import copy
import json
import os
import tempfile


DEFAULT_ROTATION1 = {
    "rotation_angle": 90,
    "flip_x": True,
    "flip_y": False,
}

DEFAULT_ROTATION2 = {
    "rotation_angle": 90,
    "flip_x": False,
    "flip_y": False,
}


def normalize_rotation_config(value, default_config):
    if value is None:
        return copy.deepcopy(default_config)
    if isinstance(value, dict):
        return copy.deepcopy(value)
    if isinstance(value, str):
        text = value.strip()
        if not text or text.lower() == "default":
            return copy.deepcopy(default_config)
        if text.startswith("{"):
            return json.loads(text)
    return value


def write_temp_rotation_config(config, label):
    path = os.path.join(tempfile.gettempdir(), f"gripper_{label}_rotation.json")
    with open(path, "w", encoding="utf-8") as f:
        json.dump(config, f, ensure_ascii=False, indent=2)
    return path