fish-js/src/display.js

a cli thing for sorting out personal finance

var vv = require('drainpipe')
var map = require('lodash').map
var each = require('lodash').each
var reduce = require('lodash').reduce
var chalk = require('chalk')
var numeral = require('numeral')
var Table = require('cli-table')

function display(data) {
  var table = new Table({
    head: ['tag', 'credit', 'debit', 'balance'],
    colAligns: ['left', 'right', 'right', 'right'],
    style: {
      head: ['bold', 'magenta'],
      border: ['black']
    }
  })

  vv(data)(map, function (d, k) {
    return row(k, d)
  })(pushTo, table)

  table.push(
    row('total', {
      debit: sum(data, 'debit'),
      credit: sum(data, 'credit'),
      balance: sum(data, 'balance')
    })
  )

  console.log(table.toString())
}

function sum(data, name) {
  return vv(data)(map, function (d) {
    return d[name]
  })(reduce, add, 0)()
}

function add(a, b) {
  return a + b
}

function row(tag, summary) {
  tag = tag || ''

  return [
    chalk.bold(tag),
    val(summary.credit),
    val(summary.debit),
    balanceVal(summary.balance)
  ]
}

function val(v) {
  return numeral(v).format('0,0.00')
}

function balanceVal(v) {
  var s = val(v)
  v = +v

  if (v > 0) return chalk.green(s)
  if (v < 0) return chalk.red(s)
  return s
}

function pushTo(data, arr) {
  each(data, function (d) {
    arr.push(d)
  })
}

module.exports = display