90 lines
2 KiB
Go
90 lines
2 KiB
Go
package home
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import (
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"bytes"
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"context"
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"text/template"
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"time"
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_ "embed"
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"github.com/FAU-CDI/wisski-distillery/internal/component/instances"
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"github.com/FAU-CDI/wisski-distillery/pkg/timex"
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"github.com/tkw1536/goprogram/stream"
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"golang.org/x/sync/errgroup"
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)
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func (home *Home) updateInstances(ctx context.Context, io stream.IOStream) {
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timex.SetInterval(ctx, home.RefreshInterval, func(t time.Time) {
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io.Printf("[%s]: reloading instance list", t.String())
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names, _ := home.instanceMap()
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home.instanceNames.Set(names)
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})
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}
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func (home *Home) instanceMap() (map[string]struct{}, error) {
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wissKIs, err := home.Instances.All()
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if err != nil {
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return nil, err
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}
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names := make(map[string]struct{}, len(wissKIs))
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for _, w := range wissKIs {
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names[w.Slug] = struct{}{}
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}
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return names, nil
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}
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func (home *Home) updateRender(ctx context.Context, io stream.IOStream) {
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timex.SetInterval(ctx, home.RefreshInterval, func(t time.Time) {
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io.Printf("[%s]: reloading home render", t.String())
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bytes, _ := home.homeRender()
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home.homeBytes.Set(bytes)
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})
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}
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//go:embed "home.html"
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var homeHTMLStr string
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var homeTemplate = template.Must(template.New("home.html").Parse(homeHTMLStr))
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func (home *Home) homeRender() ([]byte, error) {
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var context HomeContext
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// setup a couple of static things
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context.Time = time.Now().UTC()
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context.SelfRedirect = home.Config.SelfRedirect.String()
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// find all the WissKIs
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wissKIs, err := home.Instances.All()
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if err != nil {
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return nil, err
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}
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context.Instances = make([]instances.WissKIInfo, len(wissKIs))
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// determine their infos
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var eg errgroup.Group
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for i, instance := range wissKIs {
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i := i
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wissKI := instance
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eg.Go(func() (err error) {
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context.Instances[i], err = wissKI.Info(true)
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return
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})
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}
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eg.Wait()
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// render the template
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var buffer bytes.Buffer
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homeTemplate.Execute(&buffer, context)
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return buffer.Bytes(), nil
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}
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type HomeContext struct {
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Instances []instances.WissKIInfo
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Time time.Time
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SelfRedirect string
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}
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