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package childapplication
import (
"context"
"sort"
"strings"
"sigs.k8s.io/controller-runtime/pkg/client"
policyv1alpha1 "github.com/johnandersen777/socialweb-computer-kcp/api/policy/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/api/v1alpha1"
ctlruntime "github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/runtime"
)
const (
PolicyExport = "policy"
coreUnitPrefix = "socialweb-core-"
coreUnitSuffix = "-dev.service"
coreObjectPrefix = "core-"
coreObjectSuffix = "-dev"
)
type component struct {
v1alpha1.ChildApplicationComponent
failed bool
}
type componentKind struct {
read func(ctx context.Context, l Lister, workspace string) ([]component, error)
watch func(mapFunc func(ctx context.Context, src ctlruntime.Request) []ctlruntime.Request) ctlruntime.Option
}
func kindOf[L any, PL interface {
*L
client.ObjectList
}, T any, PT interface {
*T
ctlruntime.Object
}](export, kind string, items func(*L) []T, state func(PT) (bool, bool)) componentKind {
return componentKind{
read: func(ctx context.Context, l Lister, workspace string) ([]component, error) {
var list L
if err := l.List(ctx, workspace, PL(&list)); err != nil {
return nil, err
}
src := items(&list)
out := make([]component, 0, len(src))
for i := range src {
obj := PT(&src[i])
ready, failed := state(obj)
out = append(out, component{ChildApplicationComponent: v1alpha1.ChildApplicationComponent{Kind: kind, Name: obj.GetName(), Ready: ready}, failed: failed})
}
return out, nil
},
watch: func(mapFunc func(ctx context.Context, src ctlruntime.Request) []ctlruntime.Request) ctlruntime.Option {
return ctlruntime.WatchesIn(export, func(ctx context.Context, src ctlruntime.Request, _ PT) []ctlruntime.Request {
return mapFunc(ctx, src)
})
},
}
}
func componentState(s v1alpha1.ComponentStatus) (bool, bool) {
return s.Ready, s.Phase == v1alpha1.ComponentPhaseFailed
}
var componentKinds = []componentKind{
kindOf(Export, "Bidder", func(l *v1alpha1.BidderList) []v1alpha1.Bidder { return l.Items },
func(o *v1alpha1.Bidder) (bool, bool) { return componentState(o.Status.ComponentStatus) }),
kindOf(Export, "GuestControlPlane", func(l *v1alpha1.GuestControlPlaneList) []v1alpha1.GuestControlPlane { return l.Items },
func(o *v1alpha1.GuestControlPlane) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "Pds", func(l *v1alpha1.PdsList) []v1alpha1.Pds { return l.Items },
func(o *v1alpha1.Pds) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "Requester", func(l *v1alpha1.RequesterList) []v1alpha1.Requester { return l.Items },
func(o *v1alpha1.Requester) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "GatewayAPI", func(l *v1alpha1.GatewayAPIList) []v1alpha1.GatewayAPI { return l.Items },
func(o *v1alpha1.GatewayAPI) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "SshServer", func(l *v1alpha1.SshServerList) []v1alpha1.SshServer { return l.Items },
func(o *v1alpha1.SshServer) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "Plc", func(l *v1alpha1.PlcList) []v1alpha1.Plc { return l.Items },
func(o *v1alpha1.Plc) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "Relay", func(l *v1alpha1.RelayList) []v1alpha1.Relay { return l.Items },
func(o *v1alpha1.Relay) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "IngressProxy", func(l *v1alpha1.IngressProxyList) []v1alpha1.IngressProxy { return l.Items },
func(o *v1alpha1.IngressProxy) (bool, bool) { return componentState(o.Status) }),
kindOf(Export, "DispatcherTLS", func(l *v1alpha1.DispatcherTLSList) []v1alpha1.DispatcherTLS { return l.Items },
func(o *v1alpha1.DispatcherTLS) (bool, bool) { return componentState(o.Status) }),
kindOf(PolicyExport, "PolicyEngine", func(l *policyv1alpha1.PolicyEngineList) []policyv1alpha1.PolicyEngine { return l.Items },
func(o *policyv1alpha1.PolicyEngine) (bool, bool) {
return o.Status.Ready, o.Status.Phase == policyv1alpha1.PolicyEngineFailed
}),
}
func (c *Controller) observeCore(ctx context.Context, instance string) (string, bool, bool, error) {
var list v1alpha1.HostProcessList
if err := c.objects.List(ctx, DevWorkspacePrefix+":"+instance, &list); err != nil {
if absent(err) {
return "", false, false, nil
}
return "", false, false, err
}
for i := range list.Items {
item := &list.Items[i]
unit := item.Spec.Unit
if !coreUnit(unit, item.Name) {
continue
}
ref := unit
if ref == "" {
ref = item.Name
}
phase := item.Status.Phase
ready := phase == v1alpha1.HostProcessPhaseRunning
failed := phase == v1alpha1.HostProcessPhaseFailed || phase == v1alpha1.HostProcessPhaseLost
return ref, ready, failed, nil
}
return "", false, false, nil
}
func coreUnit(unit, name string) bool {
if strings.HasPrefix(unit, coreUnitPrefix) && strings.HasSuffix(unit, coreUnitSuffix) {
return true
}
return strings.HasPrefix(name, coreObjectPrefix) && strings.HasSuffix(name, coreObjectSuffix)
}
func (c *Controller) observeComponents(ctx context.Context, workspace string) ([]v1alpha1.ChildApplicationComponent, bool, bool, error) {
var out []v1alpha1.ChildApplicationComponent
failed := false
for _, kind := range componentKinds {
items, err := kind.read(ctx, c.objects, workspace+":"+ComponentWorkspace)
if absent(err) {
continue
}
if err != nil {
return nil, false, false, err
}
for _, item := range items {
failed = failed || item.failed
out = append(out, item.ChildApplicationComponent)
}
}
sortComponents(out)
return out, failed, allReady(out), nil
}
func fallbackComponents(appStatus *v1alpha1.NetworkAppStatus) ([]v1alpha1.ChildApplicationComponent, bool, bool) {
if appStatus == nil {
return nil, false, false
}
out := make([]v1alpha1.ChildApplicationComponent, 0, len(appStatus.Components))
failed := false
for _, component := range appStatus.Components {
if component.Phase == string(v1alpha1.ComponentPhaseFailed) {
failed = true
}
out = append(out, v1alpha1.ChildApplicationComponent{Kind: component.Kind, Name: component.Name, Ready: component.Ready})
}
sortComponents(out)
return out, failed, allReady(out)
}
func sortComponents(components []v1alpha1.ChildApplicationComponent) {
sort.Slice(components, func(i, j int) bool {
if components[i].Kind != components[j].Kind {
return components[i].Kind < components[j].Kind
}
return components[i].Name < components[j].Name
})
}
func allReady(components []v1alpha1.ChildApplicationComponent) bool {
if len(components) == 0 {
return false
}
for _, component := range components {
if !component.Ready {
return false
}
}
return true
}
