import io
import json
import os
from http import HTTPStatus

import requests
cimport constants
from hardware_service cimport HardwareService, HardwareInfo
from security cimport Security
from io import BytesIO

cdef class ApiClient:
    """Handles API authentication and downloading of the AI model."""
    def __init__(self, str email, str password, str folder):
        self.email = email
        self.password = password
        self.folder = folder
        if os.path.exists(<str>constants.TOKEN_FILE):
            with open(<str>constants.TOKEN_FILE, "r") as file:
                self.token = file.read().strip()
        else:
            self.token = None

    cdef get_encryption_key(self, str hardware_hash):
        cdef str key = f'{self.email}-{self.password}-{hardware_hash}-#%@AzaionKey@%#---'
        return Security.calc_hash(key)

    cdef login(self, str email, str password):
        response = requests.post(f"{constants.API_URL}/login", json={"email": email, "password": password})
        response.raise_for_status()
        self.token = response.json()["token"]

        with open(<str>constants.TOKEN_FILE, 'w') as file:
            file.write(self.token)


    cdef load_bytes(self, str filename):
        hardware_service = HardwareService()
        cdef HardwareInfo hardware = hardware_service.get_hardware_info()

        if self.token is None:
            self.login(self.email, self.password)

        url = f"{constants.API_URL}/resources/get/{self.folder}"
        headers = {
            "Authorization": f"Bearer {self.token}",
            "Content-Type": "application/json"
        }

        payload = json.dumps(
        {
            "password": self.password,
            "hardware": hardware.to_json_object(),
            "fileName": filename
        }, indent=4)
        response = requests.post(url, data=payload, headers=headers, stream=True)

        if response.status_code == HTTPStatus.UNAUTHORIZED or response.status_code == HTTPStatus.FORBIDDEN:
            self.login(self.email, self.password)
            headers = {
                "Authorization": f"Bearer {self.token}",
                "Content-Type": "application/json"
            }
            response = requests.post(url, data=payload, headers=headers, stream=True)

        if response.status_code == HTTPStatus.INTERNAL_SERVER_ERROR:
            print('500!')

        key = self.