package main

import (
	"context"

	"github.com/kami/maven/internal/router"
)

// commandProhibitionReply is deliberately operation-neutral. At this boundary
// Maven may know only that the user denied authority, not whether the model
// would have called it a reminder, board transition, local tool or Hexis act.
const commandProhibitionReply = "хорошо, не буду."

// resolveCommandProhibition is the first mutation boundary in a turn. It runs
// before a parked clarify answer or candidate selection can consume the words,
// and before any route/model is consulted. A direct prohibition is complete in
// itself: it needs no target lookup and makes no external call.
//
// A parked clarify request is unrelated state. Preserve it and say the pending
// question again, using the same bounded suspend policy as every other side
// request. Candidate lists likewise remain untouched; no ordinal was selected.
func (h *reactiveHandler) resolveCommandProhibition(ctx context.Context, text string) (string, bool) {
	if !router.IsCommandProhibition(text) {
		return "", false
	}
	// A later bare "да" must not revive authority the user has just revoked.
	// Confirmation slots are all mutation authority and are process-local, so
	// clearing the three under their shared mutex is both conservative and
	// atomic. Clarify questions and candidate lists are not authority and stay.
	h.mu.Lock()
	h.pending = nil
	h.pendingHexis = nil
	h.pendingRoutine = nil
	h.mu.Unlock()
	if h.clarifyStore != nil {
		if q := h.clarifyStore.Get(dialogueIDOf(ctx), h.now()); q != nil {
			h.noteSuspended(ctx, q)
		}
	}
	return commandProhibitionReply, true
}

// refusesCommand is the defense-in-depth form for execution entry points which
// can also be called with a reconstructed or test decision outside runTurn.
// The sentinel cannot be renamed into an enabled function, and the original
// utterance remains the authority even when a model rewrites Slots.Text.
func refusesCommand(dec router.Decision) bool {
	return dec.Slots.Fn == router.ProhibitedActFn || router.IsCommandProhibition(dec.Utterance)
}