ekristen/gcp-nuke

package resources

import (
    "context"
    "errors"
    "github.com/gotidy/ptr"
    "github.com/sirupsen/logrus"

    "google.golang.org/api/iterator"

    "cloud.google.com/go/bigquery"

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

    "github.com/ekristen/gcp-nuke/pkg/nuke"
)

const BigQueryDatasetResource = "BigQueryDataset"

func init() {
    registry.Register(&registry.Registration{
        Name:   BigQueryDatasetResource,
        Scope:  nuke.Project,
        Lister: &BigQueryDatasetLister{},
    })
}

type BigQueryDatasetLister struct {
    svc *bigquery.Client
}

func (l *BigQueryDatasetLister) List(ctx context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)
    var resources []resource.Resource
    if err := opts.BeforeList(nuke.Regional, "bigquery.googleapis.com"); err != nil {
        return resources, err
    }

    if l.svc == nil {
        var err error
        l.svc, err = bigquery.NewClient(ctx, *opts.Project, opts.ClientOptions...)
        if err != nil {
            return nil, err
        }
    }

    // NOTE: you might have to modify the code below to actually work, this currently does not
    // inspect the google go sdk instead is a jumping off point
    it := l.svc.Datasets(ctx)
    for {
        resp, err := it.Next()
        if errors.Is(err, iterator.Done) {
            break
        }
        if err != nil {
            logrus.WithError(err).Error("unable to iterate networks")
            break
        }

        meta, err := resp.Metadata(ctx)
        if err != nil {
            logrus.WithError(err).Error("unable to get dataset metadata")
            continue
        }

        if meta.Location != ptr.ToString(opts.Region) {
            continue
        }

        resources = append(resources, &BigQueryDataset{
            svc:      l.svc,
            project:  opts.Project,
            region:   opts.Region,
            dataset:  resp,
            Name:     ptr.String(meta.Name),
            Location: ptr.String(meta.Location),
            Labels:   meta.Labels,
        })
    }

    return resources, nil
}

type BigQueryDataset struct {
    svc      *bigquery.Client
    project  *string
    region   *string
    dataset  *bigquery.Dataset
    Name     *string
    Location *string
    Labels   map[string]string `property:"tagPrefix=label"`
}

func (r *BigQueryDataset) Remove(ctx context.Context) error {
    if err := r.removeTables(ctx); err != nil {
        return err
    }

    return r.dataset.Delete(ctx)
}

func (r *BigQueryDataset) removeTables(ctx context.Context) error {
    it := r.dataset.Tables(ctx)
    for {
        resp, err := it.Next()
        if errors.Is(err, iterator.Done) {
            break
        }
        if err != nil {
            logrus.WithError(err).Error("unable to iterate tables")
            break
        }

        if err := resp.Delete(ctx); err != nil {
            logrus.WithError(err).Error("unable to delete table")
        }
    }

    return nil
}

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

func (r *BigQueryDataset) String() string {
    return *r.Name
}