"""Common device responsibility fields and non-video device records."""
class Inventory:
    def __init__(self, app):
        self.a = app

    def metadata(self, data, old=None):
        old = old or {}
        result = {k: self.a.clean_text(data.get(k, old.get(k, '')), 80)
                  for k in ('ownerName', 'managerName')}
        tags = data.get('tags', old.get('tags', []))
        if not isinstance(tags, list) or len(tags) > 12:
            raise self.a.Problem('自定义标签最多 12 个')
        result['tags'] = sorted({self.a.clean_text(tag, 40, True) for tag in tags})
        return result

    def save(self, data, user):
        a = self.a
        with a.LOCK:
            family = a.HOUSEHOLDS.prepare(user, 'devices', data, (('sites', 'siteId'),))
            key = a.object_key('devices', data)
            old = a.get_object('devices', key)
            item = {k: a.clean_text(data.get(k, ''), 300 if k == 'note' else 120, k in ('name', 'deviceType'))
                    for k in ('name', 'deviceType', 'brand', 'model', 'serial', 'note')}
            if item['deviceType'] in ('摄像头', '摄像机', '录像机'):
                raise a.Problem('视频设备请使用摄像机或录像机档案，以保留取流与通道配置')
            item.update(id=key, familyId=family, siteId=a.clean_text(data.get('siteId', ''), 32),
                        **self.metadata(data, old))
            a.save_object('devices', item)
            a.audit('保存设备档案', item['name'])
            return item