ekristen/aws-nuke

package resources

import (
    "context"

    "github.com/gotidy/ptr"

    "github.com/aws/aws-sdk-go/service/ec2"

    "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 EC2DHCPOptionResource = "EC2DHCPOption"

func init() {
    registry.Register(&registry.Registration{
        Name:     EC2DHCPOptionResource,
        Scope:    nuke.Account,
        Resource: &EC2DHCPOption{},
        Lister:   &EC2DHCPOptionLister{},
        DeprecatedAliases: []string{
            "EC2DhcpOptions",
            "EC2DHCPOptions",
        },
    })
}

type EC2DHCPOptionLister struct{}

func (l *EC2DHCPOptionLister) List(_ context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)

    svc := ec2.New(opts.Session)

    resp, err := svc.DescribeDhcpOptions(&ec2.DescribeDhcpOptionsInput{})
    if err != nil {
        return nil, err
    }

    defVpcDhcpOptsID := ""
    if defVpc := DefaultVpc(svc); defVpc != nil {
        defVpcDhcpOptsID = ptr.ToString(defVpc.DhcpOptionsId)
    }

    resources := make([]resource.Resource, 0)
    for _, out := range resp.DhcpOptions {
        resources = append(resources, &EC2DHCPOption{
            svc:        svc,
            id:         out.DhcpOptionsId,
            tags:       out.Tags,
            defaultVPC: defVpcDhcpOptsID == ptr.ToString(out.DhcpOptionsId),
            ownerID:    out.OwnerId,
        })
    }

    return resources, nil
}

type EC2DHCPOption struct {
    svc        *ec2.EC2
    id         *string
    tags       []*ec2.Tag
    defaultVPC bool
    ownerID    *string
}

func (e *EC2DHCPOption) Remove(_ context.Context) error {
    params := &ec2.DeleteDhcpOptionsInput{
        DhcpOptionsId: e.id,
    }

    _, err := e.svc.DeleteDhcpOptions(params)
    if err != nil {
        return err
    }

    return nil
}

func (e *EC2DHCPOption) Properties() types.Properties {
    properties := types.NewProperties()

    properties.Set("DefaultVPC", e.defaultVPC)
    properties.Set("OwnerID", e.ownerID)

    for _, tagValue := range e.tags {
        properties.SetTag(tagValue.Key, tagValue.Value)
    }

    return properties
}

func (e *EC2DHCPOption) String() string {
    return ptr.ToString(e.id)
}