platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-api/app/refresh_coordinator.go

@@ -0,0 +1,64 @@
+package app
+
+import (
+	refreshcoordpkg "selective-vpn-api/app/refreshcoord"
+	"time"
+)
+
+type refreshStateSnapshot = refreshcoordpkg.Snapshot
+
+type refreshCoordinator struct {
+	inner refreshcoordpkg.Coordinator
+}
+
+func newRefreshCoordinator(freshTTL, backoffMin, backoffMax time.Duration) refreshCoordinator {
+	return refreshCoordinator{inner: refreshcoordpkg.New(freshTTL, backoffMin, backoffMax)}
+}
+
+func (c *refreshCoordinator) setUpdatedAt(at time.Time) {
+	c.inner.SetUpdatedAt(at)
+}
+
+func (c *refreshCoordinator) beginRefresh(now time.Time, force bool, hasData bool) bool {
+	return c.inner.BeginRefresh(now, force, hasData)
+}
+
+func (c *refreshCoordinator) shouldRefresh(now time.Time, force bool, hasData bool) bool {
+	return c.inner.ShouldRefresh(now, force, hasData)
+}
+
+func (c *refreshCoordinator) isStale(now time.Time) bool {
+	return c.inner.IsStale(now)
+}
+
+func (c *refreshCoordinator) finishSuccess(now time.Time) {
+	c.inner.FinishSuccess(now)
+}
+
+func (c *refreshCoordinator) finishError(msg string, now time.Time) {
+	c.inner.FinishError(msg, now)
+}
+
+func (c *refreshCoordinator) snapshot(now time.Time) refreshStateSnapshot {
+	return c.inner.Snapshot(now)
+}
+
+func (c *refreshCoordinator) refreshInProgress() bool {
+	return c.inner.RefreshInProgress()
+}
+
+func (c *refreshCoordinator) nextRetryAt() time.Time {
+	return c.inner.NextRetryAt()
+}
+
+func (c *refreshCoordinator) clearBackoff() {
+	c.inner.ClearBackoff()
+}
+
+func (c *refreshCoordinator) consecutiveErrors() int {
+	return c.inner.ConsecutiveErrors()
+}
+
+func (c *refreshCoordinator) lastError() string {
+	return c.inner.LastError()
+}