# Copyright 2017 pEp Security SA
#
# This file is part of pEp JSON Server Adapter.
#
# pEp JSON Server Adapter is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License, version 3, as
# published by the Free Software Foundation.
#
# pEp JSON Server Adapter is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with pEp JSON Server Adapter.  If not, see <http://www.gnu.org/licenses/>.


HERE:=$(dir $(lastword $(MAKEFILE_LIST)))


######### General #########
BUILD_ON:=$(shell uname)

# This variable specifies the platform that the engine should be cross-compiled for.
BUILD_FOR=$(BUILD_ON)

# Cross-compiling is currently not supported.
# Maybe you can hack something with `local.conf`.
ifneq ($(BUILD_ON),$(BUILD_FOR))
    $(error "I don't know how to build for $(BUILD_FOR) on $(BUILD_ON).")
endif

# Installation path prefix for libraries and binaries, except for HTML files
PREFIX=/usr

# Installation path for HTML files
HTML_DIRECTORY=$(PREFIX)/share/pEp/json-adapter/html

# Filename of the pEp JSON Server Adapter binary
TARGET=pEp-mini-json-adapter

# Filename of the pEp JSON Server Adapter testing binary
TARGET_TEST=servertest

# Filename of the unittest binary
TARGET_GTEST=unittests

# If empty, create a release build.
# Otherwise, create a debug build.
# This variable is ineffective in your local.conf file.
DEBUG=placeholder

# If empty, suppress compiler warnings.
# Otherwise, print warnings.
# This variable is ineffective in your local.conf file.
WARN=placeholder


######### C++ #########
TARGET_ARCH=

ifeq ($(BUILD_FOR),Linux)
    CXX=g++ -std=c++11 -pthread -fPIC
else ifeq ($(BUILD_FOR),Darwin)
    # clang issues a warning when "-pthread" is used for linking. So, include it in CXXFLAGS, and not in CXX
    # "c++" != "clang"
    CXX=c++ -std=c++11 -fPIC
endif

HTML_DIR ?= "html"

CPPFLAGS=-isystem $(GTEST_DIR)/include -DHTML_DIR=$(HTML_DIR)

ifeq ($(BUILD_FOR),Linux)
    CXXFLAGS=-fstack-protector-all -fdiagnostics-color=always
    ifdef WARN
        CXXFLAGS+= -Wall
    else
        CXXFLAGS+= -w
    endif
    ifdef DEBUG
        CXXFLAGS+= -O0 -g -ggdb -DDEBUG_ENABLED
    else
        CXXFLAGS+= -O3 -DNDEBUG
    endif
else ifeq ($(BUILD_FOR),Darwin)
    CXXFLAGS=-pthread -fstack-protector-all -fcolor-diagnostics
    ifdef WARN
        CXXFLAGS+= -Wall
    else
        CXXFLAGS+= -w
    endif
    ifdef DEBUG
        CXXFLAGS+= -O0 -g -DDEBUG_ENABLED
    else
        CXXFLAGS+= -O3 -DNDEBUG
    endif
endif

CXXFLAGS+= -Ijson_spirit $(BOOST_INC) $(ENGINE_INC) $(ETPAN_INC) $(EVENT_INC) $(GPGME_INC) $(UUID_INC)
LDFLAGS+=                $(BOOST_LIB) $(ENGINE_LIB) $(ETPAN_LIB) $(EVENT_LIB) $(GPGME_LIB) $(UUID_LIB)
ifeq ($(BUILD_FOR),Linux)
    LDLIBS+= -levent -lpEpEngine -lpEpAdapter -lboost_system    -lboost_filesystem    -lboost_program_options    -lboost_thread    -Wl,-rpath-link="$(patsubst -L%,%,$(ETPAN_LIB))"
    GTEST_DIR=/usr/src/googletest/googletest/
else ifeq ($(BUILD_FOR),Darwin)
    LDLIBS+= -levent -lpEpEngine -lpEpAdapter -lboost_system-mt -lboost_filesystem-mt -lboost_program_options-mt -lboost_thread-mt
endif

######### Google Test #########
#GTEST_DIR=


######### boost #########
BOOST_INC=
BOOST_LIB=


######### Engine #########
ENGINE_INC=-I$(HOME)/code/engine/build/include
ENGINE_LIB=-L$(HOME)/code/engine/build/lib


######### Etpan #########
ETPAN_INC=-I$(HOME)/code/libetpan/build/include
ETPAN_LIB=-L$(HOME)/code/libetpan/build/lib


######### Event #########
EVENT_INC=-I$(HOME)/code/libevent-2.0.22/build/include
EVENT_LIB=-L$(HOME)/code/libevent-2.0.22/build/lib


######### GPGME #########
GPGME_INC=
GPGME_LIB=


######### OSSP uuid #########
UUID_INC=
UUID_LIB=


######### Footer #########
-include $(HERE)/local.conf

ifdef BUILD_CONFIG
    -include $(BUILD_CONFIG)
endif