# 浏览器 JSON 复杂字段兼容 Implementation Plan

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** 让旧 WinForms 浏览器桥接能够把任意对象或数组字段保留为紧凑 JSON 字符串，并继续安全转换为 `DataTable`。

**Architecture:** 在 `Lskj.Util.JsonUtil` 增加一个只供明确调用方选用的转换入口：先扫描整批 JSON 行，确定复杂列，再把这些列统一字符串化，最后复用 Newtonsoft.Json 原有 `DataTableConverter`。`Lskj.Control` 只在网页右键和返回行两个边界调用新入口，其他 JSON 转换和 WPF 宿主保持不变。

**Tech Stack:** .NET Framework 4.0、C# 7.3、Newtonsoft.Json 13.0.1、`System.Data.DataTable`、MSBuild、无第三方测试框架的控制台回归测试程序。

## Global Constraints

- 保留对象和数组字段，不删除 `$styles` 或其他未来字段。
- 复杂值必须转换成无缩进的紧凑 JSON 字符串。
- 从未出现对象或数组的标量列继续使用现有 Newtonsoft.Json 类型推断。
- 不修改现有 `JsonUtil.ToDataTable` 和 `JsonUtil.ToDataRow` 的语义。
- 不修改全局 Newtonsoft.Json 设置，不替换项目中的其他 `DeserializeObject<DataTable>` 调用。
- 不修改 WPF、数据库、菜单查找、参数替换或 DLL 加载逻辑。
- 只接入 `BsOpenModuleHandler.OpenRightModule` 和 `BsOpenModuleHandler.AddReturnRow`。
- 现有两个目标源码文件只有 CRLF/LF 换行差异；执行前必须确认没有语义差异，再机械归一化，避免产生整文件噪声提交。

---

### Task 1: 建立回归测试并实现公共转换器

**Files:**
- Create: `插件库/Lskj.Util.Tests/Lskj.Util.Tests.csproj`
- Create: `插件库/Lskj.Util.Tests/Program.cs`
- Modify: `插件库/Lskj.Util/JsonUtil.cs:1-190`

**Interfaces:**
- Consumes: Newtonsoft.Json `JToken`、`JArray`、`JObject` 和现有 `DataTableConverter`。
- Produces: `public static DataTable JsonUtil.ToDataTablePreservingComplexValues(string json)`；接受顶层对象或对象数组，返回保留所有字段的 `DataTable`。

- [ ] **Step 1: 确认目标源码没有未提交的语义改动**

Run:

```bash
git diff --ignore-space-at-eol --exit-code -- \
  '插件库/Lskj.Util/JsonUtil.cs' \
  '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
```

Expected: exit code `0`，无输出。当前普通 `git diff --numstat` 显示的是 CRLF/LF 差异，不代表业务代码变化。

- [ ] **Step 2: 机械归一化两个目标源码的换行符**

只有 Step 1 成功后执行：

```bash
perl -pi -e 's/\r$//' \
  '插件库/Lskj.Util/JsonUtil.cs' \
  '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
git diff --check -- \
  '插件库/Lskj.Util/JsonUtil.cs' \
  '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
```

Expected: `git diff --check` 无输出；此时两个文件不再显示整文件换行差异。

- [ ] **Step 3: 创建不依赖测试框架的回归测试项目**

Create `插件库/Lskj.Util.Tests/Lskj.Util.Tests.csproj`:

```xml
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProjectGuid>{8E501869-816F-4E3E-81EE-A3BF9C223D61}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>Lskj.Util.Tests</RootNamespace>
    <AssemblyName>Lskj.Util.Tests</AssemblyName>
    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <OutputPath>bin\Debug\</OutputPath>
    <PlatformTarget>AnyCPU</PlatformTarget>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System" />
    <Reference Include="System.Core" />
    <Reference Include="System.Data" />
    <Reference Include="Newtonsoft.Json, Version=13.0.1.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
      <SpecificVersion>False</SpecificVersion>
      <HintPath>..\..\引用DLL\Newtonsoft.Json.dll</HintPath>
      <Private>True</Private>
    </Reference>
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.cs" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\Lskj.Util\Lskj.Util.csproj">
      <Project>{A51BF642-6543-4DE3-8948-83F558B72BD4}</Project>
      <Name>Lskj.Util</Name>
    </ProjectReference>
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>
```

