main: 增强会话功能,支持消息管理和接口文档
- 添加 `last_message_id` 字段至 `chat_sessions` 表,更新其关联索引 - 实现会话更新接口,支持修改名称与状态并添加验证逻辑 - 增加会话列表接口,支持状态过滤与关键字查询 - 提供会话和消息相关的资源类和请求验证类 - 扩展 `ChatService` 服务层逻辑以处理会话更新和消息附加 - 编写测试用例以验证新功能的正确性 - 增加接口文档及 OpenAPI 规范文件,覆盖新增功能 - 更新数据库播种器,添加默认用户
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@@ -5,8 +5,9 @@ namespace App\Http\Controllers;
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use App\Exceptions\ChatSessionStatusException;
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use App\Http\Requests\AppendMessageRequest;
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use App\Http\Requests\CreateSessionRequest;
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use App\Http\Requests\UpdateSessionRequest;
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use App\Http\Resources\ChatSessionResource;
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use App\Http\Resources\MessageResource;
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use App\Models\Message;
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use App\Services\ChatService;
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use Illuminate\Http\JsonResponse;
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use Illuminate\Http\Request;
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@@ -17,13 +18,26 @@ class ChatSessionController extends Controller
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{
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}
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/**
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* 存储新的会话。
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*
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* @param CreateSessionRequest $request 包含会话信息的请求实例。
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* @return JsonResponse 返回包含新创建会话信息的 JSON 响应,状态码为 201。
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*/
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public function store(CreateSessionRequest $request): JsonResponse
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{
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$session = $this->service->createSession($request->input('session_name'));
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return response()->json($session, 201);
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return (new ChatSessionResource($session))->response()->setStatusCode(201);
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}
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/**
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* 追加一条消息。
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*
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* @param string $sessionId 会话 ID。
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* @param AppendMessageRequest $request 追加消息的请求实例。
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* @return JsonResponse 添加消息的响应,包含添加的消息信息。
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*/
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public function append(string $sessionId, AppendMessageRequest $request): JsonResponse
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{
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try {
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@@ -38,6 +52,13 @@ class ChatSessionController extends Controller
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return (new MessageResource($message))->response()->setStatusCode(201);
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}
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/**
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* 获取指定会话的消息列表。
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*
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* @param Request $request 包含查询参数的请求实例,其中包括 after_seq 和 limit。
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* @param string $sessionId 会话的唯一标识符。
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* @return JsonResponse 返回包含消息列表的 JSON 响应。
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*/
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public function listMessages(Request $request, string $sessionId): JsonResponse
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{
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$afterSeq = (int) $request->query('after_seq', 0);
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@@ -48,4 +69,44 @@ class ChatSessionController extends Controller
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return MessageResource::collection($messages)->response();
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}
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/**
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* 获取会话列表。
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*
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* @param Request $request 获取会话列表的请求实例。
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* @return JsonResponse 获取的会话列表的 JSON 响应。
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*/
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public function index(Request $request): JsonResponse
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{
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$page = (int) $request->query('page', 1);
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$perPage = (int) $request->query('per_page', 15);
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$perPage = $perPage > 0 && $perPage <= 100 ? $perPage : 15;
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$filter = [
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'status' => $request->query('status'),
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'q' => $request->query('q'),
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];
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$paginator = $this->service->listSessions($filter, $page, $perPage);
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return ChatSessionResource::collection($paginator)->response();
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}
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/**
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* 更新会话。
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*
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* @param string $sessionId 会话的唯一标识符。
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* @param UpdateSessionRequest $request 更新会话的请求实例。
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* @return JsonResponse 更新后的会话的 JSON 响应。
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*/
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public function update(string $sessionId, UpdateSessionRequest $request): JsonResponse
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{
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try {
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$session = $this->service->updateSession($sessionId, $request->validated());
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} catch (ChatSessionStatusException $e) {
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return response()->json(['message' => $e->getMessage()], 403);
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}
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return (new ChatSessionResource($session))->response();
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}
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}
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42
app/Http/Requests/UpdateSessionRequest.php
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42
app/Http/Requests/UpdateSessionRequest.php
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@@ -0,0 +1,42 @@
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<?php
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namespace App\Http\Requests;
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use App\Enums\ChatSessionStatus;
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use Illuminate\Foundation\Http\FormRequest;
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use Illuminate\Validation\Rule;
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class UpdateSessionRequest extends FormRequest
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{
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public function authorize(): bool
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{
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return true;
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}
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/**
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* @return array<string, mixed>
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*/
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public function rules(): array
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{
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return [
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'session_name' => ['sometimes', 'string', 'min:1', 'max:255'],
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'status' => ['sometimes', 'string', Rule::in(ChatSessionStatus::all())],
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];
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}
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protected function prepareForValidation(): void
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{
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if ($this->has('session_name') && is_string($this->input('session_name'))) {
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$this->merge(['session_name' => trim($this->input('session_name'))]);
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}
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}
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public function withValidator($validator)
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{
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$validator->after(function ($v) {
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if (! $this->has('session_name') && ! $this->has('status')) {
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$v->errors()->add('payload', '至少提供一个可更新字段');
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}
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});
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}
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}
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32
app/Http/Resources/ChatSessionResource.php
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32
app/Http/Resources/ChatSessionResource.php
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@@ -0,0 +1,32 @@
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<?php
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namespace App\Http\Resources;
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use Illuminate\Http\Request;
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use Illuminate\Http\Resources\Json\JsonResource;
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use Illuminate\Support\Str;
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/** @mixin \App\Models\ChatSession */
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class ChatSessionResource extends JsonResource
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{
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/**
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* @return array<string, mixed>
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*/
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public function toArray(Request $request): array
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{
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$preview = $this->last_message_content ?? '';
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return [
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'session_id' => $this->session_id,
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'session_name' => $this->session_name,
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'status' => $this->status,
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'last_seq' => $this->last_seq,
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'created_at' => $this->created_at,
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'updated_at' => $this->updated_at,
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'last_message_at' => $this->last_message_at,
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'last_message_preview' => $preview ? Str::limit($preview, 120) : '',
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'last_message_role' => $this->last_message_role,
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'last_message_type' => $this->last_message_type,
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];
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}
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}
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