Method IntentDebounce

cli/coder/input_guard.go:109–136

IntentDebounce reads-and-discards any input arriving on ch during the configured window. Returns the count of discarded lines. The context is honored: cancellation aborts the wait without blocking.

(ctx context.Context, ch <-chan string)

// configured window. Returns the count of discarded lines. The context is
// honored: cancellation aborts the wait without blocking.
func (g *InputGuard) IntentDebounce(ctx context.Context, ch <-chan string) int {
	if g.debounceWindow <= 0 || ch == nil {
		return 0
	}
	timer := time.NewTimer(g.debounceWindow)
	defer timer.Stop()

	discarded := 0
	for {
		select {
		case <-ctx.Done():
			return discarded
		case <-timer.C:
			if discarded > 0 {
				g.logger.Debug("input guard: debounced spurious input during intent window",
					zap.Int("count", discarded),
					zap.Duration("window", g.debounceWindow))
			}
			return discarded
		case line, ok := <-ch:
			if !ok {
				return discarded
			}
			_ = line
			discarded++
		}
	}
}

// Guard runs the full pre-prompt sequence: flush TTY → drain channel.
// Callers should invoke this BEFORE rendering the UI, then call