51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
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"""当前使用 Android 设备的本地设置服务。"""
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from .settings_repository import SettingsRepository
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SELECTED_ANDROID_SERIAL_KEY = "android.selected_serial"
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MAX_ANDROID_SERIAL_LENGTH = 255
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class SelectedAndroidDeviceService:
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"""只保存自动化应使用的设备号，不缓存 ADB 搜索结果。"""
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def __init__(self, repository: SettingsRepository):
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self._repository = repository
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def load(self) -> str:
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"""读取已保存设备号；缺失或损坏时返回空字符串。"""
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value = self._repository.get(SELECTED_ANDROID_SERIAL_KEY, "")
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if not isinstance(value, str):
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return ""
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return value.strip()
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def save(self, serial: str) -> str:
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"""校验并保存设备号，返回规范化后的值。"""
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normalized = self._normalize_serial(serial)
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self._repository.set(SELECTED_ANDROID_SERIAL_KEY, normalized)
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return normalized
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def delete(self) -> bool:
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"""清除当前设备配置；配置不存在时也视为安全完成。"""
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return self._repository.delete(SELECTED_ANDROID_SERIAL_KEY)
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@staticmethod
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def _normalize_serial(serial: object) -> str:
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if not isinstance(serial, str):
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raise ValueError("Android 设备号必须是文本")
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normalized = serial.strip()
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if not normalized:
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raise ValueError("Android 设备号不能为空")
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if len(normalized) > MAX_ANDROID_SERIAL_LENGTH:
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raise ValueError(
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f"Android 设备号最多 {MAX_ANDROID_SERIAL_LENGTH} 个字符"
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)
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if any(character.isspace() for character in normalized):
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raise ValueError("Android 设备号不能包含空白字符")
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return normalized
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