feat: implement timezone and country data handling in thctime module

tests/test_main.py

@@ -5,6 +5,7 @@ from unittest import mock
 import pytest
 
 import main
+import thctime
 
 
 SAMPLE_TIMEZONE_CSV = """Etc/UTC,ZZ,UTC,0,0,0
@@ -72,7 +73,7 @@ def test_create_embed_all_types(monkeypatch):
 
 def test_where_is_it_420(monkeypatch):
     # Limit timezones to a predictable set
-    monkeypatch.setattr(main.pytz, 'all_timezones', ['Etc/UTC'])
+    monkeypatch.setattr(thctime.pytz, 'all_timezones', ['Etc/UTC'])
 
     tzs = [{'zone_name': 'Etc/UTC', 'country_code': 'ZZ'}]
     countries = [{'country_code': 'ZZ', 'country_name': 'Nowhere'}]
@@ -84,11 +85,7 @@ def test_where_is_it_420(monkeypatch):
                 hour = 4
             return R()
 
-    monkeypatch.setattr(main, 'datetime', FakeDatetime)
-    monkeypatch.setattr(main, 'get_tz_info', lambda name,
-                        t: tzs[0] if name == 'Etc/UTC' else None)
-    monkeypatch.setattr(main, 'get_country_info', lambda code,
-                        c: countries[0] if code == 'ZZ' else None)
+    monkeypatch.setattr(thctime, 'datetime', FakeDatetime)
 
     res = main.where_is_it_420(tzs, countries)
     assert res == ['Nowhere']