import buildWhereQuery from '../util/buildWhereQuery.js'

export async function cypherCount (label, opts) {
  const { where } = opts || {}

  const cypherQuery = []

  cypherQuery.push(`MATCH (node:${label})`)

  if (where) {
    cypherQuery.push(`WHERE ${buildWhereQuery(where, { prefix: 'node.' })}`)
  }

  // @todo support multiple returns
  cypherQuery.push('RETURN COUNT(node) as count')

  return this.exec1(cypherQuery.join('\n')).then(res => res?.count || 0)
}