134 lines
6.0 KiB
Python
134 lines
6.0 KiB
Python
"""整批模拟执行：新增组件补全物料默认配置，再按顺序在大屏副本上执行，遇到第一个错误即停止
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纯函数，不依赖 agent；agent 的 apply_actions 工具和测试共用
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"""
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from copy import deepcopy
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from app.actions.layout import EXPANDERS
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from app.actions.registry import apply_action
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from app.actions.update import fit_existing_path, same_value
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from app.resources.material_fields import check_update_field, find_material
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from app.schemas.actions import Action, AddAction, AgentAction, UpdateAction
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from app.schemas.capabilities import DATA_BINDING_ERROR, DATA_BINDING_SUPPORTED
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from app.schemas.component_resource import ComponentCatalog
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from app.schemas.screen import Screen, ScreenNode
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class BatchError(ValueError):
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"""整批中第 index 个动作（从 0 开始）失败，消息里带上序号和目标，模型据此修正"""
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def __init__(self, index: int, action: AgentAction, reason: str):
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self.index = index
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self.reason = reason
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if isinstance(action, AddAction):
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target = action.node.id
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elif ids := getattr(action, "target_ids", None):
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target = "、".join(ids)
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else:
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target = getattr(action, "target_id", "画布")
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super().__init__(f"第 {index + 1} 个动作（{action.type} {target}）：{reason}")
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def merge_config(defaults: dict, overrides: dict) -> dict:
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"""对象逐层覆盖，数组和标量整体替换，不修改传入的数据"""
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result = deepcopy(defaults)
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for key, value in overrides.items():
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result[key] = (
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merge_config(result[key], value)
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if isinstance(result.get(key), dict) and isinstance(value, dict)
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else deepcopy(value)
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)
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return result
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def complete_add(action: AddAction, catalog: ComponentCatalog) -> AddAction:
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"""按 node.type 找物料补全新增组件，模型显式写出的字段优先
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sample_data 模型写了就以模型为准（只有它知道是否换成了自己的数据），没写时按物料设置
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"""
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material = find_material(catalog, action.node.type)
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if not DATA_BINDING_SUPPORTED and action.node.model_extra.get("dataId"):
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raise ValueError(DATA_BINDING_ERROR)
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overrides = action.node.model_dump(mode="json", exclude_unset=True)
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node = ScreenNode.model_validate(merge_config(material.template(), overrides))
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sample_data = (
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action.sample_data
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if "sample_data" in action.model_fields_set
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else material.sample_data
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)
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return action.model_copy(update={"node": node, "sample_data": sample_data})
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def misplaced_props(actions: list[AgentAction], catalog: ComponentCatalog) -> list[str]:
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"""新增组件的 props 里物料没有的键：前端按物料的结构读取，多出来的键不会生效，多半是写错了层级
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评测里模型把 series 写在 props 下而不是 props.option 下，物料默认的 series 留着，图表引用的列对不上；
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它看到的报错说 encode 用了别的列，和自己写的不一样，反复原样提交。返回给模型的说明，每项一个组件
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"""
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notes = []
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for action in actions:
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if not isinstance(action, AddAction):
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continue
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try:
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known = (
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find_material(catalog, action.node.type).template().get("props") or {}
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)
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except ValueError: # 物料不存在，补全时会报错
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continue
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written = (
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action.node.model_dump(mode="json", exclude_unset=True).get("props") or {}
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)
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for key in sorted(set(written) - set(known)):
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parent = next(
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(
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name
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for name, value in known.items()
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if isinstance(value, dict) and key in value
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),
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None,
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)
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where = f"（物料里在 props.{parent}.{key}）" if parent else ""
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notes.append(f"{action.node.id} 的 props.{key}{where}")
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return notes
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def run_batch(
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screen: Screen, catalog: ComponentCatalog, actions: list[AgentAction]
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) -> tuple[list[Action], Screen]:
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"""从传入的大屏开始按顺序模拟执行，返回前端要执行的动作和执行后的大屏；第一个错误抛 BatchError
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布局意图（arrange、align、distribute、set_layout）在这里按当时的大屏展开成 move 和 resize
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update 写入的值和字段现在的值完全一样时没有变化，跳过：不经过字段契约、也不交付；
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模型常把已经正确的值再写一遍（例如已经是 category 的轴类型），字段不在契约里时整批都会失败
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"""
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current = screen.model_copy(deep=True)
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completed: list[Action] = []
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for index, action in enumerate(actions):
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try:
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if expander := EXPANDERS.get(action.type):
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expanded = expander(current, action)
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for primitive in expanded:
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current = apply_action(current, primitive)
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completed.extend(expanded)
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continue
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if isinstance(action, AddAction):
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action = complete_add(action, catalog)
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elif isinstance(action, UpdateAction):
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# 目标不存在时交给执行器报错
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node = next(
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(item for item in current.nodes if item.id == action.target_id),
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None,
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)
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if node is not None:
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if same_value(node, action):
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continue
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check_update_field(catalog, node.type, action)
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# 字段定义允许、但组件中还没有的中间对象，折叠进值里再执行
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action = fit_existing_path(node, action)
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current = apply_action(current, action)
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except ValueError as error: # 含 pydantic ValidationError
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raise BatchError(index, action, str(error)) from error
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completed.append(action)
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return completed, current
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