# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
#
# 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 sys
import subprocess
import multiprocessing
import math
import platform
import inspect
#import paddle
#import paddle.fluid
import json
import argparse
import shutil
import re
import logging
"""
please make sure to run in the tools path
usage: python sample_test.py {arg1} 
arg1: the first arg defined running in gpu version or cpu version

for example, you can run cpu version python2 testing like this:

    python sampcd_processor.py cpu 

"""

logger = logging.getLogger()
if logger.handlers:
    console = logger.handlers[
        0]  # we assume the first handler is the one we want to configure
else:
    console = logging.StreamHandler()
    logger.addHandler(console)
console.setFormatter(logging.Formatter("%(message)s"))

RUN_ON_DEVICE = 'cpu'
GPU_ID = 0
methods = []
whl_error = []
API_DEV_SPEC_FN = 'paddle/fluid/API_DEV.spec'
API_PR_SPEC_FN = 'paddle/fluid/API_PR.spec'
API_DIFF_SPEC_FN = 'dev_pr_diff_api.spec'
SAMPLECODE_TEMPDIR = 'samplecode_temp'


def find_all(srcstr, substr):
    """
    to find all desired substring in the source string
     and return their starting indices as a list

    Args:
        srcstr(str): the parent string
        substr(str): substr

    Returns:
        list: a list of the indices of the substrings
              found
    """
    indices = []
    gotone = srcstr.find(substr)
    while (gotone != -1):
        indices.append(gotone)
        gotone = srcstr.find(substr, gotone + 1)
    return indices


def check_indent(cdline):
    """
    to check the indent of a given code line

    to get the number of starting blank chars,
    e.t. blankspaces and \t

    \t will be interpreted as 4 single blankspaces,
    e.t. '\t'='    '

    Args:
        cdline(str) : a single line of code from the source file

    Returns:
        int : the indent of the number of interpreted
             blankspaces
    """
    indent = 0
    for c in cdline:
        if c == '\t':
            indent += 4
        elif c == ' ':
            indent += 1
        if c != ' ' and c != '\t':
            break
    return indent


# srccom: raw comments in the source,including ''' and original indent
def sampcd_extract_and_run(srccom, name, htype="def", hname=""):
    """
    Extract and run sample codes from source comment and
    the result will be returned.

    Args:
        srccom(str): the source comment of some API whose
                     example codes will be extracted and run.
        name(str): the name of the API.
        htype(str): the type of hint banners, def/class/method.
        hname(str): the name of the hint  banners , e.t. def hname.

    Returns:
        result: True or False
        name(str): the name of the API.
        msg(str): messages
    """
    sample_code_filenames = sampcd_extract_to_file(srccom, name, htype, hname)
    if not sample_code_filenames:
        return False, name, 'No sample code!'

    results = []
    msgs = []
    for tfname in sample_code_filenames:
        result, msg = execute_samplecode_test(tfname)
        results.append(result)
        msgs.append(msg)

    if not all(results):
        failed_fn = []
        for i, result in enumerate(results):
            if not result:
                failed_fn.append(sample_code_filenames[i])
        return False, name, 'failed sample codes: ' + ','.join(failed_fn)
    return True, name, 'success!'


def sampcd_extract_to_file(srccom, name, htype="def", hname=""):
    """
    Extract sample codes from __doc__, and write them to files.

    Args:
        srccom(str): the source comment of some API whose
                     example codes will be extracted and run.
        name(str): the name of the API.
        htype(str): the type of hint banners, def/class/method.
        hname(str): the name of the hint  banners , e.t. def hname.

    Returns:
        sample_code_filenames(list of str)
    """
    global GPU_ID, RUN_ON_DEVICE, SAMPLECODE_TEMPDIR

    sampcd_begins = find_all(srccom, " code-block:: python")
    if len(sampcd_begins) == 0:
        # detect sample codes using >>> to format and consider this situation as wrong
        print(htype, " name:", hname)
        print("-----------------------")
        if srccom.find("Examples:") != -1:
            print("----example code check----\n")
            if srccom.find(">>>") != -1:
                print(
                    "Deprecated sample code style:\n\n    Examples:\n\n        >>>codeline\n        >>>codeline\n\n\n ",
                    "Please use '.. code-block:: python' to ",
                    "format sample code.\n")
                return []
        else:
            print("Error: No sample code!\n")
            return []
    sample_code_filenames = []
    for y in range(1, len(sampcd_begins) + 1):
        sampcd_begin = sampcd_begins[y - 1]
        sampcd = srccom[sampcd_begin + len(" code-block:: python") + 1:]
        sampcd = sampcd.split("\n")
        # remove starting empty lines
        while sampcd[0].replace(' ', '').replace('\t', '') == '':
            sampcd.pop(0)

