52 lines
1.4 KiB
Markdown
52 lines
1.4 KiB
Markdown
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# Home Assistant Outbound Integration
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本文档说明当前 Python 项目中已经迁入的 Home Assistant outbound integration layer。
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这里的 outbound 指：
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- 由当前 app 主动调用 Home Assistant
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当前不包含：
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- `/homeassistant/publish`
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- Home Assistant inbound command gateway
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- Home Assistant 驱动当前 app 的入站消息路由
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## 当前已支持能力
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当前 `app/integrations/homeassistant.py` 提供一个轻量的 `HomeAssistantClient`，已支持：
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- 发布 / 更新 sensor state
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- `POST /api/states/{entity_id}`
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- 触发 Home Assistant webhook
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- `POST /api/webhook/{webhook_id}`
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这两项能力是按 legacy Go 中 `util/homeassistantutil/homeassistantutil.go` 的出站行为迁入的。
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## 当前配置
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当前 outbound adapter 依赖以下配置：
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- `HOME_ASSISTANT_BASE_URL`
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- `HOME_ASSISTANT_AUTH_TOKEN`
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- `HOME_ASSISTANT_TIMEOUT_SECONDS`
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如果缺少必要配置，client 会直接抛出配置错误，而不是静默跳过。
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## 错误处理策略
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当前策略保持保守和简单：
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- 配置缺失：抛出 `HomeAssistantConfigError`
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- 参数明显非法：抛出 `ValueError`
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- Home Assistant 返回非 200/201：抛出 `HomeAssistantRequestError`
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- 网络请求失败：抛出 `HomeAssistantRequestError`
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当前还没有做：
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- 自动重试
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- 熔断
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- 更复杂的 backoff 策略
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这一轮重点是先把 app -> Home Assistant 的出站契约和可复用结构迁进来。
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