@jeremyckahn/farmhand/src/utils/getPeerMetadata.ts

A farming game

import { PEER_METADATA_STATE_KEYS } from '../constants.js'

export const getPeerMetadata = (
  state: farmhand.state
): farmhand.peerMetadata => {
  const reducedState = PEER_METADATA_STATE_KEYS.reduce(
    (acc: Record<string, unknown>, key) => {
      acc[key] = state[key as keyof farmhand.state]

      return acc
    },
    {}
  )

  Object.assign(reducedState, {
    cowOfferedForTrade: state.cowInventory.find(
      ({ id }) => id === state.cowIdOfferedForTrade
    ),
  })

  return (reducedState as unknown) as farmhand.peerMetadata
}