#!/usr/bin/env python3
# Copyright (c) 2020-2025 Valve Corporation
# Copyright (c) 2020-2025 LunarG, Inc.

# 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 subprocess
import sys
import os
import argparse
import common_ci

# Where all artifacts will ultimately be placed under
CI_BUILD_DIR = common_ci.RepoRelative('build-ci')
# Where all dependencies will be installed under
CI_EXTERNAL_DIR = f'{CI_BUILD_DIR}/external'
# Where all repos will install to
CI_INSTALL_DIR = f'{CI_BUILD_DIR}/install'

#
# Prepare the Validation Layers for testing
def BuildVVL(config, cmake_args, build_tests, mock_android):
    print("Log CMake version")
    cmake_ver_cmd = 'cmake --version'
    common_ci.RunShellCmd(cmake_ver_cmd)

    SRC_DIR = common_ci.PROJECT_SRC_DIR
    BUILD_DIR = f'{CI_BUILD_DIR}/vvl'

    print("Configure VVL")
    cmake_cmd = f'cmake -S {SRC_DIR} -B {BUILD_DIR}'
    cmake_cmd += f' -D CMAKE_BUILD_TYPE={config}'
    cmake_cmd += f' -D BUILD_TESTS={build_tests}'
    cmake_cmd += f' -D UPDATE_DEPS=ON -D UPDATE_DEPS_DIR={CI_EXTERNAL_DIR}'
    cmake_cmd += ' -D BUILD_WERROR=ON'
    cmake_cmd += ' -D INSTALL_VVL_TEST_ICD=ON'

    if cmake_args:
         cmake_cmd += f' {cmake_args}'

    if mock_android:
         cmake_cmd += ' -DVVL_MOCK_ANDROID=ON'

    common_ci.RunShellCmd(cmake_cmd)

    print("Build VVL")
    build_cmd = f'cmake --build {BUILD_DIR}'
    common_ci.RunShellCmd(build_cmd)

    print("Install VVL")
    install_cmd = f'cmake --install {BUILD_DIR} --prefix {CI_INSTALL_DIR}'
    common_ci.RunShellCmd(install_cmd)

#
# Prepare Loader for executing Layer Validation Tests
def BuildLoader():
    SRC_DIR = f'{CI_EXTERNAL_DIR}/Vulkan-Loader'
    BUILD_DIR = f'{SRC_DIR}/build'

    if not os.path.exists(SRC_DIR):
        print("Unable to find Vulkan-Loader")
        sys.exit(1)

    print("Run CMake for Loader")
    cmake_cmd = f'cmake -S {SRC_DIR} -B {BUILD_DIR}'
    cmake_cmd += ' -D UPDATE_DEPS=ON -D CMAKE_BUILD_TYPE=Release'

    # GitHub actions runs our test as admin on Windows
    if common_ci.IsGHA() and common_ci.IsWindows():
        cmake_cmd += ' -D LOADER_USE_UNSAFE_FILE_SEARCH=ON'

    common_ci.RunShellCmd(cmake_cmd)

    print("Build Loader")
    build_cmd = f'cmake --build {BUILD_DIR}'
    common_ci.RunShellCmd(build_cmd)

    print("Install Loader")
    install_cmd = f'cmake --install {BUILD_DIR} --prefix {CI_INSTALL_DIR}'
    common_ci.RunShellCmd(install_cmd)

#
# Prepare Profile Layer for use with Layer Validation Tests
def BuildProfileLayer(mockAndroid):
    SRC_DIR = f'{CI_EXTERNAL_DIR}/Vulkan-Profiles'
    BUILD_DIR = f'{SRC_DIR}/build'

    if not os.path.exists(SRC_DIR):
        print("Unable to find Vulkan-Profiles")
        sys.exit(1)

    print("Run CMake for Profile Layer")
    cmake_cmd = f'cmake -S {SRC_DIR} -B {BUILD_DIR}'
    cmake_cmd += ' -D CMAKE_BUILD_TYPE=Release'
    cmake_cmd += ' -D UPDATE_DEPS=ON'
    if mockAndroid:
        cmake_cmd += ' -DBUILD_MOCK_ANDROID_SUPPORT=ON'
    common_ci.RunShellCmd(cmake_cmd)

    print("Build Profile Layer")
    build_cmd = f'cmake --build {BUILD_DIR}'
    common_ci.RunShellCmd(build_cmd)

    print("Install Profile Layer")
    install_cmd = f'cmake --install {BUILD_DIR} --prefix {CI_INSTALL_DIR}'
    common_ci.RunShellCmd(install_cmd)

