# chuk-motion/src/chuk_motion/components/layouts/Container/tool.py
"""Container MCP tool."""
import asyncio
import json
from chuk_motion.components.component_helpers import parse_nested_component
from chuk_motion.models import ErrorResponse, LayoutComponentResponse
def register_tool(mcp, project_manager):
"""Register the Container tool with the MCP server."""
@mcp.tool
async def remotion_add_container(
content: str | None = None,
position: str | None = None,
width: str | None = None,
height: str | None = None,
padding: float = 40,
duration: float | str = 5.0,
) -> str:
"""
Add Container to the composition.
Flexible positioning container for components.
Args:
content: JSON component to display in container. Format: {"type": "ComponentName", "config": {...}}
Example with video:
{
"type": "VideoContent",
"config": {
"src": "https://example.com/video.mp4",
"muted": true,
"fit": "cover",
"loop": true
}
}
position: Position on screen (center, top-left, etc.)
width: Container width
height: Container height
padding: Padding from edges
duration: Duration in seconds
Returns:
JSON with component info
"""
def _add():
if not project_manager.current_timeline:
return ErrorResponse(
error="No active project. Create a project first."
).model_dump_json()
try:
content_parsed = json.loads(content) if content else None
except json.JSONDecodeError as e:
return ErrorResponse(error=f"Invalid content JSON: {str(e)}").model_dump_json()
try:
# Convert nested component to ComponentInstance object
content_component = parse_nested_component(content_parsed)
# Get builder and start time
builder = project_manager.current_timeline
start_time = builder.get_total_duration_seconds()
# Add component using builder
builder.add_container(
start_time=start_time,
position=position,
width=width,
height=height,
padding=padding,
content=content_component,
duration=duration,
)
return LayoutComponentResponse(
component="Container",
layout=position or "center",
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)
