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import base64 |
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import os |
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import mimetypes |
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from typing import Optional, Dict, Any |
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import logging |
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logging.basicConfig(level=logging.INFO) |
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logger = logging.getLogger(__name__) |
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def encode_image_to_base64(image_path: str) -> str: |
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"""Convert image file to base64 encoding""" |
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try: |
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with open(image_path, "rb") as image_file: |
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encoded = base64.b64encode(image_file.read()).decode('utf-8') |
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return encoded |
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except Exception as e: |
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logger.error(f"Error encoding image {image_path}: {str(e)}") |
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raise |
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def get_mime_type(file_path: str) -> str: |
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"""Get MIME type for file""" |
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mime_type, _ = mimetypes.guess_type(file_path) |
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return mime_type or 'application/octet-stream' |
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def validate_file_exists(file_path: str) -> bool: |
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"""Validate that file exists and is readable""" |
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return os.path.exists(file_path) and os.path.isfile(file_path) |
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def get_env_var(var_name: str, default: Optional[str] = None) -> str: |
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"""Get environment variable with optional default""" |
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value = os.getenv(var_name, default) |
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if value is None: |
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raise ValueError(f"Environment variable {var_name} is required") |
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return value |
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