#!/bin/bash

# GIMP 3.x.x Update/Build script for Porteus
# Version 2026-03-28 (Unified Minimal/Full)

# Copyright 2023-2030, Blaze, Dankov, Russia
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Root check
if [ "$(whoami)" != "root" ]; then
    echo -e "\nYou need to be root to run this script.\n"
    exit 1
fi

BOLD="\e[1m"; CYAN="\e[96m"; GREEN="\e[92m"; RED="\e[31m"; RESET="\e[0m"

PRGNAM=${PRGNAM:-gimp}
BUILD=${BUILD:-1}
ARCH=$( uname -m )
TMPDIR=/tmp/portch
PKG=$TMPDIR/package-$PRGNAM
PKGINFO=$PKG/var/lib/pkgtools/packages
ICON=$PKG/usr/share/applications/gimp.desktop
OUTPUT=${OUTPUT:-/tmp}
LIBDIRSUFFIX=$([ "$ARCH" = "x86_64" ] && echo "64" || echo "")

# Detect latest GIMP version from mirror
GIMP_TREE=$(echo 'https://www.nic.funet.fi/pub/mirrors/ftp.gimp.org/pub/gimp')
GIMP_MAJOR=$(curl -skL -A "Mozilla/5.0" ${GIMP_TREE} | grep -oP 'v\d+\.\d+(?=/)' | tail -1)
VERSION=$(lynx -source "${GIMP_TREE}/${GIMP_MAJOR}/SHA256SUMS" | grep -oP '(?<=gimp-)\d+\.\d+\.\d+(?=\.tar\.)' | tail -1)

# Check installed version 
if [[ -f "/usr/bin/gimp" ]]; then
  MYVER=${MYVER:-$(basename /var/lib/pkgtools/packages/gimp* | tail -1 | cut -d'-' -f2)}
fi

if [ "$MYVER" == "$VERSION" ]; then
    echo -e "You already have the latest ${GREEN}$MYVER${RESET} version of $PRGNAM"
    sleep 2 && exit
fi

read -p "$(echo -e "Would you like to build $PRGNAM ${GREEN}$VERSION${RESET} xzm module? [y/n]: ")" -n 1 -r -s && echo
[[ $REPLY =~ ^[Yy]$ ]] || exit

# Build mode selection
echo -e "${BOLD}Select GIMP build mode:${RESET}"
echo "1) Full    (Standard: Includes OpenCL, JS scripts, Python, advanced filters)"
echo "2) Minimal (Lightweight: No JS scripts, advanced filters, etc...)"
read -p "Your choice [1/2]: " B_MODE

if [ "$B_MODE" == "2" ]; then
    MODE="minimal"
    echo -e "Selected mode: ${CYAN}MINIMAL${RESET}"
else
    MODE="full"
    echo -e "Selected mode: ${GREEN}FULL${RESET}"
fi

cleanup(){
[ -d $TMPDIR ] && rm -rf $TMPDIR
[ -d $PKG ] && rm -rf $PKG
rm -f ${OUTPUT}/*.txz
exit	
}

rm -rf $PKG ${OUTPUT}/*.txz
mkdir -p $TMPDIR $PKG
cd $PKG

# Auto-detect Desktop Environment (for su/root cases)
if [ -z "$XDG_CURRENT_DESKTOP" ]; then
    if pgrep -x "cinnamon" > /dev/null; then XDG_CURRENT_DESKTOP="X-Cinnamon"
    elif pgrep -x "cosmic-session" > /dev/null; then XDG_CURRENT_DESKTOP="COSMIC"
    elif pgrep -x "gnome-session|gnome-shell|mutter" > /dev/null; then XDG_CURRENT_DESKTOP="GNOME"
    elif pgrep -x "ksmserver|plasmashell|kwin_wayland" > /dev/null; then XDG_CURRENT_DESKTOP="KDE"
    elif pgrep -x "lxsession" > /dev/null; then XDG_CURRENT_DESKTOP="LXDE"
    elif pgrep -x "lxqt-session" > /dev/null; then XDG_CURRENT_DESKTOP="LXQt"
    elif pgrep -x "mate-session" > /dev/null; then XDG_CURRENT_DESKTOP="MATE"
    elif pgrep -x "openbox" > /dev/null; then XDG_CURRENT_DESKTOP="openbox"
    elif pgrep -x "xfce4-session" > /dev/null; then XDG_CURRENT_DESKTOP="XFCE"
    fi
fi
export XDG_CURRENT_DESKTOP

