gendiff-pdronenko/dist/renderers/visualRender.js

Compares two configuration files and shows a difference.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _lodash = require("lodash");

const genSpaces = depth => ' '.repeat(depth * 4);

const stringify = (data, depth) => {
  if (typeof data !== 'object') return data;
  const entriesString = Object.entries(data).map(([key, value]) => `${genSpaces(depth)}    ${key}: ${value}`).join('\n');
  return `{\n${entriesString}\n${genSpaces(depth)}}`;
};

const buildLine = sign => ({
  depth,
  key,
  value
}) => {
  const newValue = stringify(value, depth + 1);
  return `${genSpaces(depth)}  ${sign} ${key}: ${newValue}`;
};

const visualActions = {
  unchanged: buildLine(' '),
  added: buildLine('+'),
  deleted: buildLine('-'),
  nested: ({
    key,
    depth,
    visualRender,
    children
  }) => {
    const newValue = visualRender(children, depth + 1);
    return `${genSpaces(depth)}    ${key}: ${newValue}`;
  },
  changed: ({
    addedValue,
    deletedValue,
    ...rest
  }) => {
    const deletedLine = buildLine('-')({
      value: deletedValue,
      ...rest
    });
    const addedLine = buildLine('+')({
      value: addedValue,
      ...rest
    });
    return [deletedLine, addedLine];
  }
};

const visualRender = (astDiff, depth = 0) => {
  const resultString = astDiff.map(node => visualActions[node.type]({
    visualRender,
    depth,
    ...node
  }));
  const joinedResult = (0, _lodash.flatten)(resultString).join('\n');
  return `{\n${joinedResult}\n${genSpaces(depth)}}`;
};

var _default = visualRender;
exports.default = _default;
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