#!/bin/bash
# Copyright (c) 2023-2024 Ho Kim (ho.kim@ulagbulag.io). All rights reserved.
# Use of this source code is governed by The Unlicense license that can be
# found in the LICENSE file.

# Prehibit errors
set -e -o pipefail

###########################################################
#   Install Checker                                       #
###########################################################

function _check_wine() {
  WINE_EXE="$1"

  ls "${WINE_EXE}" >/dev/null 2>&1
}

###########################################################
#   Installer                                             #
###########################################################

function _install_wine() {
  SRC_URL='https://app-pc.kakaocdn.net/talk/win32/KakaoTalk_Setup.exe'
  DST_FILE="$(mktemp)"
  WINE_EXE="$1"

  # Mock home directory
  HOME_ORIGIN="${HOME}"
  HOME_PATCH="${WINEPREFIX}/tmp"
  export HOME="${HOME_PATCH}"

  echo 'Installing Kakaotalk...'
  [ -d "$WINEPREFIX" ] || mkdir -p "$WINEPREFIX"
  curl -s "${SRC_URL}" -o "${DST_FILE}"
  wineboot
  wine "${DST_FILE}" /S
  rm "${DST_FILE}"

  # Install Fonts
  _font_install

  # Remove tmp home directory
  rm -rf "${HOME_PATCH}"

  # Restore home directory
  export HOME="${HOME_ORIGIN}"

  # Link the wine home directory to the wild
  HOME_WINE="$(
    find "${WINEPREFIX}/drive_c/users" \
      -mindepth 1 -maxdepth 1 -type d -not -name 'Public' >/dev/null 2>&1
  )"

  dirs="Desktop Documents Downloads Music Pictures Videos"
  [ -n "$HOME_WINE" ] && for dir in $dirs; do
    [ -d "${HOME_WINE}/${dir}" ] && rm -rf "${HOME_WINE}/${dir:?}"
    ln -sf "${HOME}/${dir:?}" "${HOME_WINE}/${dir:?}"
  done

  # Create a desktop shortcut
  if [ -d "${XDG_DATA_HOME:-${HOME}/.local/share}/applications" ]; then
    ICON_SRC='/usr/share/applications/kakaotalk.desktop'
    ICON_DST="${XDG_DATA_HOME:-${HOME}/.local/share}/applications/kakaotalk.desktop"

    if [ -f "${ICON_SRC}" ] && [ ! -f "${ICON_DST}" ]; then
      mkdir -p "$(dirname "${ICON_DST}")"
      cp "${ICON_SRC}" "${ICON_DST}"
      chmod u+x "${ICON_DST}"

      # # Mark as trusted
      # if which gio >/dev/null 2>/dev/null; then
      #     gio set -t string "${ICON_DST}" metadata::xfce-exe-checksum "$(sha256sum "${ICON_SRC}" | awk '{print $1}')"
      # fi
    fi
  fi

  # Set default system pref and user pref
  systempath="$WINEPREFIX/drive_c/users/si/AppData/Local/Kakao/KakaoTalk"
  userdir=$(find "$systempath/users" -mindepth 1 -maxdepth 1 -type d | head -n 1)
  cp pref.ini "$systempath/"
  [ -n "$userdir" ] &&
    cp user_pref.ini "$userdir/" &&
    printf "download_path = Z:\\home\\%s\\Downloads\n" "$USER" >>"$userdir/user_pref.ini"
}

###########################################################
#   Font Installer                                              #
###########################################################

function _font_install() {
  FONT_URL='https://campaign-cdn.pstatic.net/0/hangeul/2022/zip_v2/nanum-all.zip'
  DST_FONT="$(mktemp -d)"
  FONT_DIR="${WINEPREFIX}/drive_c/windows/Fonts"

  echo 'Installing Fonts...'
  curl -s "${FONT_URL}" -o "${DST_FONT}/nanum-all.zip" >/dev/null 2>&1
  ! command -v unzip &>/dev/null && sudo pacman -Sy unzip
  unzip "${DST_FONT}/nanum-all.zip" -d "${DST_FONT}" >/dev/null 2>&1
  find "${DST_FONT}" -type f -name "*.ttf" -exec mv -f {} "${FONT_DIR}" \;
  rm -rf "${DST_FONT}"
}

###########################################################
#   Executor                                              #
###########################################################

function _exec_wine() {
  WINE_EXE="$1"

  echo 'Executing Kakaotalk...'
  exec wine "${WINE_EXE}" >/dev/null 2>&1
}

###########################################################
#   Main Function                                         #
###########################################################

# Define a main function
function main() {
  # Configure environment variables
  export LANG='en_US.UTF-8'
  export LC_ALL='en_US.UTF-8'
  export WINEARCH='win64'
  export WINEPREFIX="${WINEPREFIX:-${XDG_DATA_HOME:-${HOME}/.local/share}/wine}/kakaotalk"

  # Install
  WINE_EXE="${WINEPREFIX}/drive_c/Program Files (x86)/Kakao/KakaoTalk/KakaoTalk.exe"
  if ! _check_wine "${WINE_EXE}"; then
    _install_wine "${WINE_EXE}"
  fi

  # Exec
  _exec_wine "${WINE_EXE}"
}

# Execute main function
main "$@"