RocketChat/Rocket.Chat

import type { LayoutBlock } from '../blocks/LayoutBlock';
import type { ConditionalBlock } from '../blocks/layout/ConditionalBlock';
import { BlockContext } from './BlockContext';
import type { BlockRenderers } from './BlockRenderers';
import type { LayoutBlockRenderer } from './LayoutBlockRenderer';

const getLayoutBlockRenderer = <T>(
    renderers: BlockRenderers<T>,
    type: Exclude<LayoutBlock, ConditionalBlock>['type'],
): LayoutBlockRenderer<T> | undefined => renderers[type] as LayoutBlockRenderer<T> | undefined;

export const renderLayoutBlock =
    <T>(renderers: BlockRenderers<T>) =>
    (layoutBlock: Exclude<LayoutBlock, ConditionalBlock>, index: number): T | null => {
        const renderer = getLayoutBlockRenderer(renderers, layoutBlock.type);

        if (!renderer) {
            return null;
        }

        return renderer.call(renderers, layoutBlock, BlockContext.BLOCK, index);
    };