# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

DB_VER="4.8"
inherit autotools bash-completion-r1 db-use desktop xdg-utils

BITCOINCORE_COMMITHASH="194b9b8792d9b0798fdb570b79fa51f1d1f5ebaf"
KNOTS_PV="${PV}.knots20210629"
KNOTS_P="bitcoin-${KNOTS_PV}"

DESCRIPTION="An end-user Qt GUI for the Bitcoin crypto-currency"
HOMEPAGE="https://bitcoincore.org/ https://bitcoinknots.org/"
SRC_URI="
	https://github.com/bitcoin/bitcoin/archive/${BITCOINCORE_COMMITHASH}.tar.gz -> bitcoin-v${PV}.tar.gz
	https://bitcoinknots.org/files/0.21.x/${KNOTS_PV}/${KNOTS_P}.patches.txz -> ${KNOTS_P}.patches.tar.xz
"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux"

IUSE="+asm +berkdb dbus kde knots +qrcode sqlite +system-leveldb test upnp +wallet zeromq"
RESTRICT="!test? ( test )"

REQUIRED_USE="
	sqlite? ( wallet )
	berkdb? ( wallet )
	wallet? ( || ( berkdb sqlite ) )
"
RDEPEND="
	>=dev-libs/boost-1.58.0:=[threads(+)]
	>dev-libs/libsecp256k1-0.1_pre20200911:=[recovery,schnorr]
	>=dev-libs/univalue-1.0.4:=
	dev-qt/qtcore:5
	dev-qt/qtgui:5
	dev-qt/qtnetwork:5
	dev-qt/qtwidgets:5
	system-leveldb? ( virtual/bitcoin-leveldb )
	dbus? ( dev-qt/qtdbus:5 )
	dev-libs/libevent:=
	qrcode? (
		media-gfx/qrencode:=
	)
	sqlite? ( >=dev-db/sqlite-3.7.17:= )
	upnp? ( >=net-libs/miniupnpc-1.9.20150916:= )
	berkdb? ( sys-libs/db:$(db_ver_to_slot "${DB_VER}")=[cxx] )
	zeromq? ( net-libs/zeromq:= )
"
DEPEND="${RDEPEND}"
BDEPEND="
	>=sys-devel/autoconf-2.69
	>=sys-devel/automake-1.13
	dev-qt/linguist-tools:5
	knots? (
		gnome-base/librsvg
		media-gfx/imagemagick[png]
	)
"

DOCS=(
	doc/bips.md
	doc/bitcoin-conf.md
	doc/descriptors.md
	doc/files.md
	doc/JSON-RPC-interface.md
	doc/psbt.md
	doc/reduce-traffic.md
	doc/release-notes.md
	doc/REST-interface.md
	doc/tor.md
)

S="${WORKDIR}/bitcoin-${BITCOINCORE_COMMITHASH}"

pkg_pretend() {
	if use knots; then
		elog "You are building ${PN} from Bitcoin Knots."
		elog "For more information, see:"
		elog "https://bitcoinknots.org/files/0.21.x/${KNOTS_PV}/${KNOTS_P}.desc.html"
	else
		elog "You are building ${PN} from Bitcoin Core."
		elog "For more information, see:"
		elog "https://bitcoincore.org/en/2021/05/01/release-${PV}/"
	fi
	elog
	elog "Replace By Fee policy is now always enabled by default: Your node will"
	elog "preferentially mine and relay transactions paying the highest fee, regardless"
	elog "of receive order. To disable RBF, set mempoolreplacement=never in bitcoin.conf"
	if has_version "<${CATEGORY}/${PN}-0.21.1" ; then
		ewarn "CAUTION: BITCOIN PROTOCOL CHANGE INCLUDED"
		ewarn "This release adds enforcement of the Taproot protocol change to the Bitcoin"
		ewarn "rules, beginning in November. Protocol changes require user consent to be"
		ewarn "effective, and if enforced inconsistently within the community may compromise"
		ewarn "your security or others! If you do not know what you are doing, learn more"
		ewarn "before November. (You must make a decision either way - simply not upgrading"
		ewarn "is insecure in all scenarios.)"
		ewarn "To learn more, see https://bitcointaproot.cc"
	fi
}

src_prepare() {
	sed -i 's/^\(complete -F _bitcoind \)bitcoind \(bitcoin-qt\)$/\1\2/' contrib/bitcoind.bash-completion || die

	# Save the generic icon for later
	cp src/qt/res/src/bitcoin.svg bitcoin128.svg || die

	local knots_patchdir="${WORKDIR}/${KNOTS_P}.patches/"

	eapply "${knots_patchdir}/${KNOTS_P}.syslibs.patch"

	if use knots; then
		eapply "${knots_patchdir}/${KNOTS_P}.f.patch"
		eapply "${knots_patchdir}/${KNOTS_P}.branding.patch"
		eapply "${knots_patchdir}/${KNOTS_P}.ts.patch"
	fi

	eapply "${FILESDIR}/${PN}-0.20.1-boost-1.77-compat.patch"

	eapply_user

	echo '#!/bin/true' >share/genbuild.sh || die
	mkdir -p src/obj || die
	echo "#define BUILD_SUFFIX gentoo${PVR#${PV}}" >src/obj/build.h || die

	eautoreconf
	rm -r src/secp256k1 || die
	if use system-leveldb; then
		rm -r src/leveldb || die
	fi
}

src_configure() {
	local my_econf=(
		$(use_enable asm)
		$(use_with dbus qtdbus)
		$(use_with qrcode qrencode)
		$(use_with upnp miniupnpc)
		$(use_enable upnp upnp-default)
		$(use_enable test tests)
		$(use_enable wallet)
		$(use_enable zeromq zmq)
		--with-gui=qt5
		--disable-util-cli
		--disable-util-tx
		--disable-util-wallet
		--disable-bench
		--without-libs
		--without-daemon
		--disable-fuzz
		--disable-ccache
		--disable-static
		$(use_with berkdb bdb)
		$(use_with sqlite)
		$(use_with system-leveldb)
		--with-system-libsecp256k1
		--with-system-univalue
	)
	econf "${my_econf[@]}"
}

src_install() {
	default

	if use test; then
		rm -f "${ED}/usr/bin/test_bitcoin" || die
	fi

	insinto /usr/share/icons/hicolor/scalable/apps/
	doins bitcoin128.svg
	if use knots; then
		newins src/qt/res/src/bitcoin.svg bitcoinknots.svg
	fi

	cp "${FILESDIR}/org.bitcoin.bitcoin-qt.desktop" "${T}" || die
	if ! use knots; then
		sed -i 's/Knots/Core/;s/^\(Icon=\).*$/\1bitcoin128/' "${T}/org.bitcoin.bitcoin-qt.desktop" || die
	fi
	domenu "${T}/org.bitcoin.bitcoin-qt.desktop"

	use zeromq && dodoc doc/zmq.md

	newbashcomp contrib/bitcoind.bash-completion ${PN}

	if use kde; then
		insinto /usr/share/kservices5
		doins "${FILESDIR}/bitcoin-qt.protocol"
		dosym "../../kservices5/bitcoin-qt.protocol" "/usr/share/kde4/services/bitcoin-qt.protocol"
	fi
}

update_caches() {
	xdg_icon_cache_update
	xdg_desktop_database_update
}

pkg_postinst() {
	update_caches

	elog "To have ${PN} automatically use Tor when it's running, be sure your"
	elog "'torrc' config file has 'ControlPort' and 'CookieAuthentication' setup"
	elog "correctly, and add your user to the 'tor' user group."
}

pkg_postrm() {
	update_caches
}