#!/bin/bash

#-----------------------------------------------------------------------#
# OpenRGB AppImage Build Script                                         #
#-----------------------------------------------------------------------#

set -x
set -e

#-----------------------------------------------------------------------#
# Build in a temporary directory to keep the system clean               #
# Use RAM disk if possible (if available and not building on a CI       #
# system like Travis)                                                   #
#-----------------------------------------------------------------------#
TEMP_BASE=/tmp
BUILD_DIR=$(mktemp -d -p "$TEMP_BASE" appimage-build-XXXXXX)

#-----------------------------------------------------------------------#
# This checks the Architecture of the system to work out if we're       #
#     building on i386 or x86_64 and saves for later use                #
#-----------------------------------------------------------------------#

if [ ${DEB_HOST_ARCH:0:1} == ${DEB_HOST_GNU_CPU:0:1} ]; then
    ARCH="$DEB_HOST_ARCH"
else
    ARCH="$DEB_HOST_GNU_CPU"
fi
echo Inputs: "$DEB_HOST_ARCH" "$DEB_HOST_GNU_CPU"
echo Calculated: "$ARCH"

#-----------------------------------------------------------------------#
# Small fixes for CamelCase vs lowercase                                #
#-----------------------------------------------------------------------#
TARGET=OpenRGB
patch -p1 -i scripts/AppImage.patch

#-----------------------------------------------------------------------#
# Make sure to clean up build dir, even if errors occur                 #
#-----------------------------------------------------------------------#
cleanup () {
    if [ -d "$BUILD_DIR" ]; then
        rm -rf "$BUILD_DIR"
    fi
}
trap cleanup EXIT

#-----------------------------------------------------------------------#
# Store repo root as variable                                           #
#-----------------------------------------------------------------------#
REPO_ROOT=$(readlink -f $(dirname $(dirname $0)))
OLD_CWD=$(readlink -f .)

#-----------------------------------------------------------------------#
# Switch to build dir                                                   #
#-----------------------------------------------------------------------#
pushd "$BUILD_DIR"

#-----------------------------------------------------------------------#
# Configure build files with qmake                                      #
# we need to explicitly set the install prefix, as qmake's default is   #
# /usr/local for some reason...                                         #
#-----------------------------------------------------------------------#
qmake "$REPO_ROOT"

#-----------------------------------------------------------------------#
# Build project and install files into AppDir                           #
#-----------------------------------------------------------------------#
make -j$(nproc) TARGET="$TARGET"
make install INSTALL_ROOT=AppDir

#-----------------------------------------------------------------------#
# Make sure Qt plugin finds QML sources so it can deploy the imported   #
# files                                                                 #
#-----------------------------------------------------------------------#
export QML_SOURCES_PATHS="$REPO_ROOT"/src

linuxdeploy-"$ARCH".AppImage --appdir AppDir -e "$TARGET" -i "$REPO_ROOT"/qt/OpenRGB.png -d "$REPO_ROOT"/qt/OpenRGB.desktop
linuxdeploy-plugin-qt-"$ARCH".AppImage --appdir AppDir
linuxdeploy-"$ARCH".AppImage --appdir AppDir --output appimage

#-----------------------------------------------------------------------#
# Move built AppImage & udev_rules back into original CWD               #
#-----------------------------------------------------------------------#
mv -v "$BUILD_DIR"/60-openrgb.rules "$OLD_CWD"
mv -v "$TARGET"*.AppImage "$OLD_CWD"