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# SPDX-License-Identifier: Apache-2.0
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from dataclasses import dataclass
from typing import Dict, Optional

import torch
from hydra.core.config_store import ConfigStore

from imaginaire.lazy_config import LazyCall as L
from imaginaire.lazy_config import LazyDict
from cosmos_predict2.configs.vid2vid.defaults.conditioner import Vid2VidCondition, Vid2VidConditioner


# NOTE: extend the condition class to include action
@dataclass(frozen=True)
class ActionConditionedCondition(Vid2VidCondition):
    action: Optional[torch.Tensor] = None


# NOTE: extend the conditioner class to include action
class ActionConditionedConditioner(Vid2VidConditioner):
    def forward(
        self,
        batch: Dict,
        override_dropout_rate: Optional[Dict[str, float]] = None,
    ) -> ActionConditionedCondition:
        output = super()._forward(batch, override_dropout_rate)
        assert "action" in batch, "ActionConditionalConditioner requires 'action' in batch"
        output["action"] = batch["action"]
        return ActionConditionedCondition(**output)