#!/bin/bash

# Simple recipe to generate an appimage for this app
#
# Options:
#   * -u will upload your AppImage file after success to github under
#      "continuous builds"
#
# Requirements:
#   * VERSION as an ENV var, if not detected will use actual github
#     version + commit info
#   * This must be run after a successfully build and installation into a
#     prefix passed as the PREFIX variable
#   * Must be run on a Linux version as old as the far distro you need to
#     support, tested successfully on Ubuntu 14.04 Trusty Tar
#   * If you plan to use the "-u" option you need to configure some things
#     for it to work, check this https://github.com/probonopd/uploadtool#usage
#
# On any troubles invoke stdevPavelmc in github

# PREFIX variable must be set before calling this script. It points to the
# prefix in which gqrx is installed and from which dependency libraries will be
# gathered.
#PREFIX="micromamba/envs/gqrx"
APP="$PREFIX/bin/gqrx"

# No need to tweak below unless you move files on the actual project
DESKTOP="dk.gqrx.gqrx.desktop"
ICON="resources/icons/gqrx.svg"

# clean log space
echo "==================================================================="
echo "                Starting to build the AppImage..."
echo "==================================================================="
echo ""

export VERSION=$(<build/version.txt)

# version notice
echo "You are building Gqrx version: $VERSION"
echo ""

# basic tests
if [ ! -f "$APP" ] ; then
    echo "Error: the app file is no in the path we need it, set the PREFIX var before running this script"
    exit 1
fi

if [ ! -f "$DESKTOP" ] ; then
    echo "Error: can't find the desktop file, please update the DESKTOP var on the script"
    exit 1
fi

if [ ! -f "$ICON" ] ; then
    echo "Error: can't find the default icon, please update the ICON var in the script"
    exit 1
fi

# prepare the ground
rm -rdf AppDir 2>/dev/null
rm -rdf Gqrx-*.AppImage 2>/dev/null

# download & set all needed tools
wget -c -nv "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
wget -c -nv "https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage"
wget -c -nv "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage"
chmod a+x *.AppImage

# build library arguments so soapy module dependencies are included
soapy_module_libs=("$PREFIX"/lib/SoapySDR/modules*/*)
linuxdeploy_lib_args=()
for lib in ${soapy_module_libs[@]}; do
    linuxdeploy_lib_args+=( "-l" "$lib" )
done

# force otherwise excluded libraries that we really need because of library
# dependence on newer versions
linuxdeploy_lib_args+=(
    "-l" "$PREFIX"/lib/libasound.so.2
    "-l" "$PREFIX"/lib/libexpat.so.1
    "-l" "$PREFIX"/lib/libfontconfig.so.1
    "-l" "$PREFIX"/lib/libfreetype.so.6
    "-l" "$PREFIX"/lib/libgcc_s.so.1
    "-l" "$PREFIX"/lib/libgmp.so.10
    "-l" "$PREFIX"/lib/libgpg-error.so.0
    "-l" "$PREFIX"/lib/libharfbuzz.so.0
    "-l" "$PREFIX"/lib/libjack.so.0
    "-l" "$PREFIX"/lib/libstdc++.so.6
    "-l" "$PREFIX"/lib/libusb-1.0.so.0
    "-l" "$PREFIX"/lib/libuuid.so.1
    "-l" "$PREFIX"/lib/libxcb.so.1
    "-l" "$PREFIX"/lib/libz.so.1
)

mkdir -p ./AppDir/apprun-hooks
echo 'export CONDA_PREFIX="$APPDIR/usr"' >./AppDir/apprun-hooks/soapy-hook.sh
echo 'export UHD_PKG_PATH="$APPDIR/usr"' >./AppDir/apprun-hooks/uhd-hook.sh
echo 'export FONTCONFIG_FILE="$APPDIR/etc/fonts/fonts.conf"
export FONTCONFIG_PATH="$APPDIR/etc/fonts"' >./AppDir/apprun-hooks/fontconfig-hook.sh

# since libs come from prefix, little use in querying copyright files with dpkg-query
export DISABLE_COPYRIGHT_FILES_DEPLOYMENT=1

# need to set QMAKE variable for linuxdeploy-plugin-qt so it uses PREFIX's Qt
export QMAKE="$PREFIX/bin/qmake6"

./linuxdeploy-x86_64.AppImage -e "$APP" -d "$DESKTOP" -i "$ICON" "${linuxdeploy_lib_args[@]}" -p qt --appdir=./AppDir
RESULT=$?

# copy Soapy modules into their expected path in the AppDir
cp -R "$PREFIX"/lib/SoapySDR ./AppDir/usr/lib/SoapySDR

# copy fontconfig configuration files that the FONTCONFIG_FILE env var points to
mkdir -p ./AppDir/etc/
cp -RL "$PREFIX"/etc/fonts ./AppDir/etc/fonts
# remove any config file lines that refer to the old prefix if it's not /usr
if [ "${PREFIX:0:4}" != "/usr" ] ; then
    sed -i "\|$PREFIX|d" ./AppDir/etc/fonts/fonts.conf
fi

# finally make the AppImage
./appimagetool-x86_64.AppImage AppDir/

# check build success
if [ $RESULT -ne 0 ] ; then
    # warning something gone wrong
    echo ""
    echo "ERROR: Aborting as something gone wrong, please check the logs"
    exit 1
else
    # success
    echo ""
    echo "Success build, check your file:"
    ls -lh Gqrx-*.AppImage
fi

if [ "$1" == "-u" ] ; then
    # must upload to continuous releases
    # see https://github.com/probonopd/uploadtool#usage for configs to be done
    # for this to work as needed
    wget -c https://github.com/probonopd/uploadtool/raw/master/upload.sh
    bash upload.sh Gqrx-*.AppImage
fi