#!/bin/bash

answer=yes

totalsalary=0

totalit=0

totalhr=0

totalmark=0

countTot=0

countit=0

counthr=0

countmark=0

max=-99999999

min=999999999

avgtot=0

avgit=0

avghr=0

avgmark=0

while [ "$answer" = "yes" ] 
do

clear

read -p "Please enter employee first name : " fn

read -p "Please enter employee last name : " lan

read -p "Please enter salary : " sal

while [ $sal -lt 0 ]
do
echo "value must be positive"
read -p "Please enter salary : " sal
done



read -p "Please enter department name IT/HR/MARK: " dep

echo $dep

while [ "$dep" != "it" ] && [ "$dep" != "hr" ] && [ "$dep" != "mark" ] && [ "$dep" != "IT" ] && [ "$dep" != "HR" ] && [ "$dep" != "MARK" ]
do
echo "value must be IT, HR, or Mark"
read -p "Please enter department name IT/HR/MARK: " dep
done


totalsalary=$(echo "scale=2; $totalsalary+$sal" | bc -l)

let countTot=countTot+1

if [ $sal -lt $min ]

then

min=$sal

fi


if [ $sal -gt $max ]

then

max=$sal

fi

if [ $dep = "IT" ] || [ $dep = "it" ]
then
totalit=$(echo "scale=2; $totalit+$sal" | bc -l)

let countit=countit+1

fi

if [ $dep = "HR" ] || [ $dep = "hr" ]
then

totalhr=$(echo "scale=2; $totalhr+$sal" | bc -l)

let counthr=counthr+1

fi

if [ $dep = "MARK" ] || [ $dep = "mark" ]
then

totalmark=$(echo "scale=2; $totalmark+$sal" | bc -l)

let countmark=countmark+1

fi
#echo "the result is : $totalsalary   $countTot $totalit   $countit $totalhr   $counthr $totalmark   $countmark "

read -p "do you want to play again yes/no " answer

done

avgtot=$(echo "scale=2; $totalsalary/$countTot" | bc -l)


echo "The Total Average salary is $avgtot "


echo "The max salary is $max "

echo "The Min salary is $min"

if [ $countit -ne 0 ]
then
avgit=$(echo "scale=2; $totalit/$countit" | bc -l)
echo "The IT Average salary is $avgit "
else
echo "The IT Average salary is not Available"
fi

if [ $counthr -ne 0 ]
then
avghr=$(echo "scale=2; $totalhr/$counthr" | bc -l)
echo "The HR Average salary is $avghr "
else
echo "The HR Average salary is not Available"
fi

if [ $countmark -ne 0 ]
then
avgmark=$(echo "scale=2; $totalmark/$countmark" | bc -l)
echo "The Marketing Average salary is $avgmark "
else
echo "The Marketing Average salary is not Available"
fi