DESTDIR=
pfx=/usr/local
flavour=$(shell if stack --version >/dev/null 2>&1; then echo stack; elif cabal --version >/dev/null 2>&1; then echo cabal; else echo simple; fi)
parallel=$(filter -j%, $(MAKEFLAGS))

build: build-$(flavour)
install: install-$(flavour) install-common

build-stack:
	stack setup
	stack build

install-stack: build-stack
	install -d -m755 $(DESTDIR)$(pfx)/bin
	install -m755 $$(stack path --local-install-root)/bin/konsum $(DESTDIR)$(pfx)/bin/
	install -m755 $$(stack path --local-install-root)/bin/agitprop $(DESTDIR)$(pfx)/bin/

install-common:
	install -d -m755 $(DESTDIR)$(pfx)/lib/haskell-amqp-utils
	install -m755 callback $(DESTDIR)$(pfx)/lib/haskell-amqp-utils/
	install -m644 callback.config.sh $(DESTDIR)$(pfx)/lib/haskell-amqp-utils/

build-cabal:
	cabal update
	cabal install --only-dependencies --enable-tests $(CONSTRAINTS)
	cabal configure --enable-tests
	cabal build $(parallel)
	cabal test

install-cabal: build-cabal
	cabal install --prefix=$(DESTDIR)$(pfx)

build-simple: Setup
	./Setup configure --prefix=$(pfx)
	./Setup build $(parallel)

install-simple: build-simple
	./Setup copy --destdir=$(DESTDIR)

all:	$(subst .hs,,$(wildcard *.hs))

%:	%.hs
	ghc -Wall -threaded $<
	rm -f $@.hi $@.o

clean:
	rm -f *.hi *.o $(subst .hs,,$(wildcard *.hs))
	rm -rf dist

uninstall:
	rm -f $(DESTDIR)$(pfx)/lib/haskell-amqp-utils/callback
	rm -f $(DESTDIR)$(pfx)/lib/haskell-amqp-utils/callback.config.sh
	rm -f $(DESTDIR)$(pfx)/bin/konsum
	rm -f $(DESTDIR)$(pfx)/bin/agitprop
	-rmdir $(DESTDIR)$(pfx)/lib/haskell-amqp-utils