Add current-lot Truthtrance bid commitments

components/bid-claim-fields.tsx

@@ -0,0 +1,38 @@
+'use client';
+
+import { parseBidClaim, type BidClaim } from '@/game/bid-promises';
+import { Input } from './ui/input';
+
+export function bidClaimInputError(value: unknown): string | null {
+  try { parseBidClaim(value); return null; }
+  catch (error) { return error instanceof Error ? error.message : 'Choose a positive whole bid minimum.'; }
+}
+
+/** The parent supplies the public current lot; only the minimum is editable. */
+export function BidClaimFields(props: {
+  value: BidClaim;
+  onChange: (claim: BidClaim) => void;
+  disabled?: boolean;
+}) {
+  const error = bidClaimInputError(props.value);
+  return <fieldset className="grid gap-2" disabled={props.disabled} aria-label="Ordinary lot bid condition">
+    <legend>Current ordinary-lot bid</legend>
+    <p>Turn {props.value.turn} · Ordinary lot {props.value.lot}</p>
+    <label htmlFor="truth-bid-minimum">Minimum bid in spice</label>
+    <Input id="truth-bid-minimum" type="number" min={1} max={Number.MAX_SAFE_INTEGER} step={1} required
+      disabled={props.disabled} value={Number.isFinite(props.value.minimum) ? props.value.minimum : ''}
+      aria-invalid={!!error} aria-describedby="truth-bid-help"
+      onChange={event => {
+        if (props.disabled) return;
+        const next = { ...props.value, minimum: event.currentTarget.valueAsNumber };
+        if (bidClaimInputError(next)) return;
+        props.onChange(parseBidClaim(next));
+      }} />
+    {error && <p role="alert">{error}</p>}
+    <p className="fine" id="truth-bid-help">
+      This asks whether you will place at least one bid of this size from now until this lot closes.
+      It does not promise a win. If you win, the original payment rules still apply. Ordinary bank auctions only;
+      optional modules and native special auctions are excluded.
+    </p>
+  </fieldset>;
+}