#!/bin/bash
set -euo pipefail

# Install deps
sudo apt update -y
sudo apt install -y libfuse2 wget file

# Get tools
wget -qO appimagetool https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage
chmod +x appimagetool

# x86_64 AppDir
APPDIR_X64="AppDir-x86_64"
rm -rf "$APPDIR_X64"
mkdir -p "$APPDIR_X64/usr/lib/v2rayN" "$APPDIR_X64/usr/bin" "$APPDIR_X64/usr/share/applications" "$APPDIR_X64/usr/share/pixmaps"
cp -rf "$OutputPath64"/* "$APPDIR_X64/usr/lib/v2rayN" || true
[ -f "$APPDIR_X64/usr/lib/v2rayN/v2rayN.png" ] && cp "$APPDIR_X64/usr/lib/v2rayN/v2rayN.png" "$APPDIR_X64/usr/share/pixmaps/v2rayN.png" || true
[ -f "$APPDIR_X64/usr/lib/v2rayN/v2rayN.png" ] && cp "$APPDIR_X64/usr/lib/v2rayN/v2rayN.png" "$APPDIR_X64/v2rayN.png" || true

cat > "$APPDIR_X64/AppRun" <<'APP_RUN'
#!/bin/sh
set -eu
ver_ge() { [ "$1" = "$2" ] && return 0 || [ "$(printf '%s\n' "$1" "$2" | sort -V | tail -n1)" = "$1" ]; }
ldd_out="$(ldd --version 2>&1 || true)"
echo "$ldd_out" | grep -iq musl && { echo "System is too old"; exit 1; }
glibc_ver="$(echo "$ldd_out" | head -n1 | grep -oE '[0-9]+(\.[0-9]+)+' | head -n1 || true)"
[ -z "${glibc_ver:-}" ] && { echo "System is too old"; exit 1; }
ver_ge "$glibc_ver" "2.13" || { echo "System is too old"; exit 1; }
kernel_ver="$(uname -r | cut -d'-' -f1)"
ver_ge "$kernel_ver" "5.14" || { echo "System is too old"; exit 1; }
HERE="$(dirname "$(readlink -f "$0")")"
cd "$HERE/usr/lib/v2rayN"
exec "$HERE/usr/lib/v2rayN/v2rayN" "$@"
APP_RUN
chmod +x "$APPDIR_X64/AppRun"
ln -sf usr/lib/v2rayN/v2rayN "$APPDIR_X64/usr/bin/v2rayN"
cat > "$APPDIR_X64/v2rayN.desktop" <<EOF
[Desktop Entry]
Name=v2rayN
Comment=A GUI client for Windows and Linux, support Xray core and sing-box-core and others
Exec=v2rayN
Icon=v2rayN
Terminal=false
Type=Application
Categories=Network;
EOF
install -Dm644 "$APPDIR_X64/v2rayN.desktop" "$APPDIR_X64/usr/share/applications/v2rayN.desktop"

ARCH=x86_64 ./appimagetool "$APPDIR_X64" "v2rayN-${OutputArch}.AppImage"
file "v2rayN-${OutputArch}.AppImage" | grep -q 'x86-64'

# aarch64 AppDir
APPDIR_ARM64="AppDir-aarch64"
rm -rf "$APPDIR_ARM64"
mkdir -p "$APPDIR_ARM64/usr/lib/v2rayN" "$APPDIR_ARM64/usr/bin" "$APPDIR_ARM64/usr/share/applications" "$APPDIR_ARM64/usr/share/pixmaps"
cp -rf "$OutputPathArm64"/* "$APPDIR_ARM64/usr/lib/v2rayN" || true
[ -f "$APPDIR_ARM64/usr/lib/v2rayN/v2rayN.png" ] && cp "$APPDIR_ARM64/usr/lib/v2rayN/v2rayN.png" "$APPDIR_ARM64/usr/share/pixmaps/v2rayN.png" || true
[ -f "$APPDIR_ARM64/usr/lib/v2rayN/v2rayN.png" ] && cp "$APPDIR_ARM64/usr/lib/v2rayN/v2rayN.png" "$APPDIR_ARM64/v2rayN.png" || true

cat > "$APPDIR_ARM64/AppRun" <<'APP_RUN'
#!/bin/sh
set -eu
ver_ge() { [ "$1" = "$2" ] && return 0 || [ "$(printf '%s\n' "$1" "$2" | sort -V | tail -n1)" = "$1" ]; }
ldd_out="$(ldd --version 2>&1 || true)"
echo "$ldd_out" | grep -iq musl && { echo "System is too old"; exit 1; }
glibc_ver="$(echo "$ldd_out" | head -n1 | grep -oE '[0-9]+(\.[0-9]+)+' | head -n1 || true)"
[ -z "${glibc_ver:-}" ] && { echo "System is too old"; exit 1; }
ver_ge "$glibc_ver" "2.13" || { echo "System is too old"; exit 1; }
kernel_ver="$(uname -r | cut -d'-' -f1)"
ver_ge "$kernel_ver" "6.13" || { echo "System is too old"; exit 1; }
HERE="$(dirname "$(readlink -f "$0")")"
cd "$HERE/usr/lib/v2rayN"
exec "$HERE/usr/lib/v2rayN/v2rayN" "$@"
APP_RUN
chmod +x "$APPDIR_ARM64/AppRun"
ln -sf usr/lib/v2rayN/v2rayN "$APPDIR_ARM64/usr/bin/v2rayN"
cat > "$APPDIR_ARM64/v2rayN.desktop" <<EOF
[Desktop Entry]
Name=v2rayN
Comment=A GUI client for Windows and Linux, support Xray core and sing-box-core and others
Exec=v2rayN
Icon=v2rayN
Terminal=false
Type=Application
Categories=Network;
EOF
install -Dm644 "$APPDIR_ARM64/v2rayN.desktop" "$APPDIR_ARM64/usr/share/applications/v2rayN.desktop"

# aarch64 runtime
wget -qO runtime-aarch64 https://github.com/AppImage/AppImageKit/releases/download/continuous/runtime-aarch64
chmod +x runtime-aarch64

# build aarch64 AppImage
ARCH=aarch64 ./appimagetool --runtime-file ./runtime-aarch64 "$APPDIR_ARM64" "v2rayN-${OutputArchArm}.AppImage"
file "v2rayN-${OutputArchArm}.AppImage" | grep -q 'ARM aarch64'