#!/bin/bash

CONTENT_DIR="content"
CANNED_CONTENT_DIR="canned-content"

if [ -d "$CONTENT_DIR" ]; then
        echo "content folder exists. It looks like your CER is already initialized. Aborting." >&2
        exit 100
fi

if [ -d "$CANNED_CONTENT_DIR" ]; then
        CER_LANG_OPTIONS=( $(find ./canned-content/ -mindepth 1 -maxdepth 1 -type d | xargs -n 1 basename | sort) )
else
        echo "canned-content folder is missing. It looks like your CER is already initialized. Aborting." >&2
        exit 101
fi

CER_TYPE_OPTIONS=()
YES_NO_OPTIONS=("Yes" "No")
TOP_MENU_OPTION=( "Execute Initialization" "Set Language" "Set CER Type" "Set page layout" "Set Customer Name" "Set Customer Short Name" "Set Git URL" "Set Cleanup canned-content" "Set upload to par/CER" "Set title page background" "Post init selection of chapters" "Quit")

CER_CLONE_REPO=false
INITIALIZE=false
QUIT=false

CER_TYPE_OPTIONS_SELECTED_INDEXES=()

# args
CER_LANG=""
CER_TYPES=()
CLEANUP_CANNED_CONTENT=Yes
CUSTOMER_NAME=""
CUSTOMER_SHORT_NAME=""
ADD_TO_PARCER=Yes
DARK_TITLE_PAGE=No
TCLEAN=No

GIT_VERSION=( $(git --version | awk '{print $3}' | awk -F. '{print $1, $2}') )

GIT_URL_ORIGIN=""
PAGE_LAYOUT="A4"
OTHER_ARGUMENTS=()

function main() {
  # parse args
  parse_args "$@"

  # make initial selections if args didn't say to initialize
  if [ ${INITIALIZE} == true ]; then
    verify_args
  else
    if [ -z "${CER_LANG}" ]; then
      choose_lang_type
    fi

    if [[ ${#CER_TYPES[@]} -lt 1 ]]; then
      choose_cer_type
    fi

    if [ -z "${CUSTOMER_NAME}" ]; then
      set_customer_name
    fi

    if [ -z "${CUSTOMER_SHORT_NAME}" ]; then
      set_customer_short_name
    fi

    if [ -z "${GIT_URL_ORIGIN}" ]; then
      set_git_url_origin
    fi
  fi

  echo
  while [ ${QUIT} == false ] && [ ${INITIALIZE} == false ]; do
    print_selected_options
    menu_top
  done

  if [ ${INITIALIZE} == true ]; then
    print_selected_options
    initialize
    init_numberize
    init_cleanup
    init_add_to_parcer
    init_dark_title_page
    init_git
    if [ ${TCLEAN} == Yes ]; then
      init_template_cleaning
    fi
    if [ ${CER_CLONE_REPO} == true ]
    then
      echo
      echo "Go to '${CUSTOMER_REPO}' to edit and generate your CER for ${CUSTOMER_NAME}."
      echo "Note that the repo 'CER-${CUSTOMER_SHORT_NAME}' can be moved to wherever you need it."
    fi
  fi
}

function error() {
  printf 'ERROR: %s\n' "$1" >&2
  exit 1
}

function verify_args() {
  if [ -z "${CER_LANG}" ]; then
    usage_and_exit '--lang argument is required'
  fi

  if [ -z "${CUSTOMER_NAME}" ]; then
    usage_and_exit '--customer-name argument is required'
  fi

  if [ -z "${CUSTOMER_SHORT_NAME}" ]; then
    usage_and_exit '--customer-short-name argument is required'
  fi
}

# function to output command usage and exit, either with return code 0
# or using the error function if an error message is given as parameter
function usage_and_exit() {
	cat <<@EndOfUsage

