require "./context.cr"
require "./recipe.cr"

extend Package

# FIXME: recipe.clean? context autoclean?
context = Context.new()
context.packaging_backend = "apk"

recipes = [] of Package::Recipe

# FIXME: context.new_recipe? context.recipe?
recipes << Recipe.new(context, "hello", "2.10").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/hello/hello-2.10.tar.gz"

	# This is a voluntary mix of automatic and manual build
	# instructions.
	# Also, installing in /package makes testing with a real-life
	# package manager trivial and reduces the damage done in case
	# of… containment failure. ]:->
	recipe.instructions.configure << "cd hello-#{recipe.version} && ./configure --prefix=/usr"

	recipe.url = "https://www.gnu.org/software/hello/"
	recipe.description = "The GNU Hello program produces a familiar, friendly greeting."
	recipe.dependencies << "gettext"

	# Should be automatic now.
	#recipe.packages << Package::Package.new(recipe).tap do |package|
	#	package.name = "#{recipe.name}-man"
	#	package.files = ["/package/share/man"]
	#end
end

recipes << Recipe.new(context, "automake", "1.16").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/automake/automake-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "autoconf", "2.69").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/autoconf/autoconf-#{recipe.version}.tar.gz"

	recipe.dependencies << "m4" << "perl"
end

recipes << Recipe.new(context, "libtool", "2.4.6").tap do |recipe|
	recipe.sources << "http://ftpmirror.gnu.org/libtool/libtool-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "m4", "1.4.18").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/m4/m4-#{recipe.version}.tar.gz"
	recipe.dependencies << "perl"
end

recipes << Recipe.new(context, "bzip2", "1.0.6").tap do |recipe|
	recipe.sources << "https://downloads.sourceforge.net/project/bzip2/bzip2-#{recipe.version}.tar.gz"

	recipe.instructions.configure << "sed -i.orig -e '/^CFLAGS=/s/.*/CFLAGS = -O2 -fPIC/' #{recipe.dirname}/Makefile"
	recipe.options["make install"] = "PREFIX='#{recipe.fake_root_directory}/usr'"
end

recipes << Recipe.new(context, "perl", "5.30.0").tap do |recipe|
	recipe.sources << "https://www.cpan.org/src/5.0/perl-#{recipe.version}.tar.gz"

	recipe.dependencies << "zlib" << "bzip2"

	recipe.instructions.build << %(
		set -e -x;
		cd #{recipe.dirname};
		BUILD_ZLIB=0;
		BUILD_BZIP2=0;
		BZIP2_LIB=/usr/lib;
		BZIP2_INCLUDE=/usr/inculde;

		export BUILD_ZLIB BUILD_BZIP2 BZIP2_LIB BZIP2_INCLUDE;
		./Configure -des \
			-Dcccdlflags='-fPIC' \
			-Dcccdlflags='-fPIC' \
			-Dccdlflags='-rdynamic' \
			-Dprefix=/usr \
			-Uprivlib=$_privlib \
			-Darchlib=$_archlib \
			-Dvendorprefix=/usr \
			-Dvendorlib=/usr/share/perl5/vendor_perl \
			-Dvendorarch=/usr/lib/perl5/vendor_perl \
			-Dsiteprefix=/usr/local \
			-Dsitelib=/usr/local/share/perl5/site_perl \
			-Dsitearch=/usr/local/lib/perl5/site_perl \
			-Dlocincpth=' ' \
			-Dcc=gcc \
			-Uoptimize="$CFLAGS" \
			-Duselargefiles \
			-Dusethreads \
			-Duseshrplib \
			-Dd_semctl_semun \
			-Dman1dir=/usr/share/man/man1 \
			-Dman3dir=/usr/share/man/man3 \
			-Dinstallman1dir=/usr/share/man/man1 \
			-Dinstallman3dir=/usr/share/man/man3 \
			-Dman1ext='1' \
			-Dman3ext='3pm' \
			-Dcf_by='Alpine' \
			-Ud_csh \
			-Dusenm \
		|| return 1
		make libperl.so && make || return 1
	)
end

recipes << Recipe.new(context, "apk-tools", "2.10.4").tap do |recipe|
	recipe.sources << "https://dev.alpinelinux.org/archive/apk-tools/apk-tools-#{recipe.version}.tar.xz"

	recipe.options["make"] = "LUAAPK= static"

