# terraria-server-manager
#
#   make check                 syntax-check the scripts (and shellcheck, if installed)
#   make deb                   build build/terraria-server-manager_<version>_all.deb
#   sudo make install          install directly (default PREFIX=/usr/local), no package
#   sudo make uninstall        remove what 'make install' installed (keeps your data)
#   make clean                 remove build/

NAME        := terraria-server-manager
VERSION     := $(shell cat VERSION)

PREFIX      ?= /usr/local
SYSCONFDIR  ?= /etc
BINDIR      := $(PREFIX)/bin
UNITDIR     := $(PREFIX)/lib/systemd/system
SYSUSERSDIR := $(PREFIX)/lib/sysusers.d
TMPFILESDIR := $(PREFIX)/lib/tmpfiles.d
DOCDIR      := $(PREFIX)/share/doc/$(NAME)
DATADIR     := $(PREFIX)/share/$(NAME)
PKGLIBDIR   := $(PREFIX)/lib/$(NAME)
COMPLETIONDIR := $(PREFIX)/share/bash-completion/completions
# polkit only reads /usr/share/polkit-1/rules.d and /etc/polkit-1/rules.d
ifeq ($(PREFIX),/usr)
POLKITDIR   ?= /usr/share/polkit-1/rules.d
else
POLKITDIR   ?= $(SYSCONFDIR)/polkit-1/rules.d
endif

# Fill in version and install paths
SUBST = sed -e 's|@VERSION@|$(VERSION)|g' -e 's|@BINDIR@|$(BINDIR)|g' -e 's|@DOCDIR@|$(DOCDIR)|g' \
	-e 's|@PKGLIBDIR@|$(PKGLIBDIR)|g'

MAINT_SCRIPTS := packaging/deb/postinst packaging/deb/prerm packaging/deb/postrm
STAGE         := build/deb-root
DEB           := build/$(NAME)_$(VERSION)_all.deb

.PHONY: all check install uninstall deb clean

all: check

check:
	bash -n bin/terractl
	bash -n completions/bash/terractl
	for f in $(MAINT_SCRIPTS); do sh -n $$f; done
	python3 -c 'import ast, sys; ast.parse(open(sys.argv[1]).read(), sys.argv[1])' lib/terractl-remote
	@if command -v shellcheck >/dev/null; then \
		shellcheck bin/terractl completions/bash/terractl $(MAINT_SCRIPTS); \
	else \
		echo "shellcheck not installed; skipped (apt install shellcheck)"; \
	fi
	@if python3 -m pyflakes --version >/dev/null 2>&1; then \
		python3 -m pyflakes lib/terractl-remote; \
	else \
		echo "pyflakes not installed; skipped (apt install python3-pyflakes)"; \
	fi

