# Copyright (c) 2016 Cisco and/or its affiliates.
# 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.

WS_ROOT=$(CURDIR)
BR=$(WS_ROOT)/build-root
CCACHE_DIR?=$(BR)/.ccache
V?=0
GDB?=gdb

MINIMAL_STARTUP_CONF="unix { interactive } dpdk { no-pci socket-mem 1024 }"

DEB_DEPENDS  = curl build-essential autoconf automake bison libssl-dev ccache
DEB_DEPENDS += debhelper dkms openjdk-7-jdk git libtool libganglia1-dev libapr1-dev
DEB_DEPENDS += libconfuse-dev git-review


.PHONY: help bootstrap wipe wipe-release build build-release rebuild rebuild-release
.PHONY: run run-release debug debug-release build-vat run-vat pkg-deb pkg-rpm

help:
	@echo "Make Targets:"
	@echo " bootstrap           - prepare tree for build"
	@echo " wipe                - wipe all products of debug build "
	@echo " wipe-release        - wipe all products of release build "
	@echo " build               - build debug binaries"
	@echo " build-release       - build release binaries"
	@echo " rebuild             - wipe and build debug binares"
	@echo " rebuild-release     - wipe and build release binares"
	@echo " run                 - run debug binary"
	@echo " run-release         - run release binary"
	@echo " debug               - run debug binary with debugger"
	@echo " debug-release       - run release binary with debugger"
	@echo " build-vat           - build vpp-api-test tool"
	@echo " run-vat             - run vpp-api-test tool"
	@echo " pkg-deb             - build DEB packages"
	@echo " pkg-rpm             - build RPM packages"
	@echo ""
	@echo "Make Arguments:"
	@echo " V=[0|1]             - set build verbosity level"
	@echo " STARTUP_CONF=<path> - startup configuration file"
	@echo "                       (e.g. /etc/vpp/startup.conf)"
	@echo " GDB=<path>          - gdb binary to use for debugging"
	@echo ""
	@echo "Current Argumernt Values:"
	@echo " V            = $(V)"
	@echo " STARTUP_CONF = $(STARTUP_CONF)"
	@echo " GDB          = $(GDB)"

$(BR)/.bootstrap.ok:
ifeq ("$(shell lsb_release -si)", "Ubuntu")
	@MISSING=$$(apt-get install -y -qq -s $(DEB_DEPENDS) | grep "^Inst ") ; \
	if [ -n "$$MISSING" ] ; then \
	  echo "\nPlease install missing packages: \n$$MISSING\n" ; \
	  exit 1 ; \
	fi ; \
	exit 0
endif
	@echo "SOURCE_PATH = $(WS_ROOT)"                   > $(BR)/build-config.mk
	@echo "#!/bin/bash\n"                              > $(BR)/path_setup
	@echo 'export PATH=$(BR)/tools/ccache-bin:$$PATH' >> $(BR)/path_setup
	@echo 'export PATH=$(BR)/tools/bin:$$PATH'        >> $(BR)/path_setup
	@echo 'export CCACHE_DIR=$(CCACHE_DIR)'           >> $(BR)/path_setup
	
ifeq ("$(wildcard /usr/bin/ccache )","")
	@echo "WARNING: Please install ccache AYEC and re-run this script"
else
	@rm -rf $(BR)/tools/ccache-bin
	@mkdir -p $(BR)/tools/ccache-bin
	@ln -s /usr/bin/ccache $(BR)/tools/ccache-bin/gcc
	@ln -s /usr/bin/ccache $(BR)/tools/ccache-bin/g++
endif
	@make -C $(BR) V=$(V) is_build_tool=yes vppapigen-install
	@touch $@

bootstrap: $(BR)/.bootstrap.ok

define make
	@make -C $(BR) V=$(V) PLATFORM=vpp TAG=$(1) $(2)
endef

build: $(BR)/.bootstrap.ok
	$(call make,vpp_debug,vpp-install)

wipe: $(BR)/.bootstrap.ok
	$(call make,vpp_debug,vpp-wipe)

rebuild: wipe build

build-release: $(BR)/.bootstrap.ok
	$(call make,vpp,vpp-install)

wipe-release: $(BR)/.bootstrap.ok
	$(call make,vpp,vpp-wipe)

rebuild-release: wipe-release build-release

ifeq ("$(wildcard $(STARTUP_CONF))","")
define run
	@echo "WARNING: STARTUP_CONF not defined or file doesn't exist."
	@echo "         Running with minimal startup config: $(MINIMAL_STARTUP_CONF)\n"
	@sudo $(1) $(MINIMAL_STARTUP_CONF)
endef
else
define run
	@sudo $(1) -c $(STARTUP_CONF)
endef
endif

run:
	$(call run, $(BR)/install-vpp_debug-native/vpp/bin/vpp)

run-release:
	$(call run, $(BR)/install-vpp-native/vpp/bin/vpp)

debug:
	$(call run, $(GDB) --args $(BR)/install-vpp_debug-native/vpp/bin/vpp)

debug-release:
	$(call run, $(GDB) --args $(BR)/install-vpp-native/vpp/bin/vpp)

build-vat:
	$(call make,vpp_debug,vpp-api-test-install)

run-vat:
	@sudo $(BR)/install-vpp_debug-native/vpp-api-test/bin/vpp_api_test

pkg-deb:
	$(call make,vpp,install-deb)

pkg-rpm:
	$(call make,vpp,install-rpm)