"""在大屏副本上设置组件的显示条件、数据筛选和事件；引用的变量是否存在由 interaction.py 在整批执行后检查"""

from copy import deepcopy

from app.actions.base import BaseActionHandler
from app.schemas.actions import SetInteractionAction
from app.schemas.actions.set_interaction import INTERACTION_KEYS
from app.schemas.screen import Screen


class SetInteractionHandler(BaseActionHandler[SetInteractionAction]):
    def apply(self, screen: Screen, action: SetInteractionAction) -> Screen:
        result, target = self.copy_target(screen, action.target_id)
        # 只处理写出的键，写 null 删除节点上的该字段；节点上的事件是开放的 JSON，按序列化结果存
        written = action.model_dump(mode="json", include=set(INTERACTION_KEYS))
        for key in INTERACTION_KEYS:
            if key in written:
                value = getattr(action, key)
                setattr(
                    target,
                    key,
                    written[key] if key == "events" else deepcopy(value),
                )
        return result


if __name__ == "__main__":
    screen = Screen.model_validate(
        {
            "canvas": {"width": 1920, "height": 1080},
            "nodes": [
                {
                    "id": "detail",
                    "type": "stat-card",
                    "layout": {"x": 0, "y": 0, "width": 320, "height": 150},
                    "filters": [{"field": "model", "var": "model"}],
                }
            ],
        }
    )
    action = SetInteractionAction(
        target_id="detail", visibleWhen={"var": "page", "equals": "stock"}
    )
    print(
        SetInteractionHandler().apply(screen, action).nodes[0].model_dump_json(indent=2)
    )