# Copyright (c) OpenAI (https://openai.com)

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# ============================================================================
import contextlib
import faulthandler
import io
import multiprocessing
import os
import platform
import signal
import random
import subprocess
import tempfile
import gzip
import json
from typing import *

def dicts_to_jsonl(data_list: list, filename: str, compress: bool = True) -> None:
    """
    Method saves list of dicts into jsonl file.
    :param data: (list) list of dicts to be stored,
    :param filename: (str) path to the output file. If suffix .jsonl is not given then methods appends
        .jsonl suffix into the file.
    :param compress: (bool) should file be compressed into a gzip archive?
    """
    sjsonl = '.jsonl'
    sgz = '.gz'
    # Check filename
    if not filename.endswith(sjsonl):
        filename = filename + sjsonl
    # Save data
    
    if compress:
        filename = filename + sgz
        with gzip.open(filename, 'w') as compressed:
            for ddict in data_list:
                jout = json.dumps(ddict) + '\n'
                jout = jout.encode('utf-8')
                compressed.write(jout)
    else:
        with open(filename, 'w') as out:
            for ddict in data_list:
                jout = json.dumps(ddict) + '\n'
                out.write(jout)


def unsafe_execute(tmp_dir, language_type, timeout, sample, result, task_id):
    random_id = random.uniform(1, 1000)
    if "python" in language_type.lower():
        with create_tempdir():

            # These system calls are needed when cleaning up tempdir.
            import os
            import shutil
            rmtree = shutil.rmtree
            rmdir = os.rmdir
            chdir = os.chdir

            # Disable functionalities that can make destructive changes to the test.
            reliability_guard()

            try:
                exec_globals = {}
                with swallow_io():
                    with time_limit(timeout):
                        # WARNING
                        # This program exists to execute untrusted model-generated code. Although
                        # it is highly unlikely that model-generated code will do something overtly
                        # malicious in response to this test suite, model-generated code may act
                        # destructively due to a lack of model capability or alignment.
                        # Users are strongly encouraged to sandbox this evaluation suite so that it
                        # does not perform destructive actions on their host or network.
                        # Once you have read this disclaimer and taken appropriate precautions,
                        # uncomment the following line and proceed at your own risk:
                        exec(sample["test_code"], exec_globals)
                    result.append("passed")
            except TimeoutException:
                result.append("timed out")
            except AssertionError as e:
                result.append(f"failed: AssertionError")
            except BaseException as e:
                result.append(f"failed: {e}")

            # Needed for cleaning up.
            shutil.rmtree = rmtree
            os.rmdir = rmdir
            os.chdir = chdir

    elif "go" in language_type.lower():
        assert tmp_dir is not None, "Go should be evaluated in a dir where necessary module files installed."

        import os
        import shutil

        if "tmp" not in tmp_dir:
            tmp_dir = os.path.join(tmp_dir, "tmp")
        tmp_dir = os.path.join(tmp_dir, f"{task_id.replace('/', '-')}-{random_id}")
        if not os.path.exists(tmp_dir):
            os.makedirs(tmp_dir)

        # os.chdir(tmp_dir)
        open(os.path.join(tmp_dir, "main_test.go"), 'w').write(sample["test_code"])
        try:
            exec_result = None
            with time_limit(timeout):
                # WARNING
                # This program exists to execute untrusted model-generated code. Although
                # it is highly unlikely that model-generated code will do something overtly
                # malicious in response to this test suite, model-generated code may act
                # destructively due to a lack of model capability or alignment.
                # Users are strongly encouraged to sandbox this evaluation suite so that it
                # does not perform destructive actions on their host or network.
                # Once you have read this disclaimer and taken appropriate precautions,
                # uncomment the following line and proceed at your own risk:
                 exec_result = subprocess.run(["go", "test", f"-timeout={timeout}s", os.path.join(tmp_dir, "main_test.go")], timeout=timeout, capture_output=True)

            if exec_result.returncode == 0:
                result.append("passed")
            else:
                if exec_result.stderr:
                    try:
                        err = exec_result.stderr.decode()
                    except:
                        err = exec_result.stderr
                else:
                    try:
                        err = exec_result.stdout.decode()
                    except:
                        err = exec_result.stdout
                result.append(f"failed: {err}")

        except TimeoutException:
            result.append("timed out")

        shutil.rmtree(tmp_dir)
    elif "js" in language_type.lower():
        import os
        import shutil

        if "tmp" not in tmp_dir:
            tmp_dir = os.path.join(tmp_dir, "tmp")
        tmp_dir = os.path.join(tmp_dir, f"{task_id.replace('/', '-')}-{random_id}")
        if not os.path.exists(tmp_dir):
            os.makedirs(tmp_dir)

