Combine current facts with native Traitor decisions

components/mixed-traitor-fields.tsx

@@ -0,0 +1,53 @@
+'use client';
+
+import type { GameView } from '@/game/engine';
+import type { MixedActionExpression } from '@/game/mixed-action-question';
+import {
+  MIXED_TRAITOR_MAX_DEPTH, MIXED_TRAITOR_MAX_LEAVES, parseTraitorActionClaim, type TraitorActionClaim,
+} from '@/game/mixed-traitor-question';
+import { MixedActionFields, mixedActionInputError, type MixedActionConfig } from './mixed-action-fields';
+
+/** Question authors choose an original native declaration, never its private
+ * physical eligibility or the branch needed to honor the aggregate answer. */
+const config: MixedActionConfig<TraitorActionClaim> = {
+  prefix: 'mixed-traitor',
+  legend: 'Mixed current-fact / this battle’s Traitor declaration',
+  actionLabel: 'Traitor declaration condition',
+  actionTiming: 'Traitor declaration · this revealed battle',
+  actionHelp: <>Traitor conditions concern the respondent’s one original Reveal or decline declaration in this revealed battle,
+    including a native Harkonnen declaration for an ally. Current facts are snapshotted at the answer.
+    An unknown current fact uses the conservative declaration commitment that guarantees the whole answer;
+    if no such answer is possible, the answer is I don’t know. A constant whole answer needs no declaration commitment.
+    The original declaration fulfills a remaining commitment before a later Karama or betrayal response can prevent its effect.
+    Native voter eligibility and physical Traitor rules still apply.</>,
+  fallbackError: 'Choose a current fact and a Traitor declaration condition.',
+  maxLeaves: MIXED_TRAITOR_MAX_LEAVES,
+  maxDepth: MIXED_TRAITOR_MAX_DEPTH,
+  newAction: () => ({ call: true }),
+  parseAction: value => parseTraitorActionClaim(value),
+  renderAction: ({ value, id, disabled, onChange }) => <>
+    <label htmlFor={`${id}-call`}>Traitor declaration</label>
+    <select id={`${id}-call`} value={value.call ? 'reveal' : 'decline'} disabled={disabled}
+      aria-invalid={typeof value.call !== 'boolean'} onChange={event => {
+        if (event.currentTarget.value === 'reveal') onChange({ call: true });
+        if (event.currentTarget.value === 'decline') onChange({ call: false });
+      }}>
+      <option value="reveal">Reveal traitor</option>
+      <option value="decline">Decline traitor</option>
+    </select>
+  </>,
+};
+
+export function mixedTraitorInputError(value: unknown, game: GameView, target: string): string | null {
+  return mixedActionInputError(value, game, target, config);
+}
+
+export function MixedTraitorFields(props: {
+  value: MixedActionExpression<TraitorActionClaim>;
+  game: GameView;
+  target: string;
+  disabled: boolean;
+  onChange: (expression: MixedActionExpression<TraitorActionClaim>) => void;
+}) {
+  return MixedActionFields({ ...props, config });
+}