// inventory.ts — player inventory and resource ledger
//
// Every grant and spend must produce a ledger entry so the economy is
// fully auditable. The wallet tracks numeric resources (gold, wood, etc.).
// The inventory tracks discrete items and character roster membership.

// Resource IDs — must match the keys used in content/schema/resource.yaml
export const RESOURCE_IDS = [
  "gold",
  "wood",
  "stone",
  "knowledge",
  "experience",
  "mana",
  "diamond",
] as const;

export type ResourceId = typeof RESOURCE_IDS[number];

export function rpcGetInventory(
  ctx: nkruntime.Context,
  logger: nkruntime.Logger,
  nk: nkruntime.Nakama,
  _payload: string
): string {
  // TODO PR 4: read character roster and item inventory from storage
  logger.info(`inventory/get stub called by ${ctx.userId}`);

  return JSON.stringify({
    characters: [],
    items: [],
    message: "Inventory is stubbed. Implement in PR 4.",
  });
}

export function rpcGetResources(
  ctx: nkruntime.Context,
  logger: nkruntime.Logger,
  nk: nkruntime.Nakama,
  _payload: string
): string {
  // Read wallet balances — these are already tracked by Nakama's wallet system
  const account = nk.accountGetId(ctx.userId);
  const wallet = account.wallet ?? {};

  const resources: Record<string, number> = {};
  for (const id of RESOURCE_IDS) {
    resources[id] = Number(wallet[id] ?? 0);
  }

  return JSON.stringify({ resources });
}