export function adjustWorkspace()

in src/state/layout/layoutReducer.ts [10:50]

• 36 lines of code
• 3 McCabe index (conditional complexity)

export function adjustWorkspace<NodeType, EdgeType>(
  state: DiagramMakerData<NodeType, EdgeType>
): DiagramMakerData<NodeType, EdgeType> {
  const nodes = state.nodes;
  const workspaceSize = state.workspace.canvasSize;
  let rightMost = workspaceSize.width;
  let bottomMost = workspaceSize.height;
  let leftMost = 0;
  let topMost = 0;

  const nodeIds = Object.keys(nodes);
  nodeIds.forEach((nodeId) => {
    const node = nodes[nodeId];
    const position = node.diagramMakerData.position;
    const size = node.diagramMakerData.size;
    rightMost = Math.max(position.x + size.width, rightMost);
    bottomMost = Math.max(position.y + size.height, bottomMost);
    leftMost = Math.min(position.x, leftMost);
    topMost = Math.min(position.y, topMost);
  });

  const width =  rightMost - leftMost;
  const height = bottomMost - topMost;

  return produce(state, (draftState) => {
    draftState.workspace.canvasSize.width = width;
    draftState.workspace.canvasSize.height = height;

    // move all nodes if node beyond top left boundary
    if (leftMost < 0 || topMost < 0) {
      nodeIds.forEach((nodeId) => {
        const oldPos = draftState.nodes[nodeId].diagramMakerData.position;
        const position = {
          x: oldPos.x - leftMost,
          y: oldPos.y - topMost
        };
        draftState.nodes[nodeId].diagramMakerData.position = position;
      });
    }
  });
}