Usage: $0 [options]
    --clone
        create a parallel customer repo named CER-<customer-short-name> instead
        of modifying the current one. This allows for offline work.
    --initialize
        directly initialize the repo, language, customer name and short name
        are required as well.
    --cleanup-canned-content
        remove the provided canned content you haven't selected (the default).
    --keep-canned-content
        keep the provided canned content you haven't selected.
    --add-to-parcer
        add this CER to par/CER, the CER full-text search engine.
        Adds .add-to-parcer file to the repo root.
        (Default behavour. Works only for 'Client CERs' subgroup)
    --skip-parcer
        do not add this document to par/CER, the CER full-text search engine.
    --light-title-page
        use a light (white) background for the title page. (default)
    --dark-title-page
        use a dark (gray) background for the title page.
    --lang <xx_XX>
        the language_COUNTRY code (required for initialization), one of:
        $(find canned-content -maxdepth 1 -type d -name '??_??' -exec basename {} \; | tr '\n' ' ').
    --page-layout <format>
        the format of the pages in the PDF (A4 -default- or Letter).
    --customer-name <Customer Name>
        the full "official" name of the customer (required for initialization).
    --customer-short-name <Abbr. Customer Name>
        a shortcut name of the customer, no blanks, fit for filename (required.
        for initialization)
    --git-origin-url <target Git URL>
        the Git repo to which you'd like to push your customer repo to.
    --cer-type <canned content>
        which content you'd like to use to your draft (can be used multiple
        times to add multiple content types).
	Check available ones for your language under "canned-content/xx_XX".

Examples:
    ./init-cer --clone --initialize --lang=en_US \\
               --customer-name "My Customer" --customer-short-name mycust \\
               --cer-type Ansible-Tower --cer-type RHV-4x \\
	       --git-origin-url ssh://git@gitlab.consulting.redhat.com:2222/customer-success/consulting-engagement-reports/client-cers/2020/emea/germany/mycust/myproject.git
        will create non-interactively a customer repo under ../CER-mycust with
        the pre-defined content for Ansible Tower and RHV 4, ready to be pushed
	to the repository you must have created, together with its sub-groups
        hierarchy, under
        https://gitlab.consulting.redhat.com/customer-success/consulting-engagement-reports/client-cers
    ./init-cer
        will completely interactively transform the current repository into a
        customer repository.

@EndOfUsage

	if [ -n "$1" ]
	then
		error "$@"
	else
		exit 0
	fi
}

function parse_args() {
  CER_TYPES=("Base")

  while :
  do
    case $1 in
      -h|--help)
	usage_and_exit
        ;;

      --clone)
        CER_CLONE_REPO=true
        shift
        ;;

      --initialize)
        INITIALIZE=true
        TCLEAN=No
        shift
        ;;

      --cleanup-canned-content)
        CLEANUP_CANNED_CONTENT=Yes
        shift
        ;;
      --keep-canned-content)
        CLEANUP_CANNED_CONTENT=No
        shift
        ;;

      --add-to-parcer)
        ADD_TO_PARCER=Yes
        shift
        ;;
      --skip-parcer)
        ADD_TO_PARCER=No
        shift
        ;;

      --light-title-page)
        DARK_TITLE_PAGE=No
        shift
        ;;

      --dark-title-page)
        DARK_TITLE_PAGE=Yes
        shift
        ;;

      --lang=*)
        CER_LANG="${1#*=}"
        shift
        ;;
      --lang)
        CER_LANG="$2"
        shift
        shift
        ;;

      --page-layout=*)
        PAGE_LAYOUT="${1#*=}"
        shift
        ;;
      --page-layout)
        PAGE_LAYOUT="$2"
        shift
        shift
        ;;

      --customer-name=*)
        CUSTOMER_NAME="${1#*=}"
        shift
        ;;
      --customer-name)
        CUSTOMER_NAME="$2"
        shift
        shift
        ;;

      --customer-short-name=*)
        CUSTOMER_SHORT_NAME="${1#*=}"
        shift
        ;;
      --customer-short-name)
        CUSTOMER_SHORT_NAME="$2"
        shift
        shift
        ;;