        # os.chdir(tmp_dir)
        open(os.path.join(tmp_dir, "test.js"), 'w').write(sample["test_code"])
        try:
            exec_result = None
            with time_limit(timeout):
                # WARNING
                # This program exists to execute untrusted model-generated code. Although
                # it is highly unlikely that model-generated code will do something overtly
                # malicious in response to this test suite, model-generated code may act
                # destructively due to a lack of model capability or alignment.
                # Users are strongly encouraged to sandbox this evaluation suite so that it
                # does not perform destructive actions on their host or network.
                # Once you have read this disclaimer and taken appropriate precautions,
                # uncomment the following line and proceed at your own risk:
                 exec_result = subprocess.run(["node", os.path.join(tmp_dir, "test.js")], timeout=timeout, capture_output=True)

            if exec_result.stderr.decode():
                err = exec_result.stderr.decode()
                result.append(f"failed: {err}")
            elif exec_result.stdout.decode():
                err = exec_result.stdout.decode()
                result.append(f"failed: {err}")
            else:
                result.append("passed")

        except TimeoutException:
            result.append("timed out")

        shutil.rmtree(tmp_dir)
    elif "cpp" in language_type.lower():
        import os
        import shutil

        if "tmp" not in tmp_dir:
            tmp_dir = os.path.join(tmp_dir, "tmp")
        tmp_dir = os.path.join(tmp_dir, f"{task_id.replace('/', '-')}-{random_id}")
        if not os.path.exists(tmp_dir):
            os.makedirs(tmp_dir)

        # os.chdir(tmp_dir)
        open(os.path.join(tmp_dir, "test.cpp"), 'w').write(sample["test_code"])
        # if "162" in task_id:
        #     compilation_result = subprocess.run(["/usr/bin/g++", "-std=c++11", os.path.join(tmp_dir, "test.cpp"), "-lcrypto", "-lssl"],
        #                                         timeout=timeout,
        #                                         capture_output=True)
        # else:
        #     compilation_result = subprocess.run(["/usr/bin/g++", "-std=c++11", os.path.join(tmp_dir, "test.cpp")], timeout=timeout,
        #                                         capture_output=True)
        compilation_result = subprocess.run(["/usr/bin/g++", "-std=c++11", os.path.join(tmp_dir, "test.cpp")], timeout=timeout,
                                                capture_output=True)
        if compilation_result.returncode != 0:
            if compilation_result.stderr:
                err = compilation_result.stderr.decode()
            else:
                err = compilation_result.stdout.decode()
            result.append(f"failed: compilation error: {err}")
        else:
            try:
                exec_result = None
                with time_limit(timeout):
                    # WARNING
                    # This program exists to execute untrusted model-generated code. Although
                    # it is highly unlikely that model-generated code will do something overtly
                    # malicious in response to this test suite, model-generated code may act
                    # destructively due to a lack of model capability or alignment.
                    # Users are strongly encouraged to sandbox this evaluation suite so that it
                    # does not perform destructive actions on their host or network.
                    # Once you have read this disclaimer and taken appropriate precautions,
                    # uncomment the following line and proceed at your own risk:
                     exec_result = subprocess.run(["./a.out"], timeout=timeout, capture_output=True)

                if exec_result.returncode == 0:
                    result.append("passed")
                else:
                    if exec_result.stderr:
                        try:
                            err = exec_result.stderr.decode()
                        except:
                            err = exec_result.stderr
                    else:
                        try:
                            err = exec_result.stdout.decode()
                        except:
                            err = exec_result.stdout
                    result.append(f"failed: {err}")
            except TimeoutException:
                result.append("timed out")

        shutil.rmtree(tmp_dir)
    elif "rust" in language_type.lower():
        import os

        WD: str = os.path.dirname(os.path.abspath(__file__))
        RUST_DIR: str = os.path.join(WD, "rust")
        RUST_SRC: str = os.path.join(RUST_DIR, "src")
        RUST_BIN: str = os.path.join(RUST_SRC, "bin")
        RUST_TMP_DIR: str = os.path.join(RUST_DIR, "tmp")
        RUST_LOGS: str = os.path.join(RUST_TMP_DIR, "logs")
        RUST_EXT: str = ".rs"

