# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
"""
Copyright (c) 2014-2019,  The University of Memphis,
                          Regents of the University of California,
                          Arizona Board of Regents.

This file is part of NLSR (Named-data Link State Routing).
See AUTHORS.md for complete list of NLSR authors and contributors.

NLSR is free software: you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.

NLSR 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
NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
"""

VERSION = "0.5.0"
APPNAME = "nlsr"
BUGREPORT = "https://redmine.named-data.net/projects/nlsr"
URL = "https://named-data.net/doc/NLSR/"
GIT_TAG_PREFIX = "NLSR-"

from waflib import Logs, Utils, Context
import os, subprocess

def options(opt):
    opt.load(['compiler_cxx', 'gnu_dirs'])
    opt.load(['default-compiler-flags', 'coverage', 'sanitizers',
              'boost', 'doxygen', 'sphinx_build'],
             tooldir=['.waf-tools'])

    nlsropt = opt.add_option_group('NLSR Options')
    nlsropt.add_option('--with-tests', action='store_true', default=False, help='build unit tests')

def configure(conf):
    conf.load(['compiler_cxx', 'gnu_dirs',
               'default-compiler-flags', 'boost',
               'doxygen', 'sphinx_build'])

    if 'PKG_CONFIG_PATH' not in os.environ:
        os.environ['PKG_CONFIG_PATH'] = Utils.subst_vars('${LIBDIR}/pkgconfig', conf.env)

    conf.check_cfg(package='libndn-cxx', args=['--cflags', '--libs'],
                   uselib_store='NDN_CXX', mandatory=True)

    boost_libs = 'system chrono program_options iostreams thread regex filesystem log log_setup'
    if conf.options.with_tests:
        conf.env['WITH_TESTS'] = True
        conf.define('WITH_TESTS', 1)
        boost_libs += ' unit_test_framework'

    conf.check_boost(lib=boost_libs, mt=True)
    if conf.env.BOOST_VERSION_NUMBER < 105800:
        conf.fatal('Minimum required Boost version is 1.58.0\n'
                   'Please upgrade your distribution or manually install a newer version of Boost'
                   ' (https://redmine.named-data.net/projects/nfd/wiki/Boost_FAQ)')

    conf.check_cfg(package='ChronoSync', args=['--cflags', '--libs'],
                   uselib_store='SYNC', mandatory=True)

    conf.check_cfg(package='PSync', args=['--cflags', '--libs'],
                   uselib_store='PSYNC', mandatory=True)

    conf.check_compiler_flags()

    # Loading "late" to prevent tests from being compiled with profiling flags
    conf.load('coverage')

    conf.load('sanitizers')

    conf.write_config_header('config.hpp')

def build(bld):
    version(bld)

    bld(features='subst',
        name='version.hpp',
        source='src/version.hpp.in',
        target='src/version.hpp',
        VERSION_STRING=VERSION_BASE,
        VERSION_BUILD=VERSION,
        VERSION=int(VERSION_SPLIT[0]) * 1000000 +
                int(VERSION_SPLIT[1]) * 1000 +
                int(VERSION_SPLIT[2]),
        VERSION_MAJOR=VERSION_SPLIT[0],
        VERSION_MINOR=VERSION_SPLIT[1],
        VERSION_PATCH=VERSION_SPLIT[2])

    bld.objects(
        target='nlsr-objects',
        source=bld.path.ant_glob('src/**/*.cpp',
                                 excl=['src/main.cpp']),
        use='NDN_CXX BOOST SYNC PSYNC',
        includes='. src',
        export_includes='. src')

    bld.program(
        target='bin/nlsr',
        name='nlsr',
        source='src/main.cpp',
        use='nlsr-objects')

    bld.program(
        target='bin/nlsrc',
        name='nlsrc',
        source='tools/nlsrc.cpp',
        use='nlsr-objects')

    if bld.env.WITH_TESTS:
        bld.recurse('tests')

    bld.install_as('${SYSCONFDIR}/ndn/nlsr.conf.sample', 'nlsr.conf')

    if Utils.unversioned_sys_platform() == 'linux':
        bld(features='subst',
            name='nlsr.service',
            source='systemd/nlsr.service.in',
            target='systemd/nlsr.service')

    if bld.env.SPHINX_BUILD:
        bld(features='sphinx',
            name='manpages',
            builder='man',
            config='docs/conf.py',
            outdir='docs/manpages',
            source=bld.path.ant_glob('docs/manpages/**/*.rst'),
            install_path='${MANDIR}',
            VERSION=VERSION)

def docs(bld):
    from waflib import Options
    Options.commands = ['doxygen', 'sphinx'] + Options.commands

def doxygen(bld):
    version(bld)

    if not bld.env.DOXYGEN:
        bld.fatal('Cannot build documentation ("doxygen" not found in PATH)')

    bld(features='subst',
        name='doxygen.conf',
        source=['docs/doxygen.conf.in',
                'docs/named_data_theme/named_data_footer-with-analytics.html.in'],
        target=['docs/doxygen.conf',
                'docs/named_data_theme/named_data_footer-with-analytics.html'],
        VERSION=VERSION,
        HTML_FOOTER='../build/docs/named_data_theme/named_data_footer-with-analytics.html' \
                        if os.getenv('GOOGLE_ANALYTICS', None) \
                        else '../docs/named_data_theme/named_data_footer.html',
        GOOGLE_ANALYTICS=os.getenv('GOOGLE_ANALYTICS', ''))

    bld(features='doxygen',
        doxyfile='docs/doxygen.conf',
        use='doxygen.conf')

def sphinx(bld):
    version(bld)

    if not bld.env.SPHINX_BUILD:
        bld.fatal('Cannot build documentation ("sphinx-build" not found in PATH)')

    bld(features='sphinx',
        config='docs/conf.py',
        outdir='docs',
        source=bld.path.ant_glob('docs/**/*.rst'),
        VERSION=VERSION)

def version(ctx):
    # don't execute more than once
    if getattr(Context.g_module, 'VERSION_BASE', None):
        return

    Context.g_module.VERSION_BASE = Context.g_module.VERSION
    Context.g_module.VERSION_SPLIT = VERSION_BASE.split('.')

    # first, try to get a version string from git
    gotVersionFromGit = False
    try:
        cmd = ['git', 'describe', '--always', '--match', '%s*' % GIT_TAG_PREFIX]
        out = subprocess.check_output(cmd, universal_newlines=True).strip()
        if out:
            gotVersionFromGit = True
            if out.startswith(GIT_TAG_PREFIX):
                Context.g_module.VERSION = out.lstrip(GIT_TAG_PREFIX)
            else:
                # no tags matched
                Context.g_module.VERSION = '%s-commit-%s' % (VERSION_BASE, out)
    except (OSError, subprocess.CalledProcessError):
        pass

    versionFile = ctx.path.find_node('VERSION')
    if not gotVersionFromGit and versionFile is not None:
        try:
            Context.g_module.VERSION = versionFile.read()
            return
        except EnvironmentError:
            pass

    # version was obtained from git, update VERSION file if necessary
    if versionFile is not None:
        try:
            if versionFile.read() == Context.g_module.VERSION:
                # already up-to-date
                return
        except EnvironmentError as e:
            Logs.warn('%s exists but is not readable (%s)' % (versionFile, e.strerror))
    else:
        versionFile = ctx.path.make_node('VERSION')

    try:
        versionFile.write(Context.g_module.VERSION)
    except EnvironmentError as e:
        Logs.warn('%s is not writable (%s)' % (versionFile, e.strerror))

def dist(ctx):
    version(ctx)

def distcheck(ctx):
    version(ctx)