#
# Module Entrypoint
def Build(args):
    config = args.configuration

    # Since this script uses Ninja to build Windows users need to be in a developer command prompt.
    if common_ci.IsWindows():
        # This environment variable is arbitrary. I just picked one set by the developer command prompt.
        if "VSCMD_ARG_TGT_ARCH" not in os.environ:
            print("This script must be invoked in a developer command prompt!")
            sys.exit(1)

    try:
        BuildVVL(config = config, cmake_args = args.cmake, build_tests = "ON", mock_android = args.mockAndroid)
        BuildLoader()
        BuildProfileLayer(args.mockAndroid)

    except subprocess.CalledProcessError as proc_error:
        print('Command "%s" failed with return code %s' % (' '.join(proc_error.cmd), proc_error.returncode))
        sys.exit(proc_error.returncode)
    except Exception as unknown_error:
        print('An unknown error occured: %s', unknown_error)
        sys.exit(1)

    sys.exit(0)

#
# Run the Layer Validation Tests
def RunVVLTests(args):
    print("Run VVL Tests using Mock ICD")

    lvt_env = dict(os.environ)

    # Needed for undefined behavior sanitizor to actually cause program to fail.
    lvt_env['UBSAN_OPTIONS'] = 'abort_on_error=1:halt_on_error=1'

    # Because we installed everything to CI_INSTALL_DIR all the libraries/json files are in pre-determined locations
    # defined by GNUInstallDirs. This makes setting VK_LAYER_PATH and other environment variables trivial/robust.
    if common_ci.IsWindows():
        lvt_env['VK_LAYER_PATH'] = os.path.join(CI_INSTALL_DIR, 'bin')
        lvt_env['VK_DRIVER_FILES'] = os.path.join(CI_INSTALL_DIR, 'bin\\VVL_Test_ICD.json')
    else:
        lvt_env['LD_LIBRARY_PATH'] = os.path.join(CI_INSTALL_DIR, 'lib')
        lvt_env['DYLD_LIBRARY_PATH'] = os.path.join(CI_INSTALL_DIR, 'lib')
        lvt_env['VK_LAYER_PATH'] = os.path.join(CI_INSTALL_DIR, 'share/vulkan/explicit_layer.d')
        lvt_env['VK_DRIVER_FILES'] = os.path.join(CI_INSTALL_DIR, 'share/vulkan/icd.d/VVL_Test_ICD.json')

    # This enables better stack traces from tools like leak sanitizer by using the loader feature which prevents unloading of libraries at shutdown.
    lvt_env['VK_LOADER_DISABLE_DYNAMIC_LIBRARY_UNLOADING'] = '1'

    # Useful for debugging
    # lvt_env['VK_LOADER_DEBUG'] = 'error,warn,info'
    # lvt_env['VK_LAYER_TESTS_PRINT_DRIVER'] = '1'

    lvt_env['VK_INSTANCE_LAYERS'] = 'VK_LAYER_KHRONOS_validation' + os.pathsep + 'VK_LAYER_KHRONOS_profiles'
    lvt_env['VK_KHRONOS_PROFILES_SIMULATE_CAPABILITIES'] = 'SIMULATE_API_VERSION_BIT,SIMULATE_FEATURES_BIT,SIMULATE_PROPERTIES_BIT,SIMULATE_EXTENSIONS_BIT,SIMULATE_FORMATS_BIT,SIMULATE_QUEUE_FAMILY_PROPERTIES_BIT,SIMULATE_VIDEO_CAPABILITIES_BIT,SIMULATE_VIDEO_FORMATS_BIT'

    # By default use the max_profile.json
    if "VK_KHRONOS_PROFILES_PROFILE_FILE" not in os.environ:
        lvt_env['VK_KHRONOS_PROFILES_PROFILE_FILE'] = common_ci.RepoRelative('tests/device_profiles/max_profile.json')

