Hello world 👋

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/cache.go

@@ -0,0 +1,50 @@
+package app
+
+import (
+	"time"
+
+	"git.kebcloud.no/keb/lazysecrets/internal/provider"
+)
+
+// cacheTTL is how long cached metadata is shown without reloading. Older
+// entries are still shown immediately, then reloaded in the background.
+const cacheTTL = 2 * time.Minute
+
+// cache holds metadata: never secret values or errors. It's kept between
+// runs in the cache file (persist.go).
+type cache struct {
+	containers map[string]entry[[]provider.Container] // by source key
+	objects    map[string]entry[[]provider.Object]    // by container key (ID|type)
+	details    map[string]entry[provider.Object]      // Describe results by ID@version
+	// cursor remembers the selected child per parent key, so returning to
+	// a subscription or vault puts the cursor back where it was.
+	cursor map[string]string
+}
+
+type entry[T any] struct {
+	value T
+	at    time.Time
+}
+
+func newCache() cache {
+	return cache{
+		containers: map[string]entry[[]provider.Container]{},
+		objects:    map[string]entry[[]provider.Object]{},
+		details:    map[string]entry[provider.Object]{},
+		cursor:     map[string]string{},
+	}
+}
+
+func (e entry[T]) fresh(now time.Time) bool { return now.Sub(e.at) < cacheTTL }
+
+// detailKey includes the account: the result carries its container, and
+// later requests for the object are routed by it.
+func detailKey(o provider.Object) string {
+	return containerKey(o.Container) + "|" + o.ID + "@" + o.Version
+}
+
+func (c cache) rememberCursor(parent, child string) {
+	if parent != "" && child != "" {
+		c.cursor[parent] = child
+	}
+}