Tos File Access

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# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
#
# 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 argparse
import logging
import os
import sys
from pathlib import Path
from typing import List, Optional
from urllib.parse import unquote, urlparse

import requests

# Configure logger
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)

if not logger.handlers:
    console_handler = logging.StreamHandler(sys.stdout)
    console_handler.setLevel(logging.INFO)
    formatter = logging.Formatter("%(message)s")
    console_handler.setFormatter(formatter)
    logger.addHandler(console_handler)


def file_download(
    url: List[str], save_dir: Optional[str] = None, filename: Optional[List[str]] = None
) -> List[str]:
    """
    Batch download files from the internet to local storage, supporting simultaneous download of multiple URLs to avoid agent loop calls

    Args:
        url: List of file URLs (can be a single-URL list or multiple URLs)
        save_dir: Save directory, defaults to /tmp
        filename: List of filenames to save; if None, filenames will be extracted from URLs

    Returns:
        List[str]: List of absolute paths to downloaded files

    Raises:
        requests.exceptions.RequestException: Network request failure
        IOError: File write failure
        ValueError: Parameter error

    Examples:
        # Download single file
        paths = file_download(["https://example.com/file.pdf"])

        # Batch download multiple files
        paths = file_download([
            "https://example.com/file1.pdf",
            "https://example.com/file2.jpg",
            "https://example.com/file3.json"
        ])
    """
    # Ensure url is a list
    if not isinstance(url, list):
        raise ValueError("url parameter must be a list")

    urls = url
    if save_dir is None:
        # Prefer environment variable
        save_dir = "/tmp"

    # Handle filename parameter
    if filename is None:
        filenames = [None] * len(urls)
    elif isinstance(filename, list):
        if len(filename) != len(urls):
            raise ValueError(
                f"filename list length ({len(filename)}) must match url list length ({len(urls)})"
            )
        filenames = filename
    else:
        raise ValueError("filename must be a list or None")

    # Download all files
    downloaded_paths = []
    for url_item, filename_item in zip(urls, filenames):
        path = _download_single_file(url_item, save_dir, filename_item)
        downloaded_paths.append(path)

    return downloaded_paths


def _download_single_file(
    url: str, save_dir: Optional[str] = None, filename: Optional[str] = None
) -> str:
    """
    Download a single file (internal helper function)

    Args:
        url: File URL
        save_dir: Save directory, defaults to /tmp
        filename: Filename to save

    Returns:
        str: Absolute path to downloaded file

    Raises:
        requests.exceptions.RequestException: Network request failure
        IOError: File write failure
    """
    # Determine save directory
    if save_dir is None:
        # Prefer environment variable
        save_dir = "/tmp"

    # Ensure save directory exists
    save_path = Path(save_dir)
    save_path.mkdir(parents=True, exist_ok=True)

    # Determine filename
    if filename is None:
        # Extract filename from URL
        parsed_url = urlparse(url)
        filename = unquote(os.path.basename(parsed_url.path))

        # If no filename in URL, use default name
        if not filename or filename == "/":
            filename = "downloaded_file"

    # Full file path
    full_path = save_path / filename

    # If file exists, add counter to avoid overwriting
    counter = 1
    original_stem = full_path.stem
    original_suffix = full_path.suffix
    while full_path.exists():
        filename = f"{original_stem}_{counter}{original_suffix}"
        full_path = save_path / filename
        counter += 1

    # Download file
    try:
        logger.info(f"Downloading: {url}")
        response = requests.get(url, stream=True, timeout=30)
        response.raise_for_status()

        # Write file
        with open(full_path, "wb") as f:
            for chunk in response.iter_content(chunk_size=8192):
                if chunk:
                    f.write(chunk)

        logger.info(f"Downloaded: {full_path}")
        return str(full_path.absolute())

    except requests.exceptions.RequestException as e:
        raise requests.exceptions.RequestException(f"Download failed: {str(e)}")
    except IOError as e:
        raise IOError(f"Write file failed: {str(e)}")


def main():
    """Command-line interface for file_download"""
    parser = argparse.ArgumentParser(
        description="Download files from URLs to local storage",
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
Examples:
  # Download single file
  python file_download.py https://example.com/file.pdf
  
