add zibal verify step

gateway/zibal/verify.go

@@ -0,0 +1,43 @@
+package zibal
+
+import (
+	"encoding/json"
+
+	e "github.com/mohammadv184/gopayment/errors"
+	"github.com/mohammadv184/gopayment/receipt"
+)
+
+// VerifyRequest is the request struct for verify
+type VerifyRequest struct {
+	TrackID string `json:"track_id"`
+}
+
+// Verify is the function to verify a payment
+func (d *Driver) Verify(vReq interface{}) (*receipt.Receipt, error) {
+	verifyReq, ok := vReq.(*VerifyRequest)
+	if !ok {
+		return nil, e.ErrInternal{
+			Message: "vReq is not of type VerifyRequest",
+		}
+	}
+	resp, _ := client.Post(APIVerifyURL, map[string]string{
+		"trackId":  verifyReq.TrackID,
+		"merchant": d.Merchant,
+	}, nil)
+
+	var res map[string]interface{}
+	err := json.Unmarshal(resp.Body(), &res)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode() != 200 || res["result"].(float64) != 100 {
+		return nil, e.ErrPurchaseFailed{
+			Message: res["message"].(string),
+		}
+	}
+
+	rec := receipt.NewReceipt(res["refNumber"].(string), d.GetDriverName())
+	rec.Detail("cardNumber", res["cardNumber"].(string))
+	return rec, nil
+}