#!/usr/bin/env python3
"""Example: Using .env configuration file with py-wikijs.

This example shows how to use environment variables (.env file) to configure
the WikiJS client.

Prerequisites:
    pip install python-dotenv

Setup:
    1. Copy config.env.example to .env
    2. Update .env with your Wiki.js credentials
    3. Run this script

Usage:
    python using_env_config.py
"""

import sys
from pathlib import Path

# Add examples directory to path
sys.path.insert(0, str(Path(__file__).parent))

try:
    from dotenv import load_dotenv
except ImportError:
    print("❌ python-dotenv is required for .env files")
    print("Install with: pip install python-dotenv")
    sys.exit(1)

from config_helper import create_client_from_config, load_config


def main():
    """Main function."""
    print("=" * 60)
    print("Using .env Configuration with py-wikijs")
    print("=" * 60)

    # Method 1: Load .env explicitly
    print("\n📁 Method 1: Load .env explicitly")
    env_file = Path(__file__).parent / ".env"

    if not env_file.exists():
        print(f"⚠️  .env file not found at {env_file}")
        print("   Copy config.env.example to .env and update it")
        print("\n📁 Method 2: Using config helper")

    # Load the .env file
    load_dotenv(env_file)

    # Method 2: Use config helper (recommended)
    try:
        config = load_config(".env")
        print(f"✅ Loaded configuration from .env")
        print(f"\nConfiguration:")
        print(f"  URL: {config.get('wikijs', {}).get('url')}")
        print(f"  Auth method: {config.get('wikijs', {}).get('auth', {}).get('method')}")
        print(f"  Timeout: {config.get('client', {}).get('timeout')}s")
        print(f"  Rate limit: {config.get('client', {}).get('rate_limit')} req/s")

        # Create client
        print("\n🔌 Creating WikiJS client...")
        client = create_client_from_config(config)
        print(f"✅ Client created successfully")
        print(f"   Base URL: {client.base_url}")

        # Test connection
        print("\n🔍 Testing connection...")
        pages = client.pages.list()
        print(f"✅ Connected! Found {len(pages)} page(s)")

        if pages:
            print(f"\n📄 First page:")
            print(f"   ID: {pages[0].id}")
            print(f"   Title: {pages[0].title}")
            print(f"   Path: {pages[0].path}")

        # Show metrics
        metrics = client.get_metrics()
        print(f"\n📊 Metrics:")
        print(f"   Total requests: {metrics['total_requests']}")
        print(f"   Successful: {metrics['successful_requests']}")
        print(f"   Failed: {metrics['failed_requests']}")

    except FileNotFoundError:
        print("❌ .env file not found")
        print("   1. Copy config.env.example to .env")
        print("   2. Update with your Wiki.js credentials")

    except Exception as e:
        print(f"❌ Error: {e}")
        return 1

    print("\n" + "=" * 60)
    print("✅ Example completed successfully!")
    print("=" * 60)
    return 0


if __name__ == "__main__":
    sys.exit(main())