### Task parameters

DATA_DIR = 'YOUR/DATA/DIR/'
TASK_CONFIGS = {
    # fold shorts
    'fold_shorts':{
        'dataset_dir': DATA_DIR + '/fold_shorts',
        'num_episodes': 20,
        'episode_len': 1000,
        'camera_names': ['cam_high', 'cam_left_wrist', 'cam_right_wrist']
    },
    # fold shirt
    'fold_shirt':{
        'dataset_dir': DATA_DIR + '/fold_shirt',
        'num_episodes': 30,
        'episode_len': 1250,
        'camera_names': ['cam_high', 'cam_left_wrist', 'cam_right_wrist']
    },
    # scoop X into bowl
    'scoop_raisins_into_bowl':{
        'dataset_dir': DATA_DIR + '/scoop_raisins_into_bowl',
        'num_episodes': 15,
        'episode_len': 900,
        'camera_names': ['cam_high', 'cam_left_wrist', 'cam_right_wrist']
    },
    'scoop_almonds_and_green_M&Ms_into_bowl':{
        'dataset_dir': DATA_DIR + '/scoop_almonds_and_green_M&Ms_into_bowl',
        'num_episodes': 15,
        'episode_len': 900,
        'camera_names': ['cam_high', 'cam_left_wrist', 'cam_right_wrist']
    },
    'scoop_pretzels_into_bowl':{
        'dataset_dir': DATA_DIR + '/scoop_pretzels_into_bowl',
        'num_episodes': 15,
        'episode_len': 900,
        'camera_names': ['cam_high', 'cam_left_wrist', 'cam_right_wrist']
    },
    # put X into pot
    'put_red_pepper_into_pot':{
        'dataset_dir': DATA_DIR + '/put_red_pepper_into_pot',
        'num_episodes': 100,
        'episode_len': 400,
        'camera_names': ['cam_high', 'cam_low', 'cam_left_wrist', 'cam_right_wrist']
    },
    'put_yellow_corn_into_pot':{
        'dataset_dir': DATA_DIR + '/put_yellow_corn_into_pot',
        'num_episodes': 100,
        'episode_len': 400,
        'camera_names': ['cam_high', 'cam_low', 'cam_left_wrist', 'cam_right_wrist']
    },
    'put_green_pepper_into_pot':{
        'dataset_dir': DATA_DIR + '/put_green_pepper_into_pot',
        'num_episodes': 100,
        'episode_len': 400,
        'camera_names': ['cam_high', 'cam_low', 'cam_left_wrist', 'cam_right_wrist']
    },
}

### ALOHA fixed constants
DT = 0.04  # 1 / 0.04 -> 25 Hz
JOINT_NAMES = ["waist", "shoulder", "elbow", "forearm_roll", "wrist_angle", "wrist_rotate"]
START_ARM_POSE = [0, -0.96, 1.16, 0, -0.3, 0, 0.02239, -0.02239,  0, -0.96, 1.16, 0, -0.3, 0, 0.02239, -0.02239]

# Left finger position limits (qpos[7]), right_finger = -1 * left_finger
MASTER_GRIPPER_POSITION_OPEN = 0.02417
MASTER_GRIPPER_POSITION_CLOSE = 0.01244
PUPPET_GRIPPER_POSITION_OPEN = 0.05800
PUPPET_GRIPPER_POSITION_CLOSE = 0.01844

# Gripper joint limits (qpos[6])
MASTER_GRIPPER_JOINT_OPEN = 0.3083  # For ALOHA 1
MASTER_GRIPPER_JOINT_CLOSE = -0.6842  # For ALOHA 1
# MASTER_GRIPPER_JOINT_OPEN = -0.8  # For ALOHA 2
# MASTER_GRIPPER_JOINT_CLOSE = -1.65  # For ALOHA 2
PUPPET_GRIPPER_JOINT_OPEN = 1.4910
PUPPET_GRIPPER_JOINT_CLOSE = -0.6213

############################ Helper functions ############################

MASTER_GRIPPER_POSITION_NORMALIZE_FN = lambda x: (x - MASTER_GRIPPER_POSITION_CLOSE) / (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE)
PUPPET_GRIPPER_POSITION_NORMALIZE_FN = lambda x: (x - PUPPET_GRIPPER_POSITION_CLOSE) / (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE)
MASTER_GRIPPER_POSITION_UNNORMALIZE_FN = lambda x: x * (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE) + MASTER_GRIPPER_POSITION_CLOSE
PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN = lambda x: x * (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE) + PUPPET_GRIPPER_POSITION_CLOSE
MASTER2PUPPET_POSITION_FN = lambda x: PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN(MASTER_GRIPPER_POSITION_NORMALIZE_FN(x))

MASTER_GRIPPER_JOINT_NORMALIZE_FN = lambda x: (x - MASTER_GRIPPER_JOINT_CLOSE) / (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
PUPPET_GRIPPER_JOINT_NORMALIZE_FN = lambda x: (x - PUPPET_GRIPPER_JOINT_CLOSE) / (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
MASTER_GRIPPER_JOINT_UNNORMALIZE_FN = lambda x: x * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE) + MASTER_GRIPPER_JOINT_CLOSE
PUPPET_GRIPPER_JOINT_UNNORMALIZE_FN = lambda x: x * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE) + PUPPET_GRIPPER_JOINT_CLOSE
MASTER2PUPPET_JOINT_FN = lambda x: PUPPET_GRIPPER_JOINT_UNNORMALIZE_FN(MASTER_GRIPPER_JOINT_NORMALIZE_FN(x))

MASTER_GRIPPER_VELOCITY_NORMALIZE_FN = lambda x: x / (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE)
PUPPET_GRIPPER_VELOCITY_NORMALIZE_FN = lambda x: x / (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE)

MASTER_POS2JOINT = lambda x: MASTER_GRIPPER_POSITION_NORMALIZE_FN(x) * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE) + MASTER_GRIPPER_JOINT_CLOSE
MASTER_JOINT2POS = lambda x: MASTER_GRIPPER_POSITION_UNNORMALIZE_FN((x - MASTER_GRIPPER_JOINT_CLOSE) / (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE))
PUPPET_POS2JOINT = lambda x: PUPPET_GRIPPER_POSITION_NORMALIZE_FN(x) * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE) + PUPPET_GRIPPER_JOINT_CLOSE
PUPPET_JOINT2POS = lambda x: PUPPET_GRIPPER_POSITION_UNNORMALIZE_FN((x - PUPPET_GRIPPER_JOINT_CLOSE) / (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE))

MASTER_GRIPPER_JOINT_MID = (MASTER_GRIPPER_JOINT_OPEN + MASTER_GRIPPER_JOINT_CLOSE)/2