// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++ (supporting code)
// | | |__ | | | | | | version 3.12.0
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// SPDX-FileCopyrightText: 2013 - 2025 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT

#include "doctest_compatibility.h"

#include <nlohmann/json.hpp>
using nlohmann::json;
#ifdef JSON_TEST_NO_GLOBAL_UDLS
 using namespace nlohmann::literals; // NOLINT(google-build-using-namespace)
#endif

TEST_CASE("JSON Merge Patch")
{
 SECTION("examples from RFC 7396")
 {
 SECTION("Section 1")
 {
 json document = R"({
 "a": "b",
 "c": {
 "d": "e",
 "f": "g"
 }
 })"_json;

 json const patch = R"({
 "a": "z",
 "c": {
 "f": null
 }
 })"_json;

 json expected = R"({
 "a": "z",
 "c": {
 "d": "e"
 }
 })"_json;

 document.merge_patch(patch);
 CHECK(document == expected);
 }

 SECTION("Section 3")
 {
 json document = R"({
 "title": "Goodbye!",
 "author": {
 "givenName": "John",
 "familyName": "Doe"
 },
 "tags": [
 "example",
 "sample"
 ],
 "content": "This will be unchanged"
 })"_json;

 json const patch = R"({
 "title": "Hello!",
 "phoneNumber": "+01-123-456-7890",
 "author": {
 "familyName": null
 },
 "tags": [
 "example"
 ]
 })"_json;

 json expected = R"({
 "title": "Hello!",
 "author": {
 "givenName": "John"
 },
 "tags": [
 "example"
 ],
 "content": "This will be unchanged",
 "phoneNumber": "+01-123-456-7890"
 })"_json;

 document.merge_patch(patch);
 CHECK(document == expected);
 }

 SECTION("Appendix A")
 {
 SECTION("Example 1")
 {
 json original = R"({"a":"b"})"_json;
 json const patch = R"({"a":"c"})"_json;
 json result = R"({"a":"c"})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 2")
 {
 json original = R"({"a":"b"})"_json;
 json const patch = R"({"b":"c"})"_json;
 json result = R"({"a":"b", "b":"c"})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 3")
 {
 json original = R"({"a":"b"})"_json;
 json const patch = R"({"a":null})"_json;
 json result = R"({})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 4")
 {
 json original = R"({"a":"b","b":"c"})"_json;
 json const patch = R"({"a":null})"_json;
 json result = R"({"b":"c"})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 5")
 {
 json original = R"({"a":["b"]})"_json;
 json const patch = R"({"a":"c"})"_json;
 json result = R"({"a":"c"})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 6")
 {
 json original = R"({"a":"c"})"_json;
 json const patch = R"({"a":["b"]})"_json;
 json result = R"({"a":["b"]})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 7")
 {
 json original = R"({"a":{"b": "c"}})"_json;
 json const patch = R"({"a":{"b":"d","c":null}})"_json;
 json result = R"({"a": {"b": "d"}})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 8")
 {
 json original = R"({"a":[{"b":"c"}]})"_json;
 json const patch = R"({"a":[1]})"_json;
 json result = R"({"a":[1]})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 9")
 {
 json original = R"(["a","b"])"_json;
 json const patch = R"(["c","d"])"_json;
 json result = R"(["c","d"])"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 10")
 {
 json original = R"({"a":"b"})"_json;
 json const patch = R"(["c"])"_json;
 json result = R"(["c"])"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 11")
 {
 json original = R"({"a":"foo"})"_json;
 json const patch = R"(null)"_json;
 json result = R"(null)"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 12")
 {
 json original = R"({"a":"foo"})"_json;
 json const patch = R"("bar")"_json;
 json result = R"("bar")"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 13")
 {
 json original = R"({"e":null})"_json;
 json const patch = R"({"a":1})"_json;
 json result = R"({"e":null,"a":1})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 14")
 {
 json original = R"([1,2])"_json;
 json const patch = R"({"a":"b","c":null})"_json;
 json result = R"({"a":"b"})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }

 SECTION("Example 15")
 {
 json original = R"({})"_json;
 json const patch = R"({"a":{"bb":{"ccc":null}}})"_json;
 json result = R"({"a":{"bb":{}}})"_json;

 original.merge_patch(patch);
 CHECK(original == result);
 }
 }
 }
}