	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/sbin'"
	recipe.instructions.install << "cp apk-tools-#{recipe.version}/src/apk.static '#{recipe.fake_root_directory}/sbin/apk'"

	[
		"/var/lib/apk",
		"/var/cache/misc",
		"/etc/apk/keys",
		"/etc/apk/protected_paths.d"
	].each do |dir|
		recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}#{dir}'"
	end

	#recipe.build_dependencies << "zlib-dev" << "openssl-dev" << "linux-dev"
end

recipes << Recipe.new(context, "abuild", "3.4.0").tap do |recipe|
	recipe.sources << "https://dev.alpinelinux.org/archive/abuild/abuild-#{recipe.version}.tar.xz"
end

recipes << Recipe.new(context, "pkg-config", "0.29.2").tap do |recipe|
	recipe.sources << "http://pkgconfig.freedesktop.org/releases/pkg-config-#{recipe.version}.tar.gz"

	# FIXME: We’ll want to remove this at some point.
	recipe.options["configure"] = "--with-internal-glib"
end

recipes << Recipe.new(context, "tar", "1.32").tap do |recipe|
	recipe.sources << "http://ftp.gnu.org/gnu/tar/tar-#{recipe.version}.tar.gz"
	recipe.options["configure"] = "FORCE_UNSAFE_CONFIGURE=1"
end

recipes << Recipe.new(context, "libarchive", "3.3.3").tap do |recipe|
	recipe.sources << "https://www.libarchive.org/downloads/libarchive-#{recipe.version}.tar.gz"

	# Conflicts with “tar” (gnu tar)
	#recipe.instructions.install << "cd #{recipe.dirname} && make DESTDIR='#{recipe.fake_root_directory}' install"
	#recipe.instructions.install << "cd '#{recipe.fake_root_directory}' && ln -s /usr/bin/bsdtar usr/bin/tar"
end

# FIXME: Build and install the actual kernel.
recipes << Recipe.new(context, "linux", "5.2.4").tap do |recipe|
	recipe.sources << "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-#{recipe.version}.tar.xz"

	recipe.instructions.build << "true"

	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/usr'"
	recipe.instructions.install << "cd '#{recipe.dirname}' && make headers_install ARCH=x86_64 INSTALL_HDR_PATH='#{recipe.fake_root_directory}/usr'"
end

recipes << Recipe.new(context, "make", "4.2").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/make/make-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "zlib", "1.2.11").tap do |recipe|
	recipe.sources << "https://www.zlib.net/zlib-#{recipe.version}.tar.gz"
end

# Be careful with that one. It’s not configured to use proper prefixes.
# (Not sure that it should though. It’s gotta put things in /sbin anyway.)
recipes << Recipe.new(context, "sysvinit", "2.95").tap do |recipe|
	recipe.sources << "https://git.savannah.nongnu.org/cgit/sysvinit.git/snapshot/sysvinit-#{recipe.version}.tar.gz"
	recipe.url = "https://savannah.nongnu.org/projects/sysvinit"
	recipe.description = "System V-like init system."
	recipe.dependencies << "util-linux"

	recipe.instructions.install << "cd sysvinit-#{recipe.version} && make ROOT='#{recipe.fake_root_directory}' install"
end

recipes << Recipe.new(context, "musl", "1.1.23").tap do |recipe|
	recipe.sources << "https://www.musl-libc.org/releases/musl-#{recipe.version}.tar.gz"
	recipe.url = "https://www.musl-libc.org/"
	recipe.description = "The musl c library (libc) implementation."
	recipe.options["configure"] = "--prefix=/usr --libdir=/lib --syslibdir=/lib --enable-shared --enable-static"
	# FIXME: We need to make a few symlinks (libm.so, libpthread.so, librt.so, libdl.so.)
	# FIXME: We should probably add a ldd script too.
end

recipes << Recipe.new(context, "libffi", "3.2.1").tap do |recipe|
	recipe.sources << "ftp://sourceware.org/pub/libffi/libffi-#{recipe.version}.tar.gz"

	recipe.instructions.install << %{
		set -e;
		cd #{recipe.dirname};
		make DESTDIR="#{recipe.fake_root_directory}" install;
		cd "#{recipe.fake_root_directory}";
		mv usr/lib/libffi-#{recipe.version}/include usr;
		nuke usr/lib/libffi-#{recipe.version}
	}
end

