#!/bin/bash

set -e

# Packages - Build Environment
declare -a BUILD_PACKAGES=(
	"ccache"
	"cmake"
	"g++-10-multilib"
)

# Packages - PCSX2
declare -a PCSX2_PACKAGES=(
	"libaio-dev"
	"libasound2-dev"
	"libcairo2-dev"
	"libegl-dev"
	"libegl1-mesa-dev"
	"libgdk-pixbuf2.0-dev"
	"libgirepository-1.0-1"
	"libgl-dev"
	"libgl1-mesa-dev"
	"libgl1-mesa-dri"
	"libgl1"
	"libgles-dev"
	"libgles-dev"
	"libgles2-mesa-dev"
	"libglib2.0-dev"
	"libglu1-mesa-dev"
	"libglu1-mesa"
	"libglvnd-dev"
	"libglx-dev"
	"libglx-mesa0"
	"libglx0"
	"libgtk-3-dev"
	"libgtk2.0-dev"
	"libharfbuzz-dev"
	"libllvm10"
	"liblzma-dev"
	"libpango1.0-dev"
	"libpcap0.8-dev"
	"libsdl2-dev"
	"libsoundtouch-dev"
	"libwxgtk3.0-gtk3-0v5"
	"libwxgtk3.0-gtk3-dev"
	"libx11-xcb-dev"
	"libxext-dev"
	"libxft-dev"
	"libxml2-dev"
	"portaudio19-dev"
	"zlib1g-dev"
)

# - https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-README.md
install_packages() {
	ARCH=""
	echo "${PLATFORM}"
	if [ "${PLATFORM}" == "x86" ]; then
		ARCH=":i386"
		sudo dpkg --add-architecture i386
	fi

	sudo apt-get -qq update
	# TODO - needed? sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test

	# Install packages needed for building
	BUILD_PACKAGE_STR=""
	for i in "${BUILD_PACKAGES[@]}"; do
		BUILD_PACKAGE_STR="${BUILD_PACKAGE_STR} ${i}"
	done
	echo "Will install the following packages for building - ${BUILD_PACKAGE_STR}"
	sudo apt remove gcc-9 g++-9
	sudo apt-get -y install ${BUILD_PACKAGE_STR}

	sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 10
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 10
	sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 30
	sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 30

	# Install packages needed by pcsx2
	PCSX2_PACKAGES_STR=""
	for i in "${PCSX2_PACKAGES[@]}"; do
		PCSX2_PACKAGES_STR="${PCSX2_PACKAGES_STR} ${i}${ARCH}"
	done
	echo "Will install the following packages for pcsx2 - ${PCSX2_PACKAGES_STR}"
	sudo apt-get -y install ${PCSX2_PACKAGES_STR}
}

generate_cmake() {
	export CC=gcc
	export CXX=g++
	ADDITIONAL_CMAKE_ARGS=""
	if [ "${PLATFORM}" = "x86" ]; then
		ADDITIONAL_CMAKE_ARGS="-D CMAKE_TOOLCHAIN_FILE=cmake/linux-compiler-i386-multilib.cmake"
	fi
	echo "Additional CMake Args - ${ADDITIONAL_CMAKE_ARGS}"

	# Generate CMake into ./build
	cmake \
	-D CMAKE_C_COMPILER_LAUNCHER=ccache \
	-D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
	-D CMAKE_BUILD_TYPE=Release \
	-D BUILD_REPLAY_LOADERS=TRUE \
	-D CMAKE_BUILD_PO=FALSE \
	-D GTK3_API=TRUE ${ADDITIONAL_CMAKE_ARGS} \
	-B build
}

compile() {
	export CCACHE_BASEDIR=${GITHUB_WORKSPACE}
	export CCACHE_DIR=${GITHUB_WORKSPACE}/.ccache
	export CCACHE_COMPRESS="true"
	export CCACHE_COMPRESSLEVEL="6"
	export CCACHE_MAXSIZE="400M"

	cd build
	# Prepare the Cache
	ccache -p
	ccache -z
	# Build
	make -j10 install
	# Save the Cache
	ccache -s
}

case $1 in
install_packages)
	"$@"
	;;
generate_cmake)
	"$@"
	;;
compile)
	"$@"
	;;
esac