"""Command runner: dispatch by mime type to docx/xlsx/pptx engine. No fallback."""
import logging
from typing import Any

from app.engine.docx_editor import apply_commands_docx

logger = logging.getLogger(__name__)

DOCX_MIME = "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
XLSX_MIME = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
PPTX_MIME = "application/vnd.openxmlformats-officedocument.presentationml.presentation"


def apply_commands(content: bytes, mime_type: str, commands: list[dict[str, Any]]) -> bytes:
    """
    Apply commands to document content. Returns new content.
    Raises ValueError for unknown mime or command type.
    """
    if mime_type == DOCX_MIME:
        return apply_commands_docx(content, commands)
    if mime_type == XLSX_MIME:
        raise ValueError("xlsx commands not implemented yet")
    if mime_type == PPTX_MIME:
        raise ValueError("pptx commands not implemented yet")
    raise ValueError(f"Unsupported mime type for commands: {mime_type}")