#!/usr/bin/env python3
"""
Commit Formatter for Git Agent
Formats detailed commit messages for backup commits
"""

import os
from datetime import datetime, timezone
from typing import Dict, Any

class CommitFormatter:
    """Formats detailed commit messages for backup commits"""
    
    def __init__(self, config: Dict[str, Any], logger):
        self.config = config
        self.logger = logger
        self.project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    
    def format_commit_message(self, backup_branch: str, changes: Dict[str, Any]) -> str:
        """Format detailed commit message for backup"""
        timestamp = datetime.now(timezone.utc)
        
        # Basic info
        file_count = len(changes['files'])
        backup_number = self._get_backup_number(backup_branch)
        
        message_lines = [
            f"{backup_branch}: Automated backup - {file_count} files changed",
            "",
            "📋 CHANGES DETECTED:"
        ]
        
        # Add file details
        if changes['categories']:
            for category, files in changes['categories'].items():
                if files:
                    message_lines.append(f"├── {category.upper()} ({len(files)} files)")
                    for file_info in files:
                        status_icon = self._get_status_icon(file_info['status'])
                        line_info = self._get_line_changes(file_info)
                        filename = os.path.basename(file_info['path'])
                        message_lines.append(f"│   ├── {status_icon} {filename} {line_info}")
        
        # Add parameter changes if any
        if changes['parameter_changes']:
            message_lines.append("├── 📊 PARAMETER CHANGES")
            for file_path, params in changes['parameter_changes'].items():
                filename = os.path.basename(file_path)
                message_lines.append(f"│   ├── 📄 {filename}")
                for param_name, param_info in params.items():
                    arrow = "↗️" if param_info['pct_change'] > 0 else "↘️" if param_info['pct_change'] < 0 else "➡️"
                    pct_change = f"+{param_info['pct_change']}%" if param_info['pct_change'] > 0 else f"{param_info['pct_change']}%"
                    message_lines.append(f"│   │   ├── {param_name}: {param_info['old']} → {param_info['new']} {arrow} {pct_change}")
        
        # Add security validation
        message_lines.extend([
            "├── 🔒 SECURITY VALIDATION",
            "│   ├── .env files: Correctly excluded",
            "│   ├── *.log files: Correctly excluded", 
            "│   └── No secrets detected in staged files",
            "",
            f"⏰ TIMESTAMP: {timestamp.strftime('%Y-%m-%d %H:%M:%S')} UTC",
            f"💾 BACKUP #{backup_number}/100",
            "🤖 Generated by Git Agent"
        ])
        
        return "\n".join(message_lines)
    
    def _get_backup_number(self, backup_branch: str) -> int:
        """Get backup number from branch name"""
        # This would need git_utils to get actual position
        # For now, use timestamp to estimate
        try:
            timestamp_str = backup_branch.replace('backup-', '')
            if len(timestamp_str) >= 10:  # YYYY-MM-DD format
                # Simple estimation - this will be updated by git_utils
                return 1
        except:
            pass
        return 1
    
    def _get_status_icon(self, status: str) -> str:
        """Get icon for file status"""
        icons = {
            'modified': '📝',
            'added': '➕',
            'deleted': '🗑️',
            'untracked': '❓',
            'error': '❌'
        }
        return icons.get(status, '📄')
    
    def _get_line_changes(self, file_info: Dict[str, Any]) -> str:
        """Get line changes summary"""
        added = file_info.get('lines_added', 0)
        deleted = file_info.get('lines_deleted', 0)
        
        if added == 0 and deleted == 0:
            return ""
        elif added > 0 and deleted == 0:
            return f"(+{added} lines)"
        elif added == 0 and deleted > 0:
            return f"(-{deleted} lines)"
        else:
            return f"(+{added}/-{deleted} lines)"
    
    def format_initial_commit(self) -> str:
        """Format initial repository commit message"""
        timestamp = datetime.now(timezone.utc)
        
        return f"""🎯 Initial commit: Uniswap Auto CLP trading system

Core Components:
├── uniswap_manager.py: V3 concentrated liquidity position manager
├── clp_hedger.py: Hyperliquid perpetuals hedging bot  
├── requirements.txt: Python dependencies
├── .gitignore: Security exclusions for sensitive data
├── doc/: Project documentation
└── tools/: Utility scripts and Git agent

Features:
├── Automated liquidity provision on Uniswap V3 (WETH/USDC)
├── Delta-neutral hedging using Hyperliquid perpetuals
├── Position lifecycle management (open/close/rebalance)
└── Automated backup and version control system

Security:
├── Private keys and tokens excluded from version control
├── Environment variables properly handled
└── Automated security validation for backups

⏰ TIMESTAMP: {timestamp.strftime('%Y-%m-%d %H:%M:%S')} UTC
🚀 Ready for automated backups
"""