@tradle/models/clean.js

models for tradle apps

#!/usr/bin/env node

var errs

const fs = require('fs')
const path = require('path')
const argv = require('minimist')(process.argv.slice(2), {
  alias: {
    h: 'help',
    f: 'file'
  }
})

const IDENTITY = 'tradle.Identity'
const MESSAGE = 'tradle.Message'

if (argv.help) {
  printUsage()
  process.exit(0)
}

if (!argv.file) {
  printUsage()
  process.exit(1)
}
var path = path.resolve(argv.file)
fs.readdir(path, (err, files) => {
  files.forEach((f) => {
    let idx = f.indexOf('.json')
    if (idx === -1)
      return
    let fn = path + '/' + f
    checkAndOvewrite(fn)
    // let m = require(fn)
    // if (!m.interfaces  ||  m.interfaces.indexOf(MESSAGE) === -1)
    //   return
    // let props = m.properties
    // let overwrite
    // if (props.to && props.to.ref === IDENTITY) {
    //   delete props.to
    //   overwrite = true
    // }
    // if (props.from && props.from.ref === IDENTITY) {
    //   delete props.from
    //   overwrite = true
    // }
    // if (overwrite) {
    //   idx = fn.indexOf('.json')
    //   let newFn = [fn.slice(0, idx), 1, fn.slice(idx)].join('')
    //   let content = JSON.stringify(m, 0, 2)
    //   fs.writeFile(newFn, content, (err) => {
    //     console.error('err:' + err);
    //   })
    // }
  })
})


if (errs && errs.length) {
  throw new Error(errs.join('\n'))
}

function checkAndOvewrite(fn) {
  let m = require(fn)
  if (!m.interfaces  ||  m.interfaces.indexOf(MESSAGE) === -1)
    return
  let props = m.properties
  let overwrite
  if (props.to && props.to.ref === IDENTITY) {
    delete props.to
    overwrite = true
  }
  if (props.from && props.from.ref === IDENTITY) {
    delete props.from
    overwrite = true
  }
  if (!overwrite)
    return
  let idx = fn.indexOf('.json')
  let newFn = [fn.slice(0, idx), 1, fn.slice(idx)].join('')
  let content = JSON.stringify(m, 0, 2)
  fs.writeFile(newFn, content, (err) => {
    if (err) console.error('err:' + err);
  })
}

function printUsage () {
  console.log(`
    Usage:
    Options:
        -h, --help              print usage
        -f, --file              file path where the model resides
  `)
  process.exit(0)
}