name: '🧼 Telegram message escape'
description: 'Automatically escapes dots, dashes, and exclamation marks for Telegram MarkdownV2'

inputs:
  message:
    description: 'The raw text string to escape'
    required: true

outputs:
  escaped_message:
    description: 'The safely escaped string ready for Telegram'
    value: ${{ steps.escape.outputs.result }}

runs:
  using: 'composite'
  steps:
    - id: escape
      shell: python
      env:
        RAW_MESSAGE: ${{ inputs.message }}
        ESCAPED_MESSAGE: $GITHUB_OUTPUT
      run: |
        import os

        raw_text = os.environ.get("RAW_MESSAGE", "")
        output_file = os.environ.get("ESCAPED_MESSAGE")

        def escape_text(text):
            escape_chars = ["-", ".", "!"]
            for char in escape_chars:
                text = text.replace(char, f"\\{char}")
            return text

        parts = raw_text.split("`")
        processed_parts = []

        for i, part in enumerate(parts):
            if i % 2 == 0:
                processed_parts.append(escape_text(part))
            else:
                processed_parts.append(f"\\`{part}\\`")

        escaped_text = "".join(processed_parts)

        with open(output_file, "a", encoding="utf-8") as f:
            f.write("result<<EOF\n")
            f.write(f"{escaped_text}\n")
            f.write("EOF\n")