      --git-origin-url=*)
        GIT_URL_ORIGIN="${1#*=}"
        shift
        ;;
      --git-origin-url)
        GIT_URL_ORIGIN="$2"
        shift
        shift
        ;;

      --cer-type=*)
        CER_TYPES+=("${1#*=}")
        shift
        ;;
      --cer-type)
        CER_TYPES+=("$2")
        shift
        shift
        ;;

      "")
        break
        ;;

      *)
        OTHER_ARGUMENTS+=("$1")
        shift # Remove generic argument from processing
        ;;
    esac
  done
}

function print_selected_options() {
  echo
  DISPLAYCER=""
  for THECER in "${CER_TYPES[@]}"; do
    [[ ${DISPLAYCER} = "" ]] || DISPLAYCER+=", "
    DISPLAYCER+="${THECER}"
  done
  echo Selected Options:
  printf "%30s:  "     "Language";                   printf "%s " "${CER_LANG[@]}"; printf "\n"
  printf "%30s:  "     "CER Type";                   printf "%s " "${DISPLAYCER}"; printf "\n"
  printf "%30s:  "     "Page type";                  printf "%s " "${PAGE_LAYOUT}"; printf "\n"
  printf "%30s:  %s\n" "Cleanup canned-content"      "${CLEANUP_CANNED_CONTENT}"
  printf "%30s:  %s\n" "Add to par/CER"              "${ADD_TO_PARCER}"
  printf "%30s:  %s\n" "Title page dark background"  "${DARK_TITLE_PAGE}"
  printf "%30s:  %s\n" "Customer Name"               "${CUSTOMER_NAME}"
  printf "%30s:  %s\n" "Customer Short Name"         "${CUSTOMER_SHORT_NAME}"
  printf "%30s:  %s\n" "Git URL"                     "${GIT_URL_ORIGIN}"
  printf "%30s:  %s\n" "Postinit chapters selection" "${TCLEAN}"
  echo
}

# SOURCE: https://jonlabelle.com/snippets/view/shell/multi-select-menu-in-bash
function print_cer_type_menu() {
  echo "Available CERs:"
  for i in ${!CER_TYPE_OPTIONS[@]}; do
    printf "%3d%s) %s\n" $((i+1)) "${CER_TYPE_OPTIONS_SELECTED_INDEXES[i]:- }" "${CER_TYPE_OPTIONS[i]}${j}"
    unset j
  done
  [[ "$msg" ]] && printf '\n%s\n' "$msg"; :
}

function choose_lang_type() {
  echo
  PS3="Choose language (${CER_LANG}): "
  select CER_LANG_OPT in "${CER_LANG_OPTIONS[@]}"
  do
    if [[ " ${CER_LANG_OPTIONS[@]} " =~ " ${CER_LANG_OPT} " ]]; then
      # if selecting a new language then need to select new CER types, otherwise do not.
      if [[ "${CER_LANG_OPT}" != "${CER_LANG}" ]] ; then
        CER_TYPE_OPTIONS_SELECTED_INDEXES=()
        CER_LANG=${CER_LANG_OPT}
        CER_TYPE_OPTIONS=()
        # Sort the CER Types by the contents of .nicename
        unsorted_CER_TYPE_OPTIONS=()
        for directory in $(find ./canned-content/"${CER_LANG}"/ -mindepth 1 -maxdepth 1 -type d \( -iname "*" ! -iname "Base" \) -print0 | xargs -0 -n 1 basename); do
            nicename=canned-content/${CER_LANG[*]}/${directory}/.nicename
            cername="${directory}"
            if [ -f "${nicename}" ] ; then
              cername="$( head -1 "${nicename}" )"
            fi
            # Limit the length of the nice name to 50 characters
            # Determine string length while taking into account 2 byte characters
            max_length=50
            bytes=$(printf '%s' "${cername}" | wc -c)
            chars=$(printf '%s' "${cername}" | wc -m)
            num_size=$((max_length+bytes-chars))
            unsorted_CER_TYPE_OPTIONS+=("$(printf "%-${num_size}.${num_size}s (%s)" "${cername}" "${directory}")")
        done

        old_IFS=${IFS}
        IFS=$'\n'
        CER_TYPE_OPTIONS=($(sort <<<"${unsorted_CER_TYPE_OPTIONS[*]}"))
        IFS=${old_IFS}

