# chuk-motion/src/chuk_motion/components/overlays/TextOverlay/tool.py
"""TextOverlay MCP tool."""
import asyncio
from chuk_motion.models import ErrorResponse, OverlayComponentResponse
def register_tool(mcp, project_manager):
"""Register the TextOverlay tool with the MCP server."""
@mcp.tool
async def remotion_add_text_overlay(
text: str,
style: str | None = None,
animation: str | None = None,
position: str | None = None,
duration: float = 3.0,
) -> str:
"""
Add TextOverlay to the composition.
Animated text overlay for emphasis and captions
Args:
text: Text content to display
style: Text style variant
animation: Animation type
position: Position on screen
duration: Duration in seconds (default: 3.0)
Returns:
JSON with component info
"""
def _add():
builder = project_manager.current_timeline
if not builder:
return ErrorResponse(
error="No active project. Create a project first."
).model_dump_json()
try:
start_time = builder.get_total_duration_seconds()
builder.add_text_overlay(
text=text,
start_time=start_time,
style=style,
animation=animation,
duration=duration,
position=position,
)
return OverlayComponentResponse(
component="TextOverlay",
start_time=start_time,
duration=duration,
).model_dump_json()
except Exception as e:
return ErrorResponse(error=str(e)).model_dump_json()
return await asyncio.get_event_loop().run_in_executor(None, _add)