recipes << Recipe.new(context, "python", "3.7.4").tap do |recipe|
	recipe.sources << "https://www.python.org/ftp/python/#{recipe.version}/Python-#{recipe.version}.tgz"
	recipe.dirname = "Python-#{recipe.version}"
end

recipes << Recipe.new(context, "crystal", "0.29.9").tap do |recipe|
	# FIXME: Arrows, ASAP.
	#recipe.sources << "https://github.com/crystal-lang/crystal/archive/#{recipe.version}.tar.gz"

	recipe.dirname = "crystal-8b3dba72bd681118b2b761c68d7d2fdcbbbfceb2"
	recipe.sources << "https://github.com/crystal-lang/crystal/archive/8b3dba72bd681118b2b761c68d7d2fdcbbbfceb2.zip"

	recipe.dependencies << "libyaml" << "libevent" << "pcre" << "openssl"

	recipe.options["make"] = "release=1 LLVM_CONFIG=/usr/bad/llvm-6/bin/llvm-config"
	recipe.instructions.install << %{
		set -e
		cd #{recipe.dirname};
		PKG="#{recipe.fake_root_directory}";
		mkdir -p "$PKG/usr/bin";
		mkdir -p "$PKG/usr/lib/crystal/core";
		mkdir -p "$PKG/usr/share/man/man1";

		install -D -m 755 .build/crystal "$PKG"/usr/bin/crystal;
		install -D -m 644 man/crystal.1 "$PKG"/usr/share/man/man1/crystal.1;
		cp -r src/* "$PKG/usr/lib/crystal/core";
		cd "$PKG/usr/lib/crystal/core";
		nuke ext/sigfault.* llvm/ext/llvm_ext.o
	}
end

[{"6", "6.0.1"}, {"7", "7.1.0"},{"8", "8.0.0"}].each do |branch, version|
	recipes << Recipe.new(context, "llvm-#{branch}", version).tap do |recipe|
		recipe.sources << "http://releases.llvm.org/#{recipe.version}/llvm-#{recipe.version}.src.tar.xz"
		recipe.url = "http://llvm.org"
		recipe.description = "The LLVM Project is a collection of modular and reusable compiler and toolchain technologies."

		recipe.dependencies << "libffi"

		# Build-deps.
		#recipe.build_dependencies << "cmake"
		#recipe.build_dependencies << "make"
		#recipe.build_dependencies << "libffi-dev"
		#recipe.build_dependencies << "musl-dev"

		recipe.instructions.configure << "mkdir #{recipe.name}-#{recipe.version}"
		# FIXME: BROKEN
		recipe.instructions.configure << <<-EOF
			cd #{recipe.name}-#{recipe.version} && \
			cmake ../llvm-#{recipe.version}.src \
				-DCMAKE_INSTALL_PREFIX=/usr/bad/llvm-#{branch} \
				-DLLVM_BUILD_DOCS=OFF \
				-DLLVM_BUILD_EXAMPLES=OFF \
				-DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON \
				-DLLVM_BUILD_LLVM_DYLIB=ON \
				-DLLVM_ENABLE_ASSERTIONS=OFF \
				-DLLVM_ENABLE_CXX1Y=ON \
				-DLLVM_ENABLE_FFI=ON \
				-DLLVM_ENABLE_LIBCXX=OFF \
				-DLLVM_ENABLE_PIC=ON \
				-DLLVM_ENABLE_RTTI=ON \
				-DLLVM_ENABLE_SPHINX=OFF \
				-DLLVM_ENABLE_TERMINFO=ON \
				-DLLVM_ENABLE_ZLIB=ON \
				-DLLVM_INCLUDE_EXAMPLES=OFF \
				-DLLVM_LINK_LLVM_DYLIB=ON \
				-DCMAKE_BUILD_TYPE=Release \
				-DCMAKE_CXX_FLAGS="-fPIC -O2" \
				-DCMAKE_C_FLAGS="-fPIC -O2"
EOF
		
		recipe.instructions.build << "pwd && ls && cd #{recipe.name}-#{recipe.version} && make"
		recipe.instructions.install << "cd #{recipe.name}-#{recipe.version} && make DESTDIR='#{recipe.fake_root_directory}' install"
	end
end