    # By default set portability to false
    if "VK_KHRONOS_PROFILES_EMULATE_PORTABILITY" not in os.environ:
        lvt_env['VK_KHRONOS_PROFILES_EMULATE_PORTABILITY'] = 'false'

    lvt_env['VK_KHRONOS_PROFILES_DEBUG_REPORTS'] = 'DEBUG_REPORT_ERROR_BIT'
    lvt_env['VK_KHRONOS_PROFILES_UNKNOWN_FEATURE_VALUES'] = 'UNKNOWN_FEATURE_VALUES_DEVICE'

    lvt_cmd = os.path.join(CI_INSTALL_DIR, 'bin', 'vk_layer_validation_tests')

    if args.mockAndroid:
        # TODO - only reason running this subset, is mockAndoid fails any test that does
        # a manual vkCreateDevice call and need to investigate more why
        common_ci.RunShellCmd(lvt_cmd + " --gtest_filter=*AndroidHardwareBuffer.*:*AndroidExternalResolve.*", env=lvt_env)
        return
    if args.tsan and args.wsi:
        # Combo of both below
        common_ci.RunShellCmd(f'xvfb-run --auto-servernum {lvt_cmd} --gtest_filter=*Wsi.*', env=lvt_env)
        return
    if args.tsan:
        # These are tests we have decided are worth using Thread Sanitize as it will take about 9x longer to run a test
        # We have also seen TSAN turn bug out and make each test incrementally take longer
        # (https://github.com/KhronosGroup/Vulkan-ValidationLayers/issues/8931)
        common_ci.RunShellCmd(lvt_cmd + " --gtest_filter=*SyncVal.*:*Threading.*:*SyncObject.*:-*Video*", env=lvt_env)
        return
    if args.wsi:
        # We need to use xvfb to get github action runners to be able to create a surface context
        # Adding to other tests is a slow, unnecessary, overheader
        common_ci.RunShellCmd(f'xvfb-run --auto-servernum {lvt_cmd} --gtest_filter=*Wsi.*', env=lvt_env)
        return

    # these will 100% be skipped by default on CI machine, save time filtering them out first
    skip_list = [
        # AHB as it is ran separately
        '*AndroidHardwareBuffer.*',
        '*AndroidExternalResolve.*',
        # WSI as it is ran separately
        '*Wsi.*'
    ]
    # The "default" run
    common_ci.RunShellCmd(f'{lvt_cmd} --gtest_filter=-{":".join(skip_list)}', env=lvt_env)

    print("Re-Running syncval tests with core validation disabled (--syncval-disable-core)")
    common_ci.RunShellCmd(lvt_cmd + ' --gtest_filter=*SyncVal* --syncval-disable-core', env=lvt_env)

    print("Re-Running multithreaded tests with VK_LAYER_FINE_GRAINED_LOCKING disabled")
    lvt_env['VK_LAYER_FINE_GRAINED_LOCKING'] = '0'
    common_ci.RunShellCmd(lvt_cmd + ' --gtest_filter=*Thread*', env=lvt_env)

def Test(args):
    try:
        RunVVLTests(args)

    except subprocess.CalledProcessError as proc_error:
        print('Command "%s" failed with return code %s' % (' '.join(proc_error.cmd), proc_error.returncode))
        sys.exit(proc_error.returncode)
    except Exception as unknown_error:
        print('An unknown error occured: %s', unknown_error)
        sys.exit(1)

    sys.exit(0)

if __name__ == '__main__':
    configs = ['release', 'debug']
    default_config = configs[0]

    parser = argparse.ArgumentParser()
    parser.add_argument(
        '-c', '--config', dest='configuration',
        metavar='CONFIG', action='store',
        choices=configs, default=default_config,
        help='Build target configuration. Can be one of: {0}'.format(
            ', '.join(configs)))
    parser.add_argument(
        '--cmake', dest='cmake',
        metavar='CMAKE', type=str,
        default='', help='Additional args to pass to cmake')
    parser.add_argument(
        '--build', dest='build',
        action='store_true', help='Build the layers')
    parser.add_argument(
        '--test', dest='test',
        action='store_true', help='Tests the layers')
    parser.add_argument(
        '--mockAndroid', dest='mockAndroid',
        action='store_true', help='Use Mock Android')
    parser.add_argument(
        '--tsan', dest='tsan',
        action='store_true', help='Filter out tests for TSAN')
    parser.add_argument(
        '--wsi', dest='wsi',
        action='store_true', help='Filter out tests for WSI (which uses xvfb and will slow down other tests)')

    args = parser.parse_args()

    if (args.build):
        Build(args)
    if (args.test):
        Test(args)