1 files changed, 30 insertions, 0 deletions
diff --git a/todo/model/priority.py b/todo/model/priority.py
new file mode 100644
index 0000000..5948104
--- /dev/null
+++ b/todo/model/priority.py
@@ -0,0 +1,30 @@
+from enum import IntEnum
+from typing import Optional
+
+class Priority(IntEnum):
+    LOW = 0
+    MIDDLE = 1
+    HIGH = 2
+
+values = [
+    Priority.LOW,
+    Priority.MIDDLE,
+    Priority.HIGH]
+
+def format(priority: Priority) -> str:
+    if priority == Priority.LOW:
+        return "Low"
+    elif priority == Priority.MIDDLE:
+        return "Middle"
+    elif priority == Priority.HIGH:
+        return "High"
+
+def parse(string: str) -> Optional[Priority]:
+    if string == "Low":
+        return Priority.LOW
+    elif string == "Middle":
+        return Priority.MIDDLE
+    elif string == "High":
+        return Priority.HIGH
+    else:
+        return None