        # the minimum indent, which is the indent of the first
        # non-empty line
        min_indent = check_indent(sampcd[0])
        sampcd_to_write = []
        for i in range(0, len(sampcd)):
            cdline = sampcd[i]
            # handle empty lines or those only with spaces/tabs
            if cdline.strip() == '':
                continue
            this_indent = check_indent(cdline)
            if this_indent < min_indent:
                break
            else:
                cdline = cdline.replace('\t', '    ')
                sampcd_to_write.append(cdline[min_indent:])

        sampcd = '\n'.join(sampcd_to_write)
        if RUN_ON_DEVICE == "cpu":
            sampcd = '\nimport os\nos.environ["CUDA_VISIBLE_DEVICES"] = ""\n' + sampcd
        if RUN_ON_DEVICE == "gpu":
            sampcd = '\nimport os\nos.environ["CUDA_VISIBLE_DEVICES"] = "{}"\n'.format(
                GPU_ID) + sampcd
        sampcd += '\nprint(' + '\"' + name + ' sample code is executed successfully!\")'

        tfname = os.path.join(SAMPLECODE_TEMPDIR, '{}_example{}'.format(
            name, '.py' if len(sampcd_begins) == 1 else '_{}.py'.format(y)))
        with open(tfname, 'w') as tempf:
            tempf.write(sampcd)
        sample_code_filenames.append(tfname)
    return sample_code_filenames


def execute_samplecode_test(tfname):
    result = True
    msg = None
    if platform.python_version()[0] in ["2", "3"]:
        cmd = [sys.executable, tfname]
    else:
        print("Error: fail to parse python version!")
        result = False
        exit(1)

    logging.info('running %s', tfname)
    print("\n----example code check----")
    print("executing sample code .....", tfname)
    subprc = subprocess.Popen(
        cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    output, error = subprc.communicate()
    msg = "".join(output.decode(encoding='utf-8'))
    err = "".join(error.decode(encoding='utf-8'))

    if subprc.returncode != 0:
        print("Sample code error found in ", tfname, ":")
        print("-----------------------")
        print(open(tfname).read())
        print("-----------------------")
        print("subprocess return code: ", str(subprc.returncode))
        print("Error Raised from Sample Code ", tfname, " :")
        print(err)
        print(msg)
        print("----example code check failed----\n")
        logging.warning('%s error: %s', tfname, err)
        logging.warning('%s msg: %s', tfname, msg)
        result = False
    else:
        print("----example code check success----\n")

    # msg is the returned code execution report

    return result, tfname, msg


def single_defcom_extract(start_from, srcls, is_class_begin=False):
    """
    to extract a def function/class/method comments body

    Args:
        start_from(int): the line num of "def" header
        srcls(list): the source file in lines
        is_class_begin(bool): whether the start_from is a beginning a class. \
        For a sole class body itself may end up with its method if it has no
        docstring. But the body of \
        a common def function can only be ended up by a none-indented def/class

    Returns:
        string : the extracted comment body, inclusive of its quote marks.

    """

