const fs = require( 'fs' )

const begin = '|'
const removingThis = '|DT'
const file = './input.txt'

const readFile = ( file ) => fs.readFileSync( file, { encoding: 'utf8' } )
const splitingByLines = ( text ) => text.split( '\n' )
const splitByColumn = ( text ) => text.split( '|' )
const forGetColumns = ( line ) => line.startsWith( '|DT' )

const toColumns = line =>
  line.split( '|' )
    .map( col => col.trim() )
    .filter( col => col != '' )

const getHeader = ( text ) =>
  splitingByLines( text )
    .filter( forGetColumns )
    .map( toColumns )[ 0 ]

const fileOpen = readFile( file )
const header = getHeader( fileOpen )

const toFormatedText = ( columns ) => ( obj, header, i ) =>
  Object.assign( obj, { [ header ]: columns[ i ] } )

const getColumns = ( line ) =>
  splitByColumn( line ).slice( 1 ).map( col => col.trim() )

const filterMyLinesWith = ( begin, removingThis ) => ( list ) =>
  list.filter( line => line.startsWith( begin ) && !line.startsWith( removingThis ) )
      .map( line => line.replace( '\r', '' ) )
      .map( line => header.reduce( toFormatedText( getColumns( line ) ), {} ) )

const getLinesWith = ( begin, removingThis ) => ( file ) =>
  filterMyLinesWith( begin, removingThis )
                    ( splitingByLines( readFile( file ) ) )

const result = getLinesWith( begin, removingThis )( file )

console.log( result )