#!/bin/bash

file="cov.txt"
fileold="cov.txt.old"

update() {
	mv ~/.cache/cov.txt ~/.cache/cov.txt.old
	curl -s https://covid19.go.id/ | grep -A1 "div>Positif" | cut -d">" -f4 | cut -d"<" -f1 | sed "1 s/^/Pos /;2 s/^/Sem /" > ~/.cache/cov.txt
}

helpFunction()
{
   echo ""
   echo "Usage: $0 [Option]"
   echo -e "\t-u Force update covid report"
   echo -e "\t-p Print postive cases of covid-19 (Indonesia)"
   echo -e "\t-s Print cured cases of covid-19 (Indonesia)"
   echo -e "\t-H Print covid report in human format"
   echo -e "\t-h Show this message"
   exit 1 # Exit script after printing help
}

print_Pos() {
	printf "%s\n" $(grep "Pos" ~/.cache/$file | sed "s/Pos //")
}

print_Sem() {
	printf "%s\n" $(grep "Sem" ~/.cache/$file | sed "s/Sem //")
}

print_Hum() {
	print_Pos | sed '1 s/^/Positive: /g' && print_Sem | sed '1 s/^/Cured: /g' && echo -e "\nSource: https://covid19.go.id/"
}

rate_Pos() {
	newPos=$(cov -p | sed 's/[.]//g')
	oldPos=$(cov -op | sed 's/[.]//g')
	((ratePos=$newPos-$oldPos))
	printf "%s\n" $ratePos
}

rate_Sem() {
	newPos=$(cov -s | sed 's/[.]//g')
	oldPos=$(cov -os | sed 's/[.]//g')
	((ratePos=$newPos-$oldPos))
	printf "%s\n" $ratePos
}

[ ! "$(stat -c %y ~/.cache/cov.txt 2> /dev/null | cut -d' ' -f1)" = "$(date +"%Y-%m-%d")" ] && update 

while getopts "oupshHrR" opt
do
	case "$opt" in
		R ) rate_Sem ;;
		r ) rate_Pos ;;
		o ) file="$fileold";;
		u ) update && echo "Covid report has been updated";;
		p ) print_Pos ;;
		s ) print_Sem ;;
		H ) print_Hum ;;
		h ) helpFunction ;;
		? ) helpFunction ;; # Print helpFunction in case parameter is non-existent
	esac
done