  # Download multiple files
  python file_download.py https://example.com/file1.pdf https://example.com/file2.jpg
  
  # Download to specific directory
  python file_download.py https://example.com/file.pdf --save-dir /workspace
  
  # Download with custom filenames
  python file_download.py https://example.com/f1.pdf https://example.com/f2.jpg --filenames doc.pdf img.jpg
        """,
    )

    parser.add_argument("urls", nargs="+", help="One or more URLs to download")

    parser.add_argument(
        "--save-dir",
        type=str,
        default="/tmp",
        help="Directory to save downloaded files (default: /tmp)",
    )

    parser.add_argument(
        "--filenames",
        nargs="+",
        default=None,
        help="Custom filenames for downloaded files (must match number of URLs)",
    )

    args = parser.parse_args()

    try:
        # Call download function
        downloaded_paths = file_download(
            url=args.urls, save_dir=args.save_dir, filename=args.filenames
        )

        # Print results (one path per line for easy parsing)
        print("\n=== Downloaded Files ===")
        for path in downloaded_paths:
            print(path)

        sys.exit(0)

    except Exception as e:
        logger.error(f"Error: {e}")
        sys.exit(1)


# Example usage
if __name__ == "__main__":
    main()

# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
#
# 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.

"""
TOS file/directory upload utility
Provides functionality to upload files or directories to Volcano Engine TOS object storage and returns signed access URLs
"""

import argparse
import logging
import os
import requests
import sys
from datetime import datetime
from pathlib import Path
from pydantic import BaseModel
from typing import Optional, Union

from dotenv import load_dotenv
import tos
from tos import HttpMethodType

# Current directory
sys.path.append(str(Path(__file__).resolve().parent))
# Parent directory
sys.path.append(str(Path(__file__).resolve().parent.parent))

logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)

if not logger.handlers:
    console_handler = logging.StreamHandler(sys.stdout)
    console_handler.setLevel(logging.INFO)
    formatter = logging.Formatter("%(message)s")
    console_handler.setFormatter(formatter)
    logger.addHandler(console_handler)


def success_loaded_openclaw_dotenv() -> bool:
    openclaw_env = Path("/root/.openclaw/.env")
    # openclaw_env = Path(
    #     "/Users/bytedance/workspace/agentkit/agentkit-samples/skills/.venv/.openclaw/.env"
    # )
    if openclaw_env.exists():
        success = load_dotenv(openclaw_env)
    logger.info(f"Successfully loaded environment variables from {openclaw_env}")
    return success


LOAD_OPENCLAW_DOTENV_SUCCESS = success_loaded_openclaw_dotenv()


class VeIAMCredential(BaseModel):
    access_key_id: str
    secret_access_key: str
    session_token: str


def get_credential_from_service() -> VeIAMCredential:
    """Get credential from credential service"""

    endpoint = os.getenv("CREDENTIAL_SERVICE_ENDPOINT")
    api_key = os.getenv("CREDENTIAL_SERVICE_API_KEY")

    if not endpoint or not api_key:
        logger.error(
            "CREDENTIAL_SERVICE_ENDPOINT and CREDENTIAL_SERVICE_API_KEY environment variables must be set to fetch credentials from service."
        )
        return None

    try:
        response = requests.get(
            url=f"{endpoint}/credential",
            headers={"Authorization": f"Bearer {api_key}"},
            timeout=5,
        )
        response.raise_for_status()
        credential_data = response.json()["data"]
        logger.info(f"Successfully fetched credentials from service {endpoint}.")
        print(f"Credential data from service: {credential_data}")  # Debug output
        return VeIAMCredential(
            access_key_id=credential_data["access_key_id"],
            secret_access_key=credential_data["secret_access_key"],
            session_token=credential_data["session_token"],
        )
    except Exception as e:
        logger.error(f"Failed to fetch credentials from service: {e}")
        return None


def identify_volc_env() -> str:
    """
    Identify the Volcano Engine environment (vefaas or ecs).
    """

