Initial upload: Shell History Alias Generator with full test suite

shell_alias_gen/parsers/history_factory.py

@@ -0,0 +1,46 @@
+"""History parser factory for creating shell-specific parsers."""
+
+from typing import Dict, Optional, Type
+from .base import HistoryParser
+from .bash import BashHistoryParser
+from .zsh import ZshHistoryParser
+from .fish import FishHistoryParser
+
+
+class HistoryParserFactory:
+    """Factory for creating shell-specific history parsers."""
+    
+    _parsers: Dict[str, Type[HistoryParser]] = {
+        'bash': BashHistoryParser,
+        'zsh': ZshHistoryParser,
+        'fish': FishHistoryParser,
+    }
+    
+    @classmethod
+    def get_parser(cls, shell_type: str) -> Optional[HistoryParser]:
+        """Get a parser instance for the specified shell type."""
+        parser_class = cls._parsers.get(shell_type.lower())
+        if parser_class:
+            return parser_class()
+        return None
+    
+    @classmethod
+    def register_parser(cls, name: str, parser_class: Type[HistoryParser]) -> None:
+        """Register a new parser class."""
+        cls._parsers[name.lower()] = parser_class
+    
+    @classmethod
+    def get_supported_shells(cls) -> list:
+        """Return list of supported shell types."""
+        return list(cls._parsers.keys())
+    
+    @classmethod
+    def detect_shell_from_file(cls, filepath: str) -> Optional[str]:
+        """Try to detect shell type from file extension or content."""
+        if filepath.endswith('.json'):
+            return 'fish'
+        elif filepath.endswith('.zsh_history'):
+            return 'zsh'
+        elif filepath.endswith('.bash_history'):
+            return 'bash'
+        return None