misode.github.io/src/app/hooks/transformOutput.ts

import { Hook } from '@mcschema/core'

export const transformOutput: Hook<[any], any> = {
  base({}, _, value) {
    return value
  },

  choice({ switchNode }, path, value) {
    return switchNode.hook(this, path, value)
  },

  list({ children }, path, value) {
    if (!Array.isArray(value)) return value
    return value.map((obj, index) =>
      children.hook(this, path.push(index), obj)
    )
  },

  map({ children }, path, value) {
    if (value === undefined) return undefined
    let res: any = {}
    Object.keys(value).forEach(f =>
      res[f] = children.hook(this, path.push(f), value[f])
    )
    return res;
  },

  object({ getActiveFields }, path, value) {
    if (value === undefined || value === null || typeof value !== 'object') {
      return value
    }
    let res: any = {}
    const activeFields = getActiveFields(path)
    Object.keys(activeFields)
      .filter(k => activeFields[k].enabled(path))
      .forEach(f => {
        res[f] = activeFields[f].hook(this, path.push(f), value[f])
      })
    return res
  }
}