#!/bin/sh

#OS Detect
case $(grep -e "^ID=*" "/etc/os-release" |sed 's/ID=//g') in
  *"alpine"*)
    dist=alp;;
  *"ubuntu"* | *"debian"* )
    dist=deb;;
  *)
    "This distro is not (yet) supported"
    exit;;
esac

#Git-repo
repo=https://git.bprieshof.nl/Tools/LDS-Base
branch=main
LDSIDREPO=https://git.bprieshof.nl/Tools/LDS-ImageDownloader.git

pkgs="ca-certificates dnsmasq lighttpd"

##Set if using LDS-ImageDownloader
while true; do
    read -r -n 1 -p"Install LDS-ImageDownloader? [y/n]: " REPLY1
    echo ""
    case $REPLY1 in
        [yY]) LDSID=true
            while true; do
                read -r -n 1 -p"Download Installers? [y/n]: " REPLY2
                echo ""
                case $REPLY2 in
                    [yY]) LDSIDdwni=true
                        break;;
                    [nN])LDSIDdwni=false
                        break;;
                    *) echo "invalid input"
                esac 
            done
            while true; do
                read -r -n 1 -p"Download Tools? [y/n]: " REPLY3
                echo ""
                case $REPLY3 in
                    [yY]) LDSIDdwnt=true
                        break;;
                    [nN]) LDSIDdwnt=false
                        break;;
                    *) echo "invalid input"
                esac 
            done  
            pkgs="$pkgs zstd cpio git"
            case $dist in
            alp)
                pkgs="$pkgs bash cdrkit"
                break;;
            deb )
                 pkgs="$pkgs genisoimage wget unzip"
                break;;
            esac
            break;;
        [nN]) LDSID=false
            break;;
        *) echo "invalid input"
    esac 
done  


## install packages
case $dist in
  alp)
   pkgs="$pkgs grep"
    apk update
    apk add $pkgs
    rc-update add lighttpd
    rc-update add dnsmasq;;
  deb )
    apt update
    apt install -y $pkgs
    systemctl enable lighttpd dnsmasq;;
esac

wget -O /tmp/LDS.tar.gz "$repo"/archive/"$branch".tar.gz
tar –xzf /tmp/LDS.tar.gz –C /tmp

#Configure (re)start services
mkdir -p /opt/LDS/tftp /opt/LDS/www
mv /tmp/LDS-Base/iPXE /opt/LDS/tftp
mv /tmp/LDS-Base/UpdateIP.sh /opt/LDS
mv /tmp/LDS-Base/dnsmasq.conf /etc/dnsmasq.conf
mv /tmp/LDS-Base/lighttpd.conf /etc/lighttpd/lighttpd.conf

#Set dnsmasq ip range
echo ""
echo ""
ip a

read -p "Please enter the name of the network inteface: " netIF
sed -i "/NetIF=/c\NetIF=$netIF" /opt/LDS/UpdateIP.sh
ipa=$(ip -4 addr show $netIF | grep -m 1 -oP '(?<=inet\s)\d+(\.\d+){3}' | grep -E -o "([0-9]{1,3}[\.]){2}[0-9]{1,3}" |head -1 )
ipa="$ipa"".0"
sed -i '/dhcp-range/c\dhcp-range='"$ipa"',proxy' /etc/dnsmasq.conf
## install packages
case $dist in
  alp)
    service lighttpd stop
    service dnsmasq stop
    service lighttpd start
    service dnsmasq start;;
  deb )
    systemctl stop lighttpd dnsmasq
    systemctl start lighttpd dnsmasq;;
esac

#Install LDS-ImageDownloader
if $LDSID; then
    #git clone $LDSIDREPO /opt/LDS/ImageDownloader
    cd /opt/LDS/ImageDownloader/
    ln -s /opt/LDS/ImageDownloader/LinuxInstallers-LID.ipxe /opt/LDS/tftp/iPXE/LinuxInstallers-LID.ipxe
    sed -i '/set LDSIMenu/c\set LDSIMenu LinuxInstallers-LID.ipxe' /opt/LDS/tftp/iPXE/LDS.ipxe
    if $LDSIDdwnt; then
        sed -i -e 's/#item CloneZilla/item CloneZilla/g' -e 's/#item GParted/item GParted/g' -e 's/#item SystemRescueCD/item SystemRescueCD/g' /opt/LDS/tftp/iPXE/LDS.ipxe
        $SHELL Download-AllTools.sh
    fi
    if $LDSIDdwni; then
        $SHELL Download-AllInstallers.sh
    fi
fi