    i = start_from
    fcombody = ""  # def comment body
    comstart = -1  # the starting line index of comment mark "'''" or """"""
    # if it is not -1, it indicates the loop is in the comment body
    comstyle = 0  # comment mark style ,comments quoted with ''' is coded as 1
    # comments quoted with """ is coded as 2
    for x in range(i + 1, len(srcls)):
        if is_class_begin:
            if srcls[x].replace('\t', '    ').startswith('    def '):
                break
        if srcls[x].startswith('def ') or srcls[x].startswith('class '):
            break
        else:
            if comstart == -1:
                s = srcls[x].replace(" ", '').replace("\t",
                                                      '').replace("\n", '')
                if s.startswith("\"\"\"") or s.startswith("r\"\"\""):
                    comstart = x
                    comstyle = 2
                    continue
            if (comstyle == 2 and comstart != -1 and
                    srcls[x].replace(" ", '').replace("\t", '').replace(
                        "\n", '').startswith("\"\"\"")):
                break
            if comstart == -1:
                s = srcls[x].replace(" ", '').replace("\t",
                                                      '').replace("\n", '')
                if s.startswith("\'\'\'") or s.startswith("r\'\'\'"):
                    comstart = x
                    comstyle = 1
                    continue
            if (comstyle == 1 and comstart != -1 and
                    srcls[x].replace(" ", '').replace("\t", '').replace(
                        "\n", '').startswith("\'\'\'")):
                break
            if (comstart !=
                    -1):  # when the comments start, begin to add line to fcombody
                fcombody += srcls[x]
    return fcombody


def srccoms_extract(srcfile, wlist, methods):
    """
    Given a source file ``srcfile``, this function will
    extract its API(doc comments) and run sample codes in the
    API.

    Args:
        srcfile(file): the source file
        wlist(list): white list
        methods(list): only elements of this list considered.

    Returns:
        result: True or False
        error_methods: the methods that failed.
    """

    process_result = True
    error_methods = []
    srcc = srcfile.read()
    # 2. get defs and classes header line number
    # set file pointer to its beginning
    srcfile.seek(0, 0)
    srcls = srcfile.readlines()  # source lines

    # 1. fetch__all__ list
    allidx = srcc.find("__all__")
    logger.debug('processing %s, methods: %s', srcfile.name, str(methods))
    srcfile_new, _ = os.path.splitext(srcfile.name)
    srcfile_list = srcfile_new.split('/')
    srcfile_str = ''
    for i in range(4, len(srcfile_list)):
        srcfile_str = srcfile_str + srcfile_list[i] + '.'
    if allidx != -1:
        alllist = []
        # get all list for layers/ops.py
        if srcfile.name.find("fluid/layers/ops.py") != -1:
            for ai in range(0, len(srcls)):
                if srcls[ai].startswith("__all__"):
                    lb = srcls[ai].find('[')
                    rb = srcls[ai].find(']')
                    if lb == -1:
                        continue
                    allele = srcls[ai][lb + 1:rb].replace("'", '').replace(
                        " ", '').replace("\"", '')
                    alllist.append(allele)
            if '' in alllist:
                alllist.remove('')
        else:
            alllist_b = allidx + len("__all__")
            allstr = srcc[alllist_b + srcc[alllist_b:].find("[") + 1:alllist_b +
                          srcc[alllist_b:].find("]")]
            allstr = allstr.replace("\n", '').replace(" ", '').replace(
                "'", '').replace("\"", '')
            alllist = allstr.split(',')
            if '' in alllist:
                alllist.remove('')
        api_alllist_count = len(alllist)
        logger.debug('found %d items: %s', api_alllist_count, str(alllist))
        api_count = 0
        handled = []
        # get src contents in layers/ops.py
        if srcfile.name.find("fluid/layers/ops.py") != -1:
            for i in range(0, len(srcls)):
                opname = None
                opres = re.match(r"^(\w+)\.__doc__", srcls[i])
                if opres is not None:
                    opname = opres.group(1)
                else:
                    opres = re.match(
                        r"^add_sample_code\(globals\(\)\[\"(\w+)\"\]", srcls[i])
                    if opres is not None:
                        opname = opres.group(1)
                if opname is not None:
                    if opname in wlist:
                        logger.info('%s is in the whitelist, skip it.', opname)
                        continue
                    else:
                        logger.debug('%s\'s docstring found.', opname)
                    comstart = i
                    for j in range(i, len(srcls)):
                        if srcls[j].find("\"\"\"") != -1:
                            comstart = i
                    opcom = ""
                    for j in range(comstart + 1, len(srcls)):
                        opcom += srcls[j]
                        if srcls[j].find("\"\"\"") != -1:
                            break
                    result, _, _ = sampcd_extract_and_run(opcom, opname, "def",
                                                          opname)
                    if not result:
                        error_methods.append(opname)
                        process_result = False
                    api_count += 1
                    handled.append(
                        opname)  # ops.py also has normal formatted functions
                    # use list 'handled'  to mark the functions have been handled here
                    # which will be ignored in the following step
                    # handled what?
        logger.debug('%s already handled.', str(handled))
        for i in range(0, len(srcls)):
            if srcls[i].startswith(
                    'def '):  # a function header is detected in line i
                f_header = srcls[i].replace(" ", '')
                fn = f_header[len('def'):f_header.find('(')]  # function name
                if "%s%s" % (srcfile_str, fn) not in methods:
                    logger.info(
                        '[file:%s, function:%s] not in methods list, skip it.',
                        srcfile_str, fn)
                    continue
                if fn in handled:
                    continue
                if fn in alllist:
                    api_count += 1
                    if fn in wlist or fn + "@" + srcfile.name in wlist:
                        logger.info('[file:%s, function:%s] skip by wlist.',
                                    srcfile_str, fn)
                        continue
                    fcombody = single_defcom_extract(i, srcls)
                    if fcombody == "":  # if no comment
                        print("def name:", fn)
                        print("-----------------------")
                        print("WARNING: no comments in function ", fn,
                              ", but it deserves.")
                        continue
                    else:
                        result, _, _ = sampcd_extract_and_run(fcombody, fn,
                                                              "def", fn)
                        if not result:
                            error_methods.append(fn)
                            process_result = False

