wttr

#!/bin/bash

CITY=Moscow

DETAILED_INFO_WIDTH=124
SHORT_INFO_WIDTH=26
TERMINAL_WIDTH=$(tput cols)

MAX_REQUEST_TIME=0.5

whitespaces() {
    local amount
    local spaces

    amount=$[ ($1 - $2)/2 ]
    printf "%${amount}s" ""
}


WTTR=$(curl -m ${MAX_REQUEST_TIME} -s wttr.in/$CITY)

if [ $? -eq 0 ]
then
    if [ $TERMINAL_WIDTH -ge $DETAILED_INFO_WIDTH ]
    then
        wsp=$(whitespaces $TERMINAL_WIDTH $DETAILED_INFO_WIDTH)
        echo "$WTTR" | head -n 17 | tail -n 10 | sed "s/^/${wsp}/"
        echo
    elif [ $TERMINAL_WIDTH -ge $SHORT_INFO_WIDTH ]
    then
        wsp=$(whitespaces $TERMINAL_WIDTH $SHORT_INFO_WIDTH)
        echo
        echo "$WTTR" | head -n 7 | tail -n 5 | sed "s/^/${wsp}/"
        echo
    fi
fi