#!/bin/bash
#przed uruchomieniem nalezy zadeklarowac zmienna srodowiskowa (np declare -x APIXUKEY=<klucz api>) oraz zainstalowac program jq
api=$APIXUKEY
LOCATION="Poznan" 
DYNAMIC=false 
FAHRENHEIT=false
while getopts :l:fd OPT;
do
	case $OPT in
	l) LOCATION="$OPTARG";;
	d) DYNAMIC=true;;
	f) FAHRENHEIT=true;;
	\?) echo "Bledna opcja: -$OPTARG" >&2
     	exit 1
        ;;
        :)echo "Opcja -$OPTARG wymaga argumentu" >&2
        exit 1
        ;;
	esac
done
DATE=$(date -r /tmp/$LOCATION.json +%s)
SYSDATE=$(date +%s)
if [ $[$DATE+300] -lt $SYSDATE ]
then
	 curl "http://api.apixu.com/v1/current.json?key=$api&q=$LOCATION" -o  /tmp/$LOCATION.json -#
		
fi
function weather {

	JSON=$(cat /tmp/$LOCATION.json)
    clear 
if [ $FAHRENHEIT != true ]; then
    echo "Kraj  $(echo $JSON | jq -r '.location.country')"
    echo "Miasto  $(echo $JSON | jq -r '.location.name')"
    echo "Czas lokalny $(echo $JSON | jq -r '.location.localtime')"
    echo "Temperatura  $(echo $JSON | jq -r '.current.temp_c') °C"
    echo "Temperatura odczuwalna  $(echo $JSON | jq -r '.current.feelslike_c') °C"
    echo "Predkosc wiatru  $(echo $JSON | jq -r '.current.wind_kph') km/h"
    echo "Cisnienie  $(echo $JSON | jq -r '.current.pressure_mb') hPa"
    echo "Opad  $(echo $JSON | jq -r '.current.precip_mm') mm"
    echo "Wilgotnosc  $(echo $JSON | jq -r '.current.humidity') %"
    echo "Ostatnia aktualizacja  $(echo $JSON | jq -r '.current.last_updated')"
else
    echo "Kraj  $(echo $JSON | jq -r '.location.country')"
    echo "Miasto  $(echo $JSON | jq -r '.location.name')"
    echo "Czas lokalny $(echo $JSON | jq -r '.location.localtime')"
    echo "Temperatura  $(echo $JSON | jq -r '.current.temp_f') °F"
    echo "Temperatura odczuwalna  $(echo $JSON | jq -r '.current.feelslike_f') °F"
    echo "Predkosc wiatru  $(echo $JSON | jq -r '.current.wind_mph') mph"
    echo "Cisnienie  $(echo $JSON | jq -r '.current.pressure_in') inHg"
    echo "Opad  $(echo $JSON | jq -r '.current.precip_in') inches"
    echo "Wilgotnosc  $(echo $JSON | jq -r '.current.humidity') %"
    echo "Ostatnia aktualizacja  $(echo $JSON | jq -r '.current.last_updated')"
fi

}
if $DYNAMIC == true 
	then
	for ((;;)); 
	do
		weather
		sleep 300
	done
else

	weather
fi