RM							=	rm
FIND						=	find
COPY						=	cp
LN							=	ln

CONDA						=	conda
CONDA_ENV_FILE				=	environment.yml
CONDA_ENV_NAME				=	csi702

PY							=	python
PY_SETUP					=	setup.py

JUPYTER						=	jupyter
JUPYTERLAB_EXTENSIONS		=	jupyterlab_vim									\
								jupyterlab_templates							\
								@jupyterlab/git									\
								@jupyterlab/github								\
								@mflevine/jupyterlab_html						\
								@jupyter-widgets/jupyterlab-manager				\
								jupyter-matplotlib								\
								@ryantam626/jupyterlab_code_formatter			\
								jupyterlab-python-file
JUPYTERLAB_SERVEREXTENSION	=	jupyterlab_templates							\
								jupyterlab_git									\
								jupyterlab_code_formatter

R							=	Rscript

define makefile_help
	@echo 'Makefile for CSI 702 virtual machine                                      '
	@echo '                                                                          '
	@echo 'Usage:                                                                    '
	@echo '   make all                            Install all dependencies           '
	@echo '   make clean                          Clean up conda packages            '
	@echo '   make help                           display this message               '
	@echo '   make env                            create conda venv and install deps '
	@echo '                                                                          '
endef

define conda_cleanup
	bash -lc "$(CONDA) clean -y -a"
	sudo bash -lc "conda clean -y --packages"
endef

define install_python_deps
	bash -lc "																	\
	$(CONDA) activate $(CONDA_ENV_NAME) &&										\
	$(PY) -m nb_pdf_template.install --minted									\
	"
endef

define install_r_deps
	bash -lc "$(CONDA) activate $(CONDA_ENV_NAME) &&							\
	$(R) -e \"install.packages('remotes', repos = 'https://cran.rstudio.com')\"	\
		 -e \"remotes::install_deps()\""
endef

define update_conda_env
	bash -lc "$(CONDA) env update --file $(CONDA_ENV_FILE)"
endef

define launch_jupyter_lab
	bash -lc "																	\
	$(CONDA) activate $(CONDA_ENV_NAME) &&										\
	$(JUPYTER) lab --ip='0.0.0.0'												\
	"
endef

define install_jupyterlab_extensions
	bash -lc "																	\
	$(CONDA) activate $(CONDA_ENV_NAME) &&										\
	$(JUPYTER) labextension install $(1)										\
	"
endef

define install_serverextension
	bash -lc "																	\
	$(CONDA) activate $(CONDA_ENV_NAME) &&										\
	$(JUPYTER) serverextension enable --py $(1)									\
	"
endef

all : env pydeps rdeps labextensions serverextensions

help :
	$(call makefile_help)

clean :
	$(call conda_cleanup)

env :
	$(call update_conda_env)

lab :
	$(call launch_jupyter_lab)

labextensions :
	$(foreach extension,$(JUPYTERLAB_EXTENSIONS),$(call install_jupyterlab_extensions,--no-build $(extension));)
	bash -lc "$(CONDA) activate $(CONDA_ENV_NAME) && $(JUPYTER) lab build"

pydeps :
	$(call install_python_deps)

rdeps :
	$(call install_r_deps)

serverextensions :
	$(foreach serverextension,$(JUPYTERLAB_SERVEREXTENSION),$(call install_serverextension,$(serverextension));)

.PHONY : all clean env help lab labextensions pydeps rdeps serverextensions $(DIRS)