#!/usr/bin/env python
# encoding: utf-8
# Copyright (c) 2013-2017 GomSpace A/S. All rights reserved.

import gs_gcc
import gs_doc
from waflib.Build import BuildContext

APPNAME = 'gscsp'


def libcsp_with_os(ctx):
    if ctx.gs_is_linux():
        return 'posix'
    if ctx.gs_is_freertos():
        return 'freertos'
    return None


def libcsp_with_driver_usart(ctx):
    if ctx.gs_is_linux():
        return 'linux'
    return None


def options(ctx):
    ctx.load('gs_gcc gs_doc')
    gs_gcc.gs_recurse(ctx)


def configure(ctx):
    ctx.load('gs_gcc gs_doc')

    ctx.env.append_unique('FILES_GSCSP', 'src/*.c')
    ctx.env.append_unique('USE_GSCSP', ['csp', 'csp_h', 'util'])

    if ctx.options.enable_if_i2c:
        ctx.env.append_unique('FILES_GSCSP', 'src/drivers/i2c/*.c')

    if ctx.gs_is_freertos():
        ctx.env.append_unique('FILES_GSCSP', 'src/drivers/can/*.c')
        ctx.env.append_unique('FILES_GSCSP', 'src/drivers/kiss/*.c')
        ctx.env.append_unique('FILES_GSCSP', 'src/freertos/*.c')
        ctx.env.append_unique('USE_GSCSP', ['embed'])

    if ctx.gs_is_linux():
        ctx.env.append_unique('FILES_GSCSP', 'src/linux/*.c')

    # libcsp options
    ctx.options.with_os = libcsp_with_os(ctx)
    ctx.options.with_driver_usart = libcsp_with_driver_usart(ctx)
    bindings = True if (ctx.gs_is_linux() and not ctx.gs_is_build_disabled(['shlib', 'csp_shlib'])) else False
    ctx.options.enable_bindings = bindings
    ctx.options.enable_python3_bindings = bindings
    ctx.options.disable_stlib = True
    ctx.options.enable_crc32 = True
    ctx.options.with_connection_so = ctx.options.with_connection_so | 0x0040  # always CRC32, disable CSP_O_NOCRC32

    if ctx.options.enable_if_can and ctx.options.enable_can_socketcan:
        ctx.check_cc(lib='socketcan', mandatory=True)

    ctx.gs_add_doxygen(input=['include', 'lib/libcsp/include'])

    gs_gcc.gs_recurse(ctx)


def build(ctx):
    gs_gcc.gs_recurse(ctx)

    public_include = ctx.gs_include(name=APPNAME,
                                    includes=['include'])

    ctx.gs_objects(source=ctx.path.ant_glob(ctx.env.FILES_GSCSP),
                   target=APPNAME,
                   use=ctx.env.USE_GSCSP + [public_include])

    ctx.gs_shlib(source=ctx.path.ant_glob(ctx.env.FILES_GSCSP),
                 target=APPNAME,
                 gs_prefix='',  # make library libgscsp
                 gs_use_shlib=ctx.env.USE_GSCSP + [public_include])

    ctx.gs_python_bindings(source=ctx.path.ant_glob('src/bindings/python/pygscsp.c'),
                           target=APPNAME,
                           gs_prefix='',  # make library libgscsp
                           gs_use_shlib=ctx.env.USE_GSCSP + [APPNAME, public_include],
                           package='libgscsp')


def doc(ctx):
    gs_doc.add_task_library_doc(ctx, keyvalues={
        'gs_prod_name': 'lib'+APPNAME,
        'gs_prod_desc': 'GomSpace CSP extension',
    })


class Doc(BuildContext):
    cmd = fun = 'doc'


def gs_dist(ctx):
    gs_gcc.gs_recurse(ctx)
    ctx.add_default_files(source_module=True)
    ctx.add_files(ctx.path.ant_glob(['lib/libcsp/**/*']))
    ctx.add_license_file("CSP", "lib/libcsp/COPYING")