# Uni Slides – Unified Makefile
# Multi-course Marp build system (HdM + DHBW)

.PHONY: help dev build html pdf klausur deploy deploy-index build-index \
	clean install qr qr-slides optimize-images

# -----------------------------------------------------------------------------
# Course registry
# -----------------------------------------------------------------------------
COURSES   = 223015b 223015c dhbw
SLIDES_DIR = slides
DEPLOY_HOST = tengo@tuttle.uberspace.de

# Per-course settings: NAME, KAPITEL, DEPLOY, PORT, KLAUSUR (1 or empty)
223015b_NAME    = Dateiformate, Schnittstellen, Speichermedien
223015b_KAPITEL = 00-intro 01-grundlagen-text-audio 02-bild-audio-video 03-speichermedien-schnittstellen 04-distribution-apis-zukunft 05-vertiefung-offene-fragen klausurfolien klausurfragen
223015b_DEPLOY  = /home/tengo/html/hdm/223015b
223015b_PORT    = 1313
223015b_KLAUSUR = 1

223015c_NAME    = Internettechnologien
223015c_KAPITEL = 01-geschichte-grundlagen-html 02-netzwerke-protokolle-css 03-interaktivitaet-javascript klausurfolien klausurfragen
223015c_DEPLOY  = /home/tengo/html/hdm/223015c
223015c_PORT    = 1314
223015c_KLAUSUR = 1

dhbw_NAME    = Technik I – Grundlagen IT
dhbw_KAPITEL = 01_web_eng 02_css_extended 03_nodejs_basics 04_nodejs_advanced 05_testing 06_typescript 07_docker 08_best_practices
dhbw_DEPLOY  = /home/tengo/html/dhbw
dhbw_PORT    = 1315
dhbw_KLAUSUR =

# Courses with klausur extraction enabled
KLAUSUR_COURSES = $(foreach c,$(COURSES),$(if $($(c)_KLAUSUR),$(c),))
ROOT_DEPLOY     = /home/tengo/html/hdm

# -----------------------------------------------------------------------------
# Help
# -----------------------------------------------------------------------------
help:
	@echo "Uni Slides – Unified Build System"
	@echo ""
	@echo "Courses:"
	@for c in $(COURSES); do echo "  $$c"; done
	@echo ""
	@echo "Per-course (replace <c> with course id):"
	@echo "  make dev-<c>        Live server (HMR)"
	@echo "  make build-<c>      Build HTML + PDF"
	@echo "  make html-<c>       Build HTML only"
	@echo "  make pdf-<c>        Build PDF only"
	@echo "  make klausur-<c>    Extract klausur slides"
	@echo "  make deploy-<c>     Build + deploy"
	@echo ""
	@echo "All courses:"
	@echo "  make dev            Combined dev server (port 1312, all courses)"
	@echo "  make build          Build everything"
	@echo "  make html / pdf     HTML / PDF only"
	@echo "  make klausur        Extract klausur (HdM courses)"
	@echo "  make deploy         Deploy everything"
	@echo ""
	@echo "Tools:"
	@echo "  make qr URL=...                  QR code"
	@echo "  make qr-slides COURSE=<c>        QR for course URL"
	@echo "  make optimize-images COURSE=<c>  Resize images"
	@echo "  make clean                       Remove generated files"
	@echo "  make install                     npm install"

# -----------------------------------------------------------------------------
# Build infrastructure
# -----------------------------------------------------------------------------
build/.exists:
	@mkdir -p $(addprefix build/,$(COURSES))
	@touch $@

# -----------------------------------------------------------------------------
# Pattern rules: dev-<c>, build-<c>, html-<c>, pdf-<c>, klausur-<c>, deploy-<c>
# Per-course config read via $($*_VAR)
# -----------------------------------------------------------------------------
dev-%:
	@./scripts/dev-server.sh $* $($*_PORT)

build-%: build/.exists
	@echo "Building $*..."
	@mkdir -p build/$*
	@cp -r $(SLIDES_DIR)/$*/assets build/$*/ 2>/dev/null || true
	@cp -r $(SLIDES_DIR)/$*/materials build/$*/ 2>/dev/null || true
	@for f in $($*_KAPITEL); do \
		if [ -f "$(SLIDES_DIR)/$*/$$f.md" ]; then \
			echo "  $$f"; \
			npx @marp-team/marp-cli $(SLIDES_DIR)/$*/$$f.md -o build/$*/$$f.html; \
			npx @marp-team/marp-cli $(SLIDES_DIR)/$*/$$f.md --pdf --allow-local-files -o build/$*/$$f.pdf; \
		fi \
	done
	@./scripts/generate-index.sh $* build/$*

