零售 Customer 忠诚度 代理

import requests, json, pandas as pd

CRM_API = "https://api.retail.com/v2/loyalty"

def fetch_customers():
    resp = requests.get(CRM_API + "/customers")
    return resp.json().get("customers", [])

def calculate_tier(points):
    if points >= 5000: return "Platinum"
    if points >= 2000: return "Gold"
    if points >= 500:  return "Silver"
    return "Bronze"

def suggest_reward(customer):
    if customer["tier"] == "Platinum": return "VIP access"
    if customer["tier"] == "Gold":     return "RM 50 reward"
    if customer["tier"] == "Silver":   return "20% voucher"
    return "Welcome bonus"

def analyze_loyalty(customers):
    for c in customers:
        c["tier"] = calculate_tier(c["points"])
        c["reward"] = suggest_reward(c)
    return customers

report = analyze_loyalty(fetch_customers())
print(json.dumps(report, indent=2))