#!/usr/bin/env python3
"""
PolyHermes AI Fixer - Test Demo
Demonstration of the AI fixer workflow with mock data.
"""

import sys
import os
import subprocess
from pathlib import Path
from datetime import datetime

class PolyHermesAIFixerDemo:
    def __init__(self):
        self.repo_root = Path(__file__).parent.parent
        self.dry_run = True
        
    def fetch_mock_issues(self):
        """Mock GitHub Issues with label 'fix via ai'"""
        print("🔍 Fetching GitHub Issues with label 'fix via ai' (Mock Demo)...")
        
        # Mock issue data
        mock_issues = [
            {
                'number': 42,
                'title': 'Fix login page authentication bug',
                'body': 'The login page fails to authenticate users properly when using special characters in password.',
                'html_url': 'https://github.com/wrbug/polyhermes/issues/42'
            },
            {
                'number': 67,
                'title': 'Update API endpoint for user profiles',
                'body': 'Need to update the /api/users/{id} endpoint to return user profile data correctly.',
                'html_url': 'https://github.com/wrbug/polyhermes/issues/67'
            },
            {
                'number': 89,
                'title': 'Fix responsive design on mobile',
                'body': 'The main dashboard layout is broken on mobile devices and needs responsive fixes.',
                'html_url': 'https://github.com/wrbug/polyhermes/issues/89'
            }
        ]
        
        print(f"✅ Found {len(mock_issues)} mock issues to fix")
        return mock_issues
    
    def create_demo_branch(self, issue_number, title):
        """Create a demo branch (simulated)"""
        branch_name = f"ai_fix/n_{issue_number}"
        
        print(f"🌿 Creating branch: {branch_name} (Demo)")
        
        try:
            # Switch to main branch
            subprocess.run(['git', 'checkout', 'main'], check=True, capture_output=True)
            
            # Pull latest changes
            subprocess.run(['git', 'pull', 'origin', 'main'], check=True, capture_output=True)
            
            # Create new branch
            subprocess.run(['git', 'checkout', '-b', branch_name], check=True, capture_output=True)
            
            print(f"✅ Branch {branch_name} created successfully (Demo)")
            return branch_name
        except subprocess.CalledProcessError as e:
            print(f"❌ Error creating branch: {e}")
            return None
    
    def simulate_cursor_fix(self, issue_number, title):
        """Simulate Cursor Agent fix"""
        print(f"🤖 Calling Cursor Agent for issue #{issue_number} (Demo)")
        
        # Create demo fix file
        fix_file = self.repo_root / "scripts" / f"demo_fix_issue_{issue_number}.md"
        
        with open(fix_file, 'w') as f:
            f.write(f"""# Fix for Issue #{issue_number}: {title}

## Issue Description
{title}

## Fix Implementation
Demo implementation for issue #{issue_number}.

## Changes Made
- Fixed authentication bug in login component
- Updated API endpoint to handle user profiles correctly
- Implemented responsive CSS fixes for mobile layout
- Added proper error handling and validation

## Files Modified
- frontend/src/components/Login.js
- backend/routes/api/users.js
- frontend/src/styles/Dashboard.css
- backend/src/middleware/validation.js

## Testing Results
- Frontend compilation: ✅
- Backend compilation: ✅
- Unit tests: ✅ (12/12 passed)
- Integration tests: ✅ (8/8 passed)
- Browser tests: ✅ (Chrome, Firefox, Safari)
""")
        
        print(f"✅ Cursor Agent fix completed (Demo)")
        return True
    
    def verify_compilation(self):
        """Verify frontend and backend compilation (simulated)"""
        print("🔍 Verifying compilation (Demo)...")
        
        try:
            # Check frontend compilation
            frontend_dir = self.repo_root / "frontend"
            if frontend_dir.exists():
                print("📱 Checking frontend compilation...")
                print("✅ Frontend compilation check completed")
            
            # Check backend compilation
            backend_dir = self.repo_root / "backend"
            if backend_dir.exists():
                print("⚙️  Checking backend compilation...")
                print("✅ Backend compilation check completed")
            
            return True
        except Exception as e:
            print(f"❌ Compilation verification failed: {e}")
            return False
    
    def commit_and_push_demo(self, branch_name, issue_number):
        """Simulate commit and push"""
        print(f"📤 Committing and pushing changes for branch {branch_name} (Demo)")
        
        try:
            # Add all changes
            subprocess.run(['git', 'add', '.'], check=True, capture_output=True)
            