            if srcls[i].startswith('class '):
                c_header = srcls[i].replace(" ", '')
                cn = c_header[len('class'):c_header.find('(')]  # class name
                if '%s%s' % (srcfile_str, cn) not in methods:
                    logger.info(
                        '[file:%s, class:%s] not in methods list, skip it.',
                        srcfile_str, cn)
                    continue
                if cn in handled:
                    continue
                if cn in alllist:
                    api_count += 1
                    if cn in wlist or cn + "@" + srcfile.name in wlist:
                        logger.info('[file:%s, class:%s] skip by wlist.',
                                    srcfile_str, cn)
                        continue
                    # class comment
                    classcom = single_defcom_extract(i, srcls, True)
                    if classcom != "":
                        result, _, _ = sampcd_extract_and_run(classcom, cn,
                                                              "class", cn)
                        if not result:
                            error_methods.append(cn)
                            process_result = False
                    else:
                        print("WARNING: no comments in class itself ", cn,
                              ", but it deserves.\n")
                    # handling methods in class bodies
                    for x in range(
                            i + 1,
                            len(srcls)):  # from the next line of class header
                        if (srcls[x].startswith('def ') or
                                srcls[x].startswith('class ')):
                            break
                        else:
                            # member method def header
                            srcls[x] = srcls[x].replace('\t', '    ')
                            if (srcls[x].startswith(
                                    '    def ')):  # detect a mehtod header..
                                thisl = srcls[x]
                                indent = len(thisl) - len(thisl.lstrip())
                                mn = thisl[indent + len('def '):thisl.find(
                                    '(')]  # method name
                                name = cn + "." + mn  # full name
                                if '%s%s' % (
                                        srcfile_str, name
                                ) not in methods:  # class method not in api.spec 
                                    logger.info(
                                        '[file:%s, func:%s] not in methods, skip it.',
                                        srcfile_str, name)
                                    continue
                                if mn.startswith('_'):
                                    logger.info(
                                        '[file:%s, func:%s] startswith _, it\'s private method, skip it.',
                                        srcfile_str, name)
                                    continue
                                if name in wlist or name + "@" + srcfile.name in wlist:
                                    logger.info(
                                        '[file:%s, class:%s] skip by wlist.',
                                        srcfile_str, name)
                                    continue
                                thismethod = [thisl[indent:]
                                              ]  # method body lines
                                # get all the lines of a single method body
                                # into thismethod(list)
                                # and send it to single_defcom_extract
                                for y in range(x + 1, len(srcls)):
                                    srcls[y] = srcls[y].replace('\t', '    ')
                                    if (srcls[y].startswith('def ') or
                                            srcls[y].startswith('class ')):
                                        # end of method
                                        break
                                    elif srcls[y].startswith('    def '):
                                        # end of method
                                        break
                                    else:
                                        thismethod.append(srcls[y][indent:])
                                thismtdcom = single_defcom_extract(0,
                                                                   thismethod)
                                if thismtdcom != "":
                                    result, _, _ = sampcd_extract_and_run(
                                        thismtdcom, name, "method", name)
                                    if not result:
                                        error_methods.append(name)
                                        process_result = False
    else:
        logger.warning('__all__ not found in file:%s', srcfile.name)

