package onvif

import (
	"github.com/IOTechSystems/onvif/event"
	"github.com/IOTechSystems/onvif/xsd"
)

func (c *Connection) SubscribeEvents(
	consumerAddress event.AttributedURIType,
	terminationTime xsd.String, // PT60S
) (*event.SubscribeResponse, error) {
	resp, err := c.Device.CallMethod(event.Subscribe{
		ConsumerReference: &event.EndpointReferenceType{
			Address: consumerAddress,
		},
		Filter: &event.FilterType{
			TopicExpression: &event.TopicExpressionType{
				TopicKinds: "tns1:VideoSource//.",
			},
		},
		TerminationTime: &terminationTime,
	})
	if err != nil {
		return nil, err
	}

	result := &event.SubscribeResponse{}
	err = unmarshalResponse(resp, result)
	if err != nil {
		return nil, err
	}

	return result, nil
}