Create `插件库/Lskj.Util.Tests/Program.cs`:

```csharp
using Lskj.Util;
using Newtonsoft.Json;
using System;
using System.Data;

namespace Lskj.Util.Tests
{
    internal static class Program
    {
        private static int Main()
        {
            try
            {
                PreservesStylesObjectAsCompactJson();
                PreservesArrayAsCompactJson();
                NormalizesEveryValueInAMixedComplexColumn();
                LeavesScalarColumnsEquivalentToExistingConverter();
                AcceptsSingleObject();
                RejectsInvalidTopLevelValues();
                Console.WriteLine("PASS: JsonUtil complex-value conversion tests");
                return 0;
            }
            catch (Exception ex)
            {
                Console.Error.WriteLine(ex);
                return 1;
            }
        }

        private static void PreservesStylesObjectAsCompactJson()
        {
            const string json = "[{\"id\":1,\"$styles\":{\"rowstyle\":\"{color:'#FFFF00','background-color':'#FF0000'}\"}}]";
            DataTable table = JsonUtil.ToDataTablePreservingComplexValues(json);
            AssertEqual(1, table.Rows.Count, "styles row count");
            AssertEqual("{\"rowstyle\":\"{color:'#FFFF00','background-color':'#FF0000'}\"}",
                table.Rows[0]["$styles"].ToString(), "styles JSON");
        }

        private static void PreservesArrayAsCompactJson()
        {
            const string json = "[{\"id\":1,\"items\":[{\"code\":\"A\"},{\"code\":\"B\"}]}]";
            DataTable table = JsonUtil.ToDataTablePreservingComplexValues(json);
            AssertEqual("[{\"code\":\"A\"},{\"code\":\"B\"}]",
                table.Rows[0]["items"].ToString(), "array JSON");
        }

        private static void NormalizesEveryValueInAMixedComplexColumn()
        {
            const string json = "["
                + "{\"id\":1,\"payload\":5},"
                + "{\"id\":2,\"payload\":{\"code\":\"A\"}},"
                + "{\"id\":3,\"payload\":[1,2]},"
                + "{\"id\":4,\"payload\":null},"
                + "{\"id\":5,\"payload\":\"ready\"}]";
            DataTable table = JsonUtil.ToDataTablePreservingComplexValues(json);
            AssertEqual(typeof(string), table.Columns["payload"].DataType, "mixed column type");
            AssertEqual("5", table.Rows[0]["payload"].ToString(), "numeric scalar text");
            AssertEqual("{\"code\":\"A\"}", table.Rows[1]["payload"].ToString(), "object text");
            AssertEqual("[1,2]", table.Rows[2]["payload"].ToString(), "array text");
            AssertTrue(table.Rows[3].IsNull("payload"), "null remains null");
            AssertEqual("ready", table.Rows[4]["payload"].ToString(), "string remains string");
        }

        private static void LeavesScalarColumnsEquivalentToExistingConverter()
        {
            const string json = "[{\"id\":1,\"title\":\"A\",\"active\":true},{\"id\":2,\"title\":\"B\",\"active\":false}]";
            DataTable expected = JsonConvert.DeserializeObject<DataTable>(json);
            DataTable actual = JsonUtil.ToDataTablePreservingComplexValues(json);
            AssertEqual(expected.Columns.Count, actual.Columns.Count, "scalar column count");
            AssertEqual(expected.Rows.Count, actual.Rows.Count, "scalar row count");
            foreach (DataColumn column in expected.Columns)
            {
                AssertEqual(column.DataType, actual.Columns[column.ColumnName].DataType,
                    "scalar column type " + column.ColumnName);
                for (int rowIndex = 0; rowIndex < expected.Rows.Count; rowIndex++)
                {
                    AssertEqual(expected.Rows[rowIndex][column.ColumnName],
                        actual.Rows[rowIndex][column.ColumnName],
                        "scalar value " + column.ColumnName + " row " + rowIndex);
                }
            }
        }

        private static void AcceptsSingleObject()
        {
            const string json = "{\"ProductId\":\"P001\",\"meta\":{\"source\":\"web\"}}";
            DataTable table = JsonUtil.ToDataTablePreservingComplexValues(json);
            AssertEqual(1, table.Rows.Count, "single object row count");
            AssertEqual("P001", table.Rows[0]["ProductId"].ToString(), "single object scalar");
            AssertEqual("{\"source\":\"web\"}", table.Rows[0]["meta"].ToString(), "single object nested JSON");
        }

        private static void RejectsInvalidTopLevelValues()
        {
            AssertThrows<ArgumentException>(delegate { JsonUtil.ToDataTablePreservingComplexValues(" "); }, "empty input");
            AssertThrows<JsonReaderException>(delegate { JsonUtil.ToDataTablePreservingComplexValues("{"); }, "invalid JSON");
            AssertThrows<JsonSerializationException>(delegate { JsonUtil.ToDataTablePreservingComplexValues("[1]"); }, "non-object row");
        }

        private static void AssertThrows<TException>(Action action, string name) where TException : Exception
        {
            try { action(); }
            catch (TException) { return; }
            throw new InvalidOperationException("Expected " + typeof(TException).Name + ": " + name);
        }

        private static void AssertTrue(bool value, string name)
        {
            if (!value) throw new InvalidOperationException("Assertion failed: " + name);
        }

        private static void AssertEqual<T>(T expected, T actual, string name)
        {
            if (!object.Equals(expected, actual))
            {
                throw new InvalidOperationException(name + ": expected <" + expected + ">, actual <" + actual + ">");
            }
        }
    }
}
```

