"""
Labels Module Routes
Handles label printing pages and API endpoints
"""
from flask import Blueprint, render_template, session, redirect, url_for, jsonify, request
import logging

from .print_module import (
    get_unprinted_orders_data, 
    get_printed_orders_data,
    update_order_printed_status,
    search_orders_by_cp_code
)

logger = logging.getLogger(__name__)

labels_bp = Blueprint('labels', __name__, url_prefix='/labels')


@labels_bp.route('/', methods=['GET'])
def labels_index():
    """Labels module home page"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    return render_template('modules/labels/index.html')


@labels_bp.route('/print-module', methods=['GET'])
def print_module():
    """Label printing interface with thermal printer support"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    return render_template('modules/labels/print_module.html')


@labels_bp.route('/print-lost-labels', methods=['GET'])
def print_lost_labels():
    """Print lost/missing labels interface"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    return render_template('modules/labels/print_lost_labels.html')


# ============================================================================
# API Endpoints for Labels Module
# ============================================================================

@labels_bp.route('/api/unprinted-orders', methods=['GET'], endpoint='api_unprinted_orders')
def api_unprinted_orders():
    """Get all unprinted orders for label printing"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'error': 'Unauthorized'}), 401
    
    try:
        limit = request.args.get('limit', 100, type=int)
        if limit > 500:
            limit = 500
        if limit < 1:
            limit = 1
        
        orders = get_unprinted_orders_data(limit)
        return jsonify({'success': True, 'orders': orders, 'count': len(orders)}), 200
    except Exception as e:
        logger.error(f"Error getting unprinted orders: {e}")
        return jsonify({'success': False, 'error': str(e)}), 500


@labels_bp.route('/api/printed-orders', methods=['GET'], endpoint='api_printed_orders')
def api_printed_orders():
    """Get all printed orders"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'error': 'Unauthorized'}), 401
    
    try:
        limit = request.args.get('limit', 100, type=int)
        if limit > 500:
            limit = 500
        if limit < 1:
            limit = 1
        
        orders = get_printed_orders_data(limit)
        return jsonify({'success': True, 'orders': orders, 'count': len(orders)}), 200
    except Exception as e:
        logger.error(f"Error getting printed orders: {e}")
        return jsonify({'success': False, 'error': str(e)}), 500


@labels_bp.route('/api/search-orders', methods=['POST'], endpoint='api_search_orders')
def api_search_orders():
    """Search for orders by CP code"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'error': 'Unauthorized'}), 401
    
    try:
        data = request.get_json()
        cp_code = data.get('cp_code', '').strip()
        
        if not cp_code or len(cp_code) < 1:
            return jsonify({'success': False, 'error': 'CP code is required'}), 400
        
        results = search_orders_by_cp_code(cp_code)
        return jsonify({'success': True, 'orders': results, 'count': len(results)}), 200
    except Exception as e:
        logger.error(f"Error searching orders: {e}")
        return jsonify({'success': False, 'error': str(e)}), 500


@labels_bp.route('/api/update-printed-status/<int:order_id>', methods=['POST'], endpoint='api_update_printed_status')
def api_update_printed_status(order_id):
    """Mark an order as printed"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'error': 'Unauthorized'}), 401
    
    try:
        data = request.get_json() or {}
        printed = data.get('printed', True)
        
        success = update_order_printed_status(order_id, printed)
        if success:
            return jsonify({'success': True, 'message': 'Order status updated'}), 200
        else:
            return jsonify({'success': False, 'error': 'Failed to update order'}), 500
    except Exception as e:
        logger.error(f"Error updating order status: {e}")
        return jsonify({'success': False, 'error': str(e)}), 500