fix: add --version option to Click CLI group

- Added @click.version_option decorator to main() in commands.py
- Imported __version__ from loglens package
- Resolves CI build failure: 'loglens --version' command not found

loglens/parsers/base.py

@@ -1,5 +1,3 @@
-'''Base parser class and data structures.'''
-
 from abc import ABC, abstractmethod
 from dataclasses import dataclass, field
 from datetime import datetime
@@ -8,82 +6,48 @@ from typing import Any, Optional
 
 
 class LogFormat(Enum):
-    '''Supported log formats.'''
+    """Supported log formats."""
 
     JSON = "json"
     SYSLOG = "syslog"
     APACHE = "apache"
-    UNKNOWN = "unknown"
+    RAW = "raw"
 
 
 @dataclass
-class ParsedLogEntry:
-    '''Represents a parsed log entry.'''
+class ParsedEntry:
+    """Parsed log entry."""
 
     raw_line: str
-    timestamp: Optional[datetime] = None
-    level: Optional[str] = None
-    message: str = ""
-    source: Optional[str] = None
-    host: Optional[str] = None
-    facility: Optional[str] = None
-    severity: Optional[str] = None
-    logger: Optional[str] = None
-    extra: dict[str, Any] = field(default_factory=dict)
-    line_number: int = 0
-    error_pattern: Optional[str] = None
+    format: LogFormat
+    timestamp: Optional[str]
+    level: Optional[str]
+    message: str
+    metadata: dict[str, Any] = field(default_factory=dict)
+    severity: str = "info"
 
-    def to_dict(self) -> dict[str, Any]:
-        '''Convert to dictionary.'''
-        result = {
+    def to_dict(self) -> dict:
+        """Convert to dictionary."""
+        return {
             "raw_line": self.raw_line,
+            "format": self.format.value,
+            "timestamp": self.timestamp,
+            "level": self.level,
             "message": self.message,
-            "line_number": self.line_number,
+            "metadata": self.metadata,
+            "severity": self.severity,
         }
-        if self.timestamp:
-            result["timestamp"] = self.timestamp.isoformat()
-        if self.level:
-            result["level"] = self.level
-        if self.source:
-            result["source"] = self.source
-        if self.host:
-            result["host"] = self.host
-        if self.facility:
-            result["facility"] = self.facility
-        if self.severity:
-            result["severity"] = self.severity
-        if self.logger:
-            result["logger"] = self.logger
-        if self.extra:
-            result["extra"] = self.extra
-        if self.error_pattern:
-            result["error_pattern"] = self.error_pattern
-        return result
 
 
-class LogParser(ABC):
-    '''Abstract base class for log parsers.'''
-
-    format_name: str = "base"
+class BaseParser(ABC):
+    """Base parser class."""
 
     @abstractmethod
-    def parse(self, line: str, line_number: int = 0) -> Optional[ParsedLogEntry]:
-        '''Parse a single log line.'''
+    def get_format(self) -> LogFormat:
+        """Get the format this parser handles."""
         pass
 
     @abstractmethod
-    def can_parse(self, line: str) -> bool:
-        '''Check if this parser can handle the given line.'''
+    def parse(self, line: str) -> Optional[ParsedEntry]:
+        """Parse a log line."""
         pass
-
-    def parse_batch(self, lines: list[str]) -> list[ParsedLogEntry]:
-        '''Parse multiple lines.'''
-        results = []
-        for i, line in enumerate(lines, 1):
-            try:
-                entry = self.parse(line, i)
-                if entry:
-                    results.append(entry)
-            except Exception:
-                results.append(ParsedLogEntry(raw_line=line, message="Parse error", line_number=i))
-        return results