text: /* @flow */
  import type { ScriptLine } from '../utils/stack-frame';
  import { applyStyles } from '../utils/dom/css';
  import { absolutifyCaret } from '../utils/dom/absolutifyCaret';
  import {
    preStyle,
    codeStyle,
    primaryErrorStyle,
    secondaryErrorStyle,
  } from '../styles';
  
  import generateAnsiHtml from 'react-dev-utils/ansiHTML';
  
  import codeFrame from 'babel-code-frame';
  
  function createCode(
    document: Document,
    sourceLines: ScriptLine[],
    lineNum: number,
    columnNum: number | null,
    contextSize: number,
    main: boolean,
    onSourceClick: ?Function
  ) {
    const sourceCode = [];
    let whiteSpace = Infinity;
    sourceLines.forEach(function(e) {
      const { content: text } = e;
      const m = text.match(/^\s*/);
      if (text === '') {
        return;
      }
      if (m && m[0]) {
        whiteSpace = Math.min(whiteSpace, m[0].length);
      } else {
        whiteSpace = 0;
      }
    });
    sourceLines.forEach(function(e) {
      let { content: text } = e;
      const { lineNumber: line } = e;
  
      if (isFinite(whiteSpace)) {
        text = text.substring(whiteSpace);
      }
      sourceCode[line - 1] = text;
    });
    const ansiHighlight = codeFrame(
      sourceCode.join('\n'),
      lineNum,
      columnNum == null ? 0 : columnNum - (isFinite(whiteSpace) ? whiteSpace : 0),
      {
        forceColor: true,
        linesAbove: contextSize,
        linesBelow: contextSize,
      }
    );
    const htmlHighlight = generateAnsiHtml(ansiHighlight);
    const code = document.createElement('code');
    code.innerHTML = htmlHighlight;
    absolutifyCaret(code);
    applyStyles(code, codeStyle);
  
    const ccn = code.childNodes;
    // eslint-disable-next-line
    oLoop: for (let index = 0; index < ccn.length; ++index) {
      const node = ccn[index];
      const ccn2 = node.childNodes;
      for (let index2 = 0; index2 < ccn2.length; ++index2) {
        const lineNode = ccn2[index2];
        const text = lineNode.innerText;
        if (text == null) {
          continue;
        }
        if (text.indexOf(' ' + lineNum + ' |') === -1) {
          continue;
        }
        // $FlowFixMe
        applyStyles(node, main ? primaryErrorStyle : secondaryErrorStyle);
        // eslint-disable-next-line
        break oLoop;
      }
    }
    const pre = document.createElement('pre');
    applyStyles(pre, preStyle);
    pre.appendChild(code);
  
    if (typeof onSourceClick === 'function') {
      let handler = onSourceClick;
      pre.style.cursor = 'pointer';
      pre.addEventListener('click', function() {
        handler();
      });
    }
  
    return pre;
  }
  
  export { createCode };
  