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package events
import (
"context"
"errors"
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
eventsv1alpha1 "github.com/johnandersen777/socialweb-computer-kcp/api/events/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/api/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/atprotorecord"
"github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/atprotorecordwatch"
"github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/runtime/kube"
"github.com/johnandersen777/socialweb-computer-kcp/internal/eventstream"
)
type ClientFor func(workspace string) (client.Client, error)
var (
_ atprotorecordwatch.Children = recordWatchChildren{}
_ atprotorecordwatch.Repos = recordWatchRepos{}
)
func RecordWatch(clientFor ClientFor) (atprotorecordwatch.Children, atprotorecordwatch.Repos, atprotorecordwatch.ValueReader) {
return recordWatchChildren{clientFor: clientFor}, recordWatchRepos{clientFor: clientFor}, recordWatchValues(clientFor)
}
func (f ClientFor) client(workspace string) (client.Client, error) {
if f == nil {
return nil, errors.New("events: the record watch has no workspace clients")
}
return f(workspace)
}
type recordWatchChildren struct {
clientFor ClientFor
}
func (r recordWatchChildren) ApplyEventStream(ctx context.Context, workspace string, obj *eventsv1alpha1.EventStream) error {
return r.apply(ctx, workspace, obj)
}
func (r recordWatchChildren) ApplyEventSource(ctx context.Context, workspace string, obj *eventsv1alpha1.EventSource) error {
return r.apply(ctx, workspace, obj)
}
func (r recordWatchChildren) ApplyPdsEventSource(ctx context.Context, workspace string, obj *eventsv1alpha1.PdsEventSource) error {
return r.apply(ctx, workspace, obj)
}
func (r recordWatchChildren) EventStreams(ctx context.Context, workspace, watch string) ([]eventsv1alpha1.EventStream, error) {
c, err := r.clientFor.client(workspace)
if err != nil {
return nil, err
}
var list eventsv1alpha1.EventStreamList
if err := c.List(ctx, &list, client.MatchingLabels{eventstream.RecordWatchLabel: watch}); err != nil {
return nil, err
}
return list.Items, nil
}
func (r recordWatchChildren) DeleteEventStream(ctx context.Context, workspace, name string) error {
c, err := r.clientFor.client(workspace)
if err != nil {
return err
}
obj := &eventsv1alpha1.EventStream{ObjectMeta: metav1.ObjectMeta{Name: name}}
if err := c.Delete(ctx, obj, client.PropagationPolicy(metav1.DeletePropagationBackground)); err != nil && !apierrors.IsNotFound(err) {
return err
}
return nil
}
func (r recordWatchChildren) apply(ctx context.Context, workspace string, obj client.Object) error {
c, err := r.clientFor.client(workspace)
if err != nil {
return err
}
gvk, err := apiutil.GVKForObject(obj, c.Scheme())
if err != nil {
return err
}
if err := kube.ApplyWith(ctx, c, obj, kube.ApplyOptions{FieldManager: atprotorecordwatch.FieldManager, Force: true}); err != nil {
return fmt.Errorf("events: applying %s %s in %s: %w", gvk.Kind, obj.GetName(), workspace, err)
}
return nil
}
type recordWatchRepos struct {
clientFor ClientFor
}
func (r recordWatchRepos) AtprotoRepo(ctx context.Context, workspace, name string) (*v1alpha1.AtprotoRepo, error) {
return get[v1alpha1.AtprotoRepo](ctx, r.clientFor, workspace, name)
}
func (r recordWatchRepos) LocalRepo(ctx context.Context, workspace, name string) (*v1alpha1.LocalRepo, error) {
return get[v1alpha1.LocalRepo](ctx, r.clientFor, workspace, name)
}
func (r recordWatchRepos) RemoteRepo(ctx context.Context, workspace, name string) (*v1alpha1.RemoteRepo, error) {
return get[v1alpha1.RemoteRepo](ctx, r.clientFor, workspace, name)
}
func get[T any, P interface {
*T
client.Object
}](ctx context.Context, clientFor ClientFor, workspace, name string) (*T, error) {
c, err := clientFor.client(workspace)
if err != nil {
return nil, err
}
out := P(new(T))
if err := c.Get(ctx, client.ObjectKey{Name: name}, out); err != nil {
return nil, err
}
return (*T)(out), nil
}
func recordWatchValues(clientFor ClientFor) atprotorecordwatch.ValueReader {
return func(ctx context.Context, workspace string, from v1alpha1.AtprotoValueFrom) (map[string]any, error) {
c, err := clientFor.client(workspace)
if err != nil {
return nil, err
}
gvk, err := c.RESTMapper().KindFor(atprotorecord.ReferenceResource(from))
if err != nil {
return nil, err
}
mapping, err := c.RESTMapper().RESTMapping(gvk.GroupKind(), gvk.Version)
if err != nil {
return nil, err
}
key := client.ObjectKey{Name: from.Name}
if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
key.Namespace = from.Namespace
}
return kube.GetWith(ctx, c, gvk, key)
}
}
