from __future__ import annotations
_B=True
_A=None
import inspect,logging
from copy import deepcopy
from typing import Any,Callable,Dict,Optional,Set,Type
from localstack.utils.common import ArbitraryAccessObj
from moto.s3.models import FakeBucket
from moto.sqs.models import Queue
from localstack_ext.bootstrap.state_utils import check_already_visited,check_already_visited_obj_id,get_object_dict,is_composite_type
LOG=logging.getLogger(__name__)
def _deepcopy_or_default(value,default):
	A=value
	try:return deepcopy(A)
	except Exception as B:LOG.warning(f"No deepcopy strategy for object of type '{type(A)}' and value '{A}'; persisting this object might not be possible; terminated with {B}.")
	return default
def _merge_3way_dfs_on_key(current,injecting,ancestor,key,visited=_A):
	F=visited;E=ancestor;C=injecting;B=current;A=key;G=A in B;H=A in C;I=A in E;L=I and not H and G;M=not I and H and not G;N=H and G and B[A]!=C[A]and(C[A]!=E[A]if I else _B)
	if L:del B[A]
	elif M:J=C[A];B[A]=_deepcopy_or_default(J,J)
	elif N:
		K=B[A];D=K
		if not is_composite_type(D):D=C[A];B[A]=_deepcopy_or_default(D,K)
		else:0
		O,F=check_already_visited_obj_id(D,F)
		if not O:merge_3way(B[A],C.get(A,{}),E.get(A,{}),F)
def merge_3way(current,injecting,ancestor,visited=_A):
	C=ancestor;B=injecting;A=current
	if isinstance(A,list):E=dict(enumerate(A));H=dict(enumerate(B));I=dict(enumerate(C))if C else _A;merge_3way(E,H,I);A.clear();A.extend(E.values())
	elif isinstance(A,set):A.update(B)
	else:
		D=get_object_dict(A)
		if D is not _A:
			F=get_object_dict(B)or{};G=get_object_dict(C)or{};J={*(D),*(F),*(G)}
			for K in J:_merge_3way_dfs_on_key(D,F,G,K,visited)
def merge_object_state(current,injecting,common_ancestor=_A):
	B=injecting;A=current
	if not A or not B:return A
	C=handle_special_case(A,B)
	if C:return A
	merge_3way(A,B,common_ancestor);add_missing_attributes(A);return A
def handle_special_case(current,injecting):
	B=current;A=injecting
	if isinstance(A,Queue):B.queues[A.name]=A;return _B
	elif isinstance(A,FakeBucket):C=B['global']if isinstance(B,dict)else B;C.buckets[A.name]=A;return _B
def traverse_object(obj,handler,safe=_B,visited=_A):
	C=handler;B=visited;A=obj
	try:
		D=get_object_dict(A)
		if D is _A:return
		E,B=check_already_visited(A,B)
		if E:return
		for F in D.values():traverse_object(F,handler=C,safe=safe,visited=B)
		C(A)
	except Exception as G:
		if not safe:raise
		LOG.warning('Unable to add missing attributes to persistence state object %s: %s',(A,G))
def add_missing_attributes(obj,safe=_B):
	def D(_obj):
		A=type(_obj)
		if inspect.isclass(A)and A.__module__.startswith('threading'):return _B
		return False
	def A(_obj):
		A=_obj;B=get_object_dict(A)
		if not B or D(A):return
		E=infer_class_attributes(type(A))
		for (C,F) in E.items():
			if C not in B:LOG.debug("Add missing attribute '%s' to state object of type %s",C,type(A));B[C]=F
	traverse_object(obj,handler=A,safe=safe)
def infer_class_attributes(clazz):
	B=clazz
	if B in[list,dict]or not inspect.isclass(B)or B.__name__=='function':return{}
	C=getattr(B,'__init__',_A)
	if not C:return{}
	try:
		A=inspect.getfullargspec(C)
		def D(arg_name,arg_index=-1):
			B=arg_name;C=A.defaults or[];F=len(A.args or[])-len(C);D=arg_index-F
			if D in range(len(C)):return C[D]
			E=A.kwonlydefaults or{}
			if B in E:return E[B]
			if B in['region','region_name']:return'test-region'
			return ArbitraryAccessObj()
		E=[];F={}
		for G in range(1,len(A.args)):E.append(D(A.args[G],arg_index=G))
		for H in A.kwonlyargs:F[H]=D(H)
		I=B(*(E),**F);J=dict(I.__dict__);return J
	except Exception:return{}