"""
Dynamic Link Page Manager utilities
"""

import uuid
from datetime import datetime

# In-memory storage for dynamic link pages (in production, use a database)
link_pages_db = {}

class LinkPageManager:
    def __init__(self):
        pass
    
    def create_link_page(self, title="My Links", description="Collection of useful links"):
        """Create a new dynamic link page"""
        page_id = str(uuid.uuid4())
        page_data = {
            'id': page_id,
            'title': title,
            'description': description,
            'links': [],
            'created_at': datetime.now().isoformat(),
            'updated_at': datetime.now().isoformat(),
            'view_count': 0
        }
        link_pages_db[page_id] = page_data
        return page_id
    
    def add_link(self, page_id, title, url, description=""):
        """Add a link to a page"""
        if page_id not in link_pages_db:
            return False
        
        link_data = {
            'id': str(uuid.uuid4()),
            'title': title,
            'url': url if url.startswith(('http://', 'https://')) else f'https://{url}',
            'description': description,
            'created_at': datetime.now().isoformat()
        }
        
        link_pages_db[page_id]['links'].append(link_data)
        link_pages_db[page_id]['updated_at'] = datetime.now().isoformat()
        return True
    
    def update_link(self, page_id, link_id, title=None, url=None, description=None):
        """Update a specific link"""
        if page_id not in link_pages_db:
            return False
        
        for link in link_pages_db[page_id]['links']:
            if link['id'] == link_id:
                if title is not None:
                    link['title'] = title
                if url is not None:
                    link['url'] = url if url.startswith(('http://', 'https://')) else f'https://{url}'
                if description is not None:
                    link['description'] = description
                
                link_pages_db[page_id]['updated_at'] = datetime.now().isoformat()
                return True
        return False
    
    def delete_link(self, page_id, link_id):
        """Delete a specific link"""
        if page_id not in link_pages_db:
            return False
        
        links = link_pages_db[page_id]['links']
        link_pages_db[page_id]['links'] = [link for link in links if link['id'] != link_id]
        link_pages_db[page_id]['updated_at'] = datetime.now().isoformat()
        return True
    
    def increment_view_count(self, page_id):
        """Increment view count for a page"""
        if page_id in link_pages_db:
            link_pages_db[page_id]['view_count'] += 1
    
    def get_page(self, page_id):
        """Get page data"""
        return link_pages_db.get(page_id)
    
    def page_exists(self, page_id):
        """Check if page exists"""
        return page_id in link_pages_db