From e9c5dfadb593e1030b54e956c55e0cb43ef2c81d Mon Sep 17 00:00:00 2001
From: Noor Haddad <noor@example.org>
Date: Tue, 6 Oct 2026 10:03:00 +0300
Subject: [PATCH] cli: add --lang to pick the greeting language

---
 src/hello_hut/cli.py    | 6 +++++-
 tests/test_cli.py       | 4 ++++
 tests/test_greetings.py | 4 ++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/hello_hut/cli.py b/src/hello_hut/cli.py
index 5247b665047094914bd2901bac7fa7a61687be2d..7676641cfa851fe4b89c21856bd761bc13e855ed 100644
--- a/src/hello_hut/cli.py
+++ b/src/hello_hut/cli.py
@@ -8,6 +8,7 @@ import sys
 from . import __version__
 from .config import load_config
 from .greetings import DEFAULT_NAME, greet, time_of_day_greeting
+from .translations import TRANSLATIONS
 
 
 def build_parser():
@@ -26,6 +27,8 @@ def build_parser():
                         default="auto", help="colorize the output")
     parser.add_argument("--format", choices=("text", "json"), default="text",
                         help="output format (default: text)")
+    parser.add_argument("--lang", choices=sorted(TRANSLATIONS), default=None,
+                        help="greeting language (default: en)")
     parser.add_argument("--version", action="version",
                         version=f"%(prog)s {__version__}")
     return parser
@@ -45,12 +48,13 @@ def main(argv=None):
     config = load_config()
     name = args.name or config.get("name", DEFAULT_NAME)
     shout = args.shout or bool(config.get("shout", False))
+    lang = args.lang or config.get("lang", "en")
     if args.count < 1:
         print("hello-hut: --count must be at least 1", file=sys.stderr)
         return 2
 
     salutation = time_of_day_greeting() if args.time_of_day else None
-    message = greet(name, shout=shout, salutation=salutation)
+    message = greet(name, shout=shout, salutation=salutation, lang=lang)
     for _ in range(args.count):
         if args.format == "json":
             print(json.dumps({"greeting": message, "name": name}))
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 7896e274381c1b2dead3f03ebd6b3c475b273693..6982c646829a1e1f7134ab74428845b3d708a434 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -28,3 +28,7 @@ class CliTest(unittest.TestCase):
         code, out = run("Ada", "--format", "json")
         self.assertEqual(code, 0)
         self.assertEqual(json.loads(out), {"greeting": "Hello, Ada!", "name": "Ada"})
+
+    def test_lang(self):
+        code, out = run("Ada", "--lang", "es")
+        self.assertEqual(out.strip(), "Hola, Ada!")
diff --git a/tests/test_greetings.py b/tests/test_greetings.py
index 60cdf016c5e6a2032edac09e4ee4cf095c365270..723e4f451b21c6275037399f1565ab1afa36f2d9 100644
--- a/tests/test_greetings.py
+++ b/tests/test_greetings.py
@@ -25,6 +25,10 @@ class GreetTest(unittest.TestCase):
         self.assertEqual(time_of_day_greeting(at(13)), "Good afternoon")
         self.assertEqual(time_of_day_greeting(at(21)), "Good evening")
 
+    def test_lang(self):
+        self.assertEqual(greet("Ada", lang="fr"), "Bonjour, Ada!")
+        self.assertEqual(greet("Ada", lang="xx"), "Hello, Ada!")
+
 
 if __name__ == "__main__":
     unittest.main()