#!/usr/bin/python
# Copyright (c) 2017-2018 ARM Limited
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import subprocess
import sys
import shutil
from argparse import ArgumentParser

ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir))
sys.path.insert(0, ROOT)
from tools.targets import Target, TARGET_MAP, TARGET_NAMES

MAKE_PY_LOCATTION = os.path.join(ROOT, 'tools', 'make.py')
TEST_PY_LOCATTION = os.path.join(ROOT, 'tools', 'test.py')
MBED_PSA_TESTS = '*psa-spm*,*psa-crypto_access_control'
TFM_MBED_APP = os.path.join(ROOT, 'tools', 'psa', 'tfm', 'mbed_app.json')
TFM_TESTS = {
    '*psa-spm_smoke': ['USE_PSA_TEST_PARTITIONS', 'USE_SMOKE_TESTS_PART1'],
    '*psa-spm_client': ['USE_PSA_TEST_PARTITIONS', 'USE_CLIENT_TESTS_PART1'],
    '*psa-spm_server': ['USE_PSA_TEST_PARTITIONS', 'USE_SERVER_TESTS_PART1', 'USE_SERVER_TESTS_PART2'],
    '*psa-crypto_access_control': ['USE_PSA_TEST_PARTITIONS', 'USE_CRYPTO_ACL_TEST']
}


def _psa_backend(target_name):
    return 'TFM' if 'TFM' in Target.get_target(target_name).labels else 'MBED_SPM'


def get_mbed_official_psa_release():
    psa_targets_release_list = []
    psa_secure_targets = [t for t in TARGET_NAMES if Target.get_target(t).is_PSA_secure_target]
    for t in psa_secure_targets:
        psa_targets_release_list.append(
            tuple(
                [
                    TARGET_MAP[t].name,
                    TARGET_MAP[t].default_toolchain
                ]
            )
        )

    return psa_targets_release_list


def create_mbed_ignore(build_dir):
    with open(os.path.join(build_dir, '.mbedignore'), 'w') as f:
        f.write('*\n')


def build_mbed_spm_platform(target, toolchain, profile='release'):
    subprocess.call([
        sys.executable, '-u', TEST_PY_LOCATTION,
        '--greentea',
        '--profile', profile,
        '-t', toolchain,
        '-m', target,
        '--source', ROOT,
        '--build', os.path.join(ROOT, 'BUILD', 'tests', target),
        '--test-spec', os.path.join(ROOT, 'BUILD', 'tests', target, 'test_spec.json'),
        '--build-data', os.path.join(ROOT, 'BUILD', 'tests', target, 'build_data.json'),
        '-n', MBED_PSA_TESTS
    ])

    subprocess.call([
        sys.executable, '-u', MAKE_PY_LOCATTION,
        '-t', toolchain,
        '-m', target,
        '--profile', profile,
        '--source', ROOT,
        '--build', os.path.join(ROOT, 'BUILD', target),
        '--artifact-name', 'psa_release_1.0'
    ])


def _tfm_test_defines(test):
    return ['-D{}'.format(define) for define in TFM_TESTS[test]]


def build_tfm_platform(target, toolchain, profile='release'):
    for test in TFM_TESTS.keys():
        subprocess.call([
            sys.executable, '-u', TEST_PY_LOCATTION,
            '--greentea',
            '--profile', profile,
            '-t', toolchain,
            '-m', target,
            '--source', ROOT,
            '--build', os.path.join(ROOT, 'BUILD', 'tests', target),
            '--test-spec', os.path.join(ROOT, 'BUILD', 'tests', target, 'test_spec.json'),
            '--build-data', os.path.join(ROOT, 'BUILD', 'tests', target, 'build_data.json'),
            '--app-config', TFM_MBED_APP, '-n', test] + _tfm_test_defines(test))

    subprocess.call([
        sys.executable, '-u', MAKE_PY_LOCATTION,
        '-t', toolchain,
        '-m', target,
        '--profile', profile,
        '--source', ROOT,
        '--build', os.path.join(ROOT, 'BUILD', target),
        '--app-config', TFM_MBED_APP
    ])


def build_psa_platform(target, toolchain, debug=False):
    profile = 'debug' if debug else 'release'
    if _psa_backend(target) is 'TFM':
        build_tfm_platform(target, toolchain, profile)
    else:
        build_mbed_spm_platform(target, toolchain, profile)


def get_parser():
    parser = ArgumentParser()
    parser.add_argument("-m", "--mcu",
                        help="build for the given MCU",
                        default='*',
                        metavar="MCU")

    parser.add_argument("-d", "--debug",
                        help="build for the given MCU",
                        action="store_true",
                        default=False)

    return parser


def filter_target(mcu):
    def filter_func(t):
        return t[0] == mcu

    return filter_func


def main():
    parser = get_parser()
    options = parser.parse_args()
    build_dir = os.path.join(ROOT, 'BUILD')
    if os.path.exists(build_dir):
        shutil.rmtree(build_dir)

    os.makedirs(build_dir)
    create_mbed_ignore(build_dir)
    target_filter_function = None
    psa_platforms_list = get_mbed_official_psa_release()

    if options.mcu is not '*':
        target_filter_function = filter_target(options.mcu)

    for target, toolchain in filter(target_filter_function, psa_platforms_list):
        build_psa_platform(target, toolchain, options.debug)


if __name__ == '__main__':
    main()