// merge-test.js
module.exports = callback => {
  const Gun = require('gun')
  const gun = Gun()
  const key = Math.random().toString(36).slice(2)
  // write initial data
  gun.get(key).put({ data: true }, res1 => {
    if (res1.err) {
      return callback(res1.err, null)
    }

    // add to it
    gun.get(key).put({ success: true }, res2 => {
      if (res2.err) {
        return callback(res2.err, null)
      }

      // verify data merge
      gun.get(key).val(value => {
        if (value.success && value.success === true && value.data && value.data === true) {
          return callback(null, {value: true})
        } else {
          return callback(null, {value: false})
        }
      })
    })
  })
}

//run-multiple.js
let jobs = 100
let done = 0
let fail = 0
let success = 0

function printResult () {
  console.log(`Fail: ${fail}`)
  console.log(`Success: ${success}`)
  console.log('\n')
}

function doTest () {
  const mergeTest = require('./merge-test')
  mergeTest((error, result) => {
    if (error) {
      console.error(error)
    } else {
      if (result.value === true) {
        success++
      } else {
        fail++
      }
      printResult()  
    }
  })
}

while (jobs > done) {
  done++
  console.log(`Running ${done} of ${jobs}`)
  doTest()
}