html-%: build/.exists
	@echo "Building HTML for $*..."
	@mkdir -p build/$*
	@cp -r $(SLIDES_DIR)/$*/assets build/$*/ 2>/dev/null || true
	@cp -r $(SLIDES_DIR)/$*/materials build/$*/ 2>/dev/null || true
	@for f in $($*_KAPITEL); do \
		if [ -f "$(SLIDES_DIR)/$*/$$f.md" ]; then \
			echo "  $$f.html"; \
			npx @marp-team/marp-cli $(SLIDES_DIR)/$*/$$f.md -o build/$*/$$f.html; \
		fi \
	done
	@./scripts/generate-index.sh $* build/$*

pdf-%: build/.exists
	@echo "Building PDFs for $*..."
	@mkdir -p build/$*
	@for f in $($*_KAPITEL); do \
		if [ -f "$(SLIDES_DIR)/$*/$$f.md" ]; then \
			echo "  $$f.pdf"; \
			npx @marp-team/marp-cli $(SLIDES_DIR)/$*/$$f.md --pdf --allow-local-files -o build/$*/$$f.pdf; \
		fi \
	done

klausur-%:
	@./scripts/extract-klausur.sh $*

deploy-%: build-%
	@echo "Deploying $*..."
	scp build/$*/*.html $(DEPLOY_HOST):$($*_DEPLOY)/
	scp build/$*/*.pdf  $(DEPLOY_HOST):$($*_DEPLOY)/ 2>/dev/null || true
	scp build/$*/*.svg  $(DEPLOY_HOST):$($*_DEPLOY)/ 2>/dev/null || true
	scp -r build/$*/assets/    $(DEPLOY_HOST):$($*_DEPLOY)/ 2>/dev/null || true
	scp -r build/$*/materials/ $(DEPLOY_HOST):$($*_DEPLOY)/ 2>/dev/null || true
	@echo "$* deployed."

# -----------------------------------------------------------------------------
# Group targets (all courses)
# -----------------------------------------------------------------------------
dev:
	@./scripts/dev-server.sh

build:   $(addprefix build-,$(COURSES))
html:    $(addprefix html-,$(COURSES))
pdf:     $(addprefix pdf-,$(COURSES))
klausur: $(addprefix klausur-,$(KLAUSUR_COURSES))

build-index: build/.exists
	@echo "Building root index..."
	@mkdir -p build
	@./scripts/generate-root-index.sh

deploy-index: build-index
	@echo "Deploying root index..."
	scp build/index.html $(DEPLOY_HOST):$(ROOT_DEPLOY)/ 2>/dev/null || true
	@echo "Root index deployed."

deploy: build-index $(addprefix deploy-,$(COURSES)) deploy-index
	@echo "All courses deployed."

# -----------------------------------------------------------------------------
# Tools
# -----------------------------------------------------------------------------
qr:
ifndef URL
	@echo "Usage: make qr URL=https://example.com [OUTPUT=qr.png]"
else
	@nix-shell -p qrencode --run 'qrencode -o $(or $(OUTPUT),qr-code.png) -s 10 "$(URL)"'
	@echo "Generated: $(or $(OUTPUT),qr-code.png)"
endif

qr-slides:
ifndef COURSE
	@echo "Usage: make qr-slides COURSE=<course>"
else
	@nix-shell -p qrencode --run 'qrencode -o build/$(COURSE)/qr-$(COURSE).png -s 10 "https://librete.ch/hdm/$(COURSE)/"'
	@echo "Generated: build/$(COURSE)/qr-$(COURSE).png"
endif

optimize-images:
ifndef COURSE
	@echo "Usage: make optimize-images COURSE=<course>"
else
	@echo "Optimizing images for $(COURSE)..."
	@mkdir -p $(SLIDES_DIR)/$(COURSE)/assets-original
	@nix-shell -p imagemagick --run 'for img in $(SLIDES_DIR)/$(COURSE)/assets/*.png $(SLIDES_DIR)/$(COURSE)/assets/*.jpg 2>/dev/null; do \
		[ -f "$$img" ] && cp "$$img" $(SLIDES_DIR)/$(COURSE)/assets-original/ && \
		magick "$$img" -resize "1920x>" -quality 85 "$$img" && echo "  $$(basename $$img)"; \
	done || true'
	@echo "Done. Originals in assets-original/"
endif

clean:
	@echo "Cleaning..."
	rm -rf build/ .dev-index/ *.pdf *.html qr-code.png

install:
	@npm install