SRC_DIR = ./src
SRCS := $(wildcard $(SRC_DIR)/**)

# Patch these to select a different build profile or target
# The target shouldn't change any time soon. WASM64, I guess. Other targets
# aren't aimed at the web, so you shouldn't be using this makefile.
CARGO_TARGET := wasm32-unknown-unknown
CARGO_PROFILE := wasm-release

.PHONY: clean full-clean web tarball

web: out/boids.js out/boids_bg.wasm out/index.html

tarball: boids_web_root.tar

boids_web_root.tar: out/boids.js out/boids_bg.wasm out/index.html
	tar -caf $@ $<

target/$(CARGO_TARGET)/$(CARGO_PROFILE)/another-boids-in-rust.wasm: $(SRCS) Cargo.lock Cargo.toml
	cargo build --profile $(CARGO_PROFILE) --target $(CARGO_TARGET)

out:
	mkdir $@

# Both the JS and WASM files are generated by the wasm-bindgen call, so both
# get to be on the target half of this recipe.
out/boids.js out/boids_bg.wasm &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/another-boids-in-rust.wasm | out
	wasm-bindgen --no-typescript --target web --out-dir ./out/ --out-name boids target/$(CARGO_TARGET)/$(CARGO_PROFILE)/another-boids-in-rust.wasm

out/index.html: www/index.html
	cp -a $< $@

# Clean the web build, but not the Cargo cache. Cargo handles it's own caching
# and I don't want to obliterate it all the time.
clean:
	rm -rf out/ boids_web_root.tar

# Delete everything, including the Cargo build cache. In case someone needs
# this, I guess.
full-clean: clean
	cargo clean