64 lines
1.9 KiB
Markdown
64 lines
1.9 KiB
Markdown
# 前端对话组件(Chat Widget)
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对应 EPIC #11「④ LLM 报警解释 / 交接班 / NL 查询」子任务 **#77**(0.5d):
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驾驶舱/移动端**对话组件**及配套后端 API(标准库实现,无框架依赖)。
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## 文件
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```
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web/chat/
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├── chat_api.py 对话后端 API(http.server):场景分发 + 统一 JSON
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├── chat_widget.html 前端对话组件(内联 HTML/CSS/JS,深色主题对齐驾驶舱)
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├── tests/
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│ └── test_chat_api.py 场景分发 / 端点 / 错误处理测试
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└── README.md
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```
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## 快速运行
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```bash
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# 启动对话 API 服务(默认 127.0.0.1:8080;runner 未注入时仅返回健康/页面)
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python chat_api.py --host 127.0.0.1 --port 8080
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```
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浏览器打开 `http://127.0.0.1:8080/` 即见对话组件。
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## API
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| 方法 | 路径 | 说明 |
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| --- | --- | --- |
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| GET | `/` | 对话组件页面(chat_widget.html) |
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| GET | `/api/health` | 健康检查 |
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| POST | `/api/chat` | 对话接口(见下) |
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`POST /api/chat` 请求体:
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```json
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{ "question": "氯气流量最近1小时趋势", "scenario": "nl_query", "confidence": 1.0 }
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```
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`scenario`:`alarm_explain`(报警解释)/ `shift_handover`(交接班摘要)/
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`nl_query`(NL 查询,缺省);未知场景降级 `nl_query`。
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响应(统一 JSON):
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```json
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{ "answer": "...", "route": "local", "answer_id": "...",
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"scenario": "nl_query", "needs_human": false }
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```
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## 与场景层集成
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`chat_api.dispatch(runner, request)` 按场景调用 runner 的
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`explain_alarm / generate_handover / query_cockpit`(与
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`templates/ti-cl4/llm-scenarios.TiScenarioRunner` 对接);
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runner 可注入(`make_server(host, port, runner=...)`),便于联调与替换实现。
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## 测试
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```bash
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python -m unittest discover -s tests -p "test_*.py"
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```
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覆盖:三场景分发、空 question、未知场景降级、异常 → error JSON、
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GET / 与 /api/health、POST /api/chat、非法 JSON 400、404。
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