        # force chosing CER types after selecting a new language since CER types are dependent on language
        CER_LANG_OPT=""
        msg=""
        choose_cer_type
        break
      else
        break
      fi
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
}

function choose_page_layout() {
  echo
  PAGE_LAYOUTS=("A4" "Letter")
  PS3="Choose page layout (${PAGE_LAYOUTS}):"
  select PAGE_LAYOUT in "${PAGE_LAYOUTS[@]}" ; do
    if [[ " ${PAGE_LAYOUT[@]} " =~ " ${PAGE_LAYOUT} " ]]; then
      break
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
}

# SOURCE: https://jonlabelle.com/snippets/view/shell/multi-select-menu-in-bash
function choose_cer_type() {
  # Regex to extract the directory name from the menu item
  CER_TYPE_REGEX='^.*\((.*)\)$'

  printf "\nThe Base CER is always added, not selecting any CER will result in a Base CER only.\n\n"
  prompt=$'\nEnter number to select CER content type(s) to include. Enter number again to unselect.\nMultiple selections can be made. \nIf you need a description of any of the contents, please press 0. \nPress ENTER to continue. (#/ENTER): '
  while print_cer_type_menu && read -rp "$prompt" cer_type_index && [[ "$cer_type_index" ]]; do
    if [[ $cer_type_index = 0 ]] ; then
      show_canned_contents_description
    else
      [[ "$cer_type_index" != *[![:digit:]]* ]] &&
      (( cer_type_index > 0 && cer_type_index <= ${#CER_TYPE_OPTIONS[@]} )) ||
      { msg="Invalid option: $cer_type_index"; continue; }

      ((cer_type_index--));

      # Only use the directory name for the message
      [[ "${CER_TYPE_OPTIONS[cer_type_index]}" =~ $CER_TYPE_REGEX ]]
      msg="${BASH_REMATCH[1]} was ${CER_TYPE_OPTIONS_SELECTED_INDEXES[cer_type_index]:+un}selected"
      [[ "${CER_TYPE_OPTIONS_SELECTED_INDEXES[cer_type_index]}" ]] && CER_TYPE_OPTIONS_SELECTED_INDEXES[cer_type_index]="" || CER_TYPE_OPTIONS_SELECTED_INDEXES[cer_type_index]="+"
    fi
  done

  CER_TYPES=("Base")
  for i in ${!CER_TYPE_OPTIONS[@]}; do
    # Only use the directory name for the selected types array
    [[ "${CER_TYPE_OPTIONS[i]}" =~ $CER_TYPE_REGEX ]]
    [[ "${CER_TYPE_OPTIONS_SELECTED_INDEXES[i]}" ]] && { CER_TYPES+=("${BASH_REMATCH[1]}"); }
  done
}

function show_canned_contents_description() {
  contentprompt=$'\nEnter number to show the description for the CER content. \nWhen ready, press ENTER to return to selection. \n(#/ENTER): '
  while print_cer_type_menu && read -rp "$contentprompt" showcontentindex && [[ "$showcontentindex" ]]; do
    (( showcontentindex > 0 && showcontentindex <= ${#CER_TYPE_OPTIONS[@]} )) ||
      { msg="Invalid option: $showcontentindex"; continue; }
    # Ok, we have a valid selection, now show the .nicename file belonging to this selection.
    