# Package Fetching Logic (DE Awareness)
GIMP_BASE="gimp appstream gegl gexiv2 libfyaml libmypaint libxmlb llvm"
GIMP_FULL="cfitsio gcc-gfortran gjs Imath lensfun libwmf LibRaw mozjs140 openblas openexr openjph suitesparse"
BABL=""

# Add babl (doesn't include Cinnamon and MATE)
if [[ "${XDG_CURRENT_DESKTOP,,}" == "gnome"   || \
      "${XDG_CURRENT_DESKTOP,,}" == "kde"     || \
      "${XDG_CURRENT_DESKTOP,,}" == "lxde"    || \
      "${XDG_CURRENT_DESKTOP,,}" == "lxqt"    || \
      "${XDG_CURRENT_DESKTOP,,}" == "xfce"    || \
      "${XDG_CURRENT_DESKTOP,,}" == "openbox" || \
      "${XDG_DESKTOP_SESSION,,}" == "openbox" ]]; then
    BABL="babl"
fi

if [ "$MODE" == "minimal" ]; then
    getpkg -q $GIMP_BASE $BABL
else
    getpkg -q $GIMP_BASE $GIMP_FULL $BABL
fi

# Library Extraction (LLVM is now extracted in BOTH modes)
echo "Extracting Clang library..."
[ -f "${OUTPUT}"/llvm-*.txz ] && tar -xf "${OUTPUT}"/llvm-*.txz -C "$PKG" --wildcards "usr/lib${LIBDIRSUFFIX}/libclang.so*"

if [ "$MODE" == "full" ]; then
    echo "Extracting extra libraries for Full mode..."
    [ -f "${OUTPUT}"/gcc-gfortran-*.txz ] && tar -xf "${OUTPUT}"/gcc-gfortran-*.txz -C "$PKG" --wildcards "usr/lib${LIBDIRSUFFIX}/libgfortran.so.*"
    [ -f "${OUTPUT}"/mozjs*-*.txz ] && tar -xf "${OUTPUT}"/mozjs*-*.txz -C "$PKG" --wildcards "usr/lib${LIBDIRSUFFIX}/libmozjs-*.so*"
fi

# Symlink creation
cd "$PKG/usr/lib${LIBDIRSUFFIX}"

# CLANG symlinks
REAL_CLANG=$(ls -S libclang.so.* 2>/dev/null | head -n 1)
[ -n "$REAL_CLANG" ] && { ln -sf "$REAL_CLANG" "$(echo $REAL_CLANG | cut -d. -f1-4)"; ln -sf "$REAL_CLANG" "libclang.so"; }

if [ "$MODE" == "full" ]; then
    # GFortran symlinks
    REAL_GFORTRAN=$(ls -S libgfortran.so.* 2>/dev/null | head -n 1)
    [ -n "$REAL_GFORTRAN" ] && { ln -sf "$REAL_GFORTRAN" "libgfortran.so.$(echo $REAL_GFORTRAN | cut -d. -f3)"; ln -sf "$REAL_GFORTRAN" "libgfortran.so"; }
    
    # MozJS symlinks
    REAL_MOZJS=$(ls -S libmozjs-*.so.*.* 2>/dev/null | head -n 1)
    [ -n "$REAL_MOZJS" ] && { ln -sf "$REAL_MOZJS" "$(echo $REAL_MOZJS | rev | cut -d. -f3- | rev)"; }
fi

cd $PKG

# Install downloaded .txz files to the package root
rm -f ${OUTPUT}/{gcc-gfortran,mozjs*-*,llvm}-*.txz
for i in $(ls ${OUTPUT}/*.txz | sort); do ROOT=$PKG installpkg $i >/dev/null; done

# Cleanup
echo "Cleaning up unnecessary files..."
rm -rf $PKG/usr/{doc,include,man}
rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/{cmake,pkgconfig}
rm -rf $PKG/usr/libexec
rm -rf $PKG/usr/share/{appstream,bash-completion,doc,gettext,ghostscript,gir-1.0,gjs-1.0,gtk-doc,installed-tests,libwmf,metainfo,vala}
rm -rf $PKG/var/lib/pkgtools/scripts/*

