#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.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: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.installer
# SPDX-Security-Contact: security@coresecret.eu

guard_sourcing

#######################################
# Generate target '/etc/apt/sources.list.d/' deb.822 entries.
# Globals:
#   TARGET
#   apt_contrib
#   apt_deb_sources
#   apt_mirror_directory
#   apt_mirror_hostname
#   apt_mirror_protocol
#   apt_non_free
#   apt_non_free_firmware
#   apt_sec
#   apt_updates_backports
#   apt_updates_release
#   apt_updates_security
#   architecture
#   distribution
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
generate_sources822() {
  ### Declare Arrays, HashMaps, and Variables.
  declare -a ary_components=() ary_types=()
  declare    var_arch="" var_codename="" var_deb_src="" var_dir="" var_hostname="" var_hostsecure="" var_url="" var_surl=""

  # shellcheck disable=SC2154 # "${architecture}"
  var_arch="${architecture,,}"
  # shellcheck disable=SC2154 # "${distribution}"
  var_codename="${distribution,,}"
  # shellcheck disable=SC2154 # "${apt_deb_sources}"
  var_deb_src="${apt_deb_sources,,}"
  # shellcheck disable=SC2154 # "${apt_mirror_directory}"
  var_dir="${apt_mirror_directory,,}"
  # shellcheck disable=SC2154 # "${apt_mirror_hostname}"
  var_hostname="${apt_mirror_hostname,,}"
  # shellcheck disable=SC2154 # "${apt_sec}"
  var_hostsecure="${apt_sec,,}"

  ary_components=( "main" )
  [[ "${apt_contrib,,}" == "true" ]] && ary_components+=( "contrib" )
  [[ "${apt_non_free,,}" == "true" ]] && ary_components+=( "non-free" )
  [[ "${apt_non_free_firmware,,}" == "true" ]] && ary_components+=( "non-free-firmware" )

  ary_types=( "deb" )
  [[ "${apt_deb_sources,,}" == "true" ]] && ary_types+=( "deb-src" )

  if [[ "${apt_mirror_protocol,,}" == "https" ]]; then

    var_url="https://${var_hostname}${var_dir}"
    var_surl="https://${var_hostsecure}/debian-security"

  elif [[ "${apt_mirror_protocol,,}" == "http" ]]; then

    var_url="http://${var_hostname}${var_dir}"
    var_surl="http://${var_hostsecure}/debian-security"

  else

    var_url="https://${var_hostname}${var_dir}"
    var_surl="https://${var_hostsecure}/debian-security"

  fi


  ### Main Repository
  insert_header   "${TARGET}/etc/apt/sources.list.d/trixie.sources"
  insert_comments "${TARGET}/etc/apt/sources.list.d/trixie.sources"
  cat << EOF >>   "${TARGET}/etc/apt/sources.list.d/trixie.sources"
#------------------------------------------------------------------------------------------------------------------------------#
#                                                     OFFICIAL DEBIAN REPOS                                                    #
#------------------------------------------------------------------------------------------------------------------------------#
Types: ${ary_types[*]}
URIs: ${var_url}
Suites: ${var_codename}
Components: ${ary_components[*]}
Enabled: yes
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

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


  ### Security Repository
  if [[ "${apt_updates_security,,}" == "true" ]]; then
    insert_header   "${TARGET}/etc/apt/sources.list.d/trixie-security.sources"
    insert_comments "${TARGET}/etc/apt/sources.list.d/trixie-security.sources"
    cat << EOF >>   "${TARGET}/etc/apt/sources.list.d/trixie-security.sources"
#------------------------------------------------------------------------------------------------------------------------------#
#                                                     OFFICIAL DEBIAN REPOS                                                    #
#------------------------------------------------------------------------------------------------------------------------------#
Types: ${ary_types[*]}
URIs: ${var_surl}
Suites: ${var_codename}-security
Components: ${ary_components[*]}
Enabled: yes
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

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

  ### Updates Repository
  if [[ "${apt_updates_release,,}" == "true" ]]; then
    insert_header   "${TARGET}/etc/apt/sources.list.d/trixie-updates.sources"
    insert_comments "${TARGET}/etc/apt/sources.list.d/trixie-updates.sources"
    cat << EOF >>   "${TARGET}/etc/apt/sources.list.d/trixie-updates.sources"
#------------------------------------------------------------------------------------------------------------------------------#
#                                                     OFFICIAL DEBIAN REPOS                                                    #
#------------------------------------------------------------------------------------------------------------------------------#
Types: ${ary_types[*]}
URIs: ${var_url}
Suites: ${var_codename}-updates
Components: ${ary_components[*]}
Enabled: yes
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

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


  ### Backports Repository
  if [[ "${apt_updates_backports,,}" == "true" ]]; then
    insert_header   "${TARGET}/etc/apt/sources.list.d/trixie-backports.sources"
    insert_comments "${TARGET}/etc/apt/sources.list.d/trixie-backports.sources"
    cat << EOF >>   "${TARGET}/etc/apt/sources.list.d/trixie-backports.sources"
#------------------------------------------------------------------------------------------------------------------------------#
#                                                     OFFICIAL DEBIAN REPOS                                                    #
#------------------------------------------------------------------------------------------------------------------------------#
Types: ${ary_types[*]}
URIs: ${var_url}
Suites: ${var_codename}-backports
Components: ${ary_components[*]}
Enabled: yes
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

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

  fi


  if [[ -f "${TARGET}/etc/apt/sources.list" ]]; then
    rm -f "${TARGET}/etc/apt/sources.list"
  fi


  insert_header   "${TARGET}/etc/apt/apt.conf.d/90-no-pdiffs"
  insert_comments "${TARGET}/etc/apt/apt.conf.d/90-no-pdiffs"
  cat << 'EOF' >> "${TARGET}/etc/apt/apt.conf.d/90-no-pdiffs"
Acquire::PDiffs "false";

# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
  sed -i -E 's|^([[:space:]]*)#+|\1//|' "${TARGET}/etc/apt/apt.conf.d/90-no-pdiffs"


  insert_header   "${TARGET}/etc/apt/apt.conf.d/91-acquire"
  insert_comments "${TARGET}/etc/apt/apt.conf.d/91-acquire"
  cat << 'EOF' >> "${TARGET}/etc/apt/apt.conf.d/91-acquire"
Acquire::Retries "3";

# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
  sed -i -E 's|^([[:space:]]*)#+|\1//|' "${TARGET}/etc/apt/apt.conf.d/91-acquire"

  guard_dir && return 0
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh