# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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from gr00t.data.transform.base import ComposedModalityTransform, ModalityTransform
from gr00t.data.transform.concat import ConcatTransform
from gr00t.data.transform.state_action import StateActionToTensor, StateActionTransform
from gr00t.data.transform.video import (
    VideoColorJitter,
    VideoCrop,
    VideoResize,
    VideoToNumpy,
    VideoToTensor,
)
from gr00t.experiment.data_config import BaseDataConfig, So100DataConfig
from gr00t.model.transforms import GR00TTransform


class FractalDataConfig(BaseDataConfig):
    video_keys = [
        "video.image",
    ]
    state_keys = [
        "state.x",
        "state.y",
        "state.z",
        "state.rx",
        "state.ry",
        "state.rz",
        "state.rw",
        "state.gripper",
    ]
    action_keys = [
        "action.x",
        "action.y",
        "action.z",
        "action.roll",
        "action.pitch",
        "action.yaw",
        "action.gripper",
    ]
    language_keys = ["annotation.human.action.task_description"]
    observation_indices = [0]
    action_indices = list(range(16))

    def transform(self) -> ModalityTransform:
        transforms = [
            # video transforms
            VideoToTensor(apply_to=self.video_keys),
            VideoCrop(apply_to=self.video_keys, scale=0.95),
            VideoResize(apply_to=self.video_keys, height=224, width=224, interpolation="linear"),
            VideoColorJitter(
                apply_to=self.video_keys,
                brightness=0.3,
                contrast=0.4,
                saturation=0.5,
                hue=0.08,
            ),
            VideoToNumpy(apply_to=self.video_keys),
            # state transforms
            StateActionToTensor(apply_to=self.state_keys),
            StateActionTransform(
                apply_to=self.state_keys,
                normalization_modes={key: "min_max" for key in self.state_keys},
            ),
            # action transforms
            StateActionToTensor(apply_to=self.action_keys),
            StateActionTransform(
                apply_to=self.action_keys,
                normalization_modes={
                    "action.x": "mean_std",
                    "action.y": "mean_std",
                    "action.z": "mean_std",
                    "action.roll": "mean_std",
                    "action.pitch": "mean_std",
                    "action.yaw": "mean_std",
                    "action.gripper": "min_max",
                },
            ),
            ConcatTransform(
                video_concat_order=self.video_keys,
                state_concat_order=self.state_keys,
                action_concat_order=self.action_keys,
            ),
            GR00TTransform(
                state_horizon=len(self.observation_indices),
                action_horizon=len(self.action_indices),
                max_state_dim=64,
                max_action_dim=32,
            ),
        ]
        return ComposedModalityTransform(transforms=transforms)


# NOTE: we use the default so100 with minmax norm for all commponents
#       using different normalization mode can sometimes lead to better performance
class BridgeDataConfig(So100DataConfig):
    video_keys = [
        "video.image_0",
    ]
    state_keys = [
        "state.x",
        "state.y",
        "state.z",
        "state.roll",
        "state.pitch",
        "state.yaw",
        "state.pad",
        "state.gripper",
    ]
    action_keys = [
        "action.x",
        "action.y",
        "action.z",
        "action.roll",
        "action.pitch",
        "action.yaw",
        "action.gripper",
    ]
    language_keys = ["annotation.human.action.task_description"]
    observation_indices = [0]
    action_indices = list(range(16))