    [[ "${CER_TYPE_OPTIONS[showcontentindex-1]}" =~ $CER_TYPE_REGEX ]]

    printf "\n----------\n"
    sed 1d "./${CANNED_CONTENT_DIR}/${CER_LANG}/${BASH_REMATCH[1]}/.nicename" 
    waitprompt=$'\n\n------- \n Press any key to continue.\n'
    read -rp "$waitprompt"

  done
}

function set_customer_name() {
  echo
  read -p "Customer Name [${CUSTOMER_NAME}]: " new_customer_name
  CUSTOMER_NAME=${new_customer_name:-${CUSTOMER_NAME}}
  while [[ -z "${CUSTOMER_NAME}" ]]
  do
    read -p "Customer Name [${CUSTOMER_NAME}]: " new_customer_name
    CUSTOMER_NAME=${new_customer_name:-${CUSTOMER_NAME}}
  done
}

function set_customer_short_name() {
  echo
  read -p "Customer Short Name [${CUSTOMER_SHORT_NAME}]: " new_customer_short_name
  CUSTOMER_SHORT_NAME=${new_customer_short_name:-${CUSTOMER_SHORT_NAME}}
  while [[ -z "${CUSTOMER_SHORT_NAME}" ]]
  do
    read -p "Customer Short Name [${CUSTOMER_SHORT_NAME}]: " new_customer_short_name
    CUSTOMER_SHORT_NAME=${new_customer_short_name:-${CUSTOMER_SHORT_NAME}}
  done
}

function set_git_url_origin() {
  echo
  read -p "New Git Remote origin URL [${GIT_URL_ORIGIN}]: " new_git_url
  GIT_URL_ORIGIN=${new_git_url:-${GIT_URL_ORIGIN}}
  while [[ -z "${CUSTOMER_SHORT_NAME}" ]]
  do
    read -p "New Git Remote origin URL [${GIT_URL_ORIGIN}]: " new_git_url
    GIT_URL_ORIGIN=${new_git_url:-${GIT_URL_ORIGIN}}
  done
}

function menu_cleanup_canned_content() {
  echo
  PS3="Cleanup canned-content directory? (${CLEANUP_CANNED_CONTENT}) "
  select CLEANUP_CANNED_CONTENT in "${YES_NO_OPTIONS[@]}"
  do
    if [[ " ${YES_NO_OPTIONS[@]} " =~ " ${CLEANUP_CANNED_CONTENT} " ]]; then
      break
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
  PS3=""
}

function menu_add_to_parcer() {
  echo
  PS3="Add the document to par/CER, the CER full-text search engine? (${ADD_TO_PARCER}) "
  select ADD_TO_PARCER in "${YES_NO_OPTIONS[@]}"
  do
    if [[ " ${YES_NO_OPTIONS[@]} " =~ " ${ADD_TO_PARCER} " ]]; then
      break
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
  PS3=""
}

function menu_dark_title_page() {
  echo
  PS3="Use dark page background on the title page? (${DARK_TITLE_PAGE}) "
  select DARK_TITLE_PAGE in "${YES_NO_OPTIONS[@]}"
  do
    if [[ " ${YES_NO_OPTIONS[@]} " =~ " ${DARK_TITLE_PAGE} " ]]; then
      break
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
  PS3=""
}

function menu_chapters() {
  echo
  PS3="Do you want to perform a post init selection of chapters (this is guided)? (${TCLEAN})"
  select TCLEAN in "${YES_NO_OPTIONS[@]}"
  do
    if [[ " ${YES_NO_OPTIONS[@]} " =~ " ${TCLEAN} " ]]; then
      break
    else
      echo
      echo "Invalid option ${REPLY}"
    fi
  done
  PS3=""
}


