#!/bin/bash
# 💫 https://github.com/JaKooLit 💫 #
# Aylur's GTK Shell #

ags=(
    node-typescript 
    npm 
    meson 
    libgjs-dev 
    gjs 
    gobject-introspection
    libgirepository1.0-dev
    gir1.2-gtk-4.0
    gir1.2-gtklayershell-0.1
    libgtk-layer-shell-dev 
    libgtk-3-dev
    libadwaita-1-dev
    libpam0g-dev 
    libpulse-dev 
    libdbusmenu-gtk3-dev 
    libsoup-3.0-dev
    ninja-build
    build-essential
    pkg-config
)

f_ags=(
    npm
)

build_dep=(
    pam
)

# specific tags to download
ags_tag="v1.9.0"

## WARNING: DO NOT EDIT BEYOND THIS LINE IF YOU DON'T KNOW WHAT YOU ARE DOING! ##
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# Change the working directory to the parent directory of the script
PARENT_DIR="$SCRIPT_DIR/.."
cd "$PARENT_DIR" || { echo "${ERROR} Failed to change directory to $PARENT_DIR"; exit 1; }

# Source the global functions script
if ! source "$(dirname "$(readlink -f "$0")")/Global_functions.sh"; then
  echo "Failed to source Global_functions.sh"
  exit 1
fi

# Set the name of the log file to include the current date and time
LOG="Install-Logs/install-$(date +%d-%H%M%S)_ags.log"
MLOG="install-$(date +%d-%H%M%S)_ags2.log"

# Check if AGS is installed
if command -v ags &>/dev/null; then
    AGS_VERSION=$(ags -v | awk '{print $NF}')
    if [[ "$AGS_VERSION" == "1.9.0" ]]; then
        printf "${INFO} ${MAGENTA}Aylur's GTK Shell v1.9.0${RESET} is already installed.\n"
        read -r -p "Reinstall v1.9.0 anyway? [y/N]: " REPLY
        case "$REPLY" in
          [yY]|[yY][eE][sS])
            printf "${NOTE} Reinstalling Aylur's GTK Shell v1.9.0...\n"
            ;;
          *)
            printf "Skipping reinstallation.\n"
            printf "\n%.0s" {1..2}
            exit 0
            ;;
        esac
    fi
fi

# Installation of main components
printf "\n%s - Installing ${SKY_BLUE}Aylur's GTK shell $ags_tag${RESET} Dependencies \n" "${INFO}"

# Installing ags Dependencies
for PKG1 in "${ags[@]}"; do
  install_package "$PKG1" "$LOG"
done

for force_ags in "${f_ags[@]}"; do
   re_install_package "$force_ags" 2>&1 | tee -a "$LOG"
  done

printf "\n%.0s" {1..1}

for PKG1 in "${build_dep[@]}"; do
  build_dep "$PKG1" "$LOG"
done

#install typescript by npm
sudo npm install --global typescript 2>&1 | tee -a "$LOG"

# ags v1
printf "${NOTE} Install and Compiling ${SKY_BLUE}Aylur's GTK shell $ags_tag${RESET}..\n"

# Remove previous sources (both legacy "ags" and tagged "ags_v1.9.0")
for SRC_DIR in "ags" "ags_v1.9.0"; do
    if [ -d "$SRC_DIR" ]; then
        printf "${NOTE} Removing existing %s directory...\\n" "$SRC_DIR"
        rm -rf "$SRC_DIR"
    fi
done

printf "\n%.0s" {1..1}
printf "${INFO} Kindly Standby...cloning and compiling ${SKY_BLUE}Aylur's GTK shell $ags_tag${RESET}...\n"
printf "\n%.0s" {1..1}
# Clone repository with the specified tag and capture git output into MLOG
if git clone --depth=1 https://github.com/JaKooLit/ags_v1.9.0.git; then
    cd ags_v1.9.0 || exit 1
    npm install
    meson setup build
   if sudo meson install -C build 2>&1 | tee -a "$MLOG"; then
    printf "\n${OK} ${YELLOW}Aylur's GTK shell $ags_tag${RESET} installed successfully.\n" 2>&1 | tee -a "$MLOG"

    # Patch installed AGS launchers to ensure GI typelibs in /usr/local/lib are discoverable in GJS ESM
    printf "${NOTE} Applying AGS launcher patch for GI typelibs search path...\n"

    patch_ags_launcher() {
      local target="$1"
      if ! sudo test -f "$target"; then
        return 1
      fi

      # 1) Remove deprecated GIR Repository path tweaks and GIRepository import (harmless if absent)
      sudo sed -i \
        -e '/Repository\.prepend_search_path/d' \
        -e '/Repository\.prepend_library_path/d' \
        -e '/gi:\/\/GIRepository/d' \
        "$target"

      # 2) Ensure GLib import exists (insert after first import line, or at top if none)
      if ! sudo grep -q '^import GLib from "gi://GLib";' "$target"; then
        TMPF=$(sudo mktemp)
        sudo awk 'BEGIN{added=0} {
          if (!added && $0 ~ /^import /) { print; print "import GLib from \"gi://GLib\";"; added=1; next }
          print
        } END { if (!added) print "import GLib from \"gi://GLib\";" }' "$target" | sudo tee "$TMPF" >/dev/null
        sudo mv "$TMPF" "$target"
      fi

