Added arn to the main repository

arn/PayPalPayment.go

@@ -0,0 +1,79 @@
+package arn
+
+import (
+	"strconv"
+
+	"github.com/aerogo/nano"
+)
+
+// PayPalPayment is an approved and exeucted PayPal payment.
+type PayPalPayment struct {
+	ID       string `json:"id"`
+	UserID   string `json:"userId"`
+	PayerID  string `json:"payerId"`
+	Amount   string `json:"amount"`
+	Currency string `json:"currency"`
+	Method   string `json:"method"`
+	Created  string `json:"created"`
+}
+
+// Gems returns the total amount of gems.
+func (payment *PayPalPayment) Gems() int {
+	amount, err := strconv.ParseFloat(payment.Amount, 64)
+
+	if err != nil {
+		return 0
+	}
+
+	return int(amount)
+}
+
+// User returns the user who made the payment.
+func (payment *PayPalPayment) User() *User {
+	user, _ := GetUser(payment.UserID)
+	return user
+}
+
+// Save saves the paypal payment in the database.
+func (payment *PayPalPayment) Save() {
+	DB.Set("PayPalPayment", payment.ID, payment)
+}
+
+// StreamPayPalPayments returns a stream of all paypal payments.
+func StreamPayPalPayments() <-chan *PayPalPayment {
+	channel := make(chan *PayPalPayment, nano.ChannelBufferSize)
+
+	go func() {
+		for obj := range DB.All("PayPalPayment") {
+			channel <- obj.(*PayPalPayment)
+		}
+
+		close(channel)
+	}()
+
+	return channel
+}
+
+// AllPayPalPayments returns a slice of all paypal payments.
+func AllPayPalPayments() ([]*PayPalPayment, error) {
+	all := make([]*PayPalPayment, 0, DB.Collection("PayPalPayment").Count())
+
+	for obj := range StreamPayPalPayments() {
+		all = append(all, obj)
+	}
+
+	return all, nil
+}
+
+// FilterPayPalPayments filters all paypal payments by a custom function.
+func FilterPayPalPayments(filter func(*PayPalPayment) bool) ([]*PayPalPayment, error) {
+	var filtered []*PayPalPayment
+
+	for obj := range StreamPayPalPayments() {
+		if filter(obj) {
+			filtered = append(filtered, obj)
+		}
+	}
+
+	return filtered, nil
+}