scf_public.js

const fs = require('fs')
const path = require('path')
const {makeRetStatic, makeRetJson,CONST:{API_ROOT,PUBLIC_ROOT} } = require('./lib/util')
const { UNCAUGHT_ERROR } = require('./lib/errorCode')
const {functionName} = require('./config')

//eslint-disable-next-line no-unused-vars
module.exports.main_handler = async function(event, context, callback) {
  // console.log(event.path)
  // console.log(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''))) 
  // console.log(fs.existsSync(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''))))
  if (event 
    && event.queryString 
    && event.queryString.method 
    && (
      fs.existsSync(path.resolve(API_ROOT, event.queryString.method))
      && fs.statSync(path.resolve(API_ROOT, event.queryString.method)).isDirectory() 
      && fs.existsSync(path.resolve(API_ROOT, event.queryString.method, 'index.js'))
    ) 
    || (fs.existsSync(path.resolve(API_ROOT, `${event.queryString.method}.js`)))
  ) {
    try {
      let handler
      if (
        fs.existsSync(path.resolve(API_ROOT, event.queryString.method)) 
        && fs.statSync(path.resolve(API_ROOT, event.queryString.method)).isDirectory()
      ) {
        handler = require(path.resolve(API_ROOT, event.queryString.method, 'index.js'))
      } else {
        handler = require(path.resolve(API_ROOT, `${event.queryString.method}.js`))
      }
      let param = event.body && event.body.param || JSON.parse(event.queryString && event.queryString.param || '{}')
      return await handler(param)
    } catch (err) {
      console.error(err)
      return makeRetJson({
        code: UNCAUGHT_ERROR,
        message: err.message
      })
    }
  }if(event 
    && event.path 
    && (
      fs.existsSync(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''))) 
      || fs.existsSync(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''),'index.html')))){
    if(fs.existsSync(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''),'index.html'))){
      let ret = await makeRetStatic(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''),'index.html'))
      return ret
    }
    let ret = await makeRetStatic(path.resolve(PUBLIC_ROOT,event.path.replace(`/${functionName}/`,''))) 
    return ret
  } else {
    let ret = await makeRetStatic(path.resolve(PUBLIC_ROOT,'index.html'))
    return ret  
  }
}