feat: /new_creative tg_bot

src/usecase/creative/text_formatting.py

@@ -0,0 +1,22 @@
+import re
+
+_LINK_WITH_LABEL_PATTERN: re.Pattern[str] = re.compile(r'\[(?P<label>[^\[\]]+?)\]\s*\{link\}', re.IGNORECASE)
+_LINK_PLACEHOLDER_PATTERN: re.Pattern[str] = re.compile(r'\{link\}', re.IGNORECASE)
+_LINK_CLASS = 'tg-link'
+
+
+def _replace_label_placeholder(match: re.Match[str]) -> str:
+    label = match.group('label')
+    return f'<a class="{_LINK_CLASS}">{label}</a>'
+
+
+def prepare_creative_text_html(source: str) -> str:
+    """Normalize Telegram HTML and replace {link} placeholder with custom elements.
+
+    Supported patterns:
+    - ``{link}`` → ``<a class="tg-link"></a>``
+    - ``[Label]{link}`` → ``<a class="tg-link">Label</a>``
+    """
+
+    with_labels = _LINK_WITH_LABEL_PATTERN.sub(_replace_label_placeholder, source)
+    return _LINK_PLACEHOLDER_PATTERN.sub(f'<a class="{_LINK_CLASS}"></a>', with_labels)