# Project Upload File Delete Backend Implementation Plan

> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.

**Goal:** 为项目上传文件列表新增后端删除能力，支持删除已解析成功的文件、清理本地流水，并把上传记录状态更新为 `deleted`。

**Architecture:** 在 `CcdiFileUploadController` 新增按记录 ID 删除接口，由 Controller 获取当前登录用户 ID 并传给 `ICcdiFileUploadService`。Service 负责查询记录、校验状态、调用 `LsfxAnalysisClient.deleteFiles`、删除 `ccdi_bank_statement` 中对应 `logId` 的流水，并更新 `ccdi_file_upload_record.file_status` 为 `deleted`；统计 VO 同步扩展 `deleted` 状态。

**Tech Stack:** Java 21, Spring Boot 3, MyBatis Plus, JUnit 5, Mockito, Maven

---

### Task 1: 补齐删除接口控制器契约

**Files:**
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadController.java`
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/ICcdiFileUploadService.java`
- Test: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadControllerTest.java`

**Step 1: Write the failing test**

在 `CcdiFileUploadControllerTest` 中新增测试，验证删除接口会读取当前登录用户 ID 并调用 Service：

```java
@Test
void deleteFile_shouldUseCurrentLoginUserId() {
    try (MockedStatic<SecurityUtils> mocked = mockStatic(SecurityUtils.class)) {
        mocked.when(SecurityUtils::getUserId).thenReturn(9527L);
        when(fileUploadService.deleteFileUploadRecord(123L, 9527L))
            .thenReturn("删除成功");

        AjaxResult result = controller.deleteFile(123L);

        assertEquals(200, result.get("code"));
        assertEquals("删除成功", result.get("msg"));
        verify(fileUploadService).deleteFileUploadRecord(123L, 9527L);
    }
}
```

**Step 2: Run test to verify it fails**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadControllerTest#deleteFile_shouldUseCurrentLoginUserId
```

Expected:

- `FAIL`
- 原因是 `CcdiFileUploadController` 中还没有 `deleteFile` 方法或 `ICcdiFileUploadService` 中还没有 `deleteFileUploadRecord` 方法

**Step 3: Write minimal implementation**

在接口和控制器中补最小实现：

```java
String deleteFileUploadRecord(Long id, Long operatorUserId);
```

```java
@DeleteMapping("/{id}")
@Operation(summary = "删除上传文件", description = "按上传记录ID删除文件并清理流水")
public AjaxResult deleteFile(@PathVariable Long id) {
    Long userId = SecurityUtils.getUserId();
    String message = fileUploadService.deleteFileUploadRecord(id, userId);
    return AjaxResult.success(message);
}
```

**Step 4: Run test to verify it passes**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadControllerTest#deleteFile_shouldUseCurrentLoginUserId
```

Expected:

- `PASS`

**Step 5: Commit**

```bash
git add ccdi-project/src/main/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadController.java ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/ICcdiFileUploadService.java ccdi-project/src/test/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadControllerTest.java
git commit -m "test: 补充上传文件删除接口控制器契约"
```

### Task 2: 实现删除成功主链路

**Files:**
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java`
- Test: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java`

**Step 1: Write the failing test**

在 `CcdiFileUploadServiceImplTest` 中新增成功链路测试：

```java
@Test
void deleteFileUploadRecord_shouldDeletePlatformFileBankStatementsAndMarkDeleted() {
    CcdiFileUploadRecord record = buildRecord();
    record.setProjectId(PROJECT_ID);
    record.setLsfxProjectId(LSFX_PROJECT_ID);
    record.setLogId(LOG_ID);
    record.setFileStatus("parsed_success");

    when(recordMapper.selectById(RECORD_ID)).thenReturn(record);
    when(lsfxClient.deleteFiles(any())).thenReturn(buildDeleteFilesResponse());

    String result = service.deleteFileUploadRecord(RECORD_ID, 9527L);

    assertEquals("删除成功", result);
    verify(lsfxClient).deleteFiles(argThat(request ->
        request.getGroupId().equals(LSFX_PROJECT_ID)
            && request.getUserId().equals(9527)
            && request.getLogIds().length == 1
            && request.getLogIds()[0].equals(LOG_ID)
    ));
    verify(bankStatementMapper).deleteByProjectIdAndBatchId(PROJECT_ID, LOG_ID);
    verify(recordMapper).updateById(argThat(item ->
        RECORD_ID.equals(item.getId()) && "deleted".equals(item.getFileStatus())
    ));
}
```

