Function createUpdatedBlock

cli/src/utils/collapse-helpers.ts:65–89

* Creates an updated block with new collapsed state if different from current. * Returns null if no change is needed. * Thinking blocks use thinkingCollapseState; others use isCollapsed.

(
  block: CollapsibleBlock,
  collapsed: boolean,
)

 * Thinking blocks use thinkingCollapseState; others use isCollapsed.
 */
function createUpdatedBlock(
  block: CollapsibleBlock,
  collapsed: boolean,
): CollapsibleBlock | null {
  if (isThinkingTextBlock(block)) {
    const targetState: ThinkingCollapseState = collapsed ? 'hidden' : 'expanded'
    if (block.thinkingCollapseState === targetState) {
      return null
    }
    return {
      ...block,
      thinkingCollapseState: targetState,
      userOpened: !collapsed ? true : block.userOpened,
    }
  }
  const currentCollapsed = getBlockCollapsedState(block)
  if (currentCollapsed === collapsed) {
    return null
  }
  return {
    ...block,
    isCollapsed: collapsed,
    userOpened: !collapsed ? true : block.userOpened,
  }
}

/**
 * Checks if any collapsible block in the given blocks array is expanded.