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package sweepkcp
import (
"context"
"errors"
"fmt"
"net/http"
"sort"
"strings"
kcpv1alpha1 "github.com/kcp-dev/sdk/apis/tenancy/v1alpha1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/client-go/rest"
"github.com/johnandersen777/socialweb-computer-kcp/api/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/internal/contract/clusterhome"
)
var (
socialwebResource = v1alpha1.GroupVersion
tenancyResource = kcpv1alpha1.SchemeGroupVersion
)
const SweepExemptLabel = "socialweb.computer/sweep"
const SweepExemptValue = "exempt"
type Options struct {
Host string
RestConfig *rest.Config
Transport http.RoundTripper
}
type Worklist struct {
cfg *rest.Config
http *http.Client
codecs runtime.NegotiatedSerializer
}
func NewWorklist(opts Options) (*Worklist, error) {
if opts.Host == "" {
return nil, errors.New("sweepkcp: Host is required")
}
cfg := &rest.Config{}
if opts.RestConfig != nil {
cfg = rest.CopyConfig(opts.RestConfig)
}
cfg.Host = strings.TrimSuffix(opts.Host, "/")
cfg.ContentType = "application/json"
cfg.AcceptContentTypes = "application/json"
if opts.Transport != nil {
cfg.Transport = opts.Transport
}
httpClient, err := rest.HTTPClientFor(cfg)
if err != nil {
return nil, fmt.Errorf("sweepkcp: %w", err)
}
scheme, err := newScheme()
if err != nil {
return nil, err
}
return &Worklist{cfg: cfg, http: httpClient, codecs: serializer.NewCodecFactory(scheme).WithoutConversion()}, nil
}
func (w *Worklist) DIDs(ctx context.Context) ([]string, error) {
names, err := w.accountWorkspaces(ctx)
if err != nil {
return nil, err
}
seen := make(map[string]bool, len(names))
out := make([]string, 0, len(names))
for _, name := range names {
dids, err := w.accountDIDs(ctx, clusterhome.RootWorkspace+":"+name)
if apierrors.IsNotFound(err) {
continue
}
if err != nil {
return nil, err
}
for _, did := range dids {
if did == "" || seen[did] {
continue
}
seen[did] = true
out = append(out, did)
}
}
sort.Strings(out)
return out, nil
}
func (w *Worklist) accountWorkspaces(ctx context.Context) ([]string, error) {
r, err := w.resource(clusterhome.RootWorkspace, tenancyResource)
if err != nil {
return nil, err
}
var list kcpv1alpha1.WorkspaceList
if err := r.Get().Resource("workspaces").Do(ctx).Into(&list); err != nil {
return nil, fmt.Errorf("sweepkcp: list workspaces in %s: %w", clusterhome.RootWorkspace, err)
}
names := make([]string, 0, len(list.Items))
for _, ws := range list.Items {
if ws.Spec.Mount == nil {
names = append(names, ws.Name)
}
}
return names, nil
}
func (w *Worklist) accountDIDs(ctx context.Context, logicalCluster string) ([]string, error) {
r, err := w.resource(logicalCluster, socialwebResource)
if err != nil {
return nil, err
}
var list v1alpha1.AtprotoIdentityList
if err := r.Get().Resource("atprotoidentities").Do(ctx).Into(&list); err != nil {
return nil, fmt.Errorf("sweepkcp: list identities in %s: %w", logicalCluster, err)
}
out := make([]string, 0, len(list.Items))
for _, rec := range list.Items {
if rec.Spec.Scope != v1alpha1.IdentityScopeAccount {
continue
}
if rec.Labels[SweepExemptLabel] == SweepExemptValue {
continue
}
out = append(out, rec.Spec.DID)
}
return out, nil
}
func (w *Worklist) resource(logicalCluster string, gv schema.GroupVersion) (rest.Interface, error) {
cfg := rest.CopyConfig(w.cfg)
cfg.GroupVersion = &gv
cfg.APIPath = "/clusters/" + logicalCluster + "/apis"
cfg.NegotiatedSerializer = w.codecs
r, err := rest.RESTClientForConfigAndClient(cfg, w.http)
if err != nil {
return nil, fmt.Errorf("sweepkcp: %s: %w", logicalCluster, err)
}
return r, nil
}
func newScheme() (*runtime.Scheme, error) {
s := runtime.NewScheme()
if err := v1alpha1.AddToScheme(s); err != nil {
return nil, fmt.Errorf("sweepkcp: %w", err)
}
if err := kcpv1alpha1.AddToScheme(s); err != nil {
return nil, fmt.Errorf("sweepkcp: %w", err)
}
metav1.AddToGroupVersion(s, schema.GroupVersion{Version: "v1"})
return s, nil
}