**Step 2: Run test to verify it fails**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldDeletePlatformFileBankStatementsAndMarkDeleted
```

Expected:

- `FAIL`
- 原因是 `CcdiFileUploadServiceImpl` 中还没有 `deleteFileUploadRecord` 实现

**Step 3: Write minimal implementation**

在 `CcdiFileUploadServiceImpl` 中实现删除主链路：

```java
@Override
@Transactional
public String deleteFileUploadRecord(Long id, Long operatorUserId) {
    CcdiFileUploadRecord record = recordMapper.selectById(id);
    validateDeleteRecord(record);

    DeleteFilesRequest request = new DeleteFilesRequest();
    request.setGroupId(record.getLsfxProjectId());
    request.setLogIds(new Integer[]{record.getLogId()});
    request.setUserId(toUploadUserId(operatorUserId));

    DeleteFilesResponse response = lsfxClient.deleteFiles(request);
    if (response == null || Boolean.FALSE.equals(response.getSuccessResponse())) {
        throw new RuntimeException("流水分析平台删除文件失败");
    }

    bankStatementMapper.deleteByProjectIdAndBatchId(record.getProjectId(), record.getLogId());

    CcdiFileUploadRecord update = new CcdiFileUploadRecord();
    update.setId(record.getId());
    update.setFileStatus("deleted");
    recordMapper.updateById(update);
    return "删除成功";
}
```

同时补一个私有校验方法，仅先满足成功路径所需字段。

**Step 4: Run test to verify it passes**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldDeletePlatformFileBankStatementsAndMarkDeleted
```

Expected:

- `PASS`

**Step 5: Commit**

```bash
git add ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java
git commit -m "feat: 打通上传文件删除成功主链路"
```

### Task 3: 补齐删除前置校验与失败保护

**Files:**
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java`
- Test: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java`

**Step 1: Write the failing test**

为关键边界新增失败测试，至少覆盖“状态不允许删除”和“平台删除失败时不应更新本地状态”：

```java
@Test
void deleteFileUploadRecord_shouldRejectNonParsedSuccessStatus() {
    CcdiFileUploadRecord record = buildRecord();
    record.setFileStatus("parsed_failed");
    when(recordMapper.selectById(RECORD_ID)).thenReturn(record);

    RuntimeException exception = assertThrows(RuntimeException.class,
        () -> service.deleteFileUploadRecord(RECORD_ID, 9527L));

    assertTrue(exception.getMessage().contains("仅支持删除解析成功文件"));
}

@Test
void deleteFileUploadRecord_shouldStopWhenLsfxDeleteFails() {
    CcdiFileUploadRecord record = buildRecord();
    record.setFileStatus("parsed_success");
    record.setLogId(LOG_ID);
    record.setLsfxProjectId(LSFX_PROJECT_ID);
    when(recordMapper.selectById(RECORD_ID)).thenReturn(record);
    when(lsfxClient.deleteFiles(any())).thenThrow(new RuntimeException("lsfx delete failed"));

    assertThrows(RuntimeException.class, () -> service.deleteFileUploadRecord(RECORD_ID, 9527L));

    verify(bankStatementMapper, org.mockito.Mockito.never()).deleteByProjectIdAndBatchId(any(), any());
    verify(recordMapper, org.mockito.Mockito.never()).updateById(argThat(item ->
        "deleted".equals(item.getFileStatus())
    ));
}
```

