#!/bin/bash

STATE_FILE="/tmp/sb-stopwatch.state"
signal=5

# signal dwmblocks to update block
send_signal() {
    pkill -RTMIN+$signal dwmblocks
}


if [ -z "$1" ]; then
    echo "Usage: $0 <minutes>"
    exit 1
fi

end_time=$(($(date +%s) + $1 * 60))
echo "$end_time" > "$STATE_FILE"
send_signal