fix: resolve CI issues - remove unused imports and fix code quality

repohealth-cli/src/repohealth/models/file_stats.py

@@ -0,0 +1,45 @@
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Optional
+
+
+@dataclass
+class FileAnalysis:
+    """Analysis result for a single file."""
+
+    path: str
+    total_commits: int
+    author_commits: dict[str, int]
+    first_commit: Optional[datetime] = None
+    last_commit: Optional[datetime] = None
+    gini_coefficient: float = 0.0
+    bus_factor: float = 1.0
+    risk_level: str = "unknown"
+    module: str = ""
+    extension: str = ""
+
+    @property
+    def num_authors(self) -> int:
+        """Number of unique authors for this file."""
+        return len(self.author_commits)
+
+    @property
+    def top_author(self) -> Optional[tuple[str, int]]:
+        """Get the author with most commits."""
+        if not self.author_commits:
+            return None
+        return max(self.author_commits.items(), key=lambda x: x[1])
+
+    @property
+    def top_author_share(self) -> float:
+        """Get the percentage of commits by the top author."""
+        if not self.author_commits or self.total_commits == 0:
+            return 0.0
+        top_count = self.top_author[1] if self.top_author else 0
+        return top_count / self.total_commits
+
+    def get_author_share(self, author: str) -> float:
+        """Get the percentage of commits by a specific author."""
+        if not self.author_commits or self.total_commits == 0:
+            return 0.0
+        return self.author_commits.get(author, 0) / self.total_commits