package com.battery.device.neware;
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import com.battery.device.api.StepDirectionResolver;
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/**
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* 新威工步层 {@code cap_step.step_type} 的数值枚举解释：{@code 1} 充电、{@code 2} 放电、{@code 4} 搁置。
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*
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* <p>其余取值（实测出现过 {@code 3}、{@code 5}、{@code 7}、{@code 13}）语义未确认，保持未知：
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* 不按电流符号、也不按容量出现在哪一组去猜方向，明细照原样保存供核对。
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*/
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public final class NewareStepDirectionResolver implements StepDirectionResolver
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{
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/** 只按已确认的协议取值给出方向；其余取值与空值一律保持未知。 */
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@Override
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public Direction resolve(String stepType)
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{
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if (stepType == null) return Direction.UNKNOWN;
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return switch (stepType.trim())
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{
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case "1" -> Direction.CHARGE;
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case "2" -> Direction.DISCHARGE;
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case "4" -> Direction.REST;
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default -> Direction.UNKNOWN;
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};
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}
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}
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