suntimes

#!/bin/bash
# Thanks Lubos Rendek - web@linuxconfig.org!

url="https://weather.com/weather/today/l"

download() {

    # find old suntime file if it exists
    previous=$(find "$HOME"/.cache -maxdepth 1 -name "*_$1-sun")
    
    # dl a new suntime 
    timeout 3 curl -s "$url/$1" > "$2"
    while [ ! -s "$2" ] && [ ! -s "$previous" ]; do
        curl -s "$url/$1" > "$2"
    done

    comp=$(cmp "$2" "$previous" 2> /dev/null)
    
    # check if it's the same as the new file
    if [ ! "$comp" ] || [ ! -f $previous ];  then
        rm "$previous" 2> /dev/null
        #echo "new"
        sun_file=$2
    else
        rm "$2"
        #echo "old"
        sun_file=$previous
    fi

    echo "$sun_file"
}

get_times() {
    sun_times=$( cat $1 | sed 's/,/\n/g' | grep -E "sunriseTimeLocal|sunsetTimeLocal" | head -n2 | cut -d'T' -f3 | cut -d'-' -f1 | tr '\n' '\t' )
    sunrise=$( echo $sun_times | awk '{print $1}' | cut -c1-5 )
    sunset=$( echo $sun_times | awk '{print $2}' | cut -c1-5 )
    echo "🌄 $sunrise  🌇 $sunset"
}


main() {
    #obtain a location code from: https://weather.codes/search/
	LOCATION="USCA0830" # bay area
    #LOCATION="USMA0046" # for boston
    for i in "$@"; do
	case $i in
        -l|--location)
        LOCATION=$2
        shift
        shift
        ;;
        *)    
		;;
	esac
	done
    new_sun_file="$HOME/.cache/$(date '+%Y-%m-%d-%H:%M:%S')_$LOCATION-sun"
    #echo $LOCATION
    #download "$LOCATION" "$new_sun_file"
    sun_file=$(download "$LOCATION" "$new_sun_file" | tail -n1)
    #echo $sun_file
    get_times "$sun_file"
}
main "$@"