#!/usr/bin/env bash
# setting the locale, some users have issues with different locales, this forces the correct one
export LC_ALL=en_US.UTF-8

#wrapper script for running weather on interval

fahrenheit=$1
location=$2
fixedlocation=$3

LOCKFILE=/tmp/.tmux2k-tmux-weather.lock
DATAFILE=/tmp/.tmux2k-tmux-data

ensure_single_process() {
    # check for another running instance of this script and terminate it if found
    [ -f $LOCKFILE ] && ps -p "$(cat $LOCKFILE)" -o cmd= | grep -F " ${BASH_SOURCE[0]}" && kill "$(cat $LOCKFILE)"
    echo $$ >$LOCKFILE
}

main() {
    ensure_single_process

    current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

    if [ ! -f $DATAFILE ]; then
        printf "Loading..." >$DATAFILE
    fi

    "$current_dir"/weather.sh >$DATAFILE

    while tmux has-session &>/dev/null; do
        "$current_dir"/weather.sh "$fahrenheit" "$location" "$fixedlocation" >$DATAFILE
        if tmux has-session &>/dev/null; then
            sleep 1200
        else
            break
        fi
    done

    rm $LOCKFILE
}

#run main driver function
main