# SPDX-License-Identifier: CC0-1.0

# Copyright (C) 2022 Wojtek Kosior <koszko@koszko.org>
#
# Available under the terms of Creative Commons Zero v1.0 Universal.

GUIX := guix

# Almost all commands in this Makefilo are run through `guix time-machine` with
# Guix revision fixed to the one from the commit below. This ensures that the
# same working environment is always used.
GUIX_COMMIT := a86979b41a49a8fcdaa887970ba594dbba701226

GUIX_TM = $(GUIX) time-machine --commit=$(GUIX_COMMIT) --

GUIX_PACKAGE_SELECTION_FLAGS = -f guix.scm

GUIX_DEVSHELL = $(GUIX_TM) shell -D $(GUIX_PACKAGE_SELECTION_FLAGS) --

GET_VER = $$(grep '^Version:' src/hydrilla.egg-info/PKG-INFO | cut -d' ' -f2)
RECORD_VER = VER="$(GET_VER)"

DETERMINISTIC_TAR = $(GUIX_TM) shell tar -- tar                             \
	--mtime='1970-01-01 00:00Z'                                         \
	--sort=name                                                         \
	--owner=0 --group=0 --numeric-owner                                 \
	--pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime

DETERMINE_USER_SHELL_TO_USE =                    \
	case "$$SHELL" in                        \
		?*)                              \
			SHELL_TO_USE="$$SHELL";; \
		*)                               \
			SHELL_TO_USE="/bin/sh";; \
	esac

wheel:
	$(GUIX_DEVSHELL) python3 -m build

# Make a source tarball and repack in a deterministic way so that its
# reproducible.
dist src/hydrilla/_version.py:
	$(GUIX_DEVSHELL) python3 -m build -s
	$(RECORD_VER) &&                                           \
		RELNAME=hydrilla-"$$VER" &&                        \
		DISTFILE=dist/"$$RELNAME".tar.gz &&                \
		$(MAKE) clean-source-tarball-repack &&             \
		mkdir source-tarball-repack/ &&                    \
		tar -C source-tarball-repack/ -xf "$$DISTFILE" &&  \
		$(DETERMINISTIC_TAR) -C source-tarball-repack/     \
			-cf "$$DISTFILE" "$$RELNAME"
	@printf "Generated source tarball in:\n"
	@printf "./dist/hydrilla-$(GET_VER).tar.gz\n"

doc:
	$(MAKE) clean-doc
	$(GUIX_DEVSHELL) python3 setup.py build_htmldoc

# Make a release tarball and repack its files as writeable - this will make it
# easier for non-technical users to remove the unpacked release once they no
# longer need it.
release: dist doc
	$(GUIX_TM) pack -L ./guix-module-dir -RR hydrilla        \
		-S /hydrilla=bin/hydrilla                        \
		-S /hydrilla-builder=bin/hydrilla-builder        \
		-S /hydrilla-server=bin/hydrilla-server          \
		-S /haketilo=bin/haketilo | tee make-release.log
	$(RECORD_VER) &&                                                   \
		RELNAME=haketilo-and-hydrilla-bin-"$$VER"-"$$(arch)" &&    \
		PACKFILE="$$(tail -1 make-release.log)" &&                 \
		$(MAKE) clean-bin-tarball-repack &&                        \
		mkdir bin-tarball-repack/ &&                               \
		mkdir bin-tarball-repack/"$$RELNAME" &&                    \
		tar -C bin-tarball-repack/"$$RELNAME"/ -xf "$$PACKFILE" && \
		chmod -R +w bin-tarball-repack/"$$RELNAME" &&              \
		cp -R htmldoc/ bin-tarball-repack/"$$RELNAME" &&           \
		$(DETERMINISTIC_TAR) -C bin-tarball-repack/                \
			-cf "$$RELNAME".tar.gz "$$RELNAME"
	@printf "Generated binary release tarball for $$(arch) in:\n"
	@printf "./haketilo-and-hydrilla-bin-$(GET_VER)-$$(arch).tar.gz\n"

