### Programme ###
# XSLT-Prozessor:
PROCESSOR=xsltproc
PFLAGS=
# XML-Validator
VALIDATOR=xmllint
VFLAGS=--noout #--valid
# Downloadmanager (Alternativ: curl, fetch):
WGET=wget --timestamping
# rsync
RSYNC=rsync
RSYNC_FLAGS=--verbose --recursive --delete --delete-after --delete-excluded --checksum
# Editor
EDITOR?=vim
# Browser
BROWSER?=links

# Verzeichnis, in das exportiert werden soll
DESTDIR?=www-export

### Ressourcen ###
# XSLT-Stylesheets:
STYLE=xsl/xhtml.xsl
DS_STYLE=xsl/datenspuren/xhtml.xsl
STYLE_RSS=xsl/rss.xsl
STYLE_ATOM=xsl/atom.xsl
# Navigationsleiste:
NAVIGATION=content/navigation.xml
# XML-Skeletons
SKELETONS:=$(wildcard content/skel-*.xml)
SKEL=empty
# Zu verwendendes Skeleton
SKELFILE=content/skel-$(SKEL).xml
# Dateinamen der Inhalte:
CONTENT=$(PAGES) $(DS_PAGES) $(NEWSFILES)
# Chaosupdates
WWW_CCC_DE_UPDATES=chaosupdates.rdf

PAGES:=$(patsubst content/%.xml, www/%.html, $(filter-out $(NAVIGATION) $(SKELETONS), $(wildcard content/*.xml)))
DS_PAGES:=$(patsubst content/datenspuren/%.xml, www/datenspuren/%.html, $(wildcard content/datenspuren/*.xml))
NEWSINDEX:=content/news.xml
NEWSITEMS:=$(filter-out $(NEWSINDEX), $(wildcard content/news/*.xml))
NEWSFILES:=www/news.html www/news-rss.xml www/news-atom.xml
DTD:=dtd/c3d2web.dtd
CLEAN=$(CONTENT) $(NEWSFILES) $(WWW_CCC_DE_UPDATES)

### Defaults ###
.PHONY: export contents clean mrproper all install check mirrorcontent
.PRECIOUS: content/%.xml www/%.html content/datenspuren/%.xml www/datenspuren/%.html
.SILENT: check

all: contents

install: export

contents: $(CONTENT) $(DTD)

export: contents
	$(RSYNC) $(RSYNC_FLAGS) --exclude=".svn/" www/ $(WWW_CCC_DE_UPDATES) content dtd xsl  $(DESTDIR)/


check: $(PAGES)
	ln -sfn $(PWD)/dtd www/DTD
	for page in $^ ; do \
	  echo "Checking $${page}..." ; \
	  $(VALIDATOR) $(VFLAGS) $${page} ; \
	done
	rm -f www/DTD

### Regeln für den XSLT-Prozess ###
www/news.html: $(STYLE)
www/news-rss.xml: $(STYLE_RSS)
www/news-atom.xml: $(STYLE_ATOM)

$(NEWSFILES): $(NAVIGATION) $(NEWSINDEX)
	$(VALIDATOR) $(VFLAGS) $(NEWSINDEX)
	$(PROCESSOR) $(PFLAGS) -o $@ $(filter-out $(NEWSITEMS) $(NAVIGATION) $(NEWSINDEX),$^) $(NEWSINDEX)

$(NEWSINDEX): $(NEWSITEMS) Makefile
	for item in $(NEWSITEMS) ; do \
	  $(VALIDATOR) $(VFLAGS) $${item} || exit 1 ; \
	done

	{ echo '<?xml version="1.0" encoding="UTF-8"?>' ; \
	echo '<!DOCTYPE page SYSTEM "../dtd/c3d2web.dtd">' ; \
	echo '<?xml-stylesheet type="text/xsl" href="../xsl/html.xsl" ?>' ; \
	echo "<page title=\"News\">"; \
	echo "  <news>"; \
	for item in $(patsubst content/news/%,news/%,$(NEWSITEMS)) ; do \
	  echo "    <newsfile>$${item}</newsfile>"; \
	done; \
	echo "  </news>"; \
	echo "</page>"; } > $@

www/datenspuren/%.html: content/datenspuren/%.xml $(DS_STYLE)
        # -- MNE-20060421: Lt. Astro geht Validierung noch nicht mit dem Fahrplan,
        #                  daher fuer Datenspuren auskommentiert
	$(VALIDATOR) $(VFLAGS) $<
	$(PROCESSOR) $(PFLAGS) -o $@ $(DS_STYLE) $<

www/%.html: content/%.xml $(STYLE) $(NAVIGATION) $(WWW_CCC_DE_UPDATES)
	$(VALIDATOR) $(VFLAGS) $<
	$(PROCESSOR) $(PFLAGS) -o $@ $(STYLE) $<

### Hilfsregeln zum Editieren ###
edit/%:
	@if [ ! -e  content/$(@F).xml ] ; then \
		cp $(SKELFILE) content/$(@F).xml ;\
	fi

	@$(EDITOR) content/$(@F).xml

	@if diff -q $(SKELFILE) content/$(@F).xml >/dev/null ; then \
		echo "Warning: content/$(@F).xml does not differ from the skeleton $(SKELFILE)" ;\
		rm -i content/$(@F).xml ;\
	fi

view/%: www/%.html
	@$(BROWSER) $<

content/%.xml:
	$(MAKE) edit/$(patsubst content/%.xml,%,$@)

### Die neuesten Chaosupdates holen ###
$(WWW_CCC_DE_UPDATES):
	$(WGET) http://www.ccc.de/updates/$(WWW_CCC_DE_UPDATES) || \
	cp chaosupdates-2006-01-02.rdf $@

### Mr. Propper ###
clean:
	rm -f $(CLEAN)

mrproper: clean
	rm -f $(WWW_CCC_DE_UPDATES)
	rm -f $(XHTML_DTD_FILES)
	rm -rf www-export