import xml.etree.ElementTree

def get_text_or_default(parent_node: xml.etree.ElementTree.Element, node_names, default_value):
    if not isinstance(node_names, list):
        node_names = [node_names]
    node = parent_node
    for n in node_names:
        node = node.find(n)
        if node is None:
            return default_value
    return node.text

def parse_mos_xml(mosElem: xml.etree.ElementTree.Element) -> bool:
    mosId = mosElem.find("mosID").text
    mosObj = mosElem.find("mosObj")
    objId = mosObj.find("objID").text
    status = mosObj.find("status").text

    if status == "DELETED":
        objData = {
            "mosId": mosId,
            "objId": objId,
            "isDeleted": 1
        }
        return objData

    objData = {
        "mosId": mosId,
        "objId": objId,
        "status": status,
        "isDeleted": 0,
        "objSlug":    get_text_or_default(mosObj, "objSlug", ""),
        "objPath":    get_text_or_default(mosObj, ["objPaths", "objPath"], ""),
        "objProxyPath": get_text_or_default(mosObj, ["objPaths", "objProxyPath"], ""),
        "objGroup":   get_text_or_default(mosObj, "objGroup", ""),
        "objAir":     get_text_or_default(mosObj, "objAir", ""),
        "created":    get_text_or_default(mosObj, "created", ""),
        "createdBy":  get_text_or_default(mosObj, "createdBy", ""),
        "changed":    get_text_or_default(mosObj, "changed", ""),
        "changedBy":  get_text_or_default(mosObj, "changedBy", ""),
        "description": get_text_or_default(mosObj, "description", ""),
        "objDur":     get_text_or_default(mosObj, "objDur", "0"),
        "planningId": get_text_or_default(mosObj, ["mosExternalMetadata", "mosPayload", "planningID"], "")
    }
    #print(repr(objData))
    return objData