#!/bin/sh -Cefu


set -Cefu


cd /home/ketas/files/nps || exit 1


export TZ=Europe/Tallinn


_tomorrow()
{
	date -j -v +1d -f '%F %T' "`date +%F` 00:00:00" +%F
}


_start_of_day()
{
	local date="$1"
	
	
	date -j -Iseconds -f '%F %T' "$date 00:00:00"
}


_end_of_day()
{
	local date="$1"
	
	
	date -j -Iseconds -f '%F %T' "$date 23:59:59"
}


_start_of_year()
{
	local year="$1"
	
	
	date -j -Iseconds -f '%F %T' "$year-01-01 00:00:00"
}


_end_of_year()
{
	local year="$1"
	
	
	date -j -Iseconds -f '%F %T' "$year-12-31 23:59:59"
}


arg="${1:-}"


if [ ! "$arg" ]
then
	arg="`_tomorrow`"
fi


case "$arg"
in
	*-*-*)
		date -j -f %F "$arg" > /dev/null
		
		
		start_date="`_start_of_day \"$arg\"`"
		
		end_date="`_end_of_day \"$arg\"`"
		;;
	*)
		date -j -f %Y "$arg" > /dev/null
		
		
		start_date="`_start_of_year \"$arg\"`"
		
		end_date="`_end_of_year \"$arg\"`"
		;;
esac


start_date="`urlencode \"$start_date\"`"

end_date="`urlencode \"$end_date\"`"


url="https://dashboard.elering.ee/api/nps/price?start=$start_date&end=$end_date"


output_file=-


case "$*"
in
	*save*) output_file="data/$arg.json" ;;
esac


fetch -q -o "$output_file" "$url"