function menu_top() {
  PS3="Selection option to update: "
  select top_menu_option in "${TOP_MENU_OPTION[@]}"
  do
    case ${top_menu_option} in
      "Set Language")
        choose_lang_type
        break
        ;;
      "Set CER Type")
        choose_cer_type
        break
        ;;
      "Set page layout")
        choose_page_layout
        break
        ;;
      "Set Customer Name")
        set_customer_name
        break
        ;;
      "Set Customer Short Name")
        set_customer_short_name
        break
        ;;
      "Set Git URL")
        set_git_url_origin
        break
        ;;
      "Set Cleanup canned-content")
        menu_cleanup_canned_content
        break
        ;;
      "Set upload to par/CER")
        menu_add_to_parcer
        break
        ;;
      "Set title page background")
        menu_dark_title_page
        break
        ;;
      "Post init selection of chapters")
        menu_chapters
        break
        ;;
      "Execute Initialization")
        echo
        if [ -z "${CER_TYPES}" ]; then
          echo "ERROR: CER Type must be set before initialization"
          break
        fi

        if [ -z "${CUSTOMER_NAME}" ]; then
          echo "ERROR: Customer Name must be set before initialization"
          break
        fi

        if [ -z "${CUSTOMER_SHORT_NAME}" ]; then
          echo "ERROR: Customer Short Name must be set before initialization"
          break
        fi

        echo
        PS3="Are you sure you want to initialize the CER content? "
        select ARE_YOU_SURE_INIT in "${YES_NO_OPTIONS[@]}"
        do
          case ${ARE_YOU_SURE_INIT} in
            "Yes")
              INITIALIZE=true
              break
              ;;
            *)
              INITIALIZE=false
              break
              ;;
          esac
        done
        PS3=""

        break
        ;;
      "Quit")
        echo
        PS3="Are you sure you want to quit without initializing? "
        select ARE_YOU_SURE_QUIT in "${YES_NO_OPTIONS[@]}"
        do
          case ${ARE_YOU_SURE_QUIT} in
            "Yes")
              QUIT=true
              break
              ;;
            *)
              QUIT=false
              break
              ;;
          esac
        done
        PS3=""

        break
        ;;
      *)
        echo
        echo "Invalid menu option"
        break
        ;;
    esac

    print_selected_options
  done
  PS3=""
}

function initialize() {
  # Execute
  echo
  echo "Executing Initalization"

  if [ ${CER_CLONE_REPO} == true ]
  then
      echo "  Refresh content (if possible, potential errors are ignored)"
      git pull --quiet || :

      ORIGIN_REPO=$(pwd)
      CUSTOMER_REPO=$(dirname "${ORIGIN_REPO}")/CER-${CUSTOMER_SHORT_NAME}

      if [ -d "${CUSTOMER_REPO}" ]; then
          error "Customer repo '${CUSTOMER_REPO}' exists. It looks like your CER is already initialized. Aborting."
      fi

      echo "  Cloning current repo into customer repo '${CUSTOMER_REPO}'."
      git clone "file://${ORIGIN_REPO}" "${CUSTOMER_REPO}"
      cd "${CUSTOMER_REPO}"
  fi

  if [ ${GIT_VERSION[0]} -lt 2 ] || ([ ${GIT_VERSION[0]} -eq 2 ] && [ ${GIT_VERSION[1]} -lt 7 ]) ; then
      GIT_URL_OLD_ORIGIN=$(git config --get remote.origin.url 2>/dev/null)
  else
      GIT_URL_OLD_ORIGIN=$(git remote get-url origin 2>/dev/null)
  fi

  echo "  Initialize content"
  echo "    Initalizing README.adoc"
  cp ./${CANNED_CONTENT_DIR}/${CER_LANG}/cer.adoc README.adoc

  # Layer selected type content
  echo "    Layer content"
  for cer_type in ${CER_TYPES[@]}; do
    cer_type_path="./${CANNED_CONTENT_DIR}/${CER_LANG}/${cer_type}"
    echo "    Cer DIR: ${cer_type_path}"