install:
	install -d $(DESTDIR)$(BINDIR) $(DESTDIR)$(UNITDIR) $(DESTDIR)$(SYSUSERSDIR) \
		$(DESTDIR)$(TMPFILESDIR) $(DESTDIR)$(DOCDIR) $(DESTDIR)$(DATADIR) $(DESTDIR)$(PKGLIBDIR) \
		$(DESTDIR)$(COMPLETIONDIR) $(DESTDIR)$(SYSCONFDIR)/default $(DESTDIR)$(SYSCONFDIR)/systemd \
		$(DESTDIR)$(POLKITDIR)
	$(SUBST) bin/terractl > $(DESTDIR)$(BINDIR)/terractl
	chmod 755 $(DESTDIR)$(BINDIR)/terractl
	install -m 755 lib/terractl-remote $(DESTDIR)$(PKGLIBDIR)/terractl-remote
	$(SUBST) systemd/terraria@.service > $(DESTDIR)$(UNITDIR)/terraria@.service
	$(SUBST) systemd/terractld.service > $(DESTDIR)$(UNITDIR)/terractld.service
	chmod 644 $(DESTDIR)$(UNITDIR)/terraria@.service $(DESTDIR)$(UNITDIR)/terractld.service
	install -m 644 systemd/terraria@.socket $(DESTDIR)$(UNITDIR)/
	install -m 644 config/sysusers.d/terractl.conf $(DESTDIR)$(SYSUSERSDIR)/
	install -m 644 config/tmpfiles.d/terractl.conf $(DESTDIR)$(TMPFILESDIR)/
	install -m 644 config/polkit/terractl.rules $(DESTDIR)$(POLKITDIR)/50-terractl.rules
	install -m 644 docs/guide.md $(DESTDIR)$(DOCDIR)/README.md
	install -m 644 tools/windows/export-tmod-mods.ps1 $(DESTDIR)$(DATADIR)/
	install -m 644 completions/bash/terractl $(DESTDIR)$(COMPLETIONDIR)/terractl
	@# Never overwrite local settings
	@if [ -e $(DESTDIR)$(SYSCONFDIR)/default/terractl ]; then \
		echo "keeping existing $(DESTDIR)$(SYSCONFDIR)/default/terractl"; \
	else \
		install -m 644 config/default/terractl $(DESTDIR)$(SYSCONFDIR)/default/terractl; \
	fi
	@if [ -e $(DESTDIR)$(SYSCONFDIR)/systemd/journald@terraria.conf ]; then \
		echo "keeping existing $(DESTDIR)$(SYSCONFDIR)/systemd/journald@terraria.conf"; \
	else \
		install -m 644 config/journald/journald@terraria.conf $(DESTDIR)$(SYSCONFDIR)/systemd/journald@terraria.conf; \
	fi
	@# On a real install (not staging for a package), set up the user and directories
	@if [ -z "$(DESTDIR)" ]; then \
		systemd-sysusers terractl.conf && \
		systemd-tmpfiles --create terractl.conf && \
		if [ -d /run/systemd/system ]; then \
			systemctl daemon-reload && systemctl try-restart terractld.service; \
		fi && \
		$(BINDIR)/terractl journal-access && \
		echo "Installed terractl $(VERSION). See $(DOCDIR)/README.md"; \
	fi

uninstall:
	@if [ -z "$(DESTDIR)" ] && [ -d /run/systemd/system ]; then \
		systemctl disable --now terractld.service 2>/dev/null || true; \
	fi
	rm -f $(DESTDIR)$(BINDIR)/terractl \
		$(DESTDIR)$(UNITDIR)/terraria@.service $(DESTDIR)$(UNITDIR)/terraria@.socket \
		$(DESTDIR)$(UNITDIR)/terractld.service \
		$(DESTDIR)$(SYSUSERSDIR)/terractl.conf $(DESTDIR)$(TMPFILESDIR)/terractl.conf \
		$(DESTDIR)$(COMPLETIONDIR)/terractl $(DESTDIR)$(POLKITDIR)/50-terractl.rules
	rm -rf $(DESTDIR)$(DOCDIR) $(DESTDIR)$(DATADIR) $(DESTDIR)$(PKGLIBDIR)
	@if [ -z "$(DESTDIR)" ] && [ -d /run/systemd/system ]; then systemctl daemon-reload; fi
	@echo "Removed. Kept: $(SYSCONFDIR)/default/terractl, $(SYSCONFDIR)/systemd/journald@terraria.conf,"
	@echo "/var/lib/terraria, /var/lib/terractl (the daemon's certificate and trusted"
	@echo "computers), the servers' journal and the terraria user."

deb: check
	rm -rf $(STAGE)
	$(MAKE) --no-print-directory install DESTDIR=$(CURDIR)/$(STAGE) PREFIX=/usr
	install -d -m 755 $(STAGE)/DEBIAN
	install -m 644 packaging/deb/conffiles $(STAGE)/DEBIAN/
	install -m 755 $(MAINT_SCRIPTS) $(STAGE)/DEBIAN/
	sed -e 's|@VERSION@|$(VERSION)|' \
	    -e "s|@INSTALLED_SIZE@|$$(du -sk --exclude=DEBIAN $(STAGE) | cut -f1)|" \
	    packaging/deb/control > $(STAGE)/DEBIAN/control
	find $(STAGE) -type d -exec chmod 755 {} +
	dpkg-deb --build --root-owner-group $(STAGE) $(DEB)

clean:
	rm -rf build