VERBOSE ?= @

PANDOC_FLAGS := -f markdown -s --template=./template.html

# The full path to the Makefile
MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
# The path to the directory of the Makefile
MAKEFILE_DIR := $(dir $(MAKEFILE_PATH))

HTML_ROOT := $(MAKEFILE_DIR)
GAME_ROOT := $(MAKEFILE_DIR)/../
RULES_ROOT := $(GAME_ROOT)/rules
MAPS_ROOT := $(GAME_ROOT)/maps
DATA_ROOT := $(GAME_ROOT)/data
CARDS_YML_DIR := $(DATA_ROOT)/cards
LATEX_ROOT := $(GAME_ROOT)/latex
CARDS_PDF_DIR := $(LATEX_ROOT)/build

GENERATE_CARD := $(GAME_ROOT)scripts/generate_card.py
GENERATE_CARD_ARGS := --format markdown

SETS := $(shell find $(CARDS_YML_DIR) -mindepth 1 -type d -printf "%f\n")
SETS_SOURCEDIRS := $(foreach set, $(SETS), $(addprefix $(CARDS_YML_DIR)/, $(set)))

BUILDDIR := $(MAKEFILE_DIR)/build

RULE_FILES := rules.md tiles.md ai.md
DE_RULES := $(addprefix $(RULES_ROOT)/de/,$(RULE_FILES))
EN_RULES := $(addprefix $(RULES_ROOT)/en/,$(RULE_FILES))
RULES := $(DE_RULES) $(EN_RULES)
RULES_HTML := $(subst $(RULES_ROOT), $(BUILDDIR)/rules, $(RULES:.md=.html))

SITES := index.md rules.md cards.md maps.md
HTML := $(addprefix $(BUILDDIR)/,$(SITES:.md=.html))

VPATH := $(RULES_ROOT)

# Create a list of yaml card definitions
CARDS_YAML := $(foreach dir,$(SETS_SOURCEDIRS),$(wildcard $(dir)/*.yml))

MAKEFILE_LIST := Makefile

.PHONY: all clean maps
all: $(HTML) $(RULES_HTML) maps

clean:
	rm -rf $(BUILDDIR)

maps:
	@echo "building		$@"
	$(VERBOSE) ln -sf $(MAPS_ROOT) $(BUILDDIR)/maps
	$(VERBOSE) make -C $(MAPS_ROOT)

define generateHtml
$(1)/%.html: %.md $(MAKEFILE_LIST)
	@echo "building		$$@"
	@if test \( ! \( -d $$(@D) \) \) ;then mkdir -p $$(@D);fi
	$(VERBOSE) if [[ $$$$(cat $$< | wc -l) -gt 80 ]]; \
		then pandoc --toc $(PANDOC_FLAGS) $$< -o $$@; \
		else pandoc $(PANDOC_FLAGS) $$< -o $$@; fi
endef

$(eval $(call generateHtml, $(BUILDDIR)))
$(eval $(call generateHtml, $(BUILDDIR)/rules))

cards.md: $(CARDS_YAML) $(GENERATE_CARD) $(MAKEFILE_LIST)
	@echo "render cards		$@"
	$(VERBOSE) ln -sf $(DATA_ROOT)/cards $(BUILDDIR)/cards-data
	$(VERBOSE) ln -sf $(CARDS_PDF_DIR) $(BUILDDIR)/cards
	$(VERBOSE) make -C $(LATEX_ROOT)
	@echo "building		$@"
	$(VERBOSE) echo -e "% Cards" > $@
	$(VERBOSE) for set in $(SETS); \
		do echo -e "\n##" $$set >> $@; \
		for card in $(CARDS_YML_DIR)/$$set/*.yml; \
			do echo "" >> $@; \
			$(GENERATE_CARD) $(GENERATE_CARD_ARGS) $$card >> $@; \
		done; \
	done