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# SPDX-License-Identifier: Apache-2.0
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# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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"""
Core training related registry.
"""

from hydra.core.config_store import ConfigStore

from cosmos_transfer1.checkpointer.ema_fsdp_checkpointer import CheckpointConfig
from cosmos_transfer1.diffusion.config.training.callbacks import BASIC_CALLBACKS
from cosmos_transfer1.diffusion.config.training.checkpoint import (
    FAST_TP_CHECKPOINTER,
    FSDP_CHECKPOINTER,
    MODEL_PARALLEL_CHECKPOINTER,
    MULTI_RANK_CHECKPOINTER,
)
from cosmos_transfer1.diffusion.config.training.ema import PowerEMAConfig
from cosmos_transfer1.diffusion.config.training.optim import FusedAdamWConfig, LambdaLinearSchedulerConfig


def register_ema(cs):
    cs.store(group="ema", package="model.ema", name="power", node=PowerEMAConfig)


def register_optimizer(cs):
    cs.store(group="optimizer", package="optimizer", name="fusedadamw", node=FusedAdamWConfig)


def register_scheduler(cs):
    cs.store(group="scheduler", package="scheduler", name="lambdalinear", node=LambdaLinearSchedulerConfig)


def register_callbacks(cs):
    cs.store(group="callbacks", package="trainer.callbacks", name="basic", node=BASIC_CALLBACKS)


def register_checkpoint_credential(cs):
    CHECKPOINT_LOCAL = CheckpointConfig(
        save_iter=1000,
        load_path="",
        load_training_state=False,
        strict_resume=True,
    )

    cs.store(group="checkpoint", package="checkpoint", name="local", node=CHECKPOINT_LOCAL)


def register_checkpointer(cs):
    cs.store(group="ckpt_klass", package="checkpoint.type", name="fsdp", node=FSDP_CHECKPOINTER)
    cs.store(group="ckpt_klass", package="checkpoint.type", name="multi_rank", node=MULTI_RANK_CHECKPOINTER)
    cs.store(group="ckpt_klass", package="checkpoint.type", name="tp", node=MODEL_PARALLEL_CHECKPOINTER)
    cs.store(group="ckpt_klass", package="checkpoint.type", name="fast_tp", node=FAST_TP_CHECKPOINTER)


def register_configs():
    cs = ConfigStore.instance()

    register_optimizer(cs)
    register_scheduler(cs)
    register_ema(cs)
    register_checkpoint_credential(cs)
    register_checkpointer(cs)
    register_callbacks(cs)