From 271d310f9b45b8058775b2895ee19b9837c9f86d Mon Sep 17 00:00:00 2001
From: David GAILLETON <david.gailleton@posteo.net>
Date: Fri, 20 Mar 2026 18:13:59 +0100
Subject: [PATCH] WIP: module 10 ex4

---
 10/ex4/decorator_mastery.py | 47 +++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 10/ex4/decorator_mastery.py

diff --git a/10/ex4/decorator_mastery.py b/10/ex4/decorator_mastery.py
new file mode 100644
index 0000000..d4b6724
--- /dev/null
+++ b/10/ex4/decorator_mastery.py
@@ -0,0 +1,47 @@
+from typing import Callable, Any
+import time
+from functools import wraps
+
+
+def spell_timer(func: Callable) -> Callable:
+    @wraps(func)
+    def print_time(*args, **kwargs) -> Any:
+        print(f"Casting {func.__name__}")
+        start = time.time()
+        res = func(args, kwargs)
+        print(f"Spell completed int {time.time() - start} seconds")
+        return res
+
+    return print_time
+
+
+def power_validator(min_power: int) -> Callable:
+    def check_power(power: int, func: Callable) -> str | Any:
+        try:
+            if power < min_power:
+                return "Insufficient power for this spell"
+            return func()
+        except Exception:
+            return "invalid input"
+
+    return check_power
+
+
+def retry_spell(max_attempts: int) -> Callable:
+    def try_spell(func: Callable) -> str | Any:
+        for i in range(max_attempts):
+            try:
+                return func()
+            except Exception:
+                print(f"Spell failed, retrying... ({i + 1}/{max_attempts})")
+                continue
+        return f"Spell casting failed after {max_attempts} attempts"
+
+    return try_spell
+
+
+class MageGuild:
+    @staticmethod
+    def validate_mage_name(name: str) -> bool: ...
+
+    def cast_spell(self, spell_name: str, power: int) -> str: ...