    # https://www.cyberciti.biz/tips/handling-filenames-with-spaces-in-bash.html
    SAVEIFS=$IFS
    IFS=$'\n'
    files=($(find ${cer_type_path}))
    IFS=$SAVEIFS
    filesLen=${#files[@]}
    for (( i=0; i<${filesLen}; i++)); do
      src_file="${files[$i]}"

      echo "    ====> ${src_file}"

      if [[ ${src_file} =~ "/images" ]]; then
        dest_file="./images"
        dest_file+=$(echo "${src_file}" | sed "s~${cer_type_path}/images~~g")
      else
        dest_file="./content"
        dest_file+=$(echo "${src_file}" | sed "s~${cer_type_path}~~g")
      fi

      if [[ -d ${src_file} ]] && [[ ! -d ${dest_file} ]]; then
        mkdir -p ${dest_file}
        echo "      created directory: '${dest_file}'"
      elif [[ -d ${dest_file} ]]; then
        echo "      directory alredy exists: '${dest_file}'"
      else
        if [[ ! -f ${dest_file} ]] ; then
          cp -n "${src_file}" "${dest_file}"
          echo "      copied '${src_file}' to '${dest_file}'"
        else
          echo -en "\n" >> ${dest_file}
          cat ${src_file} >> ${dest_file}
          echo "      appended '${src_file}' to '${dest_file}'"
        fi
      fi
    done
  done

  echo "Saving language ${CER_LANG} as global for CER."
  echo "LANGUAGE=${CER_LANG}" >> .cer-config


  # Update customer-vars
  # HACK NOTE:
  #  Can't use sed -i here because it does not work the same on BSD and GNU versions of sed
  #  * https://unix.stackexchange.com/questions/401905/bsd-sed-vs-gnu-sed-and-i
  #  * https://riptutorial.com/sed/topic/9436/bsd-macos-sed-vs--gnu-sed-vs--the-posix-sed-specification
  echo "    Initialize vars/customer-vars.adoc"
  echo "      Set var #customer: '${CUSTOMER_NAME}'"
  sed "s#customer:.*#customer: ${CUSTOMER_NAME//&/\\&}#" vars/customer-vars.adoc > vars/customer-vars.adoc.new; mv vars/customer-vars.adoc.new vars/customer-vars.adoc
  echo "      Set var #cust: '${CUSTOMER_SHORT_NAME}'"
  sed "s#cust:.*#cust: ${CUSTOMER_SHORT_NAME//&/\\&}#" vars/customer-vars.adoc > vars/customer-vars.adoc.new; mv vars/customer-vars.adoc.new vars/customer-vars.adoc

  echo "      Set var #PDFPAGESIZE (PDF page layout): '${PAGE_LAYOUT}'"
  sed "s/#PDFPAGESIZE/${PAGE_LAYOUT}/" vars/render-vars.adoc > vars/render-vars.adoc.new ; mv vars/render-vars.adoc.new vars/render-vars.adoc

  echo "      Tracking included cer_types as adoc variables"
  for cer_type in ${CER_TYPES[@]}; do
    echo ":included_cer_${cer_type}: true" >> vars/render-vars.adoc
  done

  # setup gitlab-ci
  echo "  Move customer.gitlab-ci.yml to .gitlab-ci.yml"
  mv customer.gitlab-ci.yml .gitlab-ci.yml
}

init_cleanup() {
  echo "  Cleanup"
  # Cleanup canned-content
  if [ "${CLEANUP_CANNED_CONTENT}" == "Yes" ]; then
    echo "    Deleting canned-content/*"
    rm -rf ./${CANNED_CONTENT_DIR}/
  fi

