import vine from '@vinejs/vine'

function isValidJsonValue(value: any): boolean {
  if (value === null) return true
  if (['string', 'number', 'boolean'].includes(typeof value)) return true

  if (Array.isArray(value)) {
    return value.every(isValidJsonValue)
  }

  if (typeof value === 'object' && Object.prototype.toString.call(value) === '[object Object]') {
    return Object.values(value).every(isValidJsonValue)
  }

  return false
}

export const anyJsonRule = vine.createRule((value, _options, field) => {
  if (value === undefined || value === null) {
    return
  }

  if (!isValidJsonValue(value)) {
    field.report('Not valid JSON in {{ field }}', 'anyJson', field)
  }
})