import platform
from os import path
from typing import List

from backend.device import is_openvino_device
from constants import DEVICE
from paths import get_file_name


def is_reshape_required(
    prev_width: int,
    cur_width: int,
    prev_height: int,
    cur_height: int,
    prev_model: int,
    cur_model: int,
    prev_num_of_images: int,
    cur_num_of_images: int,
) -> bool:
    reshape_required = False
    if (
        prev_width != cur_width
        or prev_height != cur_height
        or prev_model != cur_model
        or prev_num_of_images != cur_num_of_images
    ):
        print("Reshape and compile")
        reshape_required = True

    return reshape_required


def enable_openvino_controls() -> bool:
    return is_openvino_device() and platform.system().lower() != "darwin" and platform.processor().lower() != 'arm'



def get_valid_model_id(
    models: List,
    model_id: str,
    default_model: str = "",
) -> str:
    if len(models) == 0:
        print("Error: model configuration file is empty,please add some models.")
        return ""
    if model_id == "":
        if default_model:
            return default_model
        else:
            return models[0]

    if model_id in models:
        return model_id
    else:
        print(
            f"Error:{model_id} Model not found in configuration file,so using first model : {models[0]}"
        )
        return models[0]


def get_valid_lora_model(
    models: List,
    cur_model: str,
    lora_models_dir: str,
) -> str:
    if cur_model == "" or cur_model is None:
        print(
            f"No lora models found, please add lora models to {lora_models_dir} directory"
        )
        return ""
    else:
        if path.exists(cur_model):
            return get_file_name(cur_model)
        else:
            print(f"Lora model {cur_model} not found")
            if len(models) > 0:
                print(f"Fallback model - {models[0]}")
                return get_file_name(models[0])
            else:
                print(
                    f"No lora models found, please add lora models to {lora_models_dir} directory"
                )
                return ""