"""
Settings routes for the Podcastrr application.
"""
from flask import Blueprint, render_template, request, redirect, url_for, flash, current_app
import os
from app.models.settings import Settings
from app.models.database import db

settings_bp = Blueprint('settings', __name__)

@settings_bp.route('/', methods=['GET', 'POST'])
def index():
    """
    Display and update application settings.
    """
    # Get current settings
    settings = Settings.query.first()

    # If no settings exist, create default settings
    if not settings:
        settings = Settings(
            download_path=current_app.config['DOWNLOAD_PATH'],
            naming_format="{podcast_title}/{episode_title}",
            auto_download=False,
            max_downloads=5,
            delete_after_days=30
        )
        db.session.add(settings)
        db.session.commit()

    if request.method == 'POST':
        # Update settings
        download_path = request.form.get('download_path')
        naming_format = request.form.get('naming_format')
        auto_download = 'auto_download' in request.form
        max_downloads = int(request.form.get('max_downloads', 5))
        delete_after_days = int(request.form.get('delete_after_days', 30))

        # Validate download path
        if not os.path.exists(download_path):
            try:
                os.makedirs(download_path, exist_ok=True)
            except Exception as e:
                flash(f'Error creating download directory: {str(e)}', 'error')
                return render_template('settings/index.html', 
                                      title='Settings',
                                      settings=settings)

        # Update settings
        settings.download_path = download_path
        settings.naming_format = naming_format
        settings.auto_download = auto_download
        settings.max_downloads = max_downloads
        settings.delete_after_days = delete_after_days

        db.session.commit()

        # Update application config
        current_app.config['DOWNLOAD_PATH'] = download_path

        flash('Settings updated successfully!', 'success')
        return redirect(url_for('settings.index'))

    return render_template('settings/index.html', 
                          title='Settings',
                          settings=settings)

@settings_bp.route('/naming-preview', methods=['POST'])
def naming_preview():
    """
    Preview the naming format.
    """
    naming_format = request.form.get('naming_format', '')

    # Example data for preview
    example_data = {
        'podcast_title': 'Example Podcast',
        'episode_title': 'Episode 1: Introduction',
        'published_date': '2023-01-01',
        'episode_number': '1'
    }

    try:
        # Format the example data with the naming format
        preview = naming_format.format(**example_data)
        return {'preview': preview}
    except Exception as e:
        return {'error': str(e)}