#!/usr/bin/env python

import os
import subprocess

from waflib import Logs, Options
from waflib.extras import autowaf

# Library and package version (UNIX style major, minor, micro)
# major increment <=> incompatible changes
# minor increment <=> compatible changes (additions)
# micro increment <=> no interface changes
SRATOM_VERSION       = '0.6.3'
SRATOM_MAJOR_VERSION = '0'

# Mandatory waf variables
APPNAME = 'sratom'        # Package name for waf dist
VERSION = SRATOM_VERSION  # Package version for waf dist
top     = '.'             # Source directory
out     = 'build'         # Build directory

def options(ctx):
    ctx.load('compiler_c')
    ctx.add_flags(
        ctx.configuration_options(),
        {'static':    'build static library',
         'no-shared': 'do not build shared library'})

def configure(conf):
    conf.load('compiler_c', cache=True)
    conf.load('autowaf', cache=True)
    autowaf.set_c_lang(conf, 'c99')

    conf.env.BUILD_SHARED = not Options.options.no_shared
    conf.env.BUILD_STATIC = Options.options.static

    if not conf.env.BUILD_SHARED and not conf.env.BUILD_STATIC:
        conf.fatal('Neither a shared nor a static build requested')

    autowaf.check_pkg(conf, 'lv2', uselib_store='LV2',
                      atleast_version='1.16.0', mandatory=True)
    autowaf.check_pkg(conf, 'serd-0', uselib_store='SERD',
                      atleast_version='0.30.0', mandatory=True)
    autowaf.check_pkg(conf, 'sord-0', uselib_store='SORD',
                      atleast_version='0.14.0', mandatory=True)

    autowaf.set_lib_env(conf, 'sratom', SRATOM_VERSION)
    conf.write_config_header('sratom_config.h', remove=False)

    autowaf.display_summary(conf, {'Unit tests': bool(conf.env.BUILD_TESTS)})

lib_source = ['src/sratom.c']

def build(bld):
    # C Headers
    includedir = '${INCLUDEDIR}/sratom-%s/sratom' % SRATOM_MAJOR_VERSION
    bld.install_files(includedir, bld.path.ant_glob('sratom/*.h'))

    # Pkgconfig file
    autowaf.build_pc(bld, 'SRATOM', SRATOM_VERSION, SRATOM_MAJOR_VERSION,
                     ['SERD', 'SORD', 'LV2'],
                     {'SRATOM_MAJOR_VERSION' : SRATOM_MAJOR_VERSION})

    libflags = ['-fvisibility=hidden']
    libs     = ['m']
    defines  = []
    if bld.env.MSVC_COMPILER:
        libflags = []
        libs     = []
        defines  = []

    # Shared Library
    if bld.env.BUILD_SHARED:
        obj = bld(features        = 'c cshlib',
                  export_includes = ['.'],
                  source          = lib_source,
                  includes        = ['.', './src'],
                  lib             = libs,
                  name            = 'libsratom',
                  target          = 'sratom-%s' % SRATOM_MAJOR_VERSION,
                  vnum            = SRATOM_VERSION,
                  install_path    = '${LIBDIR}',
                  defines         = defines + ['SRATOM_SHARED', 'SRATOM_INTERNAL'],
                  cflags          = libflags)
        autowaf.use_lib(bld, obj, 'SERD SORD LV2')

    # Static library
    if bld.env.BUILD_STATIC:
        obj = bld(features        = 'c cstlib',
                  export_includes = ['.'],
                  source          = lib_source,
                  includes        = ['.', './src'],
                  lib             = libs,
                  name            = 'libsratom_static',
                  target          = 'sratom-%s' % SRATOM_MAJOR_VERSION,
                  vnum            = SRATOM_VERSION,
                  install_path    = '${LIBDIR}',
                  defines         = defines + ['SRATOM_INTERNAL'])
        autowaf.use_lib(bld, obj, 'SERD SORD LV2')

    if bld.env.BUILD_TESTS:
        test_libs   = libs
        test_cflags = ['']
        test_linkflags  = ['']
        if not bld.env.NO_COVERAGE:
            test_cflags    += ['--coverage']
            test_linkflags += ['--coverage']

        # Static library (for unit test code coverage)
        obj = bld(features     = 'c cstlib',
                  source       = lib_source,
                  includes     = ['.', './src'],
                  lib          = test_libs,
                  name         = 'libsratom_profiled',
                  target       = 'sratom_profiled',
                  install_path = '',
                  defines      = defines + ['SRATOM_INTERNAL'],
                  cflags       = test_cflags,
                  linkflags    = test_linkflags)
        autowaf.use_lib(bld, obj, 'SERD SORD LV2')

        # Unit test program
        obj = bld(features     = 'c cprogram',
                  source       = 'tests/sratom_test.c',
                  includes     = ['.', './src'],
                  use          = 'libsratom_profiled',
                  lib          = test_libs,
                  target       = 'sratom_test',
                  install_path = '',
                  defines      = defines,
                  cflags       = test_cflags,
                  linkflags    = test_linkflags)

        autowaf.use_lib(bld, obj, 'SERD SORD LV2')

    # Documentation
    autowaf.build_dox(bld, 'SRATOM', SRATOM_VERSION, top, out)

    bld.add_post_fun(autowaf.run_ldconfig)
    if bld.env.DOCS:
        bld.add_post_fun(fix_docs)

def test(tst):
    tst(['./sratom_test'])

def lint(ctx):
    "checks code for style issues"
    import subprocess
    cmd = ("clang-tidy -p=. -header-filter=.* -checks=\"*," +
           "-bugprone-suspicious-string-compare," +
           "-clang-analyzer-alpha.*," +
           "-hicpp-signed-bitwise," +
           "-llvm-header-guard," +
           "-readability-else-after-return\" " +
           "$(find .. -name '*.c')")
    subprocess.call(cmd, cwd='build', shell=True)

def fix_docs(ctx):
    if ctx.cmd == 'build':
        autowaf.make_simple_dox(APPNAME)

def upload_docs(ctx):
    os.system("rsync -ravz --delete -e ssh build/doc/html/ drobilla@drobilla.net:~/drobilla.net/docs/sratom/")

def posts(ctx):
    path = str(ctx.path.abspath())
    autowaf.news_to_posts(
        os.path.join(path, 'NEWS'),
        {'title'        : 'Sratom',
         'description'  : autowaf.get_blurb(os.path.join(path, 'README')),
         'dist_pattern' : 'http://download.drobilla.net/sratom-%s.tar.bz2'},
        { 'Author' : 'drobilla',
          'Tags'   : 'Hacking, LAD, LV2, RDF, Sratom' },
        os.path.join(out, 'posts'))