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import sys

sys.stdout = open(sys.stdout.fileno(), mode="w", buffering=1)
sys.stderr = open(sys.stderr.fileno(), mode="w", buffering=1)
import numpy as np
import os
import pathlib
import click
import hydra
import torch
import dill
import wandb
import json
import random
from omegaconf import open_dict, OmegaConf
# os.environ["LD_LIBRARY_PATH"] = "/hpc2hdd/home/jfeng644/.mujoco/mujoco210/bin:/usr/lib/nvidia:" + os.environ.get("LD_LIBRARY_PATH", "") 
from unified_video_action.workspace.base_workspace import BaseWorkspace
from unified_video_action.utils.load_env import load_env_runner


@click.command()
@click.option("-c", "--checkpoint", required=True)
@click.option("-o", "--output_dir", required=True)
@click.option("-d", "--device", default="cuda:0")
@click.option("--config-override", default='unified_video_action/config/task/libero10.yaml', help="Path to additional config file to override settings")
@click.option("--view-key", default="agentview_340_image", help="View key for testing")
def main(checkpoint, output_dir, device, config_override, view_key):

    pathlib.Path(output_dir).mkdir(parents=True, exist_ok=True)

    # load checkpoint
    payload = torch.load(open(checkpoint, "rb"), pickle_module=dill)
    cfg = payload["cfg"]

    # # Update config with additional config file if provided
    # if config_override is not None:
    #     override_cfg = OmegaConf.load(config_override)
        
    #     # 确保task键存在,如果不存在就创建
    #     if 'task' not in cfg:
    #         cfg['task'] = OmegaConf.create({})
        
    #     # 递归地确保所有嵌套键都存在
    #     def ensure_keys_exist(base_cfg, override_cfg):
    #         for key, value in override_cfg.items():
    #             if key not in base_cfg:
    #                 base_cfg[key] = OmegaConf.create({})
                
    #             if isinstance(value, dict) and isinstance(base_cfg[key], dict):
    #                 ensure_keys_exist(base_cfg[key], value)
    #             else:
    #                 base_cfg[key] = value
        
    #     ensure_keys_exist(cfg['task'], override_cfg)
    #     ensure_keys_exist(cfg['model']['policy']['shape_meta'], override_cfg['shape_meta'])
    #     print(f"Updated config with override file: {config_override}")
    # config_2 = 'unified_video_action/config/vpp_libero10.yaml'
    # override_cfg = OmegaConf.load(config_2)
    # del override_cfg['defaults']
    # ensure_keys_exist(cfg, override_cfg)

    # config_3 = 'unified_video_action/config/model/vpp.yaml'
    # override_cfg = OmegaConf.load(config_3)
    # ensure_keys_exist(cfg['model'], override_cfg)
    # print(f"Updated config with override file: {config_3}")
    # print(f"Updated config with override file: {config_2}")
    # set seed
    seed = cfg.training.seed
    torch.manual_seed(seed)
    np.random.seed(seed)
    random.seed(seed)

    with open_dict(cfg):
        cfg.output_dir = output_dir
        # 设置view_key参数
        cfg.task.env_runner.view_key = view_key
        
    # configure workspace
    cls = hydra.utils.get_class(cfg.model._target_)
    workspace = cls(cfg, output_dir=output_dir)
    workspace: BaseWorkspace

    print("Loaded checkpoint from %s" % checkpoint)
    workspace.load_payload(payload, exclude_keys=None, include_keys=None)
    
    
    # get policy from workspace
    policy = workspace.ema_model
    policy.to(device)
    policy.eval()

    env_runners = load_env_runner(cfg, output_dir)

    if "libero" in cfg.task.name:
        step_log = {}
        for env_runner in env_runners:
            runner_log = env_runner.run(policy)
            step_log.update(runner_log)
            print(step_log)

        assert "test_mean_score" not in step_log
        all_test_mean_score = {
            k: v for k, v in step_log.items() if "test/" in k and "_mean_score" in k
        }
        step_log["test_mean_score"] = np.mean(list(all_test_mean_score.values()))

        runner_log = step_log
    else:
        env_runner = env_runners
        runner_log = env_runner.run(policy)

    # dump log to json
    json_log = dict()
    for key, value in runner_log.items():
        if isinstance(value, wandb.sdk.data_types.video.Video):
            json_log[key] = value._path
        else:
            json_log[key] = value

    for k, v in json_log.items():
        print(k, v)

    out_path = os.path.join(output_dir, f'eval_log_{checkpoint.split("/")[-1]}.json')
    print("Saving log to %s" % out_path)
    json.dump(json_log, open(out_path, "w"), indent=2, sort_keys=True)


if __name__ == "__main__":
    main()