/** 语句：delay 延迟（value 支持变量，如 "{{stay-duration}}s"；格式：数字+单位 s/m/h） */
const types = ['delay']

function parse(action, parseContext) {
  const parsed = { type: 'delay', value: action.value || action.delay || '0s' }
  return Object.assign({}, action, parsed)
}

async function execute(action, ctx) {
  const raw = action.value || action.delay || '0s'
  const resolved = ctx.replaceVariablesInString && ctx.variableContext
    ? ctx.replaceVariablesInString(String(raw), ctx.variableContext)
    : raw
  const delayMs = ctx.parseDelayString(resolved)
  if (delayMs > 0) await new Promise(r => setTimeout(r, delayMs))
  return { success: true }
}

module.exports = { types, parse, execute }