libsaria: Create an IdleTask for indexing the library

Right now this will only be triggered when the library is loaded from
disk.  Once I get farther I can easily create a function to index a
track as it is added to the library (so I won't need to reindex
everything during this case)

libsaria/library/file.cpp

@@ -48,6 +48,7 @@ namespace libsaria
 		}
 
 		rebuild_list();
+		reindex();
 	}
 
 	void library::save()

libsaria/library/index.cpp

@@ -0,0 +1,48 @@
+
+#include "library.h"
+
+IndexTask::IndexTask()  {};
+IndexTask::~IndexTask() {};
+
+void IndexTask::index_track(TrackTag *tag)
+{
+	track_list.push_back(tag);
+}
+
+void IndexTask::run_task()
+{
+	println("Indexing!");
+}
+
+static void reindex_path(list<TrackTag> *tag_list)
+{
+	list<TrackTag>::iterator it;
+	unsigned int i = 0, j = 0;
+	IndexTask *task = new IndexTask();
+
+	for (it = tag_list->begin(); it != tag_list->end(); it++) {
+		task->index_track(&(*it));
+		i++;
+		if (i == 50) {
+			task->queue();
+			task = new IndexTask();
+			i = 0;
+			j++;
+		}
+	}
+	task->queue();
+}
+
+namespace libsaria
+{
+
+	void library::reindex()
+	{
+		list<LibraryPath> *path_list = get_path_list();
+		list<LibraryPath>::iterator it;
+
+		for (it = path_list->begin(); it != path_list->end(); it++)
+			reindex_path(it->get_list());
+	}
+
+}; /* Namespace: libsaria */

libsaria/library/library.h

@@ -45,6 +45,17 @@ class ScanTask : public IdleTask
 		void run_task();
 };
 
+class IndexTask : public IdleTask
+{
+	private:
+		list<TrackTag *> track_list;
+	public:
+		IndexTask();
+		~IndexTask();
+		void index_track(TrackTag *);
+		void run_task();
+};
+
 namespace libsaria
 {
 	namespace library
@@ -52,6 +63,7 @@ namespace libsaria
 		list<LibraryPath> *get_path_list();
 		LibraryPath *get_path(string);
 		void rebuild_list();
+		void reindex();
 	}
 }