- [ ] **Step 4: 构建测试项目并确认它先失败**

Run in Windows PowerShell from `E:\lserp_project\lserp_cs_6.0`:

```powershell
$msbuild = Get-ChildItem "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\*\MSBuild\Current\Bin\MSBuild.exe" |
    Select-Object -First 1 -ExpandProperty FullName
if (-not $msbuild) { $msbuild = "$env:WINDIR\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" }
& $msbuild "插件库\Lskj.Util.Tests\Lskj.Util.Tests.csproj" /t:Rebuild /p:Configuration=Debug /p:Platform=AnyCPU
```

Expected: build fails with `CS0117` because `JsonUtil.ToDataTablePreservingComplexValues` does not exist yet. Dependency or SDK errors do not satisfy this step。

- [ ] **Step 5: 实现复杂字段归一化方法**

Add `using System.Globalization;` to `插件库/Lskj.Util/JsonUtil.cs`, then add this method to `JsonUtil` without changing existing methods:

```csharp
public static DataTable ToDataTablePreservingComplexValues(string json)
{
    if (string.IsNullOrWhiteSpace(json))
    {
        throw new ArgumentException("网页行 JSON 不能为空。", "json");
    }

    JToken root = JToken.Parse(json);
    JArray rows;
    if (root.Type == JTokenType.Array)
    {
        rows = (JArray)root;
    }
    else if (root.Type == JTokenType.Object)
    {
        rows = new JArray(root);
    }
    else
    {
        throw new JsonSerializationException("网页行 JSON 的顶层必须是对象或对象数组。");
    }

    HashSet<string> complexColumns = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
    foreach (JToken rowToken in rows)
    {
        if (rowToken.Type != JTokenType.Object)
        {
            throw new JsonSerializationException("网页行 JSON 数组中的每一项都必须是对象。");
        }

        foreach (JProperty property in ((JObject)rowToken).Properties())
        {
            if (property.Value.Type == JTokenType.Object || property.Value.Type == JTokenType.Array)
            {
                complexColumns.Add(property.Name);
            }
        }
    }

    foreach (JObject row in rows.Children<JObject>())
    {
        foreach (JProperty property in row.Properties().ToList())
        {
            if (!complexColumns.Contains(property.Name)
                || property.Value.Type == JTokenType.Null
                || property.Value.Type == JTokenType.Undefined)
            {
                continue;
            }

            string text;
            if (property.Value.Type == JTokenType.Object || property.Value.Type == JTokenType.Array)
            {
                text = property.Value.ToString(Formatting.None);
            }
            else if (property.Value.Type == JTokenType.String)
            {
                text = property.Value.Value<string>();
            }
            else
            {
                JValue scalar = property.Value as JValue;
                text = scalar == null || scalar.Value == null
                    ? null
                    : Convert.ToString(scalar.Value, CultureInfo.InvariantCulture);
            }

            property.Value = text == null ? JValue.CreateNull() : new JValue(text);
        }
    }

    return JsonConvert.DeserializeObject<DataTable>(rows.ToString(Formatting.None));
}
```