# If using bash, modify the prompt to indicate that the environment is active.
shell:
	$(DETERMINE_USER_SHELL_TO_USE);	                            \
	case "$$SHELL_TO_USE" in                                    \
		*bash*)                                             \
			HYDRILLA_SHELL_NAME=hydrilla-dev            \
				$(GUIX_DEVSHELL) "$$SHELL_TO_USE"   \
				--rcfile ./bashrc || true;;         \
		*)                                                  \
			$(GUIX_DEVSHELL) "$$SHELL_TO_USE" || true;; \
	esac

# Modify prompt for bash, like above.
shell-with-haketilo: dist
	$(DETERMINE_USER_SHELL_TO_USE);	                                     \
	case "$$SHELL_TO_USE" in                                             \
		*bash*)                                                      \
			HYDRILLA_SHELL_NAME=hydrilla                         \
				$(GUIX_TM) shell                             \
				--rebuild-cache                              \
				$(GUIX_PACKAGE_SELECTION_FLAGS) --           \
				"$$SHELL_TO_USE" --rcfile ./bashrc || true;; \
		*)                                                           \
			$(GUIX_TM) shell --rebuild-cache                     \
				$(GUIX_PACKAGE_SELECTION_FLAGS) --           \
				|| true;;                                    \
	esac

.PHONY:
shell-with-hydrilla-only:
	$(MAKE) shell-with-haketilo \
		GUIX_PACKAGE_SELECTION_FLAGS="-e '(@ (hydrilla-base) hydrilla-without-haketilo)' -L ./guix-module-dir"

catalogs:
	$(GUIX_DEVSHELL) python3 setup.py compile_catalog

refresh-catalogs:
	$(GUIX_DEVSHELL) sh -c \
		"python3 setup.py extract_messages && python3 setup.py update_catalog && python3 setup.py compile_catalog"

test: src/hydrilla/_version.py catalogs
	$(GUIX_DEVSHELL) pytest

run-haketilo: src/hydrilla/_version.py catalogs
	PYTHONPATH=./src $(GUIX_DEVSHELL) python3 -m hydrilla.mitmproxy_launcher

reuse-lint:
	$(GUIX_DEVSHELL) reuse lint

mypy-lint: src/hydrilla/_version.py
	PYTHONPATH=./src/ $(GUIX_DEVSHELL) mypy -p hydrilla

mypy-lint-server: src/hydrilla/_version.py
	$(GUIX_DEVSHELL) mypy src/hydrilla/server/__main__.py

mypy-lint-builder: src/hydrilla/_version.py
	$(GUIX_DEVSHELL) mypy src/hydrilla/builder/__main__.py

mypy-lint-haketilo: src/hydrilla/_version.py
	$(GUIX_DEVSHELL) mypy \
		src/hydrilla/proxy/addon.py \
		src/hydrilla/mitmproxy_launcher/__main__.py

clean-bin-tarball-repack:
	test -d bin-tarball-repack/ && chmod -R +w bin-tarball-repack/ || true
	rm -rf bin-tarball-repack/

clean-source-tarball-repack:
	rm -rf source-tarball-repack/

clean-doc:
	rm -rf htmldoc/

clean: clean-bin-tarball-repack clean-source-tarball-repack clean-doc
	rm -rf build/ dist/ src/hydrilla.egg-info/ src/hydrilla/_version.py    \
		src/hydrilla/locales/messages.pot make-release.log             \
		haketilo-and-hydrilla-bin-*.tar.gz .mypy_cache/ .pytest_cache/
	find src/hydrilla/locales/ -name "messages.mo" -delete
	rm -rf $$(find -name "__pycache__")

.PHONY: shell shell-with-haketilo                                       \
	wheel dist doc release catalogs                                 \
	refresh-catalogs test run-haketilo                              \
	reuse-lint                                                      \
	mypy-lint mypy-lint-server mypy-lint-builder mypy-lint-haketilo \
	clean-bin-tarball-repack clean-source-tarball-repack clean-doc  \
	clean