#!/bin/sh

get_autocomplete_data() {
    touch /tmp/autocomplete-data /tmp/autocomplete-data-2
    cp /tmp/autocomplete-data /tmp/autocomplete-data-2

    curl -s "https://duckduckgo.com/ac/?q=$1&kl=wt-wt" | jq --raw-output ".[].phrase" > /tmp/.f
    mv /tmp/.f /tmp/autocomplete-data

    [ -n "$(diff /tmp/autocomplete-data /tmp/autocomplete-data-2)" ] && {
        rm -f /tmp/spmenu.fifo
        printf "update" > /tmp/spmenu.fifo
    }
}

bgfunc() {
    while true; do
        get_autocomplete_data "$(tail -n 1 /tmp/f | sed 's/ /+/g')"
        sleep 0.5
    done
}

bgfunc &
spmenu -im -r -l 10 -ml 10 -g 1 -pt "Search the web.." -lf /tmp/autocomplete-data > /tmp/f
pkill -P $$

tail -n 1 /tmp/f
rm -f /tmp/f /tmp/autocomplete-data /tmp/autocomplete-data-2