# app custom Makefile

SHELL         = /bin/sh
CFG           = .env

SOURCES      ?= $(wildcard *.sql)
OBJECTS       = $(SOURCES:.sql=.done)
OBJECTSDIRECT = $(SOURCES:.sql=.direct)

# ------------------------------------------------------------------------------
# app custom config
# comments prefixed with '#- ' will be copied to $(CFG).sample

#- Postgresql container name (access via docker)
PG_CONTAINER ?= dcape_db_1

#- PowerDNS DB user name
PGUSER       ?= pdns

#- PowerDNS DB name
PGDATABASE   ?= pdns

#- Used ONLY for direct DB access without docker (update-direct)
PGPASSWORD   ?=

#- ACME zone suffix
ACME_DOMAIN  ?=

#- This NS hostname for use in all SOA
NSERVER      ?=

# ------------------------------------------------------------------------------

all: help

-include $(CFG)
export

# ------------------------------------------------------------------------------
# dcape v1 comparibility

start-hook: update

stop:

# ------------------------------------------------------------------------------
## Usage
#:

## Load updated zone files via running PG container
update: $(OBJECTS)

%.done: %.sql
	@echo "*** $< ***"
	@csum=$$(md5sum $< | sed 's/ .*//') ; \
	  cat $< | docker exec -i $$PG_CONTAINER psql -U $$PGUSER -d $$PGDATABASE -vcsum=$$csum -vACME_DOMAIN=$(ACME_DOMAIN) -vNSERVER=$(NSERVER) > $@

## Load updated zone files via psql connection
update-direct: $(CFG) $(OBJECTSDIRECT)

%.direct: %.sql
	@echo "*** $< ***"
	@source $(CFG) && cat $< | PGPASSWORD=$$PGPASSWORD psql -h localhost -U $$PGUSER > $@

## Run psql via running PG container
psql:
	@docker exec -it $$PG_CONTAINER psql -U $$PGUSER $$PGDATABASE

# ------------------------------------------------------------------------------
## Other
#:

# This code generates $(CFG).sample from Makefile vars with previous comment line(s)
# See https://gist.github.com/LeKovr/2697fe02504d7c081b0bf79427c93db6

# Internal: generate config sample data
.env.temp.mk:
	@echo "define CFVAR" > $@
	@grep -A 1 -h "^#- " $(MAKEFILE_LIST) | grep -vE "^--" \
	  | sed -E 's/^([^\n ]+)\ *\??=([^\n]*)$$/\1=$$(\1)\n/ ; s/^(#)-/\1/' >> $@
	@echo "endef" >> $@

ifneq ($(findstring $(MAKECMDGOALS),config $(CFG).sample),)
include .env.temp.mk
endif

# Internal: generate config sample
$(CFG).sample: .env.temp.mk
	@echo "# dcape-dns config file, generated by 'make config'\n" > $@
	@echo "$$CFVAR" >> $@
	@rm -f $<

## generate sample config
config: $(CFG).sample

# ------------------------------------------------------------------------------

## Remove .done files
clean:
	rm -rf $(OBJECTS)

# This code handles group header and target comment with one or two lines only
## list Makefile targets
## (this is default target)
help:
	@grep -A 1 -h "^## " $(MAKEFILE_LIST) \
  | sed -E 's/^--$$// ; /./{H;$$!d} ; x ; s/^\n## ([^\n]+)\n(## (.+)\n)*(.+):(.*)$$/"    " "\4" "\1" "\3"/' \
  | sed -E 's/^"    " "#" "(.+)" "(.*)"$$/"" "" "" ""\n"\1 \2" "" "" ""/' \
  | xargs printf "%s\033[36m%-15s\033[0m %s %s\n"