LIB=frac
REQS=
ADDONS=
AUXTARGETS=
CMDS=
HTMLLINT=index.html

ULIB=$(shell echo $(LIB) | tr a-z A-Z)
DEPS=$(LIB).md
TARGET=$(LIB).js
FLOWTARGET=$(LIB).flow.js
UGLIFYOPTS=--support-ie8
CLOSURE=/usr/local/lib/node_modules/google-closure-compiler/compiler.jar

## Main Targets

.PHONY: all
all: $(TARGET) $(AUXTARGETS) ## Build library and auxiliary scripts

$(TARGET) $(AUXTARGETS): %.js : %.flow.js
	node -e 'process.stdout.write(require("fs").readFileSync("$<","utf8").replace(/^[ \t]*\/\*[:#][^*]*\*\/\s*(\n)?/gm,"").replace(/\/\*[:#][^*]*\*\//gm,""))' > $@

$(FLOWTARGET): $(DEPS)
	voc $^ || npx voc $^

.PHONY: clean
clean: ## Remove targets and build artifacts
	rm -f $(TARGET) $(FLOWTARGET)

## JavaScript

.PHONY: test mocha
test mocha: test.js $(TARGET) ## Run JS test suite
	mocha -R spec -t 20000

.PHONY: ctest
ctest: ## Build browser test (into ctest/ subdirectory)
	browserify -t brfs test.js > ctest/test.js
	cp -f $(TARGET) ctest/

.PHONY: ctestserv
ctestserv: ## Start a test server on port 8000
	@cd ctest && python -mSimpleHTTPServer || python3 -mhttp.server || npx -y http-server -p 8000 .

.PHONY: fullint
fullint: lint old-lint tslint flow mdlint ## Run all checks

.PHONY: lint
lint: $(TARGET) $(AUXTARGETS) ## Run eslint checks
	@eslint --ext .js,.njs,.json,.html,.htm $(TARGET) $(AUXTARGETS) $(CMDS) $(HTMLLINT) package.json
	if [ -e $(CLOSURE) ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi

.PHONY: old-lint
old-lint: $(TARGET) $(AUXTARGETS) ## Run jshint and jscs checks
	@jshint --show-non-errors $(TARGET) $(AUXTARGETS)
	@jshint --show-non-errors $(CMDS)
	@jshint --show-non-errors package.json
	@jshint --show-non-errors --extract=always $(HTMLLINT)
	@jscs $(TARGET) $(AUXTARGETS)
	if [ -e $(CLOSURE) ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi

.PHONY: tslint
tslint: $(TARGET) ## Run typescript checks
	#@npm install dtslint typescript
	#@npm run-script dtslint
	dtslint types

.PHONY: flow
flow: lint ## Run flow checker
	@flow check --all --show-all-errors

.PHONY: cov
cov: misc/coverage.html ## Run coverage test

misc/coverage.html: $(TARGET) test.js
	mocha --require blanket -R html-cov -t 20000 > $@

.PHONY: coveralls
coveralls: ## Coverage Test + Send to coveralls.io
	mocha --require blanket --reporter mocha-lcov-reporter -t 20000 | node ./node_modules/coveralls/bin/coveralls.js

MDLINT=README.md frac.md
.PHONY: mdlint
mdlint: $(MDLINT) ## Check markdown documents
	alex $^
	mdspell -a -n -x -r --en-us $^

.PHONY: dist
dist: dist-deps $(TARGET) ## Prepare JS files for distribution
	cp $(TARGET) dist/
	cp LICENSE dist/
	uglifyjs $(UGLIFYOPTS) $(TARGET) -o dist/$(LIB).min.js --source-map dist/$(LIB).min.map --preamble "$$(head -n 1 frac.js)"
	misc/strip_sourcemap.sh dist/$(LIB).min.js

.PHONY: aux
aux: $(AUXTARGETS)
.PHONY: dist-deps
dist-deps:

## Python

.PHONY: pylint
pylint: frac.py $(wildcard test_*.py) ## Run pep8 check
	pep8 $^

.PHONY: pypi
pydist: frac.py ## Upload Python module to PyPI
	python setup.py sdist upload

.PHONY: pytest pypytest
pytest: pylint ## Run Python test suite
	py.test -v --durations=5

pypytest: pylint ## Run Python test suite in pypy
	pypy $$(which py.test) -v --durations=5

.PHONY: help
help:
	@grep -hE '(^[a-zA-Z_-][ a-zA-Z_-]*:.*?|^#[#*])' $(MAKEFILE_LIST) | bash misc/help.sh

#* To show a spinner, append "-spin" to any target e.g. cov-spin
%-spin:
	@make $* & bash misc/spin.sh $$!