1 files changed, 117 insertions, 0 deletions
diff --git a/libmultimc/include/library.h b/libmultimc/include/library.h
index 10ecb9f3..30270bc1 100644
--- a/libmultimc/include/library.h
+++ b/libmultimc/include/library.h
@@ -15,4 +15,121 @@
 
 #pragma once
 
+#include <QtCore>
 
+class Library;
+
+enum RuleAction
+{
+	Allow,
+	Disallow,
+	Defer
+};
+
+RuleAction RuleAction_fromString(QString);
+
+class Rule
+{
+protected:
+	RuleAction m_result;
+	virtual bool applies(Library * parent) = 0;
+public:
+	Rule(RuleAction result)
+		:m_result(result) {}
+	virtual ~Rule(){};
+	RuleAction apply(Library * parent)
+	{
+		if(applies(parent))
+			return m_result;
+		else
+			return Defer;
+	};
+};
+
+enum OpSys
+{
+	Os_Windows,
+	Os_Linux,
+	Os_OSX,
+	Os_Other
+};
+
+OpSys OpSys_fromString(QString);
+
+#ifdef Q_OS_MAC
+	#define currentSystem Os_OSX
+#endif
+
+#ifdef Q_OS_LINUX
+	#define currentSystem Os_Linux
+#endif
+
+#ifdef Q_OS_WIN32
+	#define currentSystem Os_Windows
+#endif
+
+#ifndef currentSystem
+	#define currentSystem Os_Other
+#endif
+
+
+class OsRule : public Rule
+{
+private:
+	// the OS
+	OpSys m_system;
+	// the OS version regexp
+	QString m_version_regexp;
+protected:
+	virtual bool applies ( Library* )
+	{
+		return (m_system == currentSystem);
+	}
+public:
+	OsRule(RuleAction result, OpSys system, QString version_regexp)
+		: Rule(result), m_system(system), m_version_regexp(version_regexp) {}
+};
+
+class ImplicitRule : public Rule
+{
+protected:
+	virtual bool applies ( Library* )
+	{
+		return true;
+	}
+public:
+	ImplicitRule(RuleAction result)
+		: Rule(result) {}
+};
+
+class Library
+{
+public:
+	QString base_url;
+	QString name;
+	QList<QSharedPointer<Rule> > rules;
+	QMap<OpSys, QString> natives;
+	QStringList extract_excludes;
+	
+	void AddRule(RuleAction result)
+	{
+		rules.append(QSharedPointer<Rule>(new ImplicitRule(result)));
+	}
+	void AddRule(RuleAction result, OpSys system, QString version_regexp)
+	{
+		rules.append(QSharedPointer<Rule>(new OsRule(result, system, version_regexp)));
+	}
+	bool applies()
+	{
+		if(rules.empty())
+			return true;
+		RuleAction result = Disallow;
+		for(auto rule: rules)
+		{
+			RuleAction temp = rule->apply( this );
+			if(temp != Defer)
+				result = temp;
+		}
+		return result == Allow;
+	}
+};