"""
WordPress Integration Service
Handles communication with WordPress sites via REST API
"""
import logging
import requests
from typing import Dict, Any, Optional
from django.conf import settings

logger = logging.getLogger(__name__)


class WordPressClient:
    """
    WordPress REST API client for content publishing and sync.
    """
    
    def __init__(self, site_url: str, username: str = None, app_password: str = None):
        """
        Initialize WordPress client.
        
        Args:
            site_url: WordPress site URL (e.g., https://example.com)
            username: WordPress username or application password username
            app_password: WordPress application password
        """
        self.site_url = site_url.rstrip('/')
        self.api_base = f"{self.site_url}/wp-json/wp/v2"
        self.igny8_api_base = f"{self.site_url}/wp-json/igny8/v1"  # Custom IGNY8 endpoints
        self.username = username
        self.app_password = app_password
        self.session = requests.Session()
        
        # Set up authentication if provided
        if username and app_password:
            self.session.auth = (username, app_password)
    
    def test_connection(self) -> Dict[str, Any]:
        """
        Test connection to WordPress site.
        
        Returns:
            Dict with 'success', 'message', 'wp_version'
        """
        try:
            response = self.session.get(f"{self.api_base}/")
            if response.status_code == 200:
                data = response.json()
                return {
                    'success': True,
                    'message': 'Connection successful',
                    'wp_version': data.get('version', 'Unknown'),
                }
            return {
                'success': False,
                'message': f"HTTP {response.status_code}",
                'wp_version': None,
            }
        except Exception as e:
            logger.error(f"WordPress connection test failed: {e}")
            return {
                'success': False,
                'message': str(e),
                'wp_version': None,
            }
    
    def create_post(
        self,
        title: str,
        content: str,
        status: str = 'draft',
        featured_image_url: Optional[str] = None,
        **kwargs
    ) -> Dict[str, Any]:
        """
        Create a new WordPress post.
        
        Args:
            title: Post title
            content: Post content (HTML or blocks)
            status: Post status ('draft', 'publish', 'pending')
            featured_image_url: URL of featured image (must be uploaded first)
            **kwargs: Additional post fields (excerpt, categories, etc.)
        
        Returns:
            Dict with 'success', 'post_id', 'url', 'error'
        """
        try:
            post_data = {
                'title': title,
                'content': content,
                'status': status,
                **kwargs
            }
            
            if featured_image_url:
                # Convert URL to media ID if needed
                media_id = self._get_media_id_from_url(featured_image_url)
                if media_id:
                    post_data['featured_media'] = media_id
            
            response = self.session.post(f"{self.api_base}/posts", json=post_data)
            
            if response.status_code in [200, 201]:
                data = response.json()
                return {
                    'success': True,
                    'post_id': data.get('id'),
                    'url': data.get('link'),
                    'error': None,
                }
            return {
                'success': False,
                'post_id': None,
                'url': None,
                'error': f"HTTP {response.status_code}: {response.text}",
            }
        except Exception as e:
            logger.error(f"WordPress post creation failed: {e}")
            return {
                'success': False,
                'post_id': None,
                'url': None,
                'error': str(e),
            }
    
    def upload_image(self, image_url: str, filename: str = None) -> Dict[str, Any]:
        """
        Upload an image to WordPress media library.
        
        Args:
            image_url: URL of image to upload
            filename: Optional filename
        
        Returns:
            Dict with 'success', 'media_id', 'url', 'error'
        """
        try:
            # Download image
            img_response = requests.get(image_url)
            if img_response.status_code != 200:
                return {
                    'success': False,
                    'media_id': None,
                    'url': None,
                    'error': f"Failed to download image: HTTP {img_response.status_code}",
                }
            
            # Upload to WordPress
            files = {
                'file': (filename or 'image.jpg', img_response.content, img_response.headers.get('content-type', 'image/jpeg'))
            }
            
            response = self.session.post(f"{self.api_base}/media", files=files)
            
            if response.status_code in [200, 201]:
                data = response.json()
                return {
                    'success': True,
                    'media_id': data.get('id'),
                    'url': data.get('source_url'),
                    'error': None,
                }
            return {
                'success': False,
                'media_id': None,
                'url': None,
                'error': f"HTTP {response.status_code}: {response.text}",
            }
        except Exception as e:
            logger.error(f"WordPress image upload failed: {e}")
            return {
                'success': False,
                'media_id': None,
                'url': None,
                'error': str(e),
            }
    
    def _get_media_id_from_url(self, url: str) -> Optional[int]:
        """Helper to get media ID from URL (if already uploaded)."""
        # TODO: Implement media lookup by URL
        return None
    
    def sync_settings(self, settings_data: Dict[str, Any]) -> Dict[str, Any]:
        """
        Sync settings to WordPress via custom IGNY8 endpoint.
        
        Args:
            settings_data: Settings dictionary to sync
        
        Returns:
            Dict with 'success', 'message', 'error'
        """
        try:
            response = self.session.post(
                f"{self.igny8_api_base}/sync-settings",
                json=settings_data
            )
            
            if response.status_code == 200:
                return {
                    'success': True,
                    'message': 'Settings synced successfully',
                    'error': None,
                }
            return {
                'success': False,
                'message': None,
                'error': f"HTTP {response.status_code}: {response.text}",
            }
        except Exception as e:
            logger.error(f"WordPress settings sync failed: {e}")
            return {
                'success': False,
                'message': None,
                'error': str(e),
            }