#!/usr/bin/env python3
"""Forge Log Analyzer - generates JSON report."""
import sys
import json
from pathlib import Path
from datetime import datetime
import re

def analyze_forge_log(filepath):
    """Analyze a forge log file and return key metrics."""
    content = Path(filepath).read_text()
    
    filename = Path(filepath).name
    duration_match = re.match(r'forge-(\d{4}-\d{2}-\d{2}-\d{6})\.txt', filename)
    
    metrics = {
        'file': str(filepath),
        'filename': filename,
        'lines': len(content.split('\n')),
        'words': len(content.split()),
        'chars': len(content),
    }
    
    if duration_match:
        ts_str = duration_match.group(1)
        try:
            dt = datetime.strptime(ts_str, '%Y-%m-%d-%H%M%S')
            metrics['session_time'] = dt.strftime('%Y-%m-%d %H:%M:%S')
        except:
            pass
    
    return metrics

def main():
    outputs_dir = Path('/root/.hermes/wizard-outputs')
    forge_logs = sorted(outputs_dir.glob('forge-*.txt'))
    
    results = {
        'generated_at': datetime.now().isoformat(),
        'total_files': len(forge_logs),
        'files_analyzed': len(forge_logs[:10]),
        'analysis': [analyze_forge_log(log) for log in forge_logs[:10]]
    }
    
    chars = [m['chars'] for m in results['analysis']]
    results['total_lines'] = sum(m['lines'] for m in results['analysis'])
    results['total_chars'] = sum(chars)
    results['avg_file_chars'] = sum(chars) / len(chars) if chars else 0
    
    # Output as JSON
    print(json.dumps(results, indent=2))
    return 0

if __name__ == '__main__':
    sys.exit(main())