package payment

import (
	"context"
	"time"
)

const (
	OrderStatusPending = "pending"
	OrderStatusSuccess = "success"
	OrderStatusFailed  = "failed"
	OrderStatusClosed  = "closed"
)

type PaymentRequest struct {
	OrderID     string
	Amount      int    // 美元分
	Currency    string // USD / CNY
	Description string
	ReturnURL   string
	NotifyURL   string
	ClientIP    string
	Metadata    map[string]string
	TradeType   string // NATIVE / H5 / JSAPI (wxpay)
	OpenID      string // JSAPI 必填 (wxpay)
}

type PaymentResponse struct {
	ProviderOrderID string
	PaymentURL      string // H5/WAP 跳转链接
	QRCode          string // Native 扫码链接
	RawResponse     string
}

type OrderStatus struct {
	ProviderOrderID string
	Status          string // pending / success / failed / closed
	Amount          int
	Currency        string
	PaidAt          *time.Time
}

type Provider interface {
	Name() string
	CreatePayment(ctx context.Context, req *PaymentRequest) (*PaymentResponse, error)
	QueryOrder(ctx context.Context, providerOrderID string) (*OrderStatus, error)
	VerifyNotification(ctx context.Context, body []byte, headers map[string]string) (*OrderStatus, error)
	Refund(ctx context.Context, providerOrderID string, amount int) error
}