# lcmail-wizard
# =============
# Setup procmail filters and lcmail-wizard.py script
# See README.md for more information
# --------------------------------------------------

# destination
# -----------
FORWARD  = ${HOME}/.forward
PMAILRC  = ${HOME}/.procmailrc
PMAILDIR = ${HOME}/.procmail

# shell env
# ---------
HOSTNAME = $(shell hostname)
HOME     = $(shell echo ~)
PWD      = $(shell pwd)

all:
	@echo "lcmail-wizard is a python script + config, so there is nothing to do."
	@echo "Try \"make install\" instead."

init: filter-rules.rc lcmail-wizard.yml lcmail-wizard.cron
	@echo "[INFO] Customize, if you want:"
	@echo "  * filter-rules.rc    -> Mail filter rules"
	@echo "  * lcmail-wizard.yml  -> Mail auto trash days"
	@echo "  * lcmail-wizard.cron -> Mail auto trash scheduler"

filter-rules.rc:
	@echo "[INFO] Create $@ from filter-rules.def.rc"
	@cp filter-rules.def.rc $@

lcmail-wizard.yml:
	@echo "[INFO] Create $@ from lcmail-wizard.def.yml"
	@cp lcmail-wizard.def.yml $@

lcmail-wizard.cron:
	@echo "[INFO] Create $@ from lcmail-wizard.def.cron"
	@head -n5 lcmail-wizard.def.cron   >  lcmail-wizard.cron
	@printf '\nDEST="%s"\n\n' "${PWD}" >> lcmail-wizard.cron
	@tail -n2 lcmail-wizard.def.cron   >> lcmail-wizard.cron

install: init config schedule

config:
	@echo "[INFO] Create configuration"
	@echo "[INFO] Create lcmail-wizard.py log dir"
	@mkdir -p log
	@echo "[INFO] Create .maildir structure using lcmail-wizard.py"
	@./lcmail-wizard.py --create
	@echo "[INFO] Backup ${PMAILRC} file, if present"
	@if [ -f "${PMAILRC}" ]; then mv -f "${PMAILRC}" "${PMAILRC}.orig" 2> /dev/null; fi
	@echo "[INFO] Backup ${PMAILDIR} file, if present"
	@if [ -d "${PMAILDIR}" ]; then mv -f "${PMAILDIR}" "${PMAILDIR}.orig" 2> /dev/null; fi
	@echo "[INFO] Create ${PMAILDIR} structure"
	@mkdir -p "${PMAILDIR}/log"
	@echo "[INFO] Copy procmail configuration files"
	@cp .procmailrc "${PMAILRC}"
	@cp filter-rules.rc "${PMAILDIR}/"
	@echo "[INFO] Backup ${FORWARD} file"
	@cp -a "${FORWARD}" "${FORWARD}.orig"
	@echo "[INFO] Enable procmail, rewriting ${FORWARD}"
	@cp .forward "${FORWARD}"
	@chmod 0644 "${FORWARD}"

schedule:
	@echo "[INFO] Schedule lcmail-wizard.py using crontab"
	@if [ -f "lcmail-wizard.cron.lock" ]; then \
		echo "[WARN] Already scheduled on $(shell cat "lcmail-wizard.cron.lock" 2> /dev/null)"; \
		echo "[INFO] Here its content"; \
		ssh $(shell cat "lcmail-wizard.cron.lock" 2> /dev/null) 'crontab -l'; \
	else \
		echo "[INFO] Scheduled on ${HOSTNAME}"; \
		echo "${HOSTNAME}" >> "lcmail-wizard.cron.lock"; \
		crontab "lcmail-wizard.cron"; \
	fi

reconfig:
	@echo "[INFO] Apply new configurations"
	@echo "[INFO] Create .maildir structure using lcmail-wizard.py"
	@./lcmail-wizard.py --create
	@echo "[INFO] Copy procmail configuration files"
	@mv -f "${PMAILDIR}/filter-rules.rc" "${PMAILDIR}/filter-rules.rc.bk" 2> /dev/null
	@cp filter-rules.rc "${PMAILDIR}/"

uninstall: unschedule
	@echo "[INFO] Remove configuration"
	@echo "[INFO] Restore original ${FORWARD}"
	@cp -af "${FORWARD}.orig" "${FORWARD}"
	@rm -f "${FORWARD}.orig"
	@echo "[INFO] Remove procmail conf files"
	@rm -rf "${PMAILDIR}"
	@rm -f "${PMAILRC}"
	@echo "[INFO] Restore original ${PMAILRC}, if present"
	@if [ -f "${PMAILRC}.orig" ]; then mv -f "${PMAILRC}.orig" "${PMAILRC}" 2> /dev/null; fi
	@echo "[INFO] Restore original ${PMAILDIR}, if present"
	@if [ -d "${PMAILDIR}.orig" ]; then mv -f "${PMAILDIR}.orig" "${PMAILDIR}" 2> /dev/null; fi
	@echo "[WARN] Structure inside ~/.maildir not restored,"
	@echo "added dirs must be manually remove."

unschedule:
	@echo "[INFO] Unschedule lcmail-wizard.py using crontab"
	@if [ -f "lcmail-wizard.cron.lock" ]; then \
		echo "[INFO] Disable lcmail-wizard.py schedule on $(shell cat "lcmail-wizard.cron.lock" 2> /dev/null)"; \
		echo "[INFO] Here its content"; \
		ssh $(shell cat "lcmail-wizard.cron.lock" 2> /dev/null) 'crontab -l'; \
		echo "[INFO] Remove it"; \
		ssh $(shell cat "lcmail-wizard.cron.lock" 2> /dev/null) 'crontab -r'; \
		rm -f lcmail-wizard.cron.lock; \
	else \
		echo "[WARN] None or empty cron.lock file found, proceed manually"; \
	fi

clean:
	@echo "[INFO] Remove custom config files"
	@rm -f filter-rules.rc lcmail-wizard.yml lcmail-wizard.cron lcmail-wizard.cron.lock

.PHONY: init filter-rules.rc lcmail-wizard.yml lcmail-wizard.cron install config schedule reconfig uninstall unschedule clean