wisski-cloud-distillery/internal/dis/component/control/home/instances.go
2023-01-09 14:11:42 +01:00

86 lines
1.7 KiB
Go

package home
import (
"context"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/status"
"golang.org/x/sync/errgroup"
)
// loadInstances loads all the instances into the home route
func (home *Home) loadInstances(ctx context.Context) ([]status.WissKI, error) {
// find all the WissKIs
wissKIs, err := home.Dependencies.Instances.All(ctx)
if err != nil {
return nil, err
}
instances := make([]status.WissKI, len(wissKIs))
// determine their infos
var eg errgroup.Group
for i, instance := range wissKIs {
i := i
wissKI := instance
eg.Go(func() (err error) {
instances[i], err = wissKI.Info().Information(ctx, false)
return
})
}
eg.Wait()
// and return the new instances
return instances, nil
}
// UpdateInstanceList updates the instances list of the home struct
type UpdateInstanceList struct {
component.Base
Dependencies struct {
Home *Home
}
}
var (
_ component.Cronable = (*UpdateInstanceList)(nil)
)
func (*UpdateInstanceList) TaskName() string {
return "instance list"
}
func (ul *UpdateInstanceList) Cron(ctx context.Context) error {
names, err := ul.Dependencies.Home.instanceMap(ctx)
if err != nil {
return err
}
ul.Dependencies.Home.instanceNames.Set(names)
return nil
}
type UpdateHome struct {
component.Base
Dependencies struct {
Home *Home
}
}
var (
_ component.Cronable = (*UpdateHome)(nil)
)
func (ur *UpdateHome) TaskName() string {
return "home instances fetch"
}
func (ur *UpdateHome) Cron(ctx context.Context) error {
instances, err := ur.Dependencies.Home.loadInstances(ctx)
if err != nil {
return err
}
ur.Dependencies.Home.homeInstances.Set(instances)
return nil
}