43 lines
2.5 KiB
C#
43 lines
2.5 KiB
C#
using Evergreen.Health.Application.Health.Integrations.HomeAssistant;
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using Evergreen.Health.Application.Health.Policies;
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using Evergreen.Health.Application.Health.Scenes;
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using Microsoft.Extensions.Options;
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using System.Globalization;
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namespace Evergreen.Health.Application.Health.Devices.Environment;
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public sealed class IndoorEnvironmentReader
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{
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private readonly HomeAssistantEntityOptions _entities;
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private readonly TimeProvider _time;
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public IndoorEnvironmentReader(IOptions<HomeAssistantOptions> options, TimeProvider time)
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=> (_entities, _time) = (options.Value.Entities, time);
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public IndoorTemperatureSample Read(IReadOnlyDictionary<string, HomeAssistantState> states) =>
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ReadState(string.IsNullOrWhiteSpace(_entities.Temperature) ? null : states.GetValueOrDefault(_entities.Temperature));
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public IndoorTemperatureSample Read(IReadOnlyList<HomeAssistantState> states) =>
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ReadState(states.LastOrDefault(state =>
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string.Equals(state.EntityId, _entities.Temperature, StringComparison.OrdinalIgnoreCase)));
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private IndoorTemperatureSample ReadState(HomeAssistantState? state)
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{
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if (state is null || !DeviceActionRunner.IsAvailable(state))
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return new(null, null, false, "室内温度实体未配置或不可用") { Issue = IndoorTemperatureIssue.Unavailable };
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var observedAt = state.LastReported ?? state.LastUpdated;
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var now = _time.GetUtcNow();
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if (observedAt is null || now - observedAt > TimeSpan.FromMinutes(30) || observedAt > now.AddMinutes(1))
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return new(null, observedAt, false, "室内温度数据缺少有效时间或已过期") { Issue = IndoorTemperatureIssue.Stale };
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if (!double.TryParse(state.State, NumberStyles.Float, CultureInfo.InvariantCulture, out var celsius) ||
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!double.IsFinite(celsius))
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return new(null, observedAt, false, "室内温度数据无效") { Issue = IndoorTemperatureIssue.Invalid };
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var unit = state.GetStringAttribute("unit_of_measurement");
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if (unit is "°F" or "F") celsius = (celsius - 32) * 5 / 9;
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else if (!string.IsNullOrWhiteSpace(unit) && unit is not ("°C" or "C" or "℃"))
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return new(null, observedAt, false, "室内温度单位未识别") { Issue = IndoorTemperatureIssue.Invalid };
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if (celsius is < -20 or > 60)
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return new(null, observedAt, false, "室内温度超出有效范围") { Issue = IndoorTemperatureIssue.Invalid };
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return new(celsius, observedAt, true, "室内温度数据有效");
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}
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}
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