#!/usr/bin/env bash

build::rdlink() {
  readonly build_dir="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
  readonly rdlinkRelease="${build_dir}/release/rdlink.sh"
  readonly color_green='\033[1;32m'
  readonly color_red='\033[1;31m'
  readonly color_less='\033[0m'
  readonly shellcheck_cmd="$(command -v shellcheck)"
  readonly fileHeader="#!/usr/bin/env bash

# rdlink [OPTIONS] <PATH>
#  [OPTION]
#     --  :  End of options marker
#     -*  :  Other options are ignored
#
# Version: $(git describe --long --tags --always --dirty)
#  Author: Martin Winkler
#  Origin: https://winklerfamilie.eu/git/efelon/rdlink.git
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"
  local testresult_graphic=
  testresult_graphic="${color_green}✔${color_less}" # alt. symbol ✓
  testresult_graphic_fail="${color_red}✗${color_less}" # alt. symbol ≠

  if ! mkdir -p "$(dirname -- "${rdlinkRelease}")" ; then
    printf " [ERROR] Cannot create release directory\n"
    return 1
  fi

  printf "# Building rdlink release\n"

  # Write header
  printf "%s" "${fileHeader}" > "${rdlinkRelease}"

  printf "  Extracting script part and removing debug information..."
  # Get essential script content
  # * extract script part
  # * remove script marker
  #   * remove debug function calls
  #   * remove debug options from rdlink
  # * replace multiple empty lines with one
  #if cat "${build_dir}/rdlink.sh" \
  #  | sed -n '/### Script.*/,/### Script EOF/ p' \
  #  | sed '/### Script.*/d; /^[[:blank:]]*info/d; /-d\{1,2\}/,/;;/d' \
  #  | sed '/^$/N; /^\n$/D' \
  #    >> "${rdlinkRelease}" 2>/dev/null ; then
  if sed -n '/### Script.*/,/### Script EOF/ p' < "${build_dir}/rdlink.sh" \
      | sed '/### Script.*/d; /^[[:blank:]]*info/d; /-d\{1,2\}/,/;;/d' \
      | sed '/^$/N; /^\n$/D' \
        >> "${rdlinkRelease}" 2>/dev/null ; then
    printf "%b" "${testresult_graphic}\n"
  else
    printf "%b" "${testresult_graphic_fail}\n"
    return 1
  fi

  if [[ "${shellcheck_cmd}" ]] ; then
    printf "%b\n" "  Running shellcheck...\033[1A\033[s\n"
    if "${shellcheck_cmd}" "${rdlinkRelease}" ; then
      printf "%b" "\033[u${testresult_graphic}\n"
    else
      return 1
    fi
  fi

  chmod +x "${rdlinkRelease}"
  return 0
}

build::rdlink