| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | const diff_1 = require("diff");
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| 4 | const deep_diff_1 = require("deep-diff");
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| 5 | const chalk_1 = require("chalk");
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| 6 | function diff(firstItem, secondItem) {
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| 7 | if (typeof firstItem === "string") {
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| 8 | return diffString(firstItem, secondItem);
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| 9 | }
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| 10 | const diffs = deep_diff_1.diff(firstItem, secondItem) || [];
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| 11 | return buildDiff(diffs);
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| 12 | }
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| 13 | exports.diff = diff;
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| 14 | function diffString(firstString, secondString) {
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| 15 | if (firstString === secondString) {
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| 16 | return "no differences";
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| 17 | }
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| 18 | else if (!firstString) {
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| 19 | return chalk_1.default.green(secondString);
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| 20 | }
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| 21 | else if (!secondString) {
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| 22 | return chalk_1.default.red(firstString);
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| 23 | }
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| 24 | const diffs = /\s/.test(firstString) || /\s/.test(secondString)
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| 25 | ? diff_1.diffWords(firstString, secondString)
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| 26 | : diff_1.diffChars(firstString, secondString);
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| 27 | return diffs.map(styleDiffItem).join("");
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| 28 | }
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| 29 | function styleDiffItem(diffItem) {
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| 30 | if (diffItem.added) {
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| 31 | return chalk_1.default.green(diffItem.value);
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| 32 | }
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| 33 | if (diffItem.removed) {
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| 34 | return chalk_1.default.red(diffItem.value);
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| 35 | }
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| 36 | return diffItem.value;
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| 37 | }
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| 38 | function buildDiff(diffs) {
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| 39 | if (diffs.every(d => d.path === undefined)) {
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| 40 | return buildNonObjectDiff(diffs);
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| 41 | }
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| 42 | return buildObjectDiff(diffs);
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| 43 | }
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| 44 | function buildNonObjectDiff(diffs) {
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| 45 | if (diffs.length === 0) {
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| 46 | return "no differences";
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| 47 | }
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| 48 | else if (diffs.length === 1) {
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| 49 | const onlyDiff = diffs[0];
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| 50 | return diffString(JSON.stringify(onlyDiff.lhs), JSON.stringify(onlyDiff.rhs));
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| 51 | }
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| 52 | else {
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| 53 | return `[\n${diffs
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| 54 | .map(diffItem => buildDiff([diffItem]))
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| 55 | .join("\n")}\n]`;
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| 56 | }
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| 57 | }
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| 58 | function buildObjectDiff(diffs, depth = 1) {
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| 59 | const padding = new Array(depth + 1).join(" ");
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| 60 | const deeperDiffs = groupDiffsByProperty(diffs, depth);
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| 61 | const properties = diffs
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| 62 | .filter(diffItem => diffItem.path.length === depth)
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| 63 | .map(diffItem => stringifyDiffProp(diffItem, padding))
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| 64 | .concat(Object.keys(deeperDiffs).map(key => {
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| 65 | const diffItems = deeperDiffs[key];
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| 66 | return ` ${padding}${diffItems[0].path[depth - 1]}: ${buildObjectDiff(diffItems, depth + 1)}`;
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| 67 | }))
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| 68 | .join(",\n");
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| 69 | return `{\n` + properties + `\n${depth === 1 ? "" : padding}}`;
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| 70 | }
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| 71 | function groupDiffsByProperty(diffs, depth) {
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| 72 | return diffs
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| 73 | .filter(diffItem => diffItem.path && diffItem.path.length > depth)
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| 74 | .reduce((concat, diffItem) => {
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| 75 | const prop = diffItem.path[depth];
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| 76 | const value = concat[prop];
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| 77 | concat[prop] = value ? [...value, diffItem] : [diffItem];
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| 78 | return concat;
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| 79 | }, {});
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| 80 | }
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| 81 | function buildDiffProp(diffInfo, value, padding) {
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| 82 | return `${padding}${diffInfo.path[diffInfo.path.length - 1] || ""}: ${typeof value === "string" ? `"${value}"` : JSON.stringify(value)}`;
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| 83 | }
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| 84 | function safeToString(val) {
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| 85 | if (val && val.toString) {
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| 86 | return val.toString();
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| 87 | }
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| 88 | return String(val).toString();
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| 89 | }
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| 90 | function stringifyDiffProp(diffInfo, padding) {
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| 91 | if (diffInfo.kind === "N") {
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| 92 | return chalk_1.default.green(`+ ${buildDiffProp(diffInfo, diffInfo.rhs, padding)}`);
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| 93 | }
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| 94 | else if (diffInfo.kind === "D") {
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| 95 | return chalk_1.default.red(`- ${buildDiffProp(diffInfo, diffInfo.lhs, padding)}`);
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| 96 | }
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| 97 | else if (diffInfo.kind === "E") {
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| 98 | return ` ${buildDiffProp(diffInfo, diffString(safeToString(diffInfo.lhs), safeToString(diffInfo.rhs)), padding)}`;
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| 99 | }
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| 100 | }
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| 101 | |
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