import os
import sys


MONITOR_MODEL_MOVING = False


def monitor_module_moving():
    if not MONITOR_MODEL_MOVING:
        return

    import torch
    import traceback

    old_to = torch.nn.Module.to

    def new_to(*args, **kwargs):
        traceback.print_stack()
        print('Model Movement')

        return old_to(*args, **kwargs)

    torch.nn.Module.to = new_to
    return


def initialize_forge():
    bad_list = ['--lowvram', '--medvram', '--medvram-sdxl']

    for bad in bad_list:
        if bad in sys.argv:
            print(f'Arg {bad} is not the same on reForge')
            print (f'You can use "--always-no-vram" or "--always-low-vram" for similar usability')
            print(f'In extreme cases, if you want to force previous lowvram/medvram behaviors, '
                  f'please use --always-offload-from-vram')

    from ldm_patched.modules import args_parser

    args_parser.args, _ = args_parser.parser.parse_known_args()

    if args_parser.args.cuda_malloc:
        from modules_forge.cuda_malloc import try_cuda_malloc
        try_cuda_malloc()

    if args_parser.args.cuda_device is not None:
        os.environ['CUDA_VISIBLE_DEVICES'] = str(args_parser.args.cuda_device)
        print("Set device to:", args_parser.args.cuda_device)

    import ldm_patched.modules.model_management as model_management
    import torch

    monitor_module_moving()

    device = model_management.get_torch_device()
    torch.zeros((1, 1)).to(device, torch.float32)
    model_management.soft_empty_cache()

    import modules_forge.patch_basic
    modules_forge.patch_basic.patch_all_basics()

    from modules_forge import stream
    print('CUDA Stream Activated: ', stream.using_stream)

    from modules_forge.shared import diffusers_dir

    if 'HF_HOME' not in os.environ:
        os.environ['HF_HOME'] = diffusers_dir

    if 'HF_DATASETS_CACHE' not in os.environ:
        os.environ['HF_DATASETS_CACHE'] = diffusers_dir

    if 'HUGGINGFACE_HUB_CACHE' not in os.environ:
        os.environ['HUGGINGFACE_HUB_CACHE'] = diffusers_dir

    if 'HUGGINGFACE_ASSETS_CACHE' not in os.environ:
        os.environ['HUGGINGFACE_ASSETS_CACHE'] = diffusers_dir

    if 'HF_HUB_CACHE' not in os.environ:
        os.environ['HF_HUB_CACHE'] = diffusers_dir
    return