146 lines
3.5 KiB
Go
146 lines
3.5 KiB
Go
package cards
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import (
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"github.com/stripe/stripe-go/v79"
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"github.com/stripe/stripe-go/v79/customer"
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"github.com/stripe/stripe-go/v79/paymentintent"
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"github.com/stripe/stripe-go/v79/paymentmethod"
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"github.com/stripe/stripe-go/v79/subscription"
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)
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type Card struct {
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Secret string
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Key string
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Currency string
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}
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type Transaction struct {
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TransactionStatusID int
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Amount int
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Currency string
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LastFour string
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BankReturnCode string
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}
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func (c *Card) Charge(currency string, amount int) (*stripe.PaymentIntent, string, error) {
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return c.CreatePaymentIntent(currency, amount)
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}
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func (c *Card) CreatePaymentIntent(
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currency string,
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amount int,
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) (*stripe.PaymentIntent, string, error) {
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stripe.Key = c.Secret
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// create a payment intent
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params := &stripe.PaymentIntentParams{
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Amount: stripe.Int64(int64(amount)),
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Currency: stripe.String(currency),
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}
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// params.AddMetadata("key", "value")
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pi, err := paymentintent.New(params)
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if err != nil {
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msg := ""
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if stripeErr, ok := err.(*stripe.Error); ok {
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msg = cardErrorMessage(stripeErr.Code)
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}
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return nil, msg, err
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}
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return pi, "", nil
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}
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// GetPaymentMethod gets the payment method by payment intend id
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func (c *Card) GetPaymentMethod(s string) (*stripe.PaymentMethod, error) {
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stripe.Key = c.Secret
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pm, err := paymentmethod.Get(s, nil)
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if err != nil {
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return nil, err
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}
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return pm, nil
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}
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// RetrievePaymentMethod gets an existing payment intent by id
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func (c *Card) RetrievePaymentIntent(id string) (*stripe.PaymentIntent, error) {
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stripe.Key = c.Secret
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pi, err := paymentintent.Get(id, nil)
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if err != nil {
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return nil, err
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}
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return pi, nil
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}
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func (c *Card) SubscribeToPlan(
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cust *stripe.Customer,
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plan, email, last4, cardType string,
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) (string, error) {
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stripeCustomerID := cust.ID
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items := []*stripe.SubscriptionItemsParams{
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{Plan: stripe.String(plan)},
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}
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params := &stripe.SubscriptionParams{
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Customer: stripe.String(stripeCustomerID),
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Items: items,
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}
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params.AddMetadata("last_four", last4)
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params.AddMetadata("card_type", cardType)
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params.AddExpand("latest_invoice.payment_intent")
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subscription, err := subscription.New(params)
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if err != nil {
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return "", err
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}
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return subscription.ID, nil
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}
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func (c *Card) CreateCustomer(pm, email string) (*stripe.Customer, string, error) {
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stripe.Key = c.Secret
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customerParams := &stripe.CustomerParams{
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PaymentMethod: stripe.String(pm),
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Email: stripe.String(email),
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InvoiceSettings: &stripe.CustomerInvoiceSettingsParams{
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DefaultPaymentMethod: stripe.String(pm),
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},
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}
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cust, err := customer.New(customerParams)
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if err != nil {
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msg := ""
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if stripeErr, ok := err.(*stripe.Error); ok {
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msg = cardErrorMessage(stripeErr.Code)
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}
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return nil, msg, err
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}
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return cust, "", nil
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}
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func cardErrorMessage(code stripe.ErrorCode) string {
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msg := ""
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switch code {
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case stripe.ErrorCodeCardDeclined:
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msg = "Your card was declined"
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case stripe.ErrorCodeExpiredCard:
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msg = "Your card is expired"
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case stripe.ErrorCodeIncorrectCVC:
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msg = "Incorrect CVC code"
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case stripe.ErrorCodeIncorrectZip:
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msg = "Incorrect zip/postal code"
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case stripe.ErrorCodeAmountTooLarge:
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msg = "The amount is too large to charge to your card"
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case stripe.ErrorCodeAmountTooSmall:
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msg = "The amount is too small to charge to your card"
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case stripe.ErrorCodeBalanceInsufficient:
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msg = "Insufficient balance"
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case stripe.ErrorCodePostalCodeInvalid:
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msg = "Incorrect zip/postal code"
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default:
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msg = "Your card was declined"
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}
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return msg
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}
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