ComfyUI/app/node_replace_manager.py

103 lines
4.7 KiB
Python

from __future__ import annotations
from aiohttp import web
from typing import TYPE_CHECKING, TypedDict
if TYPE_CHECKING:
from comfy_api.latest._node_replace import NodeReplace
from nodes import NODE_CLASS_MAPPINGS
class NodeStruct(TypedDict):
inputs: dict[str, str | int | float | tuple[str, int]]
class_type: str
_meta: dict[str, str]
def copy_node_struct(node_struct: NodeStruct, empty_inputs: bool = False) -> NodeStruct:
new_node_struct = node_struct.copy()
if empty_inputs:
new_node_struct["inputs"] = {}
else:
new_node_struct["inputs"] = node_struct["inputs"].copy()
new_node_struct["_meta"] = node_struct["_meta"].copy()
return new_node_struct
class NodeReplaceManager:
"""Manages node replacement registrations."""
def __init__(self):
self._replacements: dict[str, list[NodeReplace]] = {}
def register(self, node_replace: NodeReplace):
"""Register a node replacement mapping."""
self._replacements.setdefault(node_replace.old_node_id, []).append(node_replace)
def get_replacement(self, old_node_id: str) -> list[NodeReplace] | None:
"""Get replacements for an old node ID."""
return self._replacements.get(old_node_id)
def has_replacement(self, old_node_id: str) -> bool:
"""Check if a replacement exists for an old node ID."""
return old_node_id in self._replacements
def apply_replacements(self, prompt: dict[str, NodeStruct]):
connections: dict[str, list[tuple[str, str, int]]] = {}
need_replacement: set[str] = set()
for node_number, node_struct in prompt.items():
class_type = node_struct["class_type"]
# need replacement if not in NODE_CLASS_MAPPINGS and has replacement
if class_type not in NODE_CLASS_MAPPINGS.keys() and self.has_replacement(class_type):
need_replacement.add(node_number)
# keep track of connections
for input_id, input_value in node_struct["inputs"].items():
if isinstance(input_value, list):
conn_number = input_value[0]
connections.setdefault(conn_number, []).append((node_number, input_id, input_value[1]))
if len(need_replacement) > 0:
for node_number in need_replacement:
node_struct = prompt[node_number]
class_type = node_struct["class_type"]
replacements = self.get_replacement(class_type)
if replacements is None:
continue
# just use the first replacement
replacement = replacements[0]
new_node_id = replacement.new_node_id
# first, replace node id (class_type)
new_node_struct = copy_node_struct(node_struct, empty_inputs=True)
new_node_struct["class_type"] = new_node_id
# second, replace inputs
if replacement.input_mapping is not None:
for input_map in replacement.input_mapping:
if "set_value" in input_map:
new_node_struct["inputs"][input_map["new_id"]] = input_map["set_value"]
elif "old_id" in input_map:
new_node_struct["inputs"][input_map["new_id"]] = node_struct["inputs"][input_map["old_id"]]
# finalize input replacement
prompt[node_number] = new_node_struct
# third, replace outputs
if replacement.output_mapping is not None:
# re-mapping outputs requires changing the input values of nodes that receive connections from this one
# so we need to find all nodes that receive connections from this one
if node_number in connections:
for conns in connections[node_number]:
conn_node_number, conn_input_id, old_output_idx = conns
for output_map in replacement.output_mapping:
if output_map["old_idx"] == old_output_idx:
new_output_idx = output_map["new_idx"]
previous_input = prompt[conn_node_number]["inputs"][conn_input_id]
previous_input[1] = new_output_idx
def as_dict(self):
"""Serialize all replacements to dict."""
return {
k: [v.as_dict() for v in v_list]
for k, v_list in self._replacements.items()
}
def add_routes(self, routes):
@routes.get("/node_replacements")
async def get_node_replacements(request):
return web.json_response(self.as_dict())