# Binary filtering
find "$PKG/usr/bin" -maxdepth 1 \( -type f -o -type l \) \
    ! -name "gimp*" \
    ! -name "gegl*" \
    ! -name "babl*" \
    -delete

# Remove MimeTypes
sed -i 's|application/pdf;||' ${ICON}
sed -i 's|image/dds;image/g3-fax;||' ${ICON}
sed -i 's|image/gif;||' ${ICON}
sed -i 's|image/jp2;image/jpeg;||' ${ICON}
sed -i 's|image/bmp;||' ${ICON}
sed -i 's|image/png;||' ${ICON}
sed -i 's|image/svg+xml;||' ${ICON}
sed -i 's|image/tiff;||' ${ICON}
sed -i 's|image/vnd.wap.wbmp;image/webp;||' ${ICON}
sed -i 's|image/x-dcm;image/x-dcx;image/x-eps;||' ${ICON}
sed -i 's|image/x-fits;image/x-flic;image/x-icns;image/x-ico;||' ${ICON}
sed -i 's|image/x-jp2-codestream;image/x-pcx;||' ${ICON}
sed -i 's|image/x-pixmap;image/x-portable-anymap;image/x-portable-arbitrarymap;||' ${ICON}
sed -i 's|image/x-portable-bitmap;image/x-portable-floatmap;image/x-portable-graymap;image/x-portable-pixmap;||' ${ICON}
sed -i 's|image/x-psp;image/x-sgi;image/x-sun-raster;image/x-tga;image/x-wmf;||' ${ICON}
sed -i 's|image/x-xbitmap;image/x-xwindowdump||' ${ICON}

# Add Russian translation
sed -i 's|Name\[ru\]\=GNU Image Manipulation Program|Name\[ru\]\=Редактор изображений GIMP|' $PKG/usr/share/applications/gimp.desktop

# Locale selection and filtering function
array_menu(){
    echo -e "\n$1"
    echo -e "$2" 
    select CHOICE in "${RESULT[@]}"; do
        [ -z "$CHOICE" ] && CHOICE="en_US"
        echo -e "${BOLD}${CYAN}${CHOICE}${RESET} locale chosen"; break
    done
}

RESULT=(af am ar as ast az be bg bn br bs ca 'ca@valencia' ckb cs csb da de dz el en_CA en_GB en_US eo es et eu fa fi fr fur fy ga gd gl gu he hi hr hu hy id is it ja ka kab kk km kn ko ky lt lv mai mk ml mn mr ms my nb nds ne nl nn nn_NO oc pa pl pt pt_BR ro ru rw sc se si sk sl sq sr 'sr@latin' sv ta te tg th tr tt uk uz vi wa xh yi zh_CN zh_HK zh_TW)

array_menu "Select a locale from the list:" "Note: en_US and your choice will be kept.\nAll other locales will be removed."
find $PKG/usr/share/locale/ -maxdepth 1 -type d ! -name 'locale' | grep -Ev "(${CHOICE}|en_US)" | xargs -i rm -rf {}
find $PKG/usr/share/locale -type f ! -name 'gimp30*.mo' -delete

# Apply the same logic to GIMP extensions locales if they exist
if [ -d $PKG/usr/lib${LIBDIRSUFFIX}/gimp ]; then
    find $PKG/usr/lib${LIBDIRSUFFIX}/gimp/*.*/extensions/org.gimp.extension.goat-exercises/locale -maxdepth 1 -type d ! -name 'locale' 2>/dev/null | grep -Ev "(${CHOICE}|en_US)" | xargs -i rm -rf {}
fi

dir2xzm $PKG $OUTPUT/$PRGNAM-$VERSION-$CHOICE-$MODE-$ARCH-$BUILD.xzm

# Check on GIMP 3.x.x xzm file exists in /tmp
if [ -f "${OUTPUT}/${PRGNAM}-${VERSION}-${CHOICE}-${MODE}-${ARCH}-${BUILD}.xzm" ]; then
    echo -e "\n${BOLD}Your ${PRGNAM} module is at: ${GREEN}${BOLD}${OUTPUT}/${PRGNAM}-${VERSION}-${CHOICE}-${MODE}-${ARCH}-${BUILD}.xzm${RESET}\n${BOLD}Please copy it to your modules folder to survive a reboot.${RESET}\n"
else
    echo -e "\n${RED}${BOLD}Faile. Your $PRGNAM module is not built.${RESET}\n"
fi
cleanup