File size: 1,029 Bytes
970fc3e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | function createAuthoringAccess(makeId) {
const sessions = /* @__PURE__ */ new Map();
function check(input, write = false) {
const ref = input?.authoringSession;
if (!ref) return null;
const session = sessions.get(ref.id);
if (!session || session.epoch !== ref.epoch) throw Error("Operation expired. Please retry.");
if (write && session.mode !== "edit") throw Error("Enter Edit mode to change the scene");
return session;
}
return { check, transition(input) {
if (!["edit", "explore"].includes(input.mode)) throw Error("Invalid mode");
let session = input.id ? sessions.get(input.id) : null;
if (input.id && (!session || session.epoch !== input.epoch)) throw Error("Mode changed. Please refresh.");
session = { id: session?.id || makeId(), mode: input.mode, epoch: (session?.epoch || 0) + 1 };
sessions.set(session.id, session);
if (sessions.size > 100) sessions.delete(sessions.keys().next().value);
return { ...session };
} };
}
export {
createAuthoringAccess
};
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