    return process_result, error_methods


def test(file_list):
    global methods  # readonly
    process_result = True
    for file in file_list:
        with open(file, 'r') as src:
            if not srccoms_extract(src, wlist, methods):
                process_result = False
    return process_result


def run_a_test(tc_filename):
    """
    execute a sample code-block.
    """
    global methods  # readonly
    process_result = True
    with open(tc_filename, 'r') as src:
        process_result, error_methods = srccoms_extract(src, wlist, methods)
    return process_result, tc_filename, error_methods


def get_filenames():
    '''
    this function will get the sample code files that pending for check.

    Returns:

        dict: the sample code files pending for check .

    '''
    global methods  # write
    global whl_error
    import paddle
    whl_error = []
    get_incrementapi()
    all_sample_code_filenames = {}
    with open(API_DIFF_SPEC_FN) as f:
        for line in f.readlines():
            api = line.replace('\n', '')
            try:
                api_obj = eval(api)
            except AttributeError:
                whl_error.append(api)
                continue
            except SyntaxError:
                logger.warning('line:%s, api:%s', line, api)
                # paddle.Tensor.<lambda>
                continue
            if hasattr(api_obj, '__doc__') and api_obj.__doc__:
                sample_code_filenames = sampcd_extract_to_file(api_obj.__doc__,
                                                               api)
                for tfname in sample_code_filenames:
                    all_sample_code_filenames[tfname] = api
    return all_sample_code_filenames


def get_api_md5(path):
    api_md5 = {}
    API_spec = '%s/%s' % (os.path.abspath(os.path.join(os.getcwd(), "..")),
                          path)
    pat = re.compile(r'\((paddle[^,]+)\W*document\W*([0-9a-z]{32})')
    patArgSpec = re.compile(
        r'^(paddle[^,]+)\s+\(ArgSpec.*document\W*([0-9a-z]{32})')
    with open(API_spec) as f:
        for line in f.readlines():
            mo = pat.search(line)
            if not mo:
                mo = patArgSpec.search(line)
            if mo:
                api_md5[mo.group(1)] = mo.group(2)
    return api_md5


def get_incrementapi():
    '''
    this function will get the apis that difference between API_DEV.spec and API_PR.spec.
    '''
    global API_DEV_SPEC_FN, API_PR_SPEC_FN, API_DIFF_SPEC_FN  ## readonly
    dev_api = get_api_md5(API_DEV_SPEC_FN)
    pr_api = get_api_md5(API_PR_SPEC_FN)
    with open(API_DIFF_SPEC_FN, 'w') as f:
        for key in pr_api:
            if key in dev_api:
                if dev_api[key] != pr_api[key]:
                    logger.debug("%s in dev is %s, different from pr's %s", key,
                                 dev_api[key], pr_api[key])
                    f.write(key)
                    f.write('\n')
            else:
                logger.debug("%s is not in dev", key)
                f.write(key)
                f.write('\n')


def get_wlist(fn="wlist.json"):
    '''
    this function will get the white list of API.

    Returns:

        wlist: a list of API that should not trigger the example check .

    '''
    wlist = []
    wlist_file = []
    # only white on CPU
    gpu_not_white = []
    with open(fn, 'r') as load_f:
        load_dict = json.load(load_f)
        for key in load_dict:
            if key == 'wlist_dir':
                for item in load_dict[key]:
                    wlist_file.append(item["name"])
            elif key == "gpu_not_white":
                gpu_not_white = load_dict[key]
            elif key == "wlist_api":
                for item in load_dict[key]:
                    wlist.append(item["name"])
            else:
                wlist = wlist + load_dict[key]
    return wlist, wlist_file, gpu_not_white


