# Makefile
# Eryn Wells <eryn@erynwells.me>
#

.MAIN		: essentials
essentials	: git-dotfiles nvim-dotfiles tmux-dotfiles zsh-dotfiles
extras		: emacs-dotfiles fish-dotfiles hg-dotfiles mutt-dotfiles nethack-dotfiles
all		: essentials extras

DOTFILES_ROOT 	?= $(.PARSEDIR)

INSTALL 	!= which install
INSTALL_FLAGS 	:= -ls

XDG_BIN_HOME 	?= $(HOME)/.local/bin
XDG_CONFIG_HOME ?= $(HOME)/.config
XDG_STATE_HOME 	?= $(HOME)/.local/state

# Colors
BLUE		= \\x1b[1;34m
WHITE		= \\x1b[1;37m
RESET		= \\x1b[0m


link-dotfile	: .USE
	@echo "    [Linking] $(.TARGET)"
	$(INSTALL) $(INSTALL_FLAGS) $(.ALLSRC) $(.TARGET)

link-config-dir	: .USE
	@echo "    [Linking] $(.TARGET)"
	$(INSTALL) $(INSTALL_FLAGS) $(.ALLSRC) $(.TARGET)

mk-state-dir	: .USE
	@echo "    [Making] $(.TARGET)"
	$(INSTALL) -d $(.TARGET)

dotfile-group	: .USE

missing-binary	: .USE
	@echo "$(BLUE)==> $(WHITE)$(.TARGET:S/-dotfiles//)$(RESET)"
	@echo "binary not found"


#
# Essentials
#
# This are always linked because they're core utilities for my daily terminal
# use.
#

GIT_HOME := $(XDG_CONFIG_HOME)/git
git-config-home		: $(GIT_HOME)
$(GIT_HOME)		: link-config-dir $(DOTFILES_ROOT)/git


$(HOME)/.nethackrc	: link-dotfile $(DOTFILES_ROOT)/nethackrc


NVIM_HOME := $(XDG_CONFIG_HOME)/nvim
nvim-config-home	: $(NVIM_HOME)
$(NVIM_HOME)		: link-config-dir $(DOTFILES_ROOT)/nvim

NVIM_STATE_DIR 		:= $(XDG_STATE_HOME)/nvim
NVIM_STATE_DIRS		:= \
	$(NVIM_STATE_DIR)/backup \
	$(NVIM_STATE_DIR)/shada \
	$(NVIM_STATE_DIR)/swap \
	$(NVIM_STATE_DIR)/undo

$(NVIM_STATE_DIRS)	: mk-state-dir
nvim-state-dirs		: $(NVIM_STATE_DIRS)


TMUX_HOME := $(XDG_CONFIG_HOME)/tmux
tmux-config-home	: $(TMUX_HOME)
$(TMUX_HOME) 		: link-config-dir $(DOTFILES_ROOT)/tmux


ZSH_CONFIG_FILES := $(HOME)/.zshenv $(HOME)/.zshrc $(HOME)/.zprofile
$(HOME)/.zshenv		: link-dotfile $(DOTFILES_ROOT)/zsh/zshenv
$(HOME)/.zshrc		: link-dotfile $(DOTFILES_ROOT)/zsh/zshrc
$(HOME)/.zprofile	: link-dotfile $(DOTFILES_ROOT)/zsh/zprofile


git-dotfiles		: dotfile-group git-config-home
nvim-dotfiles		: dotfile-group nvim-config-home nvim-state-dirs
tmux-dotfiles		: dotfile-group tmux-config-home
zsh-dotfiles		: dotfile-group $(ZSH_CONFIG_FILES)


#
# Extras
#
# These are only installed if the binaries already exist on the system.
#

HAS_EMACS 	!= which emacs >/dev/null && echo YES || echo NO
HAS_FISH 	!= which fish >/dev/null && echo YES || echo NO
HAS_HG 		!= which hg >/dev/null && echo YES || echo NO
HAS_MUTT	!= which mutt >/dev/null && echo YES || echo NO
HAS_NETHACK	!= which nethack >/dev/null && echo YES || echo NO


.if $(HAS_EMACS) == "YES"
EMACS_HOME := $(XDG_CONFIG_HOME)/emacs
emacs-config-home	: $(EMACS_HOME)
$(EMACS_HOME)		: link-config-dir $(DOTFILES_ROOT)/emacs
emacs-dotfiles		: dotfile-group emacs-config-home
.else
emacs-dotfiles		: missing-binary
.endif


.if $(HAS_FISH) == "YES"
FISH_HOME := $(XDG_CONFIG_HOME)/fish
fish-config-home	: $(FISH_HOME)
$(FISH_HOME)		: link-config-dir $(DOTFILES_ROOT)/fish
fish-dotfiles		: dotfile-group fish-config-home
.else
fish-dotfiles		: missing-binary
.endif


.if $(HAS_HG) == "YES"
$(HOME)/.hgrc		: link-dotfile $(DOTFILES_ROOT)/hgrc
hg-dotfiles		: dotfile-group $(HOME)/.hgrc
.else
hg-dotfiles		: missing-binary
.endif


.if $(HAS_MUTT) == "YES"
MUTT_HOME := $(XDG_CONFIG_HOME)/mutt
mutt-config-home	: $(MUTT_HOME)
$(MUTT_HOME)		: link-config-dir $(DOTFILES_ROOT)/mutt
mutt-dotfiles		: dotfile-group mutt-config-home
.else
mutt-dotfiles		: missing-binary
.endif


.if $(HAS_NETHACK) == "YES"
nethack-dotfiles	: print-heading $(HOME)/.nethackrc
.else
nethack-dotfiles	: missing-binary
.endif