        # Create mandatory tmp directories
        os.makedirs(RUST_TMP_DIR, exist_ok=True)
        os.makedirs(RUST_LOGS, exist_ok=True)
        os.makedirs(RUST_SRC, exist_ok=True)
        os.makedirs(RUST_BIN, exist_ok=True)

        with tempfile.NamedTemporaryFile(dir=RUST_BIN, delete=False) as f:
            # temporal file name
            file_prefix = sample["task_id"].lower().replace("/", "_")
            file_name: str = file_prefix + RUST_EXT

            os.rename(f.name, os.path.join(RUST_BIN, file_name))

            # Sample to pure Rust function
            rust_code: str = sample["test_code"]

            # dump the rust source code in the target temporal file
            f.write(rust_code.encode('utf-8'))

        # Proceed towards Rust binaries compilation. Therefore move to Rust module root dir.
        os.chdir(RUST_DIR)

        # Two possible outcomes
        # Pass OR Fail compilation
        log_filename: str = file_prefix + ".jsonl"
        log_path: str = os.path.join(RUST_LOGS, log_filename)
        cargo_check: str = "cargo check --bin " + file_prefix + " --message-format json >> " + log_path
        # Compilation build status
        returned_val_compilation: int

        # Overwrite file content
        if os.path.exists(log_path):
            if(file_size := os.path.getsize(log_path)) >= 0:
                os.remove(log_path)
                returned_val_compilation = os.system(cargo_check)

        else:
            returned_val_compilation = os.system(cargo_check)

        # 0 means success
        if returned_val_compilation == 0:
            # Execution pipeline
            cargo_test: str = "cargo test --bin " + file_prefix + " --message-format json >> " + log_path
            returned_val_execution = os.system(cargo_test)

            if returned_val_execution == 0:
                result.append("passed")
            else:
                result.append(f"failed: execution error")

        else:
            result.append(f"failed: compilation error")

    elif "java" in language_type.lower():
        assert tmp_dir is not None, "Java should be evaluated in a temporary dir."

        import os
        import shutil

        if "tmp" not in tmp_dir:
            tmp_dir = os.path.join(tmp_dir, "tmp")
        tmp_dir = os.path.join(tmp_dir, f"{task_id.replace('/', '-')}-{random_id}")
        if not os.path.exists(tmp_dir):
            os.makedirs(tmp_dir)

        # os.chdir(tmp_dir)
        open(os.path.join(tmp_dir, "Main.java"), 'w').write(sample["test_code"])
        res = "failed: unknown error"
        compile_returncode = -1
        for _ in range(5):
            try:
                compilation_result = subprocess.run(['javac', os.path.join(tmp_dir, "Main.java")], timeout=5,
                                                    capture_output=True)
                compile_returncode = compilation_result.returncode
                break
            except subprocess.TimeoutExpired as e:
                continue
        if compile_returncode != 0:
            res = "failed: compilation error"
        else:
            exec_result = None
            try:
                # WARNING
                # This program exists to execute untrusted model-generated code. Although
                # it is highly unlikely that model-generated code will do something overtly
                # malicious in response to this test suite, model-generated code may act
                # destructively due to a lack of model capability or alignment.
                # Users are strongly encouraged to sandbox this evaluation suite so that it
                # does not perform destructive actions on their host or network.
                # Once you have read this disclaimer and taken appropriate precautions,
                # uncomment the following line and proceed at your own risk:
                exec_result = subprocess.run([f'java', '-cp', tmp_dir, 'Main'], timeout=timeout, capture_output=True)
                if exec_result.returncode == 0:
                    res = "passed"
                elif exec_result.returncode == 1:
                    if "AssertionError" in exec_result.stderr.decode('unicode-escape'):
                        res = "failed: wrong answer"
                    else:
                        res = f"failed: {exec_result.stderr.decode()}"
            except subprocess.TimeoutExpired as e:
                res = "time out"
            except BaseException as e:
                res = f"failed: {e}"
        result.append(res)
        shutil.rmtree(tmp_dir)


def check_correctness(
        task_id: str,
        sample: dict,
        language_type: str,
        timeout: float = 3.0,
        tmp_dir: str = None,
        completion_id: Optional[int] = None,
) -> Dict:
    """
    Evaluates the functional correctness of a completion by running the test
    suite provided in the problem.
    """
        