recipes << Recipe.new(context, "cmake", "3.15.1").tap do |recipe|
	recipe.sources << "https://github.com/Kitware/CMake/releases/download/v3.15.1/cmake-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "gmp", "6.1.2").tap do |recipe|
	recipe.sources << "https://gmplib.org/download/gmp/gmp-#{recipe.version}.tar.xz"
end

recipes << Recipe.new(context, "mpfr", "4.0.2").tap do |recipe|
	recipe.sources << "https://www.mpfr.org/mpfr-current/mpfr-#{recipe.version}.tar.xz"
end

recipes << Recipe.new(context, "mpc", "1.1.0").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/mpc/mpc-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "gcc", "9.1.0").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/gcc/gcc-9.1.0/gcc-#{recipe.version}.tar.xz"

	recipe.dependencies << "gmp" << "mpfr" << "mpc" << "binutils"

	recipe.dirname = "build"
	recipe.instructions.configure << %(
		set -e;
		mkdir build;
		cd build;
		sed -e '/m64=/s/lib64/lib/' \
			-i.orig ../gcc-#{recipe.version}/gcc/config/i386/t-linux64;
		../gcc-#{recipe.version}/configure \
			--prefix=/usr \
			--libdir=/usr/lib \
			--disable-multilib \
			--disable-libssp \
			--disable-libmpx \
			--disable-libmudflap \
			--disable-libsanitizer \
			--disable-nls \
			--disable-werror \
			--enable-languages=c,c++ \
			--target=x86_64-junk-linux-musl \
			--build=x86_64-junk-linux-musl \
			--host=x86_64-junk-linux-musl
	)
end

recipes << Recipe.new(context, "zsh", "5.7.1").tap do |recipe|
	recipe.sources << "https://downloads.sourceforge.net/project/zsh/zsh/#{recipe.version}/zsh-#{recipe.version}.tar.xz"
	recipe.url = "https://zsh.org"
	recipe.description = "Zsh is a shell designed for interactive use, although it is also a powerful scripting language."
	recipe.dependencies << "ncurses"
	recipe.options["configure"] = "--with-tcsetpgrp"

	# Build-deps.
	#recipe.build_dependencies << "ncurses-dev"
end

recipes << Recipe.new(context, "ncurses", "6.1").tap do |recipe|
	recipe.sources << "ftp://ftp.invisible-island.net/ncurses/ncurses-#{recipe.version}.tar.gz"
	recipe.url = "https://www.gnu.org/software/ncurses/"
	recipe.options["configure"] = "--enable-widec --without-ada --with-shared --enable-pc-files --disable-termcap"

	recipe.instructions.install << "cd ncurses-#{recipe.version} && make 'DESTDIR=#{recipe.fake_root_directory}' install"

	# Already provided bu busybox.
	recipe.instructions.install << "cd '#{recipe.fake_root_directory}' && rm usr/bin/clear usr/bin/reset"
end

recipes << Recipe.new(context, "busybox", "1.31.0").tap do |recipe|
	recipe.sources << "https://busybox.net/downloads/busybox-#{recipe.version}.tar.bz2"

	recipe.instructions.configure << "cd busybox-#{recipe.version} && make defconfig"
	recipe.instructions.configure << "sed -i -e 's/.*CONFIG_STATIC.*/CONFIG_STATIC=y/' busybox-#{recipe.version}/.config"
	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/bin'"
	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/sbin'"
	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/usr/bin'"
	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/usr/sbin'"
	recipe.instructions.install << "cp busybox-#{recipe.version}/busybox '#{recipe.fake_root_directory}/bin/busybox'"
	recipe.instructions.install << "chroot '#{recipe.fake_root_directory}' /bin/busybox --install -s"

	#recipe.build_dependencies << "linux-dev"
end

recipes << Recipe.new(context, "rc", "0.0.1").tap do |recipe|
	recipe.sources << "https://git.karchnu.fr/JunkOS/rc/archive/579e431144e33b2510260b1bce5505fd328d2961.tar.gz"

