物流退货包裹代理

import json, uuid, datetime
from enum import Enum

class ReturnStatus(Enum):
    PENDING = "Pending"
    APPROVED = "Approved"
    INSPECTION = "Inspection"
    REFUNDED = "Refunded"

def generate_rma(product, reason):
    return {
        "rma": f"RMA-{uuid.uuid4().hex[:6].upper()}",
        "product": product,
        "reason": reason,
        "status": ReturnStatus.PENDING.value,
        "created": datetime.date.today().isoformat(),
        "refund_amount": 0.0
    }

def calculate_refund(rma, price):
    if rma["reason"] in ("Defective", "Damaged"):
        return round(price * 0.85, 2)
    return round(price * 1.0, 2)

def update_inventory(stock, product, qty):
    stock[product] = stock.get(product, 0) + qty
    return stock

returns = [
    generate_rma("Kemeja Cotton", "Wrong size"),
    generate_rma("Kasut Sukan", "Defective"),
    generate_rma("Jam Tangan", "Changed mind"),
]
for r in returns:
    r["refund_amount"] = calculate_refund(r, 80.0)
    r["status"] = ReturnStatus.APPROVED.value
print(json.dumps(returns, indent=2))