100 lines
2.6 KiB
Go

package paypal
import (
"errors"
"net/http"
"strconv"
"github.com/aerogo/aero"
"github.com/animenotifier/arn"
"github.com/animenotifier/arn/stringutils"
"github.com/animenotifier/notify.moe/components"
"github.com/animenotifier/notify.moe/utils"
)
const adminID = "4J6qpK1ve"
// Success is called once the payment has been confirmed by the user on the PayPal website.
// However, the actual payment still needs to be executed and can fail.
func Success(ctx *aero.Context) string {
user := utils.GetUser(ctx)
if user == nil {
return ctx.Error(http.StatusUnauthorized, "Not logged in")
}
paymentID := ctx.Query("paymentId")
token := ctx.Query("token")
payerID := ctx.Query("PayerID")
if paymentID == "" || payerID == "" || token == "" {
return ctx.Error(http.StatusBadRequest, "Invalid parameters", errors.New("paymentId, token and PayerID are required"))
}
c, err := arn.PayPal()
if err != nil {
return ctx.Error(http.StatusInternalServerError, "Could not initiate PayPal client", err)
}
// Get access token
_, err = c.GetAccessToken()
if err != nil {
return ctx.Error(http.StatusInternalServerError, "Could not get PayPal access token", err)
}
// Execute payment
execute, err := c.ExecuteApprovedPayment(paymentID, payerID)
if err != nil {
return ctx.Error(http.StatusInternalServerError, "Error executing PayPal payment", err)
}
if execute.State != "approved" {
return ctx.Error(http.StatusInternalServerError, "PayPal payment has not been approved", err)
}
sdkPayment, err := c.GetPayment(paymentID)
if err != nil {
return ctx.Error(http.StatusInternalServerError, "Could not retrieve payment information", err)
}
stringutils.PrettyPrint(sdkPayment)
transaction := sdkPayment.Transactions[0]
payment := &arn.PayPalPayment{
ID: paymentID,
PayerID: payerID,
UserID: user.ID,
Method: sdkPayment.Payer.PaymentMethod,
Amount: transaction.Amount.Total,
Currency: transaction.Amount.Currency,
Created: arn.DateTimeUTC(),
}
payment.Save()
// Increase user's balance
user.Balance += payment.Gems()
// Save in DB
user.Save()
// Notify admin
go func() {
admin, _ := arn.GetUser(adminID)
admin.SendNotification(&arn.PushNotification{
Title: user.Nick + " bought " + strconv.Itoa(payment.Gems()) + " gems",
Message: user.Nick + " paid " + payment.Amount + " " + payment.Currency + " making his new balance " + strconv.Itoa(user.Balance),
Icon: user.AvatarLink("large"),
Link: "https://" + ctx.App.Config.Domain + "/api/paypalpayment/" + payment.ID,
Type: arn.NotificationTypePurchase,
})
}()
return ctx.HTML(components.PayPalSuccess(payment))
}