      # 3) Inject GI_TYPELIB_PATH export right after the GLib import (once)
      if ! sudo grep -q 'GLib.setenv("GI_TYPELIB_PATH"' "$target"; then
        TMPF=$(sudo mktemp)
        sudo awk '{print} $0 ~ /^import GLib from "gi:\/\/GLib";$/ {print "const __old = GLib.getenv(\"GI_TYPELIB_PATH\");"; print "GLib.setenv(\"GI_TYPELIB_PATH\", \"/usr/local/lib/x86_64-linux-gnu:/usr/local/lib64:/usr/local/lib:/usr/local/lib64/girepository-1.0:/usr/local/lib/girepository-1.0:/usr/local/lib/x86_64-linux-gnu/girepository-1.0:/usr/lib/x86_64-linux-gnu/girepository-1.0:/usr/lib/girepository-1.0:/usr/lib/ags:/usr/local/lib/ags:/usr/lib64/ags\" + (__old ? \":\" + __old : \"\"), true);"; print "const __oldld = GLib.getenv(\"LD_LIBRARY_PATH\");"; print "GLib.setenv(\"LD_LIBRARY_PATH\", \"/usr/local/lib/x86_64-linux-gnu:/usr/local/lib64:/usr/local/lib\" + (__oldld ? \":\" + __oldld : \"\"), true);"}' "$target" | sudo tee "$TMPF" >/dev/null
        sudo mv "$TMPF" "$target"
      fi

      # 4) Ensure LD_LIBRARY_PATH export exists even if GI_TYPELIB_PATH was already present
      if ! sudo grep -q 'GLib.setenv("LD_LIBRARY_PATH"' "$target"; then
        TMPF=$(sudo mktemp)
        sudo awk '{print} $0 ~ /^import GLib from "gi:\/\/GLib";$/ {print "const __oldld = GLib.getenv(\"LD_LIBRARY_PATH\");"; print "GLib.setenv(\"LD_LIBRARY_PATH\", \"/usr/local/lib64:/usr/local/lib\" + (__oldld ? \":\" + __oldld : \"\"), true);"}' "$target" | sudo tee "$TMPF" >/dev/null
        sudo mv "$TMPF" "$target"
      fi

      # Restore executable bit for bin wrappers (mv from mktemp resets mode to 0600)
      case "$target" in
        */bin/ags)
          sudo chmod 0755 "$target" || true
          ;;
      esac

      printf "${OK} Patched: %s\n" "$target"
      return 0
    }

    # Try common locations
    for CAND in \
      "/usr/local/share/com.github.Aylur.ags/com.github.Aylur.ags" \
      "/usr/share/com.github.Aylur.ags/com.github.Aylur.ags" \
      "/usr/local/bin/ags" \
      "/usr/bin/ags"; do
      patch_ags_launcher "$CAND" || true
    done

    # Create an env-setting wrapper for AGS to ensure GI typelibs/libs are discoverable
    printf "${NOTE} Creating env wrapper /usr/local/bin/ags...\n"
    sudo tee /usr/local/bin/ags >/dev/null <<'WRAP'
#!/usr/bin/env bash
set -euo pipefail
cd "$HOME" 2>/dev/null || true
# Locate AGS ESM entry
MAIN_JS="/usr/local/share/com.github.Aylur.ags/com.github.Aylur.ags"
if [ ! -f "$MAIN_JS" ]; then
  MAIN_JS="/usr/share/com.github.Aylur.ags/com.github.Aylur.ags"
fi
if [ ! -f "$MAIN_JS" ]; then
  echo "Unable to find AGS entry script (com.github.Aylur.ags) in /usr/local/share or /usr/share" >&2
  exit 1
fi
# Ensure GI typelibs and native libs are discoverable before gjs ESM loads
export GI_TYPELIB_PATH="/usr/local/lib/x86_64-linux-gnu:/usr/local/lib64:/usr/local/lib:/usr/local/lib64/girepository-1.0:/usr/local/lib/girepository-1.0:/usr/local/lib/x86_64-linux-gnu/girepository-1.0:/usr/lib/x86_64-linux-gnu/girepository-1.0:/usr/lib/girepository-1.0:/usr/lib64/girepository-1.0:/usr/lib/ags:/usr/local/lib/ags:/usr/lib64/ags:${GI_TYPELIB_PATH-}"
export LD_LIBRARY_PATH="/usr/local/lib/x86_64-linux-gnu:/usr/local/lib64:/usr/local/lib:${LD_LIBRARY_PATH-}"
exec /usr/bin/gjs -m "$MAIN_JS" "$@"
WRAP
    sudo chmod 0755 /usr/local/bin/ags
    # Ensure ESM entry is readable by gjs
    sudo chmod 0644 /usr/local/share/com.github.Aylur.ags/com.github.Aylur.ags 2>/dev/null || true
    sudo chmod 0644 /usr/share/com.github.Aylur.ags/com.github.Aylur.ags 2>/dev/null || true
    printf "${OK} AGS wrapper installed at /usr/local/bin/ags\n"
  else
    echo -e "\n${ERROR} ${YELLOW}Aylur's GTK shell $ags_tag${RESET} Installation failed\n " 2>&1 | tee -a "$MLOG"
   fi
    # Move logs to Install-Logs directory
    mv "$MLOG" ../Install-Logs/ || true
    cd ..
else
    echo -e "\n${ERROR} Failed to download ${YELLOW}Aylur's GTK shell $ags_tag${RESET} Please check your connection\n" 2>&1 | tee -a "$LOG"
    mv "$MLOG" ../Install-Logs/ || true
    exit 1
fi

printf "\n%.0s" {1..2}