ekristen/aws-nuke

package resources

import (
    "context"
    "fmt"

    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/service/cloudwatchevents"

    "github.com/ekristen/libnuke/pkg/registry"
    "github.com/ekristen/libnuke/pkg/resource"
    "github.com/ekristen/libnuke/pkg/types"

    "github.com/ekristen/aws-nuke/v3/pkg/nuke"
)

const CloudWatchEventsRuleResource = "CloudWatchEventsRule"

func init() {
    registry.Register(&registry.Registration{
        Name:     CloudWatchEventsRuleResource,
        Scope:    nuke.Account,
        Resource: &CloudWatchEventsRule{},
        Lister:   &CloudWatchEventsRuleLister{},
    })
}

type CloudWatchEventsRuleLister struct{}

func (l *CloudWatchEventsRuleLister) List(_ context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)
    var resources []resource.Resource

    svc := cloudwatchevents.New(opts.Session)

    params := &cloudwatchevents.ListEventBusesInput{}

    for {
        resp, err := svc.ListEventBuses(params)
        if err != nil {
            return nil, err
        }

        for _, bus := range resp.EventBuses {
            resp, err := svc.ListRules(&cloudwatchevents.ListRulesInput{
                EventBusName: bus.Name,
            })
            if err != nil {
                return nil, err
            }

            for _, rule := range resp.Rules {
                resources = append(resources, &CloudWatchEventsRule{
                    svc:          svc,
                    Name:         rule.Name,
                    ARN:          rule.Arn,
                    State:        rule.State,
                    EventBusName: bus.Name,
                })
            }
        }

        if resp.NextToken == nil {
            break
        }

        params.NextToken = resp.NextToken
    }

    return resources, nil
}

type CloudWatchEventsRule struct {
    svc          *cloudwatchevents.CloudWatchEvents
    Name         *string
    ARN          *string
    State        *string
    EventBusName *string
}

func (r *CloudWatchEventsRule) Remove(_ context.Context) error {
    _, err := r.svc.DeleteRule(&cloudwatchevents.DeleteRuleInput{
        Name:         r.Name,
        EventBusName: r.EventBusName,
        Force:        aws.Bool(true),
    })
    return err
}

func (r *CloudWatchEventsRule) Properties() types.Properties {
    return types.NewPropertiesFromStruct(r)
}

func (r *CloudWatchEventsRule) String() string {
    // TODO: remove Rule:, mark as breaking change for filters
    return fmt.Sprintf("Rule: %s", *r.Name)
}