    manager = multiprocessing.Manager()
    result = manager.list()

    p = multiprocessing.Process(target=unsafe_execute, args=(tmp_dir, language_type, timeout, sample, result, task_id,))
    p.start()
    p.join(timeout=timeout + 1)
    if p.is_alive():
        p.kill()

    if not result:
        result.append("timed out")

    return {
        "task_id": task_id,
        "completion_id": completion_id,
        "test_code": sample["test_code"],
        "prompt": sample["prompt"],
        "generation": sample["generation"],
        "result": result[0],
        "passed": result[0] == "passed",
        "finish": -1 if "finish" not in sample else sample["finish"],
        "file": "" if "file" not in sample else sample["file"],
        "output": [] if "output" not in sample else sample["output"],
    }


@contextlib.contextmanager
def time_limit(seconds: float):
    def signal_handler(signum, frame):
        raise TimeoutException("Timed out!")

    signal.setitimer(signal.ITIMER_REAL, seconds)
    signal.signal(signal.SIGALRM, signal_handler)
    try:
        yield
    finally:
        signal.setitimer(signal.ITIMER_REAL, 0)


@contextlib.contextmanager
def swallow_io():
    stream = WriteOnlyStringIO()
    with contextlib.redirect_stdout(stream):
        with contextlib.redirect_stderr(stream):
            with redirect_stdin(stream):
                yield


@contextlib.contextmanager
def create_tempdir():
    with tempfile.TemporaryDirectory() as dirname:
        with chdir(dirname):
            yield dirname


class TimeoutException(Exception):
    pass


class WriteOnlyStringIO(io.StringIO):
    """ StringIO that throws an exception when it's read from """

    def read(self, *args, **kwargs):
        raise IOError

    def readline(self, *args, **kwargs):
        raise IOError

    def readlines(self, *args, **kwargs):
        raise IOError

    def readable(self, *args, **kwargs):
        """ Returns True if the IO object can be read. """
        return False


class redirect_stdin(contextlib._RedirectStream):  # type: ignore
    _stream = 'stdin'


@contextlib.contextmanager
def chdir(root):
    if root == ".":
        yield
        return
    cwd = os.getcwd()
    os.chdir(root)
    try:
        yield
    except BaseException as exc:
        raise exc
    finally:
        os.chdir(cwd)


def reliability_guard(maximum_memory_bytes: Optional[int] = None):
    """
    This disables various destructive functions and prevents the generated code
    from interfering with the test (e.g. fork bomb, killing other processes,
    removing filesystem files, etc.)

    WARNING
    This function is NOT a security sandbox. Untrusted code, including, model-
    generated code, should not be blindly executed outside of one. See the 
    Codex paper for more information about OpenAI's code sandbox, and proceed
    with caution.
    """

    if maximum_memory_bytes is not None:
        import resource
        resource.setrlimit(resource.RLIMIT_AS, (maximum_memory_bytes, maximum_memory_bytes))
        resource.setrlimit(resource.RLIMIT_DATA, (maximum_memory_bytes, maximum_memory_bytes))
        if not platform.uname().system == 'Darwin':
            resource.setrlimit(resource.RLIMIT_STACK, (maximum_memory_bytes, maximum_memory_bytes))

    faulthandler.disable()

    import builtins
    builtins.exit = None
    builtins.quit = None

    import os
    os.environ['OMP_NUM_THREADS'] = '1'

    os.kill = None
    os.system = None
    os.putenv = None
    os.remove = None
    os.removedirs = None
    os.rmdir = None
    os.fchdir = None
    os.setuid = None
    os.fork = None
    os.forkpty = None
    os.killpg = None
    os.rename = None
    os.renames = None
    os.truncate = None
    os.replace = None
    os.unlink = None
    os.fchmod = None
    os.fchown = None
    os.chmod = None
    os.chown = None
    os.chroot = None
    os.fchdir = None
    os.lchflags = None
    os.lchmod = None
    os.lchown = None
    os.getcwd = None
    os.chdir = None

    import shutil
    shutil.rmtree = None
    shutil.move = None
    shutil.chown = None

    # import subprocess
    # subprocess.Popen = None  # type: ignore

    __builtins__['help'] = None

    import sys
    sys.modules['ipdb'] = None
    sys.modules['joblib'] = None
    sys.modules['resource'] = None
    sys.modules['psutil'] = None
    sys.modules['tkinter'] = None