#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Test database connection and check data"""

import os
import sys
from dotenv import load_dotenv
import pymysql
from datetime import datetime

# Load environment variables
load_dotenv()

def test_db_connection():
    """Test database connection and list tables"""
    print("=" * 60)
    print("Testing Database Connection")
    print("=" * 60)
    
    # Get database configuration
    db_config = {
        'host': os.getenv('MYSQL_HOST', 'mysql.theaken.com'),
        'port': int(os.getenv('MYSQL_PORT', 33306)),
        'user': os.getenv('MYSQL_USER', 'A060'),
        'password': os.getenv('MYSQL_PASSWORD', 'WLeSCi0yhtc7'),
        'database': os.getenv('MYSQL_DATABASE', 'db_A060'),
        'charset': 'utf8mb4'
    }
    
    print(f"Host: {db_config['host']}")
    print(f"Port: {db_config['port']}")
    print(f"Database: {db_config['database']}")
    print(f"User: {db_config['user']}")
    print("-" * 60)
    
    try:
        # Connect to database
        connection = pymysql.connect(**db_config)
        cursor = connection.cursor()
        
        print("[OK] Successfully connected to database")
        
        # List all tables
        print("\n[1] Listing all todo tables:")
        cursor.execute("SHOW TABLES LIKE 'todo%'")
        tables = cursor.fetchall()
        
        if tables:
            for table in tables:
                print(f"  - {table[0]}")
        else:
            print("  No todo tables found")
        
        # Check todo_item table
        print("\n[2] Checking todo_item table:")
        cursor.execute("SELECT COUNT(*) FROM todo_item")
        count = cursor.fetchone()[0]
        print(f"  Total records: {count}")
        
        if count > 0:
            print("\n  Sample data from todo_item:")
            cursor.execute("""
                SELECT id, title, status, priority, due_date, creator_ad 
                FROM todo_item 
                ORDER BY created_at DESC 
                LIMIT 5
            """)
            items = cursor.fetchall()
            for item in items:
                print(f"    - {item[0][:8]}... | {item[1][:30]}... | {item[2]} | {item[5]}")
        
        # Check todo_user_pref table
        print("\n[3] Checking todo_user_pref table:")
        cursor.execute("SELECT COUNT(*) FROM todo_user_pref")
        count = cursor.fetchone()[0]
        print(f"  Total users: {count}")
        
        if count > 0:
            print("\n  Sample users:")
            cursor.execute("""
                SELECT ad_account, display_name, email 
                FROM todo_user_pref 
                LIMIT 5
            """)
            users = cursor.fetchall()
            for user in users:
                print(f"    - {user[0]} | {user[1]} | {user[2]}")
        
        # Check todo_item_responsible table
        print("\n[4] Checking todo_item_responsible table:")
        cursor.execute("SELECT COUNT(*) FROM todo_item_responsible")
        count = cursor.fetchone()[0]
        print(f"  Total assignments: {count}")
        
        # Check todo_item_follower table
        print("\n[5] Checking todo_item_follower table:")
        cursor.execute("SELECT COUNT(*) FROM todo_item_follower")
        count = cursor.fetchone()[0]
        print(f"  Total followers: {count}")
        
        cursor.close()
        connection.close()
        
        print("\n" + "=" * 60)
        print("[OK] Database connection test successful!")
        print("=" * 60)
        return True
        
    except Exception as e:
        print(f"\n[ERROR] Database connection failed: {str(e)}")
        print(f"Error type: {type(e).__name__}")
        return False

def create_sample_todo():
    """Create a sample todo item for testing"""
    print("\n" + "=" * 60)
    print("Creating Sample Todo Item")
    print("=" * 60)
    
    db_config = {
        'host': os.getenv('MYSQL_HOST', 'mysql.theaken.com'),
        'port': int(os.getenv('MYSQL_PORT', 33306)),
        'user': os.getenv('MYSQL_USER', 'A060'),
        'password': os.getenv('MYSQL_PASSWORD', 'WLeSCi0yhtc7'),
        'database': os.getenv('MYSQL_DATABASE', 'db_A060'),
        'charset': 'utf8mb4'
    }
    
    try:
        connection = pymysql.connect(**db_config)
        cursor = connection.cursor()
        
        # Generate a UUID
        import uuid
        todo_id = str(uuid.uuid4())
        
        # Insert sample todo
        sql = """
            INSERT INTO todo_item 
            (id, title, description, status, priority, due_date, created_at, creator_ad, creator_display_name, creator_email, starred)
            VALUES 
            (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
        """
        
        values = (
            todo_id,
            'Test Todo Item - ' + datetime.now().strftime('%Y-%m-%d %H:%M'),
            'This is a test todo item created from Python script',
            'NEW',
            'MEDIUM',
            '2025-09-15',
            datetime.now(),
            'test_user',
            'Test User',
            'test@panjit.com.tw',
            False
        )
        
        cursor.execute(sql, values)
        connection.commit()
        
        print(f"[OK] Created todo item with ID: {todo_id}")
        
        cursor.close()
        connection.close()
        return True
        
    except Exception as e:
        print(f"[ERROR] Failed to create todo: {str(e)}")
        return False

if __name__ == "__main__":
    # Test database connection
    if test_db_connection():
        # Ask if user wants to create sample data
        response = input("\nDo you want to create a sample todo item? (y/n): ")
        if response.lower() == 'y':
            create_sample_todo()
    else:
        print("\n[WARNING] Please check your database configuration in .env file")
        sys.exit(1)