.POSIX:
PAGES := $(shell find _content -name 'index.md' | sed 's/^_content/build/;s/md$$/html/')
PAGES_MD := $(shell find _content -name 'index.md' | sed 's/^_content/build/')
PAGES_FEED := $(shell find _content -name 'index.md' | sed 's/md$$/html/')
STATIC := $(shell find static -type f | sed 's/^/build\//')
IMG := $(shell find _content -regex '.*\.\(png\|gif\|jpg\)$$' | sed 's/^_content/build/')
PANDOC_ARGS = -f markdown-smart --wrap=none --lua-filter filters/*.lua

.PHONY: all
all: $(IMG) build/index.html build/projects/index.html $(PAGES) $(PAGES_MD) build/feed.xml build/feed-archive.xml build/feed.json build/feed-archive.json $(STATIC) build/static/style.css

.PHONY: push
push: all
	rsync --delete -vrlc build/ ce9e:/var/www/blog

build/%.html: build/%.md _templates/base.html filters/*.lua
	pandoc $(PANDOC_ARGS) --template _templates/base.html $< -o $@
	@sed -i 's/<tr class="header">/<tr>/g' $@

build/%.md: _content/%.md
	@mkdir -p $$(dirname $@)
	ln -f $< $@

build/index.md: _content/posts/*/index.md posts.sh
	@mkdir -p $$(dirname $@)
	./posts.sh > $@

.PHONY: build/projects/index.md
build/projects/index.md: projects.py
	@mkdir -p $$(dirname $@)
	python3 projects.py > $@

_content/%.html: _content/%.md filters/*.lua
	pandoc $(PANDOC_ARGS) $< -o $@
	@sed -i 's/<tr class="header">/<tr>/g' $@

build/%.png: _content/%.png
	@mkdir -p $$(dirname $@)
	ln -f $< $@

build/%.jpg: _content/%.jpg
	@mkdir -p $$(dirname $@)
	ln -f $< $@

build/%.gif: _content/%.gif
	@mkdir -p $$(dirname $@)
	ln -f $< $@

build/feed.xml: feed-atom.sh $(PAGES_FEED)
	./feed-atom.sh > $@

build/feed-archive.xml: feed-atom.sh $(PAGES_FEED)
	./feed-atom.sh -a > $@

build/feed.json: feed-json.sh $(PAGES_FEED)
	./feed-json.sh > $@

build/feed-archive.json: feed-json.sh $(PAGES_FEED)
	./feed-json.sh -a > $@

build/static/%: static/%
	@mkdir -p $$(dirname $@)
	ln -f $< $@

build/static/style.css: style.css
	cat node_modules/mfbs/css/base.css node_modules/mfbs/css/layout.css node_modules/mfbs/css/fontsize.css $< > $@

.PHONY: clean
clean:
	rm -rf build
	rm -f $(PAGES_FEED)