    VEFAAS_IAM_CRIDENTIAL_PATH = "/var/run/secrets/iam/credential"
    ECS_CLOUD_LINUX_ENV_PATH = "/etc/cloud/cloud.cfg"
    ECS_CLOUD_WINDOWS_ENV_PATH = r"C:\Program Files\Cloudbase Solutions\Cloudbase-Init"

    if os.path.exists(VEFAAS_IAM_CRIDENTIAL_PATH):
        return "vefaas"
    elif os.path.exists(ECS_CLOUD_LINUX_ENV_PATH):
        return "ecs"
    elif os.path.exists(ECS_CLOUD_WINDOWS_ENV_PATH):
        return "ecs"
    else:
        return "unknown"


VOLC_ENV = identify_volc_env()
if VOLC_ENV == "vefaas":
    try:
        from veadk.auth.veauth.utils import get_credential_from_vefaas_iam
    except ImportError:
        logger.error("vefaas environment detected but veadk import failed.")


def _get_session_prefix() -> str:
    """Extract session prefix from TOOL_USER_SESSION_ID environment variable

    Returns:
        str: Session prefix (e.g., "skill_agent_veadk_default_user_tmp-session-20251210150057")
             or timestamp if not set
    """
    session_id = os.getenv("TOOL_USER_SESSION_ID", "")
    if session_id:
        return session_id
    else:
        # Fallback to timestamp if no session ID
        return datetime.now().strftime("%Y%m%d_%H%M%S")


def upload_file_to_tos(
    file_path: str,
    bucket_name: str,
    region: str = "cn-beijing",
    ak: Optional[str] = None,
    sk: Optional[str] = None,
    session_token: Optional[str] = None,
    expires: int = 604800,  # 7-day validity
) -> Optional[str]:
    """
    Upload a file to TOS object storage and return a signed accessible URL

    Args:
        file_path: Local file path
        bucket_name: TOS bucket name
        region: TOS region, defaults to cn-beijing
        ak: Access Key; if empty, reads from environment variables
        sk: Secret Key; if empty, reads from environment variables
        session_token: Session token
        expires: Signed URL validity period (seconds), defaults to 7 days

    Returns:
        str: Signed TOS URL that can be accessed directly
        None: Returns None if upload fails

    Environment variables:
        VOLCENGINE_ACCESS_KEY: Volcano Engine access key
        VOLCENGINE_SECRET_KEY: Volcano Engine secret key
        TOOL_USER_SESSION_ID: Session ID for generating object key prefix
    """
    if bucket_name is None:
        logger.error("Error: bucket name The bucket has not been specified.")
        return None

    # Check if file exists
    if not os.path.exists(file_path):
        logger.error(f"Error: File does not exist: {file_path}")
        return None

    if not os.path.isfile(file_path):
        logger.error(f"Error: Path is not a file: {file_path}")
        return None

    # Retrieve credentials
    access_key = ak or os.getenv("VOLCENGINE_ACCESS_KEY")
    secret_key = sk or os.getenv("VOLCENGINE_SECRET_KEY")
    session_token = session_token or ""

    if not (access_key and secret_key):
        # First try to get credentials from Credential Service if environment variables are set
        if os.getenv("CREDENTIAL_SERVICE_ENDPOINT") and os.getenv(
            "CREDENTIAL_SERVICE_API_KEY"
        ):
            logger.info("Trying to fetch credentials from Credential Service...")
            try:
                cred = get_credential_from_service()
                access_key = cred.access_key_id
                secret_key = cred.secret_access_key
                session_token = cred.session_token
            except Exception as e:
                logger.warning(f"Failed to get credential from Credential Service: {e}")

        if VOLC_ENV == "vefaas":
            if get_credential_from_vefaas_iam:
                logger.info("Trying to fetch credentials from VeFaaS IAM...")
                try:
                    cred = get_credential_from_vefaas_iam()
                    access_key = cred.access_key_id
                    secret_key = cred.secret_access_key
                    session_token = cred.session_token
                except Exception as e:
                    logger.warning(f"Failed to get credential from vefaas iam: {e}")
            else:
                logger.warning(
                    "vefaas environment detected but get_credential_from_vefaas_iam is None."
                )

    if not access_key or not secret_key:
        raise PermissionError(
            "VOLCENGINE_ACCESS_KEY and VOLCENGINE_SECRET_KEY are not provided or IAM Role  or Credential Service is not configured."
        )

