#
# Copyright 2016 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

ifeq ($(VOLTHA_BASE)_set,_set)
$(error To get started, please source the env.sh file)
endif

include setup.mk

VENVDIR := venv-$(shell uname -s | tr '[:upper:]' '[:lower:]')

.PHONY: $(DIRS) $(DIRS_CLEAN) $(DIRS_FLAKE8) flake8

default: build

## New directories can be added here
DIRS:=\
voltha \
voltha/northbound/openflow \
voltha/northbound/openflow/agent \
voltha/northbound/openflow/oftest

## If one directory depends on another directory that
## dependency can be expressed here
##
## For example, if the Tibit directory depended on the eoam
## directory being built first, then that can be expressed here.
##  driver/tibit: eoam

# Parallel Build
$(DIRS):
	@echo "    MK $@"
	$(Q)$(MAKE) -C $@

# Parallel Clean
DIRS_CLEAN = $(addsuffix .clean,$(DIRS))
$(DIRS_CLEAN):
	@echo "    CLEAN $(basename $@)"
	$(Q)$(MAKE) -C $(basename $@) clean

# Parallel Flake8
DIRS_FLAKE8 = $(addsuffix .flake8,$(DIRS))
$(DIRS_FLAKE8):
	@echo "    FLAKE8 $(basename $@)"
	-$(Q)$(MAKE) -C $(basename $@) flake8

help:
	@echo "Usage: make [<target>]"
	@echo "where available targets are:"
	@echo
	@echo "build        : Build the Voltha docker image (default target)"
	@echo "clean        : Remove files created by the build and tests"
	@echo "distclean    : Remove venv directory"
	@echo "fetch        : Pre-fetch artifacts for subsequent local builds"
	@echo "flake8       : Run specifically flake8 tests"
	@echo "help         : Print this help"
	@echo "rebuild-venv : Rebuild local Python virtualenv from scratch"
	@echo "venv         : Build local Python virtualenv if did not exist yet"
	@echo "utest        : Run all unit tests"
	@echo

build: utest build-protos docker-base
	docker build -t cord/voltha -f Dockerfile.voltha .

docker-base: .docker-base-built

.docker-base-built: Dockerfile.base Makefile requirements.txt
	docker build -t cord/voltha-base -f Dockerfile.base .
	touch .docker-base-built

build-protos:
	make -C voltha/core/protos

install-protoc:
	make -C voltha/core/protos install-protoc

clean:
	find voltha -name '*.pyc' | xargs rm -f

distclean: clean
	rm -rf ${VENVDIR}

fetch:
	docker pull consul:latest
	docker pull fluent/fluentd:latest
	docker pull gliderlabs/registrator:latest
	docker pull ubuntu:xenial

purge-venv:
	rm -fr ${VENVDIR}

rebuild-venv: purge-venv venv

venv: ${VENVDIR}/.built

${VENVDIR}/.built:
	@ virtualenv ${VENVDIR}
	@ . ${VENVDIR}/bin/activate && \
	    pip install --upgrade pip; \
	    if ! pip install -r requirements.txt; \
	    then \
	        echo "On MAC OS X, if the installation failed with an error \n'<openssl/opensslv.h>': file not found,"; \
	        echo "see the BUILD.md file for a workaround"; \
	    else \
	        uname -s > ${VENVDIR}/.built; \
	    fi

utest: venv
	@ echo "Executing all unit tests"
	. ${VENVDIR}/bin/activate && \
	    nosetests tests

flake8: $(DIRS_FLAKE8)