#!/bin/bash
basedir=".."
outputdir="output/dnsmasq"
path="${basedir}/cache_domains.json"

export IFS=' '

test=$(which jq);
out=$?
if [ $out -gt 0 ] ; then
        echo "This script requires jq to be installed."
        echo "Your package manager should be able to find it"
        exit 1
fi

cachenamedefault="disabled"

while read line; do
        ip=$(jq -r ".ips[\"${line}\"]" config.json)
        declare "cacheip$line"="$ip"
done <<< $(jq -r '.ips | to_entries[] | .key' config.json)

while read line; do
        name=$(jq -r ".cache_domains[\"${line}\"]" config.json)
        declare "cachename$line"="$name"
done <<< $(jq -r '.cache_domains | to_entries[] | .key' config.json)

rm -rf ${outputdir}
mkdir -p ${outputdir}
while read entry; do
        unset cacheip
        unset cachename
        key=$(jq -r ".cache_domains[$entry].name" $path)
        cachename="cachename${key}"
        if [ -z "${!cachename}" ]; then
                cachename="cachenamedefault"
        fi
        if [[ ${!cachename} == "disabled" ]]; then
                continue;
        fi
        cacheipname="cacheip${!cachename}"
        cacheip=${!cacheipname}
        while read fileid; do
                while read filename; do
                        destfilename=$(echo $filename | sed -e 's/txt/conf/')
                        outputfile=${outputdir}/${destfilename}
                        touch $outputfile
                        while read fileentry; do
                                # Ignore comments
                                if [[ $fileentry == \#* ]]; then
                                        continue
                                fi
                                parsed=$(echo $fileentry | sed -e "s/^\*\.//")
                                if grep -q "$parsed" $outputfile; then
                                        continue
                                fi
                                echo "address=/${parsed}/${cacheip}" >> $outputfile
                        done <<< $(cat ${basedir}/$filename);
                done <<< $(jq -r ".cache_domains[$entry].domain_files[$fileid]" $path)
        done <<< $(jq -r ".cache_domains[$entry].domain_files | to_entries[] | .key" $path)
done <<< $(jq -r '.cache_domains | to_entries[] | .key' $path)