# Copyright (C) 2023-2024  Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later

# Entrypoint/config ############################################################

SHELL = bash -euE -o pipefail
osi-tools = $(CURDIR)/osi-tools
PATH := $(osi-tools)/bin:$(PATH)

all: $(patsubst %.sh,%.rootfs.img,$(wildcard images/*.sh))
.PHONY: all

.SECONDARY:
.DELETE_ON_ERROR:

MAKEFLAGS += --no-builtin-rules

# Nothing here is parallel-unsafe, but it just makes the output (and
# especially `sudo` prompts) hard to read.
.NOTPARALLEL:

define NL


endef

# Dependency magic #############################################################

# Files that modules depend on

build-deps/modules/umorpha-bootstrap.sh  = bin/umorpha-install
build-deps/modules/umorpha-bootstrap.sh += bin/umorpha-mount

secret-deps/modules/service-gitea.sh  = secrets/gitea-infomaniak-clientid.txt
secret-deps/modules/service-gitea.sh += secrets/gitea-infomaniak-clientsecret.txt

build-deps/modules/service-bookstack.sh  = modules/0001-Oidc-Properly-query-the-UserInfo-Endpoint.patch
secret-deps/modules/service-bookstack.sh  = secrets/bookstack-app-key.txt
secret-deps/modules/service-bookstack.sh += secrets/bookstack-infomaniak-mailaddr.txt
secret-deps/modules/service-bookstack.sh += secrets/bookstack-infomaniak-mailpassword.txt
secret-deps/modules/service-bookstack.sh += secrets/bookstack-infomaniak-clientid.txt
secret-deps/modules/service-bookstack.sh += secrets/bookstack-infomaniak-clientsecret.txt

secret-deps/modules/base-eclipse-creds.sh  = secrets/eclipse-sshkey.priv

# Group that should own the secret

group/gitea-infomaniak-clientid.txt     = gitea
group/gitea-infomaniak-clientsecret.txt = gitea

group/bookstack-app-key.txt                 = bookstack
group/bookstack-infomaniak-mailaddr.txt     = bookstack
group/bookstack-infomaniak-mailpassword.txt = bookstack
group/bookstack-infomaniak-clientid.txt     = bookstack
group/bookstack-infomaniak-clientsecret.txt = bookstack

group/eclipse-sshkey.priv = eclipse

# Automatic dependencies
pkg/%/.SRCINFO: pkg/%/PKGBUILD
	cd $(<D) && makepkg --printsrcinfo >.SRCINFO
deps.mk: images  $(filter-out %.secrets.sh,$(wildcard images/*.sh))
deps.mk: modules $(wildcard modules/*.sh)
deps.mk: pkg $(patsubst %/PKGBUILD,%/.SRCINFO,$(wildcard pkg/*/PKGBUILD))
deps.mk: bin/pkgbuild-deps Makefile
	{ \
	  echo '# variables: module -> module'; \
	  grep -H load_module modules/*.sh|sed -E 's,(.*):.*/(.*)"$$,build-deps/\1 += modules/\2 $$(build-deps/modules/\2),'; \
	  echo '# variables: image -> module'; \
	  grep -H -o -e '--module=\S*' -- images/*.sh | sed -E 's,images/([^:]*).sh:--module=(.*),build-deps/images/\1.rootfs.img += \2 $$(build-deps/\2),'; \
	  echo '# concrete: image -> build-deps'; \
	  $(foreach f,$(patsubst %.sh,%.rootfs.img,$(filter images/%.sh,$^)),echo '$f: $$(build-deps/$f)'; \$(NL) ) \
	  echo '# concrete: secrets -> secret-deps'; \
	  $(foreach f,$(patsubst %.sh,%.rootfs.img,$(filter images/%.sh,$^)),echo '$(patsubst %.rootfs.img,%.secrets.sh,$f): $$(foreach d,$$(build-deps/$f),$$(secret-deps/$$d))'; \$(NL) ) \
	  echo '# concrete: image -> package'; \
	  grep -H -o -e '--package-file=\S*' -- images/*.sh | sed -E 's,images/([^:]*).sh:--package-file=(.*),images/\1.rootfs.img: \2,'; \
	  echo '# concrete: packages'; \
	  $(foreach srcinfo,$(filter %/.SRCINFO,$^),bin/pkgbuild-deps $(srcinfo); \$(NL) ) \
	} >$@
-include deps.mk

# Generic pattern rules ########################################################

images/%.rootfs.img: images/%.sh $(osi-tools)/bin/osi-mk
	rm -f $@
	$< $@
	chmod 444 $@

images/%.gpt.img: images/%.rootfs.img bin/umorpha-install
	rm -f $@
	truncate --size=3G $@
	sudo bin/umorpha-install images/$*.rootfs.img $@

images/%.bootstrap.iso: images/%.rootfs.img images/bootstrap.rootfs.img bin/mkbootstrapiso
	bin/mkbootstrapiso $< $@

images/%.secrets.sh: Makefile deps.mk
	{ \
	  echo '#!/bin/sh'; \
	  echo 'install -m755 -d /etc/umorpha-secrets'; \
	  $(foreach f,$(sort $(filter secrets/%,$^)),val=$$(cat $f); echo "install -m640 --group=$(group/$(notdir $f)) /dev/stdin /etc/umorpha-secrets/$(notdir $f) <<<$${val@Q}"; \$(NL) ) \
	} >$@

qemu-bios  = qemu-system-x86_64
qemu-bios += -accel kvm
qemu-bios += -m 2G
qemu-bios += -net user,hostfwd=tcp::8022-:22,hostfwd=tcp::8080-:80 -net nic

qemu-uefi  = $(qemu-bios) -drive if=pflash,format=raw,readonly=on,file=/usr/share/ovmf/x64/OVMF.fd

run-bios/%.img: images/%.img
	cp --reflink -- $< $<.tmp
	chmod 644 $<.tmp
	$(qemu-bios) -drive media=disk,if=virtio,format=raw,file=$<.tmp
run-bios/%.iso: images/%.iso
	truncate --size=3G $<.tmp
	$(qemu-bios) -drive media=disk,if=virtio,format=raw,file=$<.tmp -cdrom $<
.PHONY: run-bios/%

run-uefi/%.img: images/%.img
	cp --reflink -- $< $<.tmp
	chmod 644 $<.tmp
	$(qemu-uefi) -drive media=disk,if=virtio,format=raw,file=$<.tmp
.PHONY: run-ueif/%

deploy/%: images/%.bootstrap.iso images/%.secrets.sh vultr/%.sh
	vultr/$*.sh
.PHONY: deploy/%

# Specific rules ###############################################################

osi-tools/bin/osi-mk:
	git submodule update --init $(@D)