**Step 2: Run test to verify it fails**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldRejectNonParsedSuccessStatus,CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldStopWhenLsfxDeleteFails
```

Expected:

- `FAIL`
- 原因是现有实现还没有完整的前置校验和失败保护

**Step 3: Write minimal implementation**

补全 Service 校验和异常处理：

```java
private void validateDeleteRecord(CcdiFileUploadRecord record) {
    if (record == null) {
        throw new RuntimeException("上传记录不存在");
    }
    if (!"parsed_success".equals(record.getFileStatus())) {
        if ("deleted".equals(record.getFileStatus())) {
            throw new RuntimeException("文件已删除，请勿重复操作");
        }
        throw new RuntimeException("仅支持删除解析成功文件");
    }
    if (record.getLsfxProjectId() == null) {
        throw new RuntimeException("缺少流水分析项目ID");
    }
    if (record.getLogId() == null) {
        throw new RuntimeException("缺少文件logId");
    }
}
```

不要吞掉平台删除异常，让事务直接回滚。

**Step 4: Run test to verify it passes**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldRejectNonParsedSuccessStatus,CcdiFileUploadServiceImplTest#deleteFileUploadRecord_shouldStopWhenLsfxDeleteFails
```

Expected:

- `PASS`

**Step 5: Commit**

```bash
git add ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java
git commit -m "test: 补齐上传文件删除校验与失败保护"
```

### Task 4: 扩展统计口径支持 `deleted`

**Files:**
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/domain/vo/CcdiFileUploadStatisticsVO.java`
- Modify: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java`
- Test: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java`

**Step 1: Write the failing test**

新增统计测试，验证 `deleted` 状态会被正确映射到 VO：

```java
@Test
void countByStatus_shouldIncludeDeletedCount() {
    when(recordMapper.countByStatus(PROJECT_ID)).thenReturn(List.of(
        Map.of("status", "uploading", "count", 1),
        Map.of("status", "deleted", "count", 2)
    ));

    CcdiFileUploadStatisticsVO result = service.countByStatus(PROJECT_ID);

    assertEquals(1L, result.getUploading());
    assertEquals(2L, result.getDeleted());
    assertEquals(3L, result.getTotal());
}
```

**Step 2: Run test to verify it fails**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#countByStatus_shouldIncludeDeletedCount
```

Expected:

- `FAIL`
- 原因是 `CcdiFileUploadStatisticsVO` 还没有 `deleted` 字段，或 `countByStatus` 还没有映射该状态

**Step 3: Write minimal implementation**

在 VO 和 Service 中补 `deleted` 字段及映射：

```java
private Long deleted;
```

```java
vo.setDeleted(0L);
case "deleted" -> vo.setDeleted(count);
```

**Step 4: Run test to verify it passes**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadServiceImplTest#countByStatus_shouldIncludeDeletedCount
```

Expected:

- `PASS`

**Step 5: Commit**

```bash
git add ccdi-project/src/main/java/com/ruoyi/ccdi/project/domain/vo/CcdiFileUploadStatisticsVO.java ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java
git commit -m "feat: 扩展上传文件统计支持已删除状态"
```

### Task 5: 跑后端回归验证

**Files:**
- Verify only: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadController.java`
- Verify only: `ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java`
- Verify only: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/controller/CcdiFileUploadControllerTest.java`
- Verify only: `ccdi-project/src/test/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImplTest.java`

**Step 1: Run focused tests**

Run:

```bash
mvn test -pl ccdi-project -am -Dtest=CcdiFileUploadControllerTest,CcdiFileUploadServiceImplTest
```

Expected:

- 全部 `PASS`

**Step 2: Run module compile**

Run:

```bash
mvn clean compile -pl ccdi-project -am
```

Expected:

- `BUILD SUCCESS`

**Step 3: Record manual API smoke checklist**

手工检查以下接口行为：

- `DELETE /ccdi/file-upload/{id}` 删除 `parsed_success` 记录返回成功
- 删除 `parsed_failed` 记录返回错误
- 重复删除 `deleted` 记录返回错误

**Step 4: Commit**

```bash
git add .
git commit -m "test: 完成上传文件删除后端回归验证"
```