    # Auto-generate object_key: upload/{session_prefix}/{filename}
    session_prefix = _get_session_prefix()
    filename = os.path.basename(file_path)
    object_key = f"upload/{session_prefix}/{filename}"

    # Create TOS client
    client = None
    try:
        # Initialize TOS client
        endpoint = f"tos-{region}.volces.com"
        client = tos.TosClientV2(
            ak=access_key,
            sk=secret_key,
            security_token=session_token,
            endpoint=endpoint,
            region=region,
        )

        logger.info(f"Starting file upload: {file_path}")
        logger.info(f"Target Bucket: {bucket_name}")
        logger.info(f"Object Key: {object_key}")

        # Ensure bucket exists (create if not)
        try:
            client.head_bucket(bucket_name)
            logger.info(f"Bucket {bucket_name} already exists")
        except tos.exceptions.TosServerError as e:
            if e.status_code == 404:
                logger.info(f"Bucket {bucket_name} does not exist, creating...")
                client.create_bucket(
                    bucket=bucket_name,
                    acl=tos.ACLType.ACL_Private,
                    storage_class=tos.StorageClassType.Storage_Class_Standard,
                )
                logger.info(f"Bucket {bucket_name} created successfully")
            else:
                raise e

        # Upload file
        result = client.put_object_from_file(
            bucket=bucket_name, key=object_key, file_path=file_path
        )

        logger.info("File uploaded successfully!")
        logger.info(f"ETag: {result.etag}")

        # Generate signed URL
        signed_url_output = client.pre_signed_url(
            http_method=HttpMethodType.Http_Method_Get,
            bucket=bucket_name,
            key=object_key,
            expires=expires,
        )

        signed_url = signed_url_output.signed_url
        logger.info(
            f"Signed URL generated (valid for {expires} seconds / {expires // 86400} days)"
        )

        return signed_url

    except tos.exceptions.TosClientError as e:
        logger.error(f"TOS client error: {e}")
        return None
    except tos.exceptions.TosServerError as e:
        logger.error(f"TOS server error: {e}")
        logger.error(f"Status code: {e.status_code}")
        logger.error(f"Error code: {e.code}")
        logger.error(f"Error message: {e.message}")
        return None
    except Exception as e:
        logger.error(f"File upload failed: {e}")
        import traceback

        traceback.print_exc()
        return None
    finally:
        # Close client
        if client:
            client.close()


def upload_directory_to_tos(
    directory_path: str,
    bucket_name: str,
    region: str = "cn-beijing",
    ak: Optional[str] = None,
    sk: Optional[str] = None,
    session_token: Optional[str] = None,
    expires: int = 604800,
) -> Optional[str]:
    """
    Upload entire directory to TOS object storage and return signed URLs for all files

    Args:
        directory_path: Local directory path
        bucket_name: TOS bucket name
        region: TOS region, defaults to cn-beijing
        ak: Access Key; if empty, reads from environment variables
        sk: Secret Key; if empty, reads from environment variables
        session_token: Session token
        expires: Signed URL validity period (seconds), defaults to 7 days

    Returns:
        str: TOS path for uploaded directory
        None: Returns None if upload fails

    Environment variables:
        VOLCENGINE_ACCESS_KEY: Volcano Engine access key
        VOLCENGINE_SECRET_KEY: Volcano Engine secret key
    """
    if bucket_name is None:
        logger.error("Error: bucket name The bucket has not been specified.")
        return None

    # Check if directory exists
    if not os.path.exists(directory_path):
        logger.error(f"Error: Directory does not exist: {directory_path}")
        return None

    if not os.path.isdir(directory_path):
        logger.error(f"Error: Path is not a directory: {directory_path}")
        return None

