# SPDX-FileCopyrightText: 2020 Foundation Devices, Inc. <hello@foundationdevices.com>
# SPDX-License-Identifier: GPL-3.0-or-later
#
# SPDX-FileCopyrightText: 2018 Coinkite, Inc. <coldcardwallet.com>
# SPDX-License-Identifier: GPL-3.0-only
#
# (c) Copyright 2018 by Coinkite Inc. This file is part of Coldcard <coldcardwallet.com>
# and is covered by GPLv3 license found in COPYING.
#
# version.py - Get lots of different version numbers from stuff.
#
# REMINDER: update simulator version of this file if API changes are made.
#

def get_mpy_version():
    # read my own file header
    # see stm32/bootloader/sigheader.h
    # from sigheader import FLASH_HEADER_BASE, FW_HEADER_SIZE, FWH_PY_FORMAT
    # import ustruct
    # import uctypes

    # try:
    #     # located in flash, but could also use RAM version
    #     hdr = uctypes.bytes_at(FLASH_HEADER_BASE, FW_HEADER_SIZE)

    #     magic_value, timestamp, version_string = ustruct.unpack_from(FWH_PY_FORMAT, hdr)[
    #         0:3]

    #     parts = ['%02x' % i for i in timestamp]
    #     date = '20' + '-'.join(parts[0:3])

    #     vers = bytes(version_string).rstrip(b'\0').decode()

    #     return date, vers, ''.join(parts[:-2])
    # except:
    #     # this is early in boot process, so don't fail!
    #     return '20YY-MM-DD', '?.??', '180731121314'
    return '2020-08-30', '0.1.0', '???'


# def get_header_value(fld_name):
#     # get a single value, raw, from header; based on field name
#     from sigheader import FLASH_HEADER_BASE, FW_HEADER_SIZE, FWH_PY_FORMAT, FWH_PY_VALUES
#     import ustruct
#     import uctypes

#     idx = FWH_PY_VALUES.split().index(fld_name)

#     hdr = uctypes.bytes_at(FLASH_HEADER_BASE, FW_HEADER_SIZE)

#     return ustruct.unpack_from(FWH_PY_FORMAT, hdr)[idx]


def is_devmode():
    # # what firmware signing key did we boot with? are we in dev mode?
    # from sigheader import RAM_HEADER_BASE, FWH_PK_NUM_OFFSET
    # import stm

    # # Important? Use the RAM version of this, not flash version!
    # kn = stm.mem32[RAM_HEADER_BASE + FWH_PK_NUM_OFFSET]

    # # For now, all keys are "production" except number zero, which will be made public
    # # - some other keys may be de-authorized and so on in the future
    # is_devmode = (kn == 0)

    # return is_devmode
    return False

# Boot loader needs to tell us stuff about how we were booted, sometimes:
# - did we just install a new version, for example
# - are we running in "factory mode" with flash un-secured?


def is_factory_mode():
    # from sigheader import RAM_BOOT_FLAGS, RBF_FACTORY_MODE
    # import stm
    # import callgate

    # is_factory = bool(stm.mem32[RAM_BOOT_FLAGS] & RBF_FACTORY_MODE)

    # bn = callgate.get_bag_number()
    # if bn:
    #     # this path supports testing/dev with RDP!=2, which normal production bootroms enforce
    #     is_factory = False

    # return is_factory
    return False

# EOF