package main

import (
  "fmt"
  "strings"
)

func main() {

  hdr := []string{"empid", "employee", "address", "hours worked",
    "hourly rate", "manager"}
  result := csvHdrCol(hdr)
  fmt.Println("Result:")
  fmt.Println(result)
  fmt.Println()

  hdr2 := []string{"employee", "empid", "hours worked", "address",
    "manager", "hourly rate"}
  result2 := csvHdrCol(hdr2)
  fmt.Println("Result2:")
  fmt.Println(result2)
  fmt.Println()

}

func csvHdrCol(hdr []string) map[int]string {

  csvIdxToCol := make(map[int]string)

  for i, v := range hdr {
    v = strings.TrimSpace(v)
    switch strings.ToLower(v) {
    case "employee", "hours worked", "hourly rate":
      csvIdxToCol[i] = v
    }
  }

  return csvIdxToCol

}