    # Retrieve credentials
    access_key = ak or os.getenv("VOLCENGINE_ACCESS_KEY")
    secret_key = sk or os.getenv("VOLCENGINE_SECRET_KEY")
    session_token = session_token or ""

    if not (access_key and secret_key):
        # First try to get credentials from Credential Service if environment variables are set
        if os.getenv("CREDENTIAL_SERVICE_ENDPOINT") and os.getenv(
            "CREDENTIAL_SERVICE_API_KEY"
        ):
            logger.info("Trying to fetch credentials from Credential Service...")
            try:
                cred = get_credential_from_service()
                access_key = cred.access_key_id
                secret_key = cred.secret_access_key
                session_token = cred.session_token
            except Exception as e:
                logger.warning(f"Failed to get credential from Credential Service: {e}")

        if VOLC_ENV == "vefaas":
            if get_credential_from_vefaas_iam:
                try:
                    cred = get_credential_from_vefaas_iam()
                    access_key = cred.access_key_id
                    secret_key = cred.secret_access_key
                    session_token = cred.session_token
                except Exception as e:
                    logger.error(f"Failed to get credential from vefaas iam: {e}")
            else:
                logger.warning(
                    "vefaas environment detected but get_credential_from_vefaas_iam is None."
                )

    if not access_key or not secret_key:
        logger.error(
            "Error: VOLCENGINE_ACCESS_KEY and VOLCENGINE_SECRET_KEY are not provided or IAM Role or Credential Service is not configured."
        )
        return None

    # Auto-generate object_key_prefix: upload/{session_prefix}/{directory_name}
    session_prefix = _get_session_prefix()
    directory_name = os.path.basename(os.path.abspath(directory_path))
    object_key_prefix = f"upload/{session_prefix}/{directory_name}"

    # Create TOS client
    client = None

    try:
        # Initialize TOS client
        endpoint = f"tos-{region}.volces.com"
        client = tos.TosClientV2(
            ak=access_key,
            sk=secret_key,
            security_token=session_token,
            endpoint=endpoint,
            region=region,
        )

        logger.info(f"Starting directory upload: {directory_path}")
        logger.info(f"Target Bucket: {bucket_name}")
        logger.info(f"Object Key Prefix: {object_key_prefix}")

        # Ensure bucket exists (create if not)
        try:
            client.head_bucket(bucket_name)
            logger.info(f"Bucket {bucket_name} already exists")
        except tos.exceptions.TosServerError as e:
            if e.status_code == 404:
                logger.info(f"Bucket {bucket_name} does not exist, creating...")
                client.create_bucket(
                    bucket=bucket_name,
                    acl=tos.ACLType.ACL_Private,
                    storage_class=tos.StorageClassType.Storage_Class_Standard,
                )
                logger.info(f"Bucket {bucket_name} created successfully")
            else:
                raise e

        # Upload all files in directory recursively
        for root, dirs, files in os.walk(directory_path):
            for file in files:
                file_path = os.path.join(root, file)

                # Calculate relative path from directory_path
                relative_path = os.path.relpath(file_path, directory_path)

                # Construct object key: upload/{session_prefix}/{directory_name}/{relative_path}
                object_key = f"{object_key_prefix}/{relative_path}"

                # Upload file
                try:
                    result = client.put_object_from_file(
                        bucket=bucket_name, key=object_key, file_path=file_path
                    )
                    logger.info(
                        f"Uploaded: {file_path} -> {object_key}, result: {result}"
                    )

                except Exception as e:
                    logger.error(f"Failed to upload {file_path}: {e}")

        tos_path = f"tos://{bucket_name}/{object_key_prefix} "
        logger.info(f"Directory upload completed! TOS Path: {tos_path}")
        return tos_path