            # Create commit
            commit_message = f"AI fix for issue #{issue_number}"
            subprocess.run(['git', 'commit', '-m', commit_message], check=True, capture_output=True)
            
            # Push to remote
            subprocess.run(['git', 'push', 'origin', branch_name], check=True, capture_output=True)
            
            print(f"✅ Changes committed and pushed to {branch_name} (Demo)")
            return True
        except subprocess.CalledProcessError as e:
            print(f"❌ Error during commit/push: {e}")
            return False
    
    def create_demo_pr(self, issue_number, title, branch_name):
        """Simulate PR creation"""
        print(f"🔗 Creating Pull Request for issue #{issue_number} (Demo)")
        
        pr_url = f"https://github.com/wrbug/polyhermes/pull/ai_fix_{issue_number}"
        
        print(f"✅ Pull Request created: {pr_url}")
        
        # Comment on the original issue (simulated)
        self.comment_on_issue_demo(issue_number, pr_url)
        return True
    
    def comment_on_issue_demo(self, issue_number, pr_url):
        """Simulate commenting on the GitHub issue"""
        print(f"💬 Commenting on issue #{issue_number} (Demo)")
        
        comment_file = self.repo_root / "scripts" / f"comment_issue_{issue_number}.md"
        
        with open(comment_file, 'w') as f:
            f.write(f"""## AI Fix Implementation Completed

AI Fix implemented and Pull Request created: {pr_url}

### Summary
- Issue #{issue_number}: {title}
- Branch: {branch_name}
- Status: ✅ Completed
- Testing: ✅ All tests passed

### Changes
- Automated fix implementation using PolyHermes AI Fixer
- Frontend and backend verification completed
- Ready for review and merge

This fix was automatically generated by the PolyHermes AI Fixer.
""")
        
        print(f"✅ Commented on issue #{issue_number} (Demo)")
    
    def run(self):
        """Main execution flow"""
        print("🚀 Starting PolyHermes AI Fixer (Demo Mode)")
        print("=" * 50)
        print("📋 This is a demonstration of the AI fixer workflow")
        print("🔧 In production mode, this would connect to GitHub and Cursor APIs")
        print("=" * 50)
        
        # Fetch mock issues
        issues = self.fetch_mock_issues()
        if not issues:
            print("❌ No issues found to fix")
            return
        
        for issue in issues:
            issue_number = issue['number']
            title = issue['title']
            
            print(f"\n🎯 Processing issue #{issue_number}: {title}")
            print("-" * 40)
            
            try:
                # Create branch
                branch_name = self.create_demo_branch(issue_number, title)
                if not branch_name:
                    print(f"❌ Failed to create branch for issue #{issue_number}")
                    continue
                
                # Call Cursor Agent (simulated)
                if not self.simulate_cursor_fix(issue_number, title):
                    print(f"❌ Cursor Agent failed for issue #{issue_number}")
                    continue
                
                # Verify compilation
                if not self.verify_compilation():
                    print(f"⚠️  Compilation verification failed for issue #{issue_number}")
                    # Continue anyway, but note the issue
                
                # Commit and push (simulated)
                if not self.commit_and_push_demo(branch_name, issue_number):
                    print(f"❌ Failed to commit/push for issue #{issue_number}")
                    continue
                
                # Create PR (simulated)
                if not self.create_demo_pr(issue_number, title, branch_name):
                    print(f"❌ Failed to create PR for issue #{issue_number}")
                    continue
                
                print(f"✅ Issue #{issue_number} processed successfully!")
                
            except Exception as e:
                print(f"❌ Error processing issue #{issue_number}: {e}")
                continue
        
        print("\n🎉 PolyHermes AI Fixer (Demo) completed!")
        print("\n📋 Summary:")
        print("- ✅ Successfully demonstrated the complete workflow")
        print("- ✅ Mock GitHub issues processed")
        print("- ✅ Branch creation and management")
        print("- ✅ AI fix implementation simulation")
        print("- ✅ Compilation verification")
        print("- ✅ Commit and push operations")
        print("- ✅ Pull Request creation")
        print("- ✅ Issue commenting")
        print("\n🔧 In production, this would use real GitHub API calls and Cursor AI")

def main():
    """Main entry point"""
    fixer = PolyHermesAIFixerDemo()
    fixer.run()

if __name__ == "__main__":
    main()