GRAY     = "\e[0;30m"
RED      = "\e[0;31m"
GREEN    = "\e[0;32m"
YELLOW   = "\e[0;33m"
BLUE     = "\e[0;34m"
PURPLE   = "\e[0;35m"
CYAN     = "\e[0;36m"
WHITE    = "\e[0;37m"

B_GRAY   = "\e[1;30m"
B_RED    = "\e[1;31m"
B_GREEN  = "\e[1;32m"
B_YELLOW = "\e[1;33m"
B_BLUE   = "\e[1;34m"
B_PURPLE = "\e[1;35m"
B_CYAN   = "\e[1;36m"
B_WHITE  = "\e[1;37m"

RESET    = "\e[0m"

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

COMPOSE            = ./srcs/docker-compose.yml

# in makefile you can use an env variable directly as a make variable :
#  -> https://ftp.gnu.org/old-gnu/Manuals/make-3.79.1/html_chapter/make_6.html#SEC68
# so if you want to get the home directory you can use $(HOME)
# however, this will not give the same result if you run make in sudo, ex :
#  make      : /home/asususus
#  sudo make : /root
# but you can use this command `eval echo "~$SUDO_USER"` to get
# the home directory of the user using sudo, it works in non-sudo also :
# - $SUDO_USER :
#   - in normal mode its value is ""
#   - in sudo mode its value is the user (same as $USER in normal mode)
# - ~$SUDO_USER :
#   - in linux "~USER" print the home directory of a user
# https://stackoverflow.com/questions/77088135/makefile-subst-doesnt-use-make-variable-as-expected
#USER_HOME        := $(shell echo ~$$SUDO_USER)
USER_HOME        := $(shell eval echo "~$$SUDO_USER")
# extract env variables in .env file
# then expend the home path
# then expend the pwd path
# and finally remove the leading "EXPEND_" word
EXPENDED_ENV_VAR := $(shell grep "^#EXPEND_" ./srcs/.env)
EXPENDED_ENV_VAR := $(subst $$HOME_PATH,$(USER_HOME),$(EXPENDED_ENV_VAR))
EXPENDED_ENV_VAR := $(subst $$PWD_PATH,$(shell pwd),$(EXPENDED_ENV_VAR))
EXPENDED_ENV_VAR := $(EXPENDED_ENV_VAR:#EXPEND_%=%)
TESTVAR := $(subst $$HOME_PATH,$(USER_HOME),"$$HOME_PATH/project/dir")
TESTVAR := $(USER_HOME)/project/dir

# this creates a list of the path from the list of the variables :
#   VAR_1=/path/to_1 VAR_2=/path/to_2
#   becomes :
#   /path/to_1 /path/to_2
# first, foreach execute an action on each space separated parts : the variables
#   - VAR_1=/path/to_1
#   - VAR_2=/path/to_2
# then on each of them, it substitute the "=" with a space " " :
#   - VAR_1 /path/to_1
#   - VAR_2 /path/to_2
# and it only keeps the second word :
#   -       /path/to_1
#   -       /path/to_2
VOLUMES_D         = $(foreach val,$(EXPENDED_ENV_VAR),$(word 2, $(subst =, ,$(val))))

# url for wordpress, use in makefile to change local
WP_URL            = $(shell grep "WP_URL" ./srcs/.env | cut -d "=" -f 2)

# list of running containers, see : https://stackoverflow.com/questions/10024279/how-to-use-shell-commands-in-makefile
RUNNING           = $(shell docker ps -q)
# list of volumes
VOLUMES           = $(shell docker volume ls -q)


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

#all: require build up
all: testt

testt:
	@echo $(B_YELLOW)"user home:"$(RESET)
	@echo $(USER_HOME)
	@echo $(B_YELLOW)"expended env var:"$(RESET)
	@echo $(EXPENDED_ENV_VAR)
	@echo $(B_YELLOW)"test var:"$(RESET)
	@echo $(TESTVAR)

require:
#	remove all the lines starting with "HOST_VOLUME_" in .env
	@sed -i "/^HOST_VOLUME_/d" ./srcs/.env
#	add new expended lines starting with "HOST_VOLUME_" after the line "# EXPENDED LINES :" in .env
	@$(foreach val,$(EXPENDED_ENV_VAR),sed -i "/^# EXPENDED LINES/a\$(val)" ./srcs/.env;)
# create the volumes directories
	mkdir -p $(VOLUMES_D)
# create the ssl folder to avoid pbm at nginx docker creation
	mkdir -p ./srcs/requirements/nginx/conf/ssl
# verify if the wordpress url is added to the local path
	- if ! grep "127.0.0.1  $(WP_URL)" /etc/hosts 2> /dev/null; then \
		bash -c 'echo -e "\n# adding for lejourduprof (you can delete it)\n127.0.0.1  $(WP_URL)" >> /etc/hosts'; \
		fi

build:
	docker compose -f $(COMPOSE) build

up:
	docker compose -f $(COMPOSE) up -d

down:
	docker compose -f $(COMPOSE) down

# list images, containers, volumes
list:
	@echo $(B_YELLOW)"\nimages:"$(RESET)
	@docker images -a
	@echo $(B_YELLOW)"\nvolumes:"$(RESET)
	@docker volume ls
	@echo $(B_YELLOW)"\nvolumes content:"$(RESET)
	- @ls $(VOLUMES_D)
	@echo $(B_YELLOW)"\nnetworks:"$(RESET)
	@docker network ls
	@echo $(B_YELLOW)"\ncontainers:"$(RESET)
	@docker ps -a
	@echo ""

# remove project images and containers not used
clean:
	- docker stop $(RUNNING)
	docker network prune -f
	docker system prune -f

# remove everything except local volumes data
fclean-images: clean
	- docker stop $(RUNNING)
	docker system prune -af
fclean-volumes: clean
	- docker volume rm $(VOLUMES)
fclean: fclean-images fclean-volumes

re: fclean all

# !! remove everything everything
erase_v:
	- rm -rf $(VOLUMES_D)
new: erase_v re

.PHONY : all $(VOLUMES_D) require build up list clean fclean re erase_v new