/** 语句：try：须含 try、success、fail 三个数组（可为 []）；可选 continueAfterFail */
const { assertStrictKeys } = require('../action-schema.js')
const types = ['try']

function parse (action, parseContext) {
  const path = parseContext.actionPath || 'try'
  assertStrictKeys(action, ['type', 'try', 'success', 'fail', 'continueAfterFail'], path)
  if (!Array.isArray(action.try)) {
    throw new Error(`${path}: try 须包含数组 try`)
  }
  if (!Array.isArray(action.success)) {
    throw new Error(`${path}: try 须包含数组 success（无成功后续写 []）`)
  }
  if (!Array.isArray(action.fail)) {
    throw new Error(`${path}: try 须包含数组 fail（无失败处理写 []）`)
  }
  const out = {
    type: 'try',
    try: parseContext.parseActions(action.try, 'try'),
    success: parseContext.parseActions(action.success, 'success'),
    fail: parseContext.parseActions(action.fail, 'fail'),
  }
  if (action.continueAfterFail === true) out.continueAfterFail = true
  return out
}

async function execute() {
  return { success: true }
}

module.exports = { types, parse, execute }