- [ ] **Step 6: 构建并运行转换级回归测试**

```powershell
& $msbuild "插件库\Lskj.Util.Tests\Lskj.Util.Tests.csproj" /t:Rebuild /p:Configuration=Debug /p:Platform=AnyCPU
if ($LASTEXITCODE -ne 0) { throw "Lskj.Util.Tests build failed" }
& "插件库\Lskj.Util.Tests\bin\Debug\Lskj.Util.Tests.exe"
if ($LASTEXITCODE -ne 0) { throw "Lskj.Util.Tests failed" }
```

Expected: build succeeds and executable prints `PASS: JsonUtil complex-value conversion tests`.

- [ ] **Step 7: 提交公共转换器和回归测试**

```bash
git add \
  '插件库/Lskj.Util/JsonUtil.cs' \
  '插件库/Lskj.Util.Tests/Lskj.Util.Tests.csproj' \
  '插件库/Lskj.Util.Tests/Program.cs'
git diff --cached --check
git commit -m 'fix(util): preserve complex JSON values in data tables'
```

Expected: commit only contains the new test project and the focused `JsonUtil` method.

---

### Task 2: 在旧浏览器桥接的两个入口接入转换器

**Files:**
- Modify: `插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs:101-116`
- Modify: `插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs:322-334`

**Interfaces:**
- Consumes: `JsonUtil.ToDataTablePreservingComplexValues(string json)` from Task 1。
- Produces: `OpenRightModule` 和 `AddReturnRow` 对任意对象/数组字段的兼容行为；其他菜单及模块调用接口不变。

- [ ] **Step 1: 将右键入口切换到公共转换器**

Replace:

```csharp
DataTable dataTable = JsonConvert.DeserializeObject<DataTable>(arrayItem);
```

with:

```csharp
DataTable dataTable = JsonUtil.ToDataTablePreservingComplexValues(arrayItem);
```

Do not change the `BaseImpl.GetDataRowResult` query, `GridRightMenuModel`, `DynamicModel` or `menu.ExecRightMenu` calls.

- [ ] **Step 2: 将网页返回行入口切换到公共转换器并删除冗余包装**

Replace:

```csharp
JObject rowObject = JsonConvert.DeserializeObject<JObject>(rowdata);
JArray jArray = new JArray();
jArray.Add(rowObject);
DataTable dataTable = JsonConvert.DeserializeObject<DataTable>(JsonConvert.SerializeObject(jArray));
```

with:

```csharp
DataTable dataTable = JsonUtil.ToDataTablePreservingComplexValues(rowdata);
```

Remove the now-unused `using Newtonsoft.Json;` and `using Newtonsoft.Json.Linq;`. Keep product-prefix renaming and `StaticControl.ReturnRowLisy.Add` unchanged.

