##
# Provides targets to build, test and run the Viz Vanadium Viewer application.
#
# make  # Builds the project.
# make test  # Runs unit and integration tests.
# make start  # Starts the services and http server needed to run the application at http://localhost:9000
# make clean  # Deleted all build, testing and other artifacts.
#
# Note: :; at the beginning of commands is a work-around for an issue in MacOS version of GNU `make` where
# `make` may not invoke shell to run a command if command is deemed simple enough causing environment variables
# like PATH that are modified here not to be used.
# :; tricks make to assume command is not simple and needs to invoke shell.
# see http://stackoverflow.com/questions/21708839/problems-setting-path-in-makefile for details.
##

export GOPATH:=$(VANADIUM_ROOT)/release/projects/namespace_browser/go
export VDLPATH:=$(VANADIUM_ROOT)/release/projects/namespace_browser/go
export GOBIN:=$(VANADIUM_ROOT)/release/projects/namespace_browser/go/bin

PATH:=$(VANADIUM_ROOT)/environment/cout/node/bin:$(PATH)
PATH:=node_modules/.bin:$(GOBIN):$(PATH)

ifndef TMPDIR
	export TMPDIR:=/tmp
endif
ORIG_TMPDIR:=$(TMPDIR)
TMPDIR:=$(TMPDIR)/viz

VANADIUM_JS:=$(VANADIUM_ROOT)/release/javascript/core

# All JS and CSS files except build.js and third party.
BROWSERIFY_FILES = $(shell find src -name "*.js" -o -name "*.css")
BROWSERIFY_OPTIONS = --transform ./main-transform --debug

# All Go and VDL files.
GO_FILES = $(shell find go -name "*.go")
VDL_FILES = $(shell find go -name "*.vdl")

default: build

# Creating the bundle JS file.
public/bundle.js: $(BROWSERIFY_FILES) node_modules src/components/help/content/*.md
	:;jshint src # lint all src JavaScript files.
	:;browserify src/app.js $(BROWSERIFY_OPTIONS) $< | exorcist $@.map > $@ # Browserify and generate map file.

# Creating the bundle HTML file.
public/bundle.html: web-component-dependencies.html node_modules bower_components
	:;vulcanize --output public/bundle.html web-component-dependencies.html --inline

# Install what we need from NPM.
node_modules: package.json
	:;npm prune
	:;npm install --quiet
	# TODO(aghassemi) Temporarily use local release/javascript/core add github/npm to package.json later
	cd "$(VANADIUM_ROOT)/release/javascript/core" && npm link
	:;npm link veyron
	cd "$(VANADIUM_ROOT)/release/javascript/vom" && npm link
	:;npm link vom

	touch node_modules

# Install non-JS dependencies from bower.
bower_components: bower.json node_modules
	:;bower prune --config.interactive=false
	:;bower install --config.interactive=false --quiet
	touch bower_components

go/bin: directories
	v23 go install v.io/core/veyron/services/mounttable/mounttabled
	v23 go install v.io/core/veyron/tools/principal
	v23 go install v.io/core/veyron/tools/servicerunner
	v23 go install sample/sampled

# PHONY targets:

# Builds the viz bundle and go binaries.
all: go/bin build

# Builds the viz bundle.
build: directories public/bundle.js public/bundle.html

# Run unit and integration tests.
test: all
	:;jshint test # lint all test JavaScript files.
	# Set the TMPDIR back to ORIG_TMPDIR before calling "make test-runner" so
	# that we don't add "viz" suffix to TMPDIR twice.
	TMPDIR=$(ORIG_TMPDIR) node $(VANADIUM_JS)/test/integration/runner.js -- \
	make test-runner

test-runner: directories
	@$(RM) -fr $(VANADIUM_JS)/extension/build-test
	$(MAKE) -C $(VANADIUM_JS)/extension build-test
	:;./scripts/services/run-tests.sh

# Continuously watch for changes to .js, .html or .css files.
# Rebundles the appropriate bundles when local files change.
watch:
	watch -n 1 make build

# Continuously reruns the tests as they change.
watch-test: go/bin
	:;PROVA_WATCH=true ./scripts/services/run-tests.sh

# Serves the needed daemons and starts a server at http://localhost:9000
# CTRL-C to stop
start: all go/bin
	:;./scripts/services/run-webapp.sh

# Create needed directories like TMPDIR.
directories:
	mkdir -p $(TMPDIR)

# Clean all build artifacts.
clean:
	rm -f public/bundle.*
	rm -rf node_modules
	rm -rf go/bin
	rm -rf bower_components
	rm -rf $(TMPDIR)

.PHONY: all build start clean watch test watch-test directories