1 files changed, 127 insertions, 0 deletions
diff --git a/src/main/java/net/sowgro/npehero/levelapi/Difficulties.java b/src/main/java/net/sowgro/npehero/levelapi/Difficulties.java
new file mode 100644
index 0000000..cffd95e
--- /dev/null
+++ b/src/main/java/net/sowgro/npehero/levelapi/Difficulties.java
@@ -0,0 +1,127 @@
+package net.sowgro.npehero.levelapi;
+
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.nio.file.FileAlreadyExistsException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * Responsible for the list of difficulties in a level
+ */
+public class Difficulties {
+
+    public final ObservableList<Difficulty> list = FXCollections.observableArrayList();
+    public final HashMap<String, Exception> problems = new HashMap<>();
+
+    private final Level level;
+
+    /**
+     * Creates a new Difficulties object
+     * @param level the file path of the level
+     * @throws IOException If there is a problem reading in the difficulties
+     */
+    public Difficulties(Level level) throws IOException {
+        this.level = level;
+        read();
+    }
+
+    /**
+     * Loads difficulties
+     * <p>
+     * Creates difficulty objects out of each subfolder in the level and adds it to the list.
+     * @throws IOException If there is a problem reading in the difficulties
+     */
+    public void read() throws IOException {
+        list.clear();
+        File[] fileList = level.dir.listFiles();
+        if (fileList == null) {
+            throw new FileNotFoundException();
+        }
+        for(File cur: fileList) {
+            if (cur.isDirectory()) {
+                try {
+                    Difficulty diff = new Difficulty(cur, level);
+                    list.add(diff);
+                } catch (IOException e) {
+                    problems.put("", e);
+                    e.printStackTrace();
+                }
+            }
+        }
+        list.sort(Comparator.naturalOrder());
+    }
+
+    /**
+     * Removes a difficulty
+     * <p>
+     * Recursively deletes the folder and removes it from the list
+     * @param diff: The difficulty to remove.
+     * @throws IOException If there is a problem removing the difficulty.
+     */
+    public void remove(Difficulty diff) throws IOException {
+        File hold = diff.thisDir;
+        Files.walk(hold.toPath())
+                .sorted(Comparator.reverseOrder())
+                .map(Path::toFile)
+                .forEach(File::delete);
+        list.remove(diff);
+    }
+
+    /**
+     * Adds a difficulty
+     * <p>
+     * Creates the directory and required files
+     * @param text The name of the directory
+     * @throws IOException If there is a problem adding the level
+     */
+    public void add(String text) throws IOException {
+        File diffDir = new File(level.dir, text.toLowerCase().replaceAll("\\W+", "-"));
+        if (diffDir.exists()) {
+            throw new FileAlreadyExistsException(diffDir.getName());
+        }
+        if (diffDir.mkdirs()) {
+            Difficulty temp = new Difficulty(diffDir, level);
+            temp.title = text;
+            list.add(temp);
+            list.sort(Comparator.naturalOrder());
+        }
+        else {
+            throw new IOException();
+        }
+    }
+
+    /**
+     * Saves the order of the difficulties in the list
+     * <p>
+     * Updates the order variable of each difficulty in the list to match their index in the list
+     * @throws IOException If there is a problem saving the difficulty's metadata file
+     */
+    public void saveOrder() throws IOException {
+        for (Difficulty d : list) {
+            d.order = list.indexOf(d);
+            d.writeMetadata();
+        }
+    }
+
+    /**
+     * Get a list of only the valid difficulties in the level.
+     * @return A list of the valid difficulties.
+     */
+    public List<Difficulty> getValidList() {
+        ObservableList<Difficulty> validList = FXCollections.observableArrayList();
+        for (Difficulty difficulty : list) {
+            if (difficulty.isValid()) {
+                validList.add(difficulty);
+            }
+        }
+        return validList;
+    }
+}