- [ ] **Step 3: 静态检查浏览器桥接范围**

```bash
rg -n 'DeserializeObject\s*<\s*DataTable\s*>|ToDataTablePreservingComplexValues' \
  '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
git diff --check -- '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
```

Expected: only two `ToDataTablePreservingComplexValues` calls remain in this file；没有直接的 `DeserializeObject<DataTable>`，且 `git diff --check` 无输出。

- [ ] **Step 4: 重跑转换级测试并构建 Lskj.Control**

```powershell
& "插件库\Lskj.Util.Tests\bin\Debug\Lskj.Util.Tests.exe"
if ($LASTEXITCODE -ne 0) { throw "Lskj.Util.Tests failed" }
& $msbuild "插件库\Lskj.Control\Lskj.Control.csproj" /t:Rebuild /p:Configuration=Debug /p:Platform=AnyCPU
if ($LASTEXITCODE -ne 0) { throw "Lskj.Control build failed" }
```

Expected: tests print `PASS`；`Lskj.Control` build succeeds without new warnings or errors and refreshes `Debug\Lskj.Control.dll` plus referenced `Lskj.Util.dll`.

- [ ] **Step 5: 提交浏览器桥接改动**

```bash
git add '插件库/Lskj.Control/BrowserSetting/BsOpenModuleHandler.cs'
git diff --cached --check
git commit -m 'fix(browser): accept nested values in row callbacks'
```

Expected: commit only changes the two intended browser callback conversions and removes the two unused Newtonsoft `using` directives.

---

### Task 3: 最终构建与业务验收交接

**Files:**
- Verify: `Debug/Lskj.Util.dll`
- Verify: `Debug/Lskj.Control.dll`
- Verify: `Debug/Ls_NERP.exe`

**Interfaces:**
- Consumes: Task 1 的转换器和 Task 2 的浏览器接入。
- Produces: 可由用户分别从旧 WinForms 和 WPF 宿主进行验收的 Debug 运行目录。

- [ ] **Step 1: 执行最终自动验证**

```powershell
& $msbuild "插件库\Lskj.Util.Tests\Lskj.Util.Tests.csproj" /t:Rebuild /p:Configuration=Debug /p:Platform=AnyCPU
if ($LASTEXITCODE -ne 0) { throw "Lskj.Util.Tests build failed" }
& "插件库\Lskj.Util.Tests\bin\Debug\Lskj.Util.Tests.exe"
if ($LASTEXITCODE -ne 0) { throw "Lskj.Util.Tests failed" }
& $msbuild "插件库\Lskj.Control\Lskj.Control.csproj" /t:Rebuild /p:Configuration=Debug /p:Platform=AnyCPU
if ($LASTEXITCODE -ne 0) { throw "Lskj.Control build failed" }
Get-Item "Debug\Lskj.Util.dll", "Debug\Lskj.Control.dll" |
    Select-Object FullName, Length, LastWriteTime
```

Expected: both builds succeed, test executable prints `PASS`, and both runtime DLL timestamps reflect the current build.

- [ ] **Step 2: 核对最终差异和提交历史**

```bash
git diff --check
git status --short
git log -4 --oneline --decorate
```

Expected: no uncommitted implementation changes；历史包含设计提交、公共转换器提交和浏览器桥接提交。构建输出和原有忽略文件不应进入 Git。

- [ ] **Step 3: 交给用户执行业务验收**

Provide this exact checklist:

```text
1. 从 WPF 宿主启动，进入同一待办任务页面并点击“待办任务”。
2. 确认不再出现 Path '[0].$styles' / StartObject 的 DataTable 反序列化错误。
3. 确认右键配置继续解析到 PUR_4004，并正常进入原有客户端模块加载流程。
4. 使用一个不包含对象/数组字段的旧网页右键功能，确认行为未变化。
5. 如可用，再从旧 WinForms 入口重复步骤 1-4，确认两个宿主行为一致。
6. 验证网页返回行功能，确认 ProductId 前缀和原有回填逻辑未变化。
```

No additional source commit is required for this manual acceptance step.