#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: LicenseRef-CNCL-1.1 OR LicenseRef-CCLA-1.1
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu

guard_sourcing || return "${ERR_GUARD_SRCE}"

#######################################
# Module for Netcup static IPv6 address.
# Globals:
#   ARY_HANDLER_NETCUP_IPV6
#   BASH_SOURCE
#   VAR_HANDLER_BUILD_DIR
#   VAR_HANDLER_NETCUP_IPV6
#   VAR_WORKDIR
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
provider_netcup() {
  if "${VAR_HANDLER_NETCUP_IPV6}"; then

    printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 %s starting ... \e[0m\n" "${BASH_SOURCE[0]}"

    declare handler_netcup_ipv6_string="${ARY_HANDLER_NETCUP_IPV6[*]}"

    mkdir -p "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/systemd/network

    cat << EOF >| "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/systemd/network/10-netcup-ens3.network
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-11-27; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: LicenseRef-CNCL-1.1 OR LicenseRef-CCLA-1.1
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu

[Match]
Name=ens3

[Network]
DHCP=ipv4
DNS=135.181.207.105
DNS=89.58.62.53
DNS=138.199.237.109
DNS=2a01:4f9:c012:a813:135:181:207:105
DNS=2a0a:4cc0:1:e6:89:58:62:53
DNS=2a01:4f8:c013:8011:138:199:237:109
DNSOverTLS=opportunistic
DNSSEC=yes
IPv6AcceptRA=no
LinkLocalAddressing=ipv6
LLMNR=no
MulticastDNS=no

[Address]
Address=${handler_netcup_ipv6_string}/128

[Route]
Gateway=fe80::1
GatewayOnLink=yes

[DHCPv4]
UseDNS=no
UseDomains=no
RoutesToDNS=no
UseNTP=no
UseHostname=no

# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF

    #sed -i "s|MUST_BE_REPLACED|${handler_netcup_ipv6_string}|g" "${VAR_WORKDIR}/scripts/etc/network/9999_interfaces_update_netcup.chroot"
    #rm -f "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9999_interfaces_update.chroot"
    #cp "${VAR_WORKDIR}/scripts/etc/network/9999_interfaces_update_netcup.chroot" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9999_interfaces_update.chroot"
    #chmod 0755 "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9999_interfaces_update.chroot"

    printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ %s successfully applied. \e[0m\n" "${BASH_SOURCE[0]}"

  fi

  return 0
}
### Prevents accidental 'unset -f'.
# shellcheck disable=SC2034
readonly -f provider_netcup
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh