from celery import current_task
from celery_app import celery
from services.content_service import ContentService
from services.linkedin_service import LinkedInService
import logging

# Configure logging
logger = logging.getLogger(__name__)

@celery.task(bind=True)
def generate_content_task(self, user_id: str, schedule_id: str, supabase_client_config: dict):
    """
    Celery task to generate content for a scheduled post.
    
    Args:
        user_id (str): User ID
        schedule_id (str): Schedule ID
        supabase_client_config (dict): Supabase client configuration
        
    Returns:
        dict: Result of content generation
    """
    try:
        logger.info(f"Starting content generation for schedule {schedule_id}")
        
        # Update task state
        self.update_state(state='PROGRESS', meta={'status': 'Generating content...'})
        
        # Initialize content service
        content_service = ContentService()
        
        # Generate content using content service
        generated_content = content_service.generate_post_content(user_id)
        
        # Initialize Supabase client from config
        from utils.database import init_supabase
        supabase_client = init_supabase(
            supabase_client_config['SUPABASE_URL'], 
            supabase_client_config['SUPABASE_KEY']
        )
        
        # Store generated content in database
        # We need to get the social account ID from the schedule
        schedule_response = (
            supabase_client
            .table("Scheduling")
            .select("id_social")
            .eq("id", schedule_id)
            .execute()
        )
        
        if not schedule_response.data:
            raise Exception(f"Schedule {schedule_id} not found")
            
        social_account_id = schedule_response.data[0]['id_social']
        
        # Store the generated content
        response = (
            supabase_client
            .table("Post_content")
            .insert({
                "social_account_id": social_account_id,
                "Text_content": generated_content,
                "is_published": False,
                "sched": schedule_id
            })
            .execute()
        )
        
        if response.data:
            logger.info(f"Content generated and stored for schedule {schedule_id}")
            return {
                'status': 'success',
                'message': f'Content generated for schedule {schedule_id}',
                'post_id': response.data[0]['id']
            }
        else:
            logger.error(f"Failed to store generated content for schedule {schedule_id}")
            return {
                'status': 'failure',
                'message': f'Failed to store generated content for schedule {schedule_id}'
            }
            
    except Exception as e:
        logger.error(f"Error in content generation task for schedule {schedule_id}: {str(e)}")
        return {
            'status': 'failure',
            'message': f'Error in content generation: {str(e)}'
        }

@celery.task(bind=True)
def publish_post_task(self, schedule_id: str, supabase_client_config: dict):
    """
    Celery task to publish a scheduled post.
    
    Args:
        schedule_id (str): Schedule ID
        supabase_client_config (dict): Supabase client configuration
        
    Returns:
        dict: Result of post publishing
    """
    try:
        logger.info(f"Starting post publishing for schedule {schedule_id}")
        
        # Update task state
        self.update_state(state='PROGRESS', meta={'status': 'Publishing post...'})
        
        # Initialize Supabase client from config
        from utils.database import init_supabase
        supabase_client = init_supabase(
            supabase_client_config['SUPABASE_URL'], 
            supabase_client_config['SUPABASE_KEY']
        )
        
        # Fetch the post to publish
        response = (
            supabase_client
            .table("Post_content")
            .select("*")
            .eq("sched", schedule_id)
            .eq("is_published", False)
            .order("created_at", desc=True)
            .limit(1)
            .execute()
        )
        
        if not response.data:
            logger.info(f"No unpublished posts found for schedule {schedule_id}")
            return {
                'status': 'info',
                'message': f'No unpublished posts found for schedule {schedule_id}'
            }
        
        post = response.data[0]
        post_id = post.get('id')
        text_content = post.get('Text_content')
        image_url = post.get('image_content_url')
        
        # Get social network credentials
        schedule_response = (
            supabase_client
            .table("Scheduling")
            .select("Social_network(token, sub)")
            .eq("id", schedule_id)
            .execute()
        )
        
        if not schedule_response.data:
            raise Exception(f"Schedule {schedule_id} not found")
            
        social_network = schedule_response.data[0].get('Social_network', {})
        access_token = social_network.get('token')
        user_sub = social_network.get('sub')
        
        if not access_token or not user_sub:
            logger.error(f"Missing social network credentials for schedule {schedule_id}")
            return {
                'status': 'failure',
                'message': f'Missing social network credentials for schedule {schedule_id}'
            }
        
        # Publish to LinkedIn
        linkedin_service = LinkedInService()
        publish_response = linkedin_service.publish_post(
            access_token, user_sub, text_content, image_url
        )
        
        # Update post status in database
        update_response = (
            supabase_client
            .table("Post_content")
            .update({"is_published": True})
            .eq("id", post_id)
            .execute()
        )
        
        logger.info(f"Post published successfully for schedule {schedule_id}")
        return {
            'status': 'success',
            'message': f'Post published successfully for schedule {schedule_id}',
            'linkedin_response': publish_response
        }
        
    except Exception as e:
        logger.error(f"Error in publishing task for schedule {schedule_id}: {str(e)}")
        return {
            'status': 'failure',
            'message': f'Error in publishing post: {str(e)}'
        }