Add HelpTopic dataclass and TOML loader

src/mudlib/content.py

@@ -3,6 +3,7 @@
 import importlib
 import logging
 import tomllib
+from dataclasses import dataclass
 from pathlib import Path
 from typing import cast
 
@@ -139,3 +140,42 @@ def load_commands(directory: Path) -> list[CommandDefinition]:
             log.warning("failed to load command from %s: %s", path, e)
 
     return commands
+
+
+@dataclass
+class HelpTopic:
+    """A help topic loaded from a TOML file."""
+
+    name: str
+    body: str
+    title: str = ""
+    admin: bool = False
+
+    def __post_init__(self):
+        if not self.title:
+            self.title = self.name
+
+
+def load_help_topic(path: Path) -> HelpTopic:
+    """Load a single help topic from a TOML file."""
+    with open(path, "rb") as f:
+        data = tomllib.load(f)
+
+    return HelpTopic(
+        name=data["name"],
+        body=data["body"].strip(),
+        title=data.get("title", ""),
+        admin=data.get("admin", False),
+    )
+
+
+def load_help_topics(directory: Path) -> dict[str, HelpTopic]:
+    """Load all help topics from a directory of TOML files."""
+    topics: dict[str, HelpTopic] = {}
+    for path in directory.glob("*.toml"):
+        try:
+            topic = load_help_topic(path)
+            topics[topic.name] = topic
+        except Exception as e:
+            log.warning("failed to load help topic from %s: %s", path, e)
+    return topics

tests/test_help_topics.py

@@ -0,0 +1,79 @@
+"""Tests for TOML help topic loading."""
+
+import textwrap
+
+import pytest
+
+from mudlib.content import load_help_topics
+
+
+@pytest.fixture
+def help_dir(tmp_path):
+    """Create a temp directory with sample help TOML files."""
+    topic = tmp_path / "combat.toml"
+    topic.write_text(
+        textwrap.dedent("""\
+        name = "combat"
+        title = "combat primer"
+        body = \"\"\"
+        combat is initiated when you attack another entity.
+        use skills to learn your available moves.
+        \"\"\"
+    """)
+    )
+
+    admin_topic = tmp_path / "building.toml"
+    admin_topic.write_text(
+        textwrap.dedent("""\
+        name = "building"
+        title = "builder's guide"
+        admin = true
+        body = \"\"\"
+        use @dig to create zones and @paint to edit terrain.
+        \"\"\"
+    """)
+    )
+    return tmp_path
+
+
+def test_load_help_topics(help_dir):
+    topics = load_help_topics(help_dir)
+    assert "combat" in topics
+    assert "building" in topics
+
+
+def test_help_topic_fields(help_dir):
+    topics = load_help_topics(help_dir)
+    combat = topics["combat"]
+    assert combat.name == "combat"
+    assert combat.title == "combat primer"
+    assert combat.admin is False
+    assert "combat is initiated" in combat.body
+
+
+def test_help_topic_admin_flag(help_dir):
+    topics = load_help_topics(help_dir)
+    building = topics["building"]
+    assert building.admin is True
+
+
+def test_help_topic_title_defaults_to_name(tmp_path):
+    topic = tmp_path / "simple.toml"
+    topic.write_text('name = "simple"\nbody = "just a test"\n')
+    topics = load_help_topics(tmp_path)
+    assert topics["simple"].title == "simple"
+
+
+def test_load_help_topics_empty_dir(tmp_path):
+    topics = load_help_topics(tmp_path)
+    assert topics == {}
+
+
+def test_load_help_topics_skips_bad_files(tmp_path):
+    bad = tmp_path / "broken.toml"
+    bad.write_text("not valid toml [[[")
+    good = tmp_path / "good.toml"
+    good.write_text('name = "good"\nbody = "works"\n')
+    topics = load_help_topics(tmp_path)
+    assert "good" in topics
+    assert "broken" not in topics