all : index.html

#For tools (Works in Ubuntu 20.04 (Including WSL), Mint)
# sudo apt-get install clang-10 lld-10 binaryen
# sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-10 20
# sudo update-alternatives --install /usr/bin/wasm-ld wasm-ld /usr/bin/wasm-ld-10 20

#node-uglify lld clang-10 lld-10 binaryen

#Path to rawdraw
CFLAGS:=-I..

CLANG?=clang
WASMOPT?=wasm-opt
UGLIFYJS?=uglifyjs

CFLAGS+=-DWASM -nostdlib --target=wasm32 \
		-flto -Oz \
		-Wl,--lto-O3 \
		-Wl,--no-entry \
		-Wl,--allow-undefined \
		-Wl,--import-memory

WOFLAGS:=--asyncify --pass-arg=asyncify-imports@bynsyncify.* --pass-arg=asyncify-ignore-indirect

opt.js : template.js main.wasm
	bash -c 'export BLOB=$$(cat main.wasm | base64 | sed -e "$$ ! {/./s/$$/ \\\\/}" ); envsubst < template.js > opt.js'
	#Comment the below line out if you don't want to uglify the javascript.
	$(UGLIFYJS) opt.js -o opt.js

index.html : template.ht opt.js
	bash -c 'export JAVASCRIPT_DATA=$$(cat opt.js); envsubst < template.ht > $@'

main.wasm: rawdraw.c
	$(CLANG) $(CFLAGS) $^ -o $@
	$(WASMOPT) $(WOFLAGS) -Oz main.wasm -o main.wasm
	#wasm-objdump -d main.wasm > main.disassembly.txt

clean:
	rm -rf main.wasm opt.js index.html