#!/bin/bash

#
#  JoeyBuild
#  Copyright (C) 2018-2023 Scott Duensing <scott@kangaroopunch.com>
#
#  This software is provided 'as-is', without any express or implied
#  warranty.  In no event will the authors be held liable for any damages
#  arising from the use of this software.
#
#  Permission is granted to anyone to use this software for any purpose,
#  including commercial applications, and to alter it and redistribute it
#  freely, subject to the following restrictions:
#
#  1. The origin of this software must not be misrepresented; you must not
#     claim that you wrote the original software. If you use this software
#     in a product, an acknowledgment in the product documentation would be
#     appreciated but is not required.
#  2. Altered source versions must be plainly marked as such, and must not be
#     misrepresented as being the original software.
#  3. This notice may not be removed or altered from any source distribution.
#


M_TRIPLE=


source ${G_EHOME}/helpers/SDL2.helper
source ${G_EHOME}/helpers/GCC.helper


function architectures() {
	echo "i386 x86_64 aarch64"
}


function assemble() {
	local ARCH=$1
	local PASS=$2
	local LOG=$3
	local AFILES=(${*:4})

	setCompiler ${ARCH} ${PASS}
	assembleGCC ${ARCH} ${PASS} ${LOG} "${AFILES[@]}"
	unSetCompiler
}


function buildJoeyLib() {
	local ARCH=$1
	local PASS=$2

	export CFLAGS="-Wall -D_REENTRANT_ -I${G_INSTALLED}/include -c"
	export LDFLAGS="-lm -ldl -lpthread"

	if [[ "${PASS}" == "debug" ]]; then
		export CFLAGS="-DJOEY_DEBUG ${CFLAGS}"
	fi

	setCompiler ${ARCH} ${PASS}
	buildJoeyLibSDL2 ${PASS}
	unSetCompiler
}


function buildMacOSXToolchain() {
	local SDK=$1
	local XCODE=$2
	local PLATFORM=$3

	if [[ ! -d osxcross ]]; then
		git clone https://skunkworks.kangaroopunch.com/mirrors/osxcross.git
	fi

		if [[ ! -f cross/${PLATFORM}/toolchain.cmake ]]; then
			pushd osxcross
				# Do we have an existing SDK tarball?
				if [[ ! -f "../${SDK}" ]]; then
					# Nope.  Build tarball and keep for later.
					./tools/gen_sdk_package_pbzx.sh "../${XCODE}"
					mv -f MacOSX* "../${SDK}"
				fi
				# Put tarball in place.
				cp -f "../${SDK}" tarballs/.
				# Build SDK.
				UNATTENDED=1 ./build.sh
				# Build compiler runtime.
				if [[ -d /usr/lib/llvm-10/lib/clang/10.0.0/lib/darwin ]]; then
					tSudo rm -rf /usr/lib/llvm-10/lib/clang/10.0.0/lib/darwin
				fi
				tSudo ENABLE_COMPILER_RT_INSTALL=1 ./build_compiler_rt.sh
				# Move results into cross compiler location.
				mkdir -p ../cross/${PLATFORM}
				mv -f target/* ../cross/${PLATFORM}
				tSudo mv -f /usr/lib/llvm-10/lib/clang/10.0.0/lib/darwin ../cross/${PLATFORM}/.
				# Tidy up for next build.
				./cleanup.sh
				rm -f tarballs/*
			popd
		fi
}


function compile() {
	local ARCH=$1
	local PASS=$2
	local LOG=$3
	local CFILES=(${*:4})

	export CFLAGS="-Wall -D_THREAD_SAFE"

	setCompiler ${ARCH} ${PASS}
	compileGCC ${ARCH} ${PASS} ${LOG} "${CFILES[@]}"
	unSetCompiler
}

function enabled() {
	echo 1
}


function friendlyName() {
	echo "Modern MacOS"
}


function install() {
	local ARCH=$1
	local PASS=$2

	# Debug is the first pass, so build our toolchains then.
	if [[ "${ARCH}" == "aarch64" ]]; then
		if [[ "${PASS}" == "debug" ]]; then
			buildMacOSXToolchain "${CONFIG_MACOS_SDK_11_3}" "${CONFIG_XCODE_12_5_1_XIP}" macos-apple
		fi
		SDL2_TAG=97a5e744497ff7cc93edc5119d67cad3ee86dd57
	else
		if [[ "${PASS}" == "debug" ]]; then
			buildMacOSXToolchain "${CONFIG_MACOS_SDK_10_13}" "${CONFIG_XCODE_9_4_1_XIP}" macos-intel
		fi
		SDL2_TAG=25f9ed87ff6947d9576fc9d79dee0784e638ac58
	fi

	setCompiler ${ARCH} ${PASS}
	buildSDL2 ${SDL2_TAG} ${M_TRIPLE}
	unSetCompiler
}


function link() {
	local ARCH=$1
	local PASS=$2
	local LOG=$3
	local OFILES=(${*:4})

	export CFLAGS="-Wall -D_THREAD_SAFE"
	if [[ "${ARCH}" == "aarch64" ]]; then
		export LDFLAGS="-lm -liconv -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-weak_framework,CoreHaptics -Wl,-weak_framework,GameController -Wl,-framework,ForceFeedback -lobjc -Wl,-framework,CoreVideo -Wl,-framework,Cocoa -Wl,-framework,Carbon -Wl,-framework,IOKit -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
	else
		export LDFLAGS="-lm -liconv -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,ForceFeedback -lobjc -Wl,-framework,CoreVideo -Wl,-framework,Cocoa -Wl,-framework,Carbon -Wl,-framework,IOKit -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
	fi

	setCompiler ${ARCH} ${PASS}
	linkGCC MacOS ${ARCH} ${PASS} "" "" ${LOG} "${OFILES[@]}"
	unSetCompiler
}


function package() {
	local ARCH=$1
	local PASS=$2
	local LOG=$3
	local DFILES=(${*:4})

	packageGCC MacOS ${ARCH} ${PASS} ${LOG} "${DFILES[@]}"
}


function setCompiler() {
	local ARCH=$1
	local PASS=$2
	local CROSS=

	if [[ "${ARCH}" == "aarch64" ]]; then
		M_TRIPLE="${ARCH}-apple-darwin20.4"
		CROSS=macos-apple
	else
		M_TRIPLE="${ARCH}-apple-darwin17"
		CROSS=macos-intel
	fi

	export PATH=${G_EHOME}/cross/${CROSS}/bin:${G_ORIGINAL_PATH}
	export LD_LIBRARY_PATH=${G_EHOME}/cross/${CROSS}/lib

	tSudo ln -sf ${G_EHOME}/cross/${CROSS}/darwin/ /usr/lib/llvm-10/lib/clang/10.0.0/lib/.

	export CC=${M_TRIPLE}-clang
	export LD=${M_TRIPLE}-c++
	export AR=${M_TRIPLE}-ar
}


function unSetCompiler() {
	export CC=
	export LD=
	export AR=

	export LD_LIBRARY_PATH=
	export PATH=${G_ORIGINAL_PATH}
}