"""
Configuration module for OCR PDF MCP Server v1.0.0
Handles environment variables and system-specific settings
"""
import os
import platform
from pathlib import Path
from dotenv import load_dotenv
# Load environment variables from .env file
load_dotenv()
class Config:
"""Production configuration for OCR PDF MCP Server"""
# Version info
VERSION = "1.0.0"
# Default Tesseract path based on OS
if platform.system() == "Windows":
default_tesseract = r"C:\Program Files\Tesseract-OCR\tesseract.exe"
elif platform.system() == "Darwin": # macOS
default_tesseract = "/usr/local/bin/tesseract"
else: # Linux
default_tesseract = "/usr/bin/tesseract"
# Core settings
TESSERACT_PATH = os.getenv("TESSERACT_PATH", default_tesseract)
OCR_LANGUAGE = os.getenv("OCR_LANGUAGE", "eng+ind")
MAX_WORKERS = int(os.getenv("MAX_WORKERS", "4"))
# Optional API server settings (for standalone mode)
PORT = int(os.getenv("PORT", "8000"))
HOST = os.getenv("HOST", "0.0.0.0")
DEBUG = os.getenv("DEBUG", "False").lower() == "true"
# Logging
LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO").upper()
LOG_FORMAT = os.getenv("LOG_FORMAT", "%(asctime)s - %(name)s - %(levelname)s - %(message)s")
# Performance settings
PDF_MAX_SIZE_MB = int(os.getenv("PDF_MAX_SIZE_MB", "100"))
OCR_TIMEOUT_SECONDS = int(os.getenv("OCR_TIMEOUT_SECONDS", "300"))
# Validation
@classmethod
def validate(cls):
"""Validate configuration settings"""
errors = []
# Check Tesseract
if not Path(cls.TESSERACT_PATH).exists():
errors.append(f"Tesseract not found at: {cls.TESSERACT_PATH}")
# Check workers
if cls.MAX_WORKERS < 1 or cls.MAX_WORKERS > 16:
errors.append(f"MAX_WORKERS must be between 1-16, got: {cls.MAX_WORKERS}")
# Check PDF size limit
if cls.PDF_MAX_SIZE_MB < 1:
errors.append(f"PDF_MAX_SIZE_MB must be positive, got: {cls.PDF_MAX_SIZE_MB}")
if errors:
raise ValueError(f"Configuration errors: {'; '.join(errors)}")
return True
@classmethod
def get_info(cls):
"""Get configuration information"""
return {
"version": cls.VERSION,
"tesseract_path": cls.TESSERACT_PATH,
"ocr_language": cls.OCR_LANGUAGE,
"max_workers": cls.MAX_WORKERS,
"pdf_max_size_mb": cls.PDF_MAX_SIZE_MB,
"ocr_timeout": cls.OCR_TIMEOUT_SECONDS,
"platform": platform.system(),
"debug": cls.DEBUG
}
