Initial import: Carteasy Shop (Dev-Stand)
This commit is contained in:
Thomas Bartelt
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Smart Price Update Service für Intelectra WebShop
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Verhindert 50+ REPLACE INTO Abfragen pro Preisänderung!
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"""
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import json
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import sys
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import pymysql
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import logging
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from configparser import ConfigParser
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import os
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from datetime import datetime
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from decimal import Decimal
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# Logging
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler('/var/www/vhosts/intelectra.de/httpdocs/logs/price_update_service.log'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger('price_update_service')
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class PriceUpdateService:
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"""Intelligenter Price-Update Service mit Change Detection"""
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def __init__(self):
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self.conn = self._connect_db()
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self.cursor = self.conn.cursor(pymysql.cursors.DictCursor)
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def _connect_db(self):
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"""DB-Connection aus config.ini"""
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config_file = os.path.join(os.path.dirname(__file__), 'db_config.ini')
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config = ConfigParser()
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config.read(config_file)
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return pymysql.connect(
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host=config.get('database', 'host', fallback='localhost'),
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user=config.get('database', 'user', fallback='tbapy'),
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password=config.get('database', 'password', fallback='9%%0H32ryj_N9%%0H32ryj'),
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database=config.get('database', 'database', fallback='webshop-sql'),
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charset='utf8mb4',
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cursorclass=pymysql.cursors.DictCursor
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)
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def update_prices_smart(self, item_id, price_data):
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"""
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Smart Price Update - NUR Änderungen!
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Verhindert 50+ REPLACE INTO Abfragen
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"""
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try:
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changes_made = False
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total_changes = 0
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# 1. Aktuelle Preise laden
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self.cursor.execute(
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"SELECT customergroup_id, price_1, price_2, price_3, quantity_2, quantity_3, bargain_price_1, bargain_price_2, bargain_price_3 FROM item_prices WHERE item_id = %s",
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(item_id,)
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)
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current_prices = {row['customergroup_id']: row for row in self.cursor.fetchall()}
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logger.info(f"Loaded {len(current_prices)} existing price records for item {item_id}")
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# 2. Preisänderungen verarbeiten
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for group_id, group_prices in price_data.items():
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if not group_id.startswith('group_'):
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continue
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customer_group_id = int(group_id.replace('group_', ''))
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current_price = current_prices.get(customer_group_id, {})
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# 3. Change Detection für diese Kundengruppe
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needs_update = self._price_changed(current_price, group_prices)
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if needs_update:
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if current_price:
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# UPDATE bestehenden Record
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self._update_existing_price(item_id, customer_group_id, group_prices)
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logger.info(f"Updated prices for group {customer_group_id}")
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else:
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# INSERT neuen Record
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self._insert_new_price(item_id, customer_group_id, group_prices)
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logger.info(f"Inserted new prices for group {customer_group_id}")
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changes_made = True
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total_changes += 1
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else:
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logger.debug(f"No price changes for group {customer_group_id}")
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self.conn.commit()
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return {
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'success': True,
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'item_id': item_id,
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'changes_made': changes_made,
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'groups_updated': total_changes,
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'message': f'Updated {total_changes} price groups' if changes_made else 'No price changes detected'
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}
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except Exception as e:
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self.conn.rollback()
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logger.error(f"Error updating prices for item {item_id}: {str(e)}")
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return {
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'success': False,
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'error': str(e),
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'item_id': item_id
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}
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def _safe_float(self, value):
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"""Konvertiert Wert sicher zu float - behandelt leere Strings und None"""
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if value is None or value == '' or value == 'null':
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return 0.0
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try:
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return float(value)
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except (ValueError, TypeError):
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return 0.0
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def _price_changed(self, current_price, new_prices):
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"""Erkennt ob sich Preise geändert haben"""
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if not current_price: # Neue Kundengruppe
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return True
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# Alle relevanten Preisfelder prüfen
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price_fields = [
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'price_1', 'price_2', 'price_3',
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'quantity_2', 'quantity_3',
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'bargain_price_1', 'bargain_price_2', 'bargain_price_3'
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]
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for field in price_fields:
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if field in new_prices:
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current_val = self._safe_float(current_price.get(field, 0))
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new_val = self._safe_float(new_prices[field])
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# Dezimal-Vergleich mit Toleranz (0.01)
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if abs(current_val - new_val) > 0.001:
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logger.debug(f"Price change detected in {field}: {current_val} -> {new_val}")
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return True
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return False
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def _update_existing_price(self, item_id, customer_group_id, group_prices):
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"""Update bestehenden Preis-Record"""
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set_clauses = []
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values = []
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price_fields = [
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'price_1', 'price_2', 'price_3',
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'quantity_2', 'quantity_3',
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'bargain_price_1', 'bargain_price_2', 'bargain_price_3'
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]
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for field in price_fields:
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if field in group_prices:
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set_clauses.append(f"{field} = %s")
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values.append(self._safe_float(group_prices[field]))
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if set_clauses:
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values.extend([item_id, customer_group_id])
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sql = f"UPDATE item_prices SET {', '.join(set_clauses)} WHERE item_id = %s AND customergroup_id = %s"
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self.cursor.execute(sql, values)
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def _insert_new_price(self, item_id, customer_group_id, group_prices):
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"""Insert neuen Preis-Record"""
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fields = ['item_id', 'customergroup_id']
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values = [item_id, customer_group_id]
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price_fields = [
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'price_1', 'price_2', 'price_3',
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'quantity_2', 'quantity_3',
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'bargain_price_1', 'bargain_price_2', 'bargain_price_3'
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]
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for field in price_fields:
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if field in group_prices:
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fields.append(field)
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values.append(self._safe_float(group_prices[field]))
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placeholders = ', '.join(['%s'] * len(values))
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sql = f"INSERT INTO item_prices ({', '.join(fields)}) VALUES ({placeholders})"
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self.cursor.execute(sql, values)
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def get_price_statistics(self, item_id):
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"""Debug: Preisstatistiken für ein Item"""
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try:
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self.cursor.execute("""
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SELECT
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COUNT(*) as total_groups,
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MIN(price_1) as min_price,
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MAX(price_1) as max_price,
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AVG(price_1) as avg_price
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FROM item_prices
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WHERE item_id = %s AND price_1 > 0
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""", (item_id,))
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stats = self.cursor.fetchone()
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return {
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'success': True,
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'item_id': item_id,
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'statistics': stats
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}
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except Exception as e:
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return {
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'success': False,
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'error': str(e)
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}
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def close(self):
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"""Cleanup"""
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if self.cursor:
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self.cursor.close()
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if self.conn:
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self.conn.close()
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def main():
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"""CLI Entry Point für PHP shell_exec()"""
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if len(sys.argv) < 2:
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print(json.dumps({'error': 'No data provided'}))
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sys.exit(1)
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try:
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# Parse input
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data = json.loads(sys.argv[1])
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item_id = data.get('item_id')
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action = data.get('action', 'update_prices')
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service = PriceUpdateService()
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if action == 'update_prices':
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price_data = data.get('prices', {})
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result = service.update_prices_smart(item_id, price_data)
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elif action == 'get_statistics':
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result = service.get_price_statistics(item_id)
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else:
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result = {'error': f'Unknown action: {action}'}
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service.close()
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# Return JSON
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print(json.dumps(result))
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except Exception as e:
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logger.error(f"Main error: {str(e)}")
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print(json.dumps({'error': str(e)}))
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sys.exit(1)
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if __name__ == '__main__':
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main()
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