# chuk-motion/src/chuk_motion/components/layouts/ThreeByThreeGrid/tool.py
"""ThreeByThreeGrid 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 ThreeByThreeGrid tool with the MCP server."""
@mcp.tool
async def remotion_add_three_by_three_grid(
items: str,
gap: float = 20,
padding: float = 40,
duration: float | str = 5.0,
) -> str:
"""
Add ThreeByThreeGrid to the composition.
Perfect 3x3 grid layout (9 cells)
Args:
items: JSON array of up to 9 grid items. Format: [{"type": "ComponentName", "config": {...}}, ...]
gap: Gap between grid items
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:
items_parsed = json.loads(items)
except json.JSONDecodeError as e:
return ErrorResponse(error=f"Invalid items JSON: {str(e)}").model_dump_json()
# Limit to 9 items
items_parsed = items_parsed[:9]
try:
# Convert array of item dicts to ComponentInstance objects
children_components = []
if isinstance(items_parsed, list):
for item in items_parsed:
child = parse_nested_component(item)
if child is not None:
children_components.append(child)
builder = project_manager.current_timeline
start_time = builder.get_total_duration_seconds()
builder.add_three_by_three_grid(
items=children_components,
start_time=start_time,
gap=gap,
padding=padding,
duration=duration,
)
return LayoutComponentResponse(
component="ThreeByThreeGrid",
layout="3x3",
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)
