1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/design/model/course_search/CurrentSearchQuery.java b/src/main/java/design/model/course_search/CurrentSearchQuery.java
new file mode 100644
index 0000000..3916f0a
--- /dev/null
+++ b/src/main/java/design/model/course_search/CurrentSearchQuery.java
@@ -0,0 +1,86 @@
+package design.model.course_search;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import design.persistence.MasterDatabase;
+
+/* 
+ * Represents the state of our current search.
+ */
+public class CurrentSearchQuery {
+    public static final CurrentSearchQuery INSTANCE = new CurrentSearchQuery();
+    
+
+    MasterDatabase db = MasterDatabase.INSTANCE;
+    private CourseList query = db.getCourseList();
+    private final List<CourseSorter> filters = new ArrayList<CourseSorter>();
+
+    // add a new filter
+    public void addFilter(CourseSorter filter)
+    {
+        filters.add(filter);
+    }
+
+    // clear the filters
+    public void clearFilters()
+    {
+        filters.clear();
+    }
+
+    // print out the filters ( this is for the model checking used filters )
+    public String printFilters()
+    {
+        String filterResult = "";
+
+        // no filters? let the user know.
+        if(filters.size() == 0)
+        {
+            return "nothing";
+        }
+
+        for( CourseSorter f : filters)
+        {
+            filterResult += f.toString() + " --> ";
+        }
+
+        // very silly way of removing the last arrow from our filter list. it's kind of dumb but it works fine.
+        filterResult = filterResult.substring(0, filterResult.length() - 5); 
+        filterResult += "\n";
+
+        return filterResult;
+    }
+
+    // get all the filters
+    public List<CourseSorter> getFilters()
+    {
+        return filters;
+    }
+
+    // get our current query.
+    public CourseList getQueryResult()
+    {
+        return query;
+    }
+
+    public void search(String searchQuery) 
+    {
+        List<ICourse> courses = db.getCourseList().getCourses().stream()
+            .filter(s -> s != null && s.toString().toLowerCase().contains(searchQuery.toLowerCase()))
+            .collect(Collectors.toList());
+
+        // Start with filtered base
+        CourseList current = new CourseList();
+        current.setCourses(courses);
+
+        // Sequentially apply filters
+        for (CourseSorter filter : filters) 
+        {
+            current.setSorter(filter);
+            current = current.groupByCurrentSorter(); // regroup after each
+        }
+
+        query = current;
+    }
+}