# Copyright (c) 2018 Foundries.io
#
# SPDX-License-Identifier: Apache-2.0

'''Helpers shared by multiple west extension command modules.

Note that common helpers used by the flash and debug extension
commands are in run_common -- that's for common code used by
commands which specifically execute runners.'''

import os

from west import log
from west.commands import WestCommand

from runners.core import RunnerConfig


class Forceable(WestCommand):
    '''WestCommand subclass for commands with a --force option.'''

    def add_force_arg(self, parser):
        '''Add a -f / --force option to the parser.'''
        parser.add_argument('-f', '--force', action='store_true',
                            help='Ignore any errors and try to proceed')

    def check_force(self, cond, msg):
        '''Abort if the command needs to be forced and hasn't been.

        The "forced" predicate must be in self.args.forced.

        If cond and self.args.force are both False, scream and die
        with message msg. Otherwise, return. That is, "cond" is a
        condition which means everything is OK; if it's False, only
        self.args.force being True can allow execution to proceed.
        '''
        if not (cond or self.args.force):
            log.err(msg)
            log.die('refusing to proceed without --force due to above error')


def cached_runner_config(build_dir, cache):
    '''Parse the RunnerConfig from a build directory and CMake Cache.'''
    board_dir = cache['ZEPHYR_RUNNER_CONFIG_BOARD_DIR']
    elf_file = cache.get('ZEPHYR_RUNNER_CONFIG_ELF_FILE',
                         cache['ZEPHYR_RUNNER_CONFIG_KERNEL_ELF'])
    hex_file = cache.get('ZEPHYR_RUNNER_CONFIG_HEX_FILE',
                         cache['ZEPHYR_RUNNER_CONFIG_KERNEL_HEX'])
    bin_file = cache.get('ZEPHYR_RUNNER_CONFIG_BIN_FILE',
                         cache['ZEPHYR_RUNNER_CONFIG_KERNEL_BIN'])
    gdb = cache.get('ZEPHYR_RUNNER_CONFIG_GDB')
    openocd = cache.get('ZEPHYR_RUNNER_CONFIG_OPENOCD')
    openocd_search = cache.get('ZEPHYR_RUNNER_CONFIG_OPENOCD_SEARCH')

    return RunnerConfig(build_dir, board_dir,
                        elf_file, hex_file, bin_file,
                        gdb=gdb, openocd=openocd,
                        openocd_search=openocd_search)