Parsing the version files, part III

libmultimc/include/library.h

@@ -19,33 +19,6 @@
 
 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,
@@ -73,6 +46,33 @@ OpSys OpSys_fromString(QString);
 #endif
 
 
+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;
+	};
+};
+
 class OsRule : public Rule
 {
 private:
@@ -85,9 +85,13 @@ protected:
 	{
 		return (m_system == currentSystem);
 	}
-public:
 	OsRule(RuleAction result, OpSys system, QString version_regexp)
 		: Rule(result), m_system(system), m_version_regexp(version_regexp) {}
+public:
+	static QSharedPointer<OsRule> create(RuleAction result, OpSys system, QString version_regexp)
+	{
+		return QSharedPointer<OsRule> (new OsRule(result, system, version_regexp));
+	}
 };
 
 class ImplicitRule : public Rule
@@ -97,39 +101,119 @@ protected:
 	{
 		return true;
 	}
-public:
 	ImplicitRule(RuleAction result)
 		: Rule(result) {}
+public:
+	static QSharedPointer<ImplicitRule> create(RuleAction result)
+	{
+		return QSharedPointer<ImplicitRule> (new ImplicitRule(result));
+	}
 };
 
 class Library
 {
+private:
+	// basic values used internally (so far)
+	QString m_name;
+	QString m_base_url;
+	QList<QSharedPointer<Rule> > m_rules;
+	
+	// derived values used for real things
+	/// where to store the lib locally
+	QString m_storage_path;
+	/// where to download the lib from
+	QString m_download_path;
+	/// is this lib actuall active on the current OS?
+	bool m_is_active;
+	
+	// native lib?
+	bool m_is_native;
+	QMap<OpSys, QString> m_native_suffixes;
 public:
-	QString base_url;
-	QString name;
-	QList<QSharedPointer<Rule> > rules;
-	QMap<OpSys, QString> natives;
 	QStringList extract_excludes;
 	
-	void AddRule(RuleAction result)
+public:
+	/// finalize the library, processing the input values into derived values and state
+	void finalize()
 	{
-		rules.append(QSharedPointer<Rule>(new ImplicitRule(result)));
-	}
-	void AddRule(RuleAction result, OpSys system, QString version_regexp)
+		QStringList parts = m_name.split(':');
+		QString relative = parts[0];
+		relative.replace('.','/');
+		relative += '/' + parts[1] + '/' + parts[2] + '/' + parts[1] + '-' + parts[2];
+		if(!m_is_native)
+			relative += ".jar";
+		else
+		{
+			if(m_native_suffixes.contains(currentSystem))
+			{
+				relative += "-" + m_native_suffixes[currentSystem] + ".jar";
+			}
+			else
+			{
+				// really, bad.
+				relative += ".jar";
+			}
+		}
+		m_storage_path = relative;
+		m_download_path = m_base_url + relative;
+		
+		if(m_rules.empty())
+		{
+			m_is_active = true;
+		}
+		else
+		{
+			RuleAction result = Disallow;
+			for(auto rule: m_rules)
+			{
+				RuleAction temp = rule->apply( this );
+				if(temp != Defer)
+					result = temp;
+			}
+			m_is_active = (result == Allow);
+		}
+		if(m_is_native)
+		{
+			m_is_active = m_is_active && m_native_suffixes.contains(currentSystem);
+		}
+	};
+	
+	Library(QString name)
 	{
-		rules.append(QSharedPointer<Rule>(new OsRule(result, system, version_regexp)));
+		m_is_native = false;
+		m_is_native = false;
+		m_name = name;
+		m_base_url = "https://s3.amazonaws.com/Minecraft.Download/libraries/";
 	}
+	
+	void setName(QString name)
+	{
+		m_name = name;
+	}
+	
+	void setBaseUrl(QString base_url)
+	{
+		m_base_url = base_url;
+	}
+	
+	void setIsNative()
+	{
+		m_is_native = true;
+	}
+	
+	void addNative(OpSys os, QString suffix)
+	{
+		m_is_native = true;
+		m_native_suffixes[os] = suffix;
+	}
+	
+	void setRules(QList<QSharedPointer<Rule> > rules)
+	{
+		m_rules = rules;
+	}
+
 	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;
+		return m_is_active;
 	}
 };