Pdf Extractor

#!/bin/bash
# Convert PDF files to different formats
#
# This script demonstrates shell script support in skillkit.
# It reads JSON from stdin and performs format conversion.
#
# Environment variables available:
# - SKILL_NAME
# - SKILL_BASE_DIR
# - SKILL_VERSION
# - SKILLKIT_VERSION

# Read JSON input from stdin
read -r json_input

# Parse JSON using Python (for simplicity)
input_file=$(echo "$json_input" | python3 -c "import sys, json; data=json.load(sys.stdin); print(data.get('input_file', ''))")
output_format=$(echo "$json_input" | python3 -c "import sys, json; data=json.load(sys.stdin); print(data.get('output_format', 'txt'))")

# Validate input
if [ -z "$input_file" ]; then
    echo '{"error": "Missing required argument: input_file"}' >&2
    exit 1
fi

# Mock conversion (in real implementation, would use tools like pdftotext, pandoc, etc.)
output_file="${input_file%.pdf}.${output_format}"

# Output result
cat <<EOF
{
  "status": "success",
  "input_file": "$input_file",
  "output_file": "$output_file",
  "output_format": "$output_format",
  "message": "Converted $input_file to $output_format format",
  "environment": {
    "skill_name": "$SKILL_NAME",
    "skill_base_dir": "$SKILL_BASE_DIR",
    "skill_version": "$SKILL_VERSION",
    "skillkit_version": "$SKILLKIT_VERSION"
  }
}
EOF

exit 0

#!/usr/bin/env python3
"""Extract text and metadata from PDF files.

This script demonstrates reading JSON arguments from stdin,
processing them, and outputting results in JSON format.

Environment Variables:
- SKILL_NAME: Name of the parent skill
- SKILL_BASE_DIR: Base directory of the skill
- SKILL_VERSION: Version of the skill
- SKILLKIT_VERSION: Version of skillkit
"""
import sys
import json
import os


def extract_pdf(file_path: str, pages: str | list):
    """
    Extract text from PDF file (mock implementation).

    In a real implementation, this would use a library like PyPDF2 or pdfplumber.

    Args:
        file_path: Path to the PDF file
        pages: "all" or list of page numbers

    Returns:
        dict with extracted text and metadata
    """
    # Mock implementation for demonstration
    return {
        "text": f"Extracted text from {file_path}",
        "metadata": {
            "title": "Sample Document",
            "author": "skillkit",
            "pages": 10,
            "file_path": file_path,
            "requested_pages": pages
        },
        "environment": {
            "skill_name": os.getenv("SKILL_NAME"),
            "skill_base_dir": os.getenv("SKILL_BASE_DIR"),
            "skill_version": os.getenv("SKILL_VERSION"),
            "skillkit_version": os.getenv("SKILLKIT_VERSION")
        }
    }


def main():
    """Main entry point for the PDF extraction script."""
    try:
        # Read JSON arguments from stdin
        args = json.load(sys.stdin)

        # Validate required arguments
        if "file_path" not in args:
            raise ValueError("Missing required argument: file_path")

        # Extract optional arguments
        file_path = args["file_path"]
        pages = args.get("pages", "all")

        # Perform extraction
        result = extract_pdf(file_path, pages)

        # Output result as JSON
        print(json.dumps(result, indent=2))
        sys.exit(0)

    except json.JSONDecodeError as e:
        error = {
            "error": "Invalid JSON input",
            "details": str(e)
        }
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)

    except ValueError as e:
        error = {
            "error": "Invalid arguments",
            "details": str(e)
        }
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)

    except Exception as e:
        error = {
            "error": "Unexpected error",
            "details": str(e)
        }
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)


if __name__ == "__main__":
    main()

#!/usr/bin/env python3
"""Parse structured data from PDF forms and tables.

This script demonstrates advanced PDF processing capabilities.
"""
import sys
import json
import os


def parse_pdf(file_path: str, extract_tables: bool, extract_forms: bool):
    """
    Parse structured data from PDF (mock implementation).

    In a real implementation, this would use libraries like:
    - tabula-py or camelot for table extraction
    - PyPDF2 or pdfplumber for form field extraction

    Args:
        file_path: Path to the PDF file
        extract_tables: Whether to extract tables
        extract_forms: Whether to extract form fields

    Returns:
        dict with parsed data
    """
    result = {
        "file_path": file_path,
        "extracted_data": {}
    }

    if extract_tables:
        result["extracted_data"]["tables"] = [
            {
                "page": 1,
                "rows": 5,
                "columns": 3,
                "data": [
                    ["Header1", "Header2", "Header3"],
                    ["Row1Col1", "Row1Col2", "Row1Col3"],
                    ["Row2Col1", "Row2Col2", "Row2Col3"]
                ]
            }
        ]

    if extract_forms:
        result["extracted_data"]["forms"] = {
            "name": "John Doe",
            "email": "john@example.com",
            "checkbox_agree": True
        }

    return result


def main():
    """Main entry point for PDF parsing script."""
    try:
        # Read JSON arguments from stdin
        args = json.load(sys.stdin)

        # Validate and extract arguments
        file_path = args.get("file_path")
        if not file_path:
            raise ValueError("Missing required argument: file_path")

        extract_tables = args.get("extract_tables", False)
        extract_forms = args.get("extract_forms", False)

        # Perform parsing
        result = parse_pdf(file_path, extract_tables, extract_forms)

        # Output result as JSON
        print(json.dumps(result, indent=2))
        sys.exit(0)

    except json.JSONDecodeError as e:
        error = {"error": "Invalid JSON input", "details": str(e)}
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)

    except ValueError as e:
        error = {"error": "Invalid arguments", "details": str(e)}
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)

    except Exception as e:
        error = {"error": "Unexpected error", "details": str(e)}
        print(json.dumps(error), file=sys.stderr)
        sys.exit(1)


if __name__ == "__main__":
    main()