#!/bin/sh
set -u

CURL='curl -sSf'

if true
then
	QUERYURL='https://duckduckgo.com/?iar=images&iax=images&ia=images&iaf=type:photo&q='
	ARGMATCH="vqd='([^']+)"
	JSONQUERY='https://duckduckgo.com/i.js?l=nl-nl&o=json&num=2'
else
	CURL="$CURL -A /"
	QUERYURL="https://www.google.com/search?tbm=isch&pws=0&hl=nl&num=1&q="
	ARGMATCH='<img [^>]+src="(http[^"]+)"'
fi

while read q
do
	q="${q%%/*}"
	[ -e "$q.jpg" ] && continue
	echo "$q"
	QUERYARG="%22$q%22"
	QUERYRES=$($CURL "$QUERYURL$QUERYARG" | perl -nE "say for /$ARGMATCH/" | head -1)
	if [ -n "$JSONQUERY" ]
	then
		$CURL "$JSONQUERY&vqd=$QUERYRES&q=$QUERYARG" -o "$q.json" || continue
		QUERYRES="$(jq -r '.results[0].thumbnail' "$q.json")"
	fi
	$CURL "$QUERYRES" -o "$q.jpg" || continue
done