All files / features/pairing usePairing.ts

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import { create } from "zustand";
 
import { type PairingSnapshot, UNPAIRED } from "@/features/auth/hydrate";
 
/**
 * Pairing state derived from the `couples` document — `members: [uidA, uidB]`, no
 * gendered roles (decision record §4). The auth bootstrap is the single writer:
 * it subscribes to the couple doc and pushes snapshots in via `hydrate`. Pairing
 * itself is server-authoritative (the `pairWithCode` Cloud Function).
 */
type PairingState = PairingSnapshot & {
  hydrate: (snapshot: PairingSnapshot) => void;
  reset: () => void;
};
 
export const usePairing = create<PairingState>((set) => ({
  ...UNPAIRED,
  hydrate: (snapshot) => set(snapshot),
  reset: () => set(UNPAIRED),
}));