import oracledb
import json
import logging

logging.basicConfig(level=logging.INFO)

# Connect to the Oracle database
try:
    connection = oracledb.connect(
        user="sisvietnam",
        password="sisvietnam",
        dsn="localhost:1521/sisvietnam"
    )

    with connection.cursor() as cursor:
        # Get the ID of the 'education' tag
        sql_tag = "SELECT id, name FROM sis_tag WHERE name LIKE '%education%' FETCH FIRST 1 ROWS ONLY"
        cursor.execute(sql_tag)
        tag = cursor.fetchone()
        
        if not tag:
            logging.error("Tag 'education' not found.")
        else:
            tag_id = tag[0]
            tag_name = tag[1]
            logging.info(f"Found tag '{tag_name}' with ID {tag_id}")
            
            # Fetch the latest 10 published posts with this tag
            sql_posts = """
                SELECT p.title, p.featured_image, p.slug, p.excerpt, p.created_date, p.content 
                FROM sis_post p
                JOIN sis_post_tag pt ON p.id = pt.post_id
                WHERE pt.tag_id = :tag_id AND p.status = 'PUBLISHED'
                ORDER BY p.created_date DESC
                FETCH FIRST 10 ROWS ONLY
            """
            cursor.execute(sql_posts, [tag_id])
            posts = cursor.fetchall()
            
            import random
            import re
            
            def extract_words(html_text, num_words=100):
                if not html_text:
                    return ""
                if hasattr(html_text, 'read'):
                    html_text = html_text.read()
                text = re.sub('<[^<]+?>', ' ', html_text)
                words = text.split()
                return " ".join(words[:num_words]) + ("..." if len(words) > num_words else "")
            
            prices = ["42.400.000 VNĐ", "23.000.000 VNĐ", "32.500.000 VNĐ", "15.000.000 VNĐ", "Liên hệ"]
            badges = ["SAT", "SUN", "MON", "TUE", "WED", "THU", "FRI"]
            
            items = []
            for post in posts:
                img = post[1] if post[1] else ""
                desc = post[3] if post[3] else extract_words(post[5], 100)
                date_val = post[4]
                date_str = date_val.strftime("%d/%m/%Y") if hasattr(date_val, 'strftime') else str(date_val) if date_val else "12/09/2026"
                
                items.append({
                    "title": post[0],
                    "imageUrl": img,
                    "linkUrl": f"/dao-tao/{post[2]}",
                    "description": desc,
                    "badge": random.choice(badges),
                    "price": random.choice(prices),
                    "dateStr": date_str
                })
                
            new_group = {
                "slug": "chuong-trinh-khac",
                "name": "Chương trình khác",
                "layoutType": "course-card",
                "description": "",
                "className": "",
                "notes": f"Tự động tạo bằng Python từ thẻ {tag_name}",
                "items": items
            }
            
            # Get existing settings
            sql_setting = "SELECT setting_value FROM sis_setting WHERE setting_key = 'plugin_swiper_slider_data'"
            cursor.execute(sql_setting)
            setting = cursor.fetchone()
            
            if setting and setting[0]:
                try:
                    # In Oracle CLOB is sometimes returned as LOB object, read it if so
                    val = setting[0]
                    if hasattr(val, 'read'):
                        val = val.read()
                    groups = json.loads(val)
                except Exception as e:
                    logging.error(f"Error parsing JSON: {e}")
                    groups = []
            else:
                groups = []
                
            # Remove existing 'chuong-trinh-khac' if present
            groups = [g for g in groups if g.get('slug') != 'chuong-trinh-khac']
            
            # Add the new group
            groups.append(new_group)
            
            new_setting_value = json.dumps(groups, ensure_ascii=False)
            
            # Update the database
            if setting:
                sql_update = "UPDATE sis_setting SET setting_value = :val WHERE setting_key = 'plugin_swiper_slider_data'"
                cursor.execute(sql_update, [new_setting_value])
            else:
                sql_insert = "INSERT INTO sis_setting (setting_key, setting_value) VALUES ('plugin_swiper_slider_data', :val)"
                cursor.execute(sql_insert, [new_setting_value])
                
            connection.commit()
            logging.info("Successfully updated sis_setting with the new slider group.")
            
except Exception as e:
    logging.error(f"An error occurred: {e}")
finally:
    if 'connection' in locals():
        connection.close()