arguments = [
    # flags, dest, type, default, help
    ['--gpu_id', 'gpu_id', int, 0, 'GPU device id to use [0]'],
    ['--logf', 'logf', str, None, 'file for logging'],
    ['--threads', 'threads', int, 0, 'sub processes number'],
]


def parse_args():
    """
    Parse input arguments
    """
    global arguments
    parser = argparse.ArgumentParser(description='run Sample Code Test')
    # parser.add_argument('--cpu', dest='cpu_mode', action="store_true",
    #                     help='Use CPU mode (overrides --gpu)')
    # parser.add_argument('--gpu', dest='gpu_mode', action="store_true")
    parser.add_argument('--debug', dest='debug', action="store_true")
    parser.add_argument('mode', type=str, help='run on device', default='cpu')
    for item in arguments:
        parser.add_argument(
            item[0], dest=item[1], help=item[4], type=item[2], default=item[3])

    if len(sys.argv) == 1:
        args = parser.parse_args(['cpu'])
        return args
    #    parser.print_help()
    #    sys.exit(1)

    args = parser.parse_args()
    return args


if __name__ == '__main__':
    args = parse_args()
    if args.debug:
        logger.setLevel(logging.DEBUG)
    if args.logf:
        logfHandler = logging.FileHandler(args.logf)
        logfHandler.setFormatter(
            logging.Formatter(
                "%(asctime)s - %(funcName)s:%(lineno)d - %(levelname)s - %(message)s"
            ))
        logger.addHandler(logfHandler)

    wlist, wlist_file, gpu_not_white = get_wlist()

    if args.mode == "gpu":
        GPU_ID = args.gpu_id
        logger.info("using GPU_ID %d", GPU_ID)
        for _gnw in gpu_not_white:
            wlist.remove(_gnw)
    elif args.mode != "cpu":
        logger.error("Unrecognized argument:%s, 'cpu' or 'gpu' is desired.",
                     args.mode)
        sys.exit("Invalid arguments")
    RUN_ON_DEVICE = args.mode
    logger.info("API check -- Example Code")
    logger.info("sample_test running under python %s",
                platform.python_version())

    if os.path.exists(SAMPLECODE_TEMPDIR):
        if not os.path.isdir(SAMPLECODE_TEMPDIR):
            os.remove(SAMPLECODE_TEMPDIR)
            os.mkdir(SAMPLECODE_TEMPDIR)
    else:
        os.mkdir(SAMPLECODE_TEMPDIR)

    filenames = get_filenames()
    if len(filenames) == 0 and len(whl_error) == 0:
        logger.info("-----API_PR.spec is the same as API_DEV.spec-----")
        exit(0)
    logger.info("API_PR is diff from API_DEV: %s", filenames)

    threads = multiprocessing.cpu_count()
    if args.threads:
        threads = args.threads
    po = multiprocessing.Pool(threads)
    # results = po.map_async(test, divided_file_list)
    results = po.map_async(execute_samplecode_test, filenames.keys())
    po.close()
    po.join()

    result = results.get()

    # delete temp files
    if not args.debug:
        shutil.rmtree(SAMPLECODE_TEMPDIR)

    logger.info("----------------End of the Check--------------------")
    if len(whl_error) != 0:
        logger.info("%s is not in whl.", whl_error)
        logger.info("")
        logger.info("Please check the whl package and API_PR.spec!")
        logger.info("You can follow these steps in order to generate API.spec:")
        logger.info("1. cd ${paddle_path}, compile paddle;")
        logger.info("2. pip install build/python/dist/(build whl package);")
        logger.info(
            "3. run 'python tools/print_signatures.py paddle > paddle/fluid/API.spec'."
        )
        for temp in result:
            if not temp[0]:
                logger.info("In addition, mistakes found in sample codes: %s",
                            temp[1])
                logger.info("error_methods: %s", str(temp[2]))
        logger.info("----------------------------------------------------")
        exit(1)
    else:
        has_error = False
        for temp in result:
            if not temp[0]:
                logger.info("In addition, mistakes found in sample codes: %s",
                            temp[1])
                logger.info("error_methods: %s", str(temp[2]))
                has_error = True
        if has_error:
            logger.info("Mistakes found in sample codes.")
            logger.info("Please check sample codes.")
            exit(1)
    logger.info("Sample code check is successful!")