个性化网约车系统优惠活动

import random
from datetime import datetime, timedelta

def issue_new_user_coupon(user_id):
    # 定义优惠券类型及其概率
    coupon_types = [
        {"type": "折扣券", "discount": 0.9, "probability": 0.7},
        {"type": "满减券", "threshold": 50, "amount": 10, "probability": 0.2},
        {"type": "立减券", "amount": 5, "probability": 0.1}
    ]
    
    # 根据概率选择优惠券类型
    selected_coupon = random.choices(coupon_types, weights=[c['probability'] for c in coupon_types])[0]
    
    # 设置优惠券有效期
    expiration_date = datetime.now() + timedelta(days=30)
    
    # 将优惠券信息存入数据库
    coupon_data = {
        "user_id": user_id,
        "type": selected_coupon["type"],
        "value": selected_coupon.get("discount", selected_coupon.get("amount")),
        "threshold": selected_coupon.get("threshold"),
        "expiration_date": expiration_date
    }
    
    save_coupon_to_db(coupon_data)
    return coupon_data

def save_coupon_to_db(coupon_data):
    # 模拟保存优惠券信息到数据库的操作
    print(f"Saving coupon for user {coupon_data['user_id']}: {coupon_data}")

# 示例调用
new_user_id = 12345
issued_coupon = issue_new_user_coupon(new_user_id)
print(f"Issued coupon to user {new_user_id}: {issued_coupon}")