	# Those two are required due to a lack of robustness in our current backends.
	recipe.instructions.configure << "true"
	recipe.instructions.build << "true"
	
	recipe.instructions.install << "mkdir -p '#{recipe.fake_root_directory}/etc'"
	recipe.instructions.install << "cp rc/* '#{recipe.fake_root_directory}/etc/'"
end

recipes << Recipe.new(context, "libyaml", "0.2.2").tap do |recipe|
	recipe.sources << "https://github.com/yaml/libyaml/archive/#{recipe.version}.tar.gz"

	recipe.instructions.configure << "cd libyaml-#{recipe.version} && ./bootstrap && ./configure --prefix=/usr"

	# recipe.build_dependencies << "autoconf" << "libtool"
end

# FIXME: This one will fail on non-x86_64 platforms. Also on non-linux
#        platforms. This build script is total shit.
recipes << Recipe.new(context, "openssl", "1.1.1c").tap do |recipe|
	recipe.sources << "https://www.openssl.org/source/openssl-#{recipe.version}.tar.gz"

	recipe.instructions.configure << "cd openssl-#{recipe.version} && ./Configure --prefix=/usr linux-x86_64"
end

recipes << Recipe.new(context, "libevent", "2.1.10").tap do |recipe|
	recipe.sources << "https://github.com/libevent/libevent/releases/download/release-#{recipe.version}-stable/libevent-#{recipe.version}-stable.tar.gz"

	recipe.dirname = "libevent-#{recipe.version}-stable"
end

recipes << Recipe.new(context, "pcre2", "10.33").tap do |recipe|
	recipe.sources << "ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre2-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "pcre", "8.43").tap do |recipe|
	recipe.sources << "ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-#{recipe.version}.tar.gz"

	recipe.options["configure"] = %( \
		--enable-utf8 \
		--enable-unicode-properties \
		--enable-pcre8 \
		--enable-pcre16 \
		--enable-pcre32 \
		--with-match-limit-recursion=8192
	)
end

recipes << Recipe.new(context, "binutils", "2.32").tap do |recipe|
	recipe.sources << "https://ftp.gnu.org/gnu/binutils/binutils-#{recipe.version}.tar.xz"

	recipe.options["configure"] = %( \
		--disable-multilib \
		--with-pic --disable-nls
	)
	recipe.options["make"] = "tooldir=/usr"
	recipe.instructions.install << "cd #{recipe.dirname} && make 'DESTDIR=#{recipe.fake_root_directory}' tooldir=/usr install && rm '#{recipe.fake_root_directory}/usr/bin/strings'"
end

recipes << Recipe.new(context, "readline", "8.0").tap do |recipe|
	recipe.sources << "ftp://ftp.gnu.org/gnu/readline/readline-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "gc", "8.0.4").tap do |recipe|
	recipe.sources << "https://github.com/ivmai/bdwgc/releases/download/v#{recipe.version}/gc-#{recipe.version}.tar.gz"
end

recipes << Recipe.new(context, "clang", "8.0.1").tap do |recipe|
	recipe.sources << "https://github.com/llvm/llvm-project/releases/download/llvmorg-#{recipe.version}/cfe-#{recipe.version}.src.tar.xz"
	recipe.dirname = "build"

	recipe.instructions.configure << "mkdir build && cd build && cmake ../cfe-#{recipe.version}.src -DCMAKE_PREFIX_PATH=/usr/bad/llvm-8 -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release"
end

recipes << Recipe.new(context, "service", "0.0.1").tap do |recipe|
	recipe.sources << "" # FIXME
end

if ARGV.size == 0 || ARGV[0]? == "-h"
	pp recipes.map &.name
	exit 0
end

selected_recipes = ARGV.map do |name|
	recipes.find(&.name.==(name)) || name
end

if selected_recipes.any? &.is_a?(String)
		puts "At least one of the requested recipes is not known."

		selected_recipes.select! &.is_a?(String)
		pp! selected_recipes
	end

	# Getting rid of Strings.
	selected_recipes = selected_recipes.compact_map do |recipe|
		if recipe.is_a? String
			nil
		else
			recipe
		end
	end

	selected_recipes.each do |recipe|
		pp recipe

		raise "oh no, download failed" unless recipe.download
		raise "oh no, extraction failed" unless recipe.extract

		raise "oh no, build failed" unless recipe.build
		raise "oh no, packaging failed" unless recipe.package

		recipe.clean
	end