import os
import sys

import waflib.Logs

from waflib.Configure import conf


@conf
def uses_dialog_bluetooth(ctx):
    return 'da14681' in ctx.env.bt_controller


def _recurse(ctx):
    if ctx.env.bt_controller == 'cc2564x':
        # TODO: replace with real FW
        ctx.recurse('stub')
    elif ctx.uses_dialog_bluetooth():
        # TODO: replace with real FW
        ctx.recurse('stub')
    elif ctx.env.bt_controller == 'qemu':
        ctx.recurse('qemu')
    else:
        ctx.fatal('Invalid bt controller {}'.format(ctx.env.bt_controller))


def options(opt):
    opt.add_option('--bt_controller', action='store', default=None,
                   help='Override Bluetooth controller to build for',
                   choices=['da14681-01', 'da14681-00', 'cc2564x', 'qemu'])


def configure(conf):
    prev_variant = conf.variant
    prev_env = conf.env

    if conf.options.bt_controller:
        bt = conf.options.bt_controller
        conf.env.bt_controller = bt
    else:
        # If option wasn't specified, assume main wscript has set env.bt_controller.
        # Act as if the option was set, so recurse'd wscripts can use the option.
        conf.options.bt_controller = conf.env.bt_controller

    waflib.Logs.pprint('CYAN', 'Using Bluetooth controller: {}'
                       .format(conf.env.bt_controller))
    _recurse(conf)

    conf.variant = prev_variant
    conf.env = prev_env


def build(bld):
    prev_env = bld.env
    _recurse(bld)
    bld.env = prev_env

# vim:filetype=python