  # Cleanup cer-template docs not relivant to Client CER
  echo "    Cleanup cer-template documentation"
  # files
  for I in README.md README-Windows.md LICENSE README-initialize-a-new-CER.md  README-MacOS.md  README-runner.md   README-writing.md README-linux.md STYLES.md ;
  do
    rm -f ./${I}
  done
  # directories
  rm -rf .gitlab-ci/*
}

init_add_to_parcer() {
  # Users can also add (or delete) '.add-to-parcer' file at any time manually
  if [ "${ADD_TO_PARCER}" == "Yes" ]; then
    echo "  Setting up upload to par/CER"
    echo "    Creating .add-to-parcer file"
    echo "This file ensures indexing in par/CER (CER full-text search)" > .add-to-parcer
    echo "You can prevent further indexing by deleting it," >> .add-to-parcer
    echo "but the existing document WILL NOT be dropped from par/CER." >> .add-to-parcer
    echo "(Re)creating .add-to-parcer manually restarts indexing again." >> .add-to-parcer
  fi
}

init_dark_title_page() {
  if [ "${DARK_TITLE_PAGE}" == "Yes" ]; then
    sed -i '/^title-page:/ a\  background-color: #E0E0E0' styles/pdf/redhat-theme.yml
  fi
}

#FUNCTION FOR PUTTING THE ADOC IN CONTENT IN NUMERIC ORDER
###ASSUMES INIT HAS ALREADY RAN
init_numberize() {
unset cur_seq cur_path dest_path
content_dir="./content/"
read_file="README.adoc"
file_content=$( cat "${read_file}" )
printf "  %s\n" "Putting content in ${content_dir} in numeric order"
  #LOOP READS THROUGH README FOR ADOC IN CONTENT
  ARR_A_DOC=()
  while IFS= read -r line ; do
        unset c_line
        if  [ "${line/.adoc//}" != "${line}" ]          && \
            [ "${line/::content//}" != "${line}" ]      && \
            [ "${line/legal-approved//}" == "${line}" ]
        then
            c_line="${line##*/}" ; c_line="${c_line%[*}"
            ARR_A_DOC+=( "${c_line}" )
        else
            continue
        fi
  done < "${read_file}"
  #LOOPS THROUGH NUMERIC VALUES OF FOUND CONTENT IN README
  for adoc in ${!ARR_A_DOC[@]} ; do
      #PADDING FOR 00X
        cur_seq=$( printf "%02d0" "${adoc}" )
      dest_path="${content_dir}${cur_seq}_${ARR_A_DOC[adoc]}"
       cur_path="${content_dir}${ARR_A_DOC[adoc]}"

      printf "      %s\n" "Moving \"${cur_path}\" To \"${dest_path}\""
      mv     "${cur_path}" "${dest_path}"
      file_content=$(
        sed "s,${cur_path#*/},${dest_path#*/}," <(echo "${file_content}")
      )
  done
  echo "${file_content}" > "${read_file}"
}

init_git() {
  # update git
  echo "  Git"
  echo "    Remove old Git repo (to get rid of template history)"
  rm -rf ./.git
  echo "    Init new Git repo"
  # Not using the --initial-branch=main option for git init as it requires git version 2.28.0 or newer
  git init
  git checkout -b main
  git branch -d master
  if [ "${GIT_URL_ORIGIN}" ]; then
    echo "    Add remote: origin: ${GIT_URL_ORIGIN}"
    git remote add origin ${GIT_URL_ORIGIN}
  else
    echo "    Add remote: origin: skipping due to none provided"
  fi
  if [ "${GIT_URL_OLD_ORIGIN}" ]; then
    echo "    Add remote: old origin"
    git remote add old-origin ${GIT_URL_OLD_ORIGIN}
  else
    echo "    Add remote: old-origin: skipping due to none provided"
  fi
  echo "    Stage all files"
  git add . --all

  #force execute permissions to work around windows
  git update-index --chmod=+x scripts/* generate-pdf init-cer verify-broken-links

  echo "    Create initial commit"
  git commit -am "Initial CER for ${CUSTOMER_SHORT_NAME}"
}

init_template_cleaning() {
  # Check if README has any of the markings needed
  head -1 README.adoc | grep -q "//#H"
  if [[ $? -eq 0 ]] ; then
    scripts/clean-cer-contents.sh README.adoc
  else
    echo "Options for cleaning not available for $CER_LANG"
  fi
}

main "$@"