    except tos.exceptions.TosClientError as e:
        logger.error(f"TOS client error: {e}")
        return None
    except tos.exceptions.TosServerError as e:
        logger.error(f"TOS server error: {e}")
        logger.error(f"Status code: {e.status_code}")
        logger.error(f"Error code: {e.code}")
        logger.error(f"Error message: {e.message}")
        return None
    except Exception as e:
        logger.error(f"Directory upload failed: {e}")
        import traceback

        traceback.print_exc()
        return None
    finally:
        # Close client
        if client:
            client.close()


def upload_to_tos(
    path: str,
    bucket_name: str,
    region: str = "cn-beijing",
    ak: Optional[str] = None,
    sk: Optional[str] = None,
    session_token: Optional[str] = None,
    expires: int = 604800,
) -> Optional[Union[str, list[str]]]:
    """
    Upload a file or directory to TOS object storage

    This function automatically detects whether the path is a file or directory
    and calls the appropriate upload function.

    Args:
        path: Local file or directory path
        bucket_name: TOS bucket name
        region: TOS region
        ak: Access Key
        sk: Secret Key
        session_token: Session token
        expires: Signed URL validity period (seconds)

    Returns:
        str: Signed URL if uploading a file
        list[str]: List of signed URLs if uploading a directory
        None: Returns None if upload fails
    """
    if not os.path.exists(path):
        logger.error(f"Error: Path does not exist: {path}")
        return None

    if os.path.isfile(path):
        # Upload single file
        return upload_file_to_tos(
            file_path=path,
            bucket_name=bucket_name,
            region=region,
            ak=ak,
            sk=sk,
            session_token=session_token,
            expires=expires,
        )
    elif os.path.isdir(path):
        # Upload directory
        return upload_directory_to_tos(
            directory_path=path,
            bucket_name=bucket_name,
            region=region,
            ak=ak,
            sk=sk,
            session_token=session_token,
            expires=expires,
        )
    else:
        logger.error(f"Error: Path is neither a file nor a directory: {path}")
        return None


def main():
    """Command-line interface for tos_upload"""
    parser = argparse.ArgumentParser(
        description="Upload files or directories to Volcano Engine TOS and generate signed URLs",
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
Examples:
  # Upload a file (auto-detect)
  python tos_upload.py /path/to/file.mp4 --bucket my-bucket

  # Upload a directory (auto-detect)
  python tos_upload.py /path/to/directory --bucket my-bucket

  # Upload to different region with custom expiration
  python tos_upload.py /path/to/file.json --bucket my-bucket --region cn-beijing --expires 86400

File Upload Structure:
  File:      upload/{session_prefix}/{filename}
  Directory: upload/{session_prefix}/{directory_name}/{relative_path}

Environment Variables:
  VOLCENGINE_ACCESS_KEY     Volcano Engine access key
  VOLCENGINE_SECRET_KEY     Volcano Engine secret key
  TOOL_USER_SESSION_ID      Session ID for generating object key prefix
        """,
    )

    parser.add_argument("path", type=str, help="Local file or directory path to upload")

    parser.add_argument("--bucket", type=str, required=True, help="TOS bucket name")

    parser.add_argument(
        "--region",
        type=str,
        default="cn-beijing",
        help="TOS region (default: cn-beijing)",
    )

    parser.add_argument(
        "--expires",
        type=int,
        default=604800,
        help="Signed URL expiration in seconds (default: 604800 = 7 days)",
    )

    args = parser.parse_args()

    try:
        # Auto-detect and upload
        result = upload_to_tos(
            path=args.path,
            bucket_name=args.bucket,
            region=args.region,
            expires=args.expires,
        )

        if result:
            print("\n" + "=" * 60)
            print("✅ Upload Successful!")
            print("=" * 60)
            if os.path.isfile(args.path):
                print(f"Signed URL:\n{result}")
            elif os.path.isdir(args.path):
                print(f"TOS Path:\n{result}")
            print("=" * 60)
            sys.exit(0)
        else:
            logger.error("\n❌ Upload failed")
            sys.exit(1)

    except Exception as e:
        logger.error(f"Error: {e}")
        import traceback

        traceback.print_exc()
        sys.exit(1)


if __name__ == "__main__":
    main()