import { handleTwoColumn } from './parseTwoColumn';
import { wrapComponent } from './wrapComponent';

export const groupByBreakIntoBlocks = (ast) => {
  const result: any = [];
  const proseWrapper = (children) => {
    return {
      type: 'mdxJsxFlowElement',
      name: 'Prose',
      children: [...children],
    };
  };

  const groupChildren = (children) => {
    const groups: any = [];
    let currentGroup: any = [];

    for (const child of children) {
      if (
        child.type === 'mdxJsxTextElement' ||
        child.type === 'mdxJsxFlowElement'
      ) {
        if (child.name === 'Break') {
          if (currentGroup.length > 0) {
            groups.push([proseWrapper(currentGroup)]);
            currentGroup = [];
          }
        } else if (
          child.name === 'Block' ||
          child.name === 'Chart' ||
          child.name === 'Map' ||
          child.name === 'MapBlock' ||  
          child.name === 'TwoColumn'
        ) {
          groups.push([proseWrapper(currentGroup)]);

          if (child.name === 'Chart' || child.name === 'Map') {
            groups.push([wrapComponent(child)]);
          } else if (child.name === 'TwoColumn') {
            const parsedColumn = handleTwoColumn(child);
            groups.push(parsedColumn);
          }
          currentGroup = [];
        }
      } else {
        currentGroup.push(child);
      }
    }

    if (currentGroup.length > 0) {
      groups.push([...currentGroup]);
    }
    return groups;
  };

  if (ast.type === 'root' && Array.isArray(ast.children)) {
    const groups = groupChildren(ast.children);

    for (const group of groups) {
      // Check for prose wrapper inside group If no prose wrapper
      // then wrap group inside prose object before adding to block element

      if (
        group.some((item) => {
          return item.name === 'Prose';
        })
      ) {
        result.push({
          type: 'mdxJsxFlowElement',
          name: 'Block',
          children: [...group],
        });
      } else {
        result.push({
          type: 'mdxJsxFlowElement',
          name: 'Block',
          children: [
            {
              type: 'mdxJsxFlowElement',
              name: 'Prose',
              children: [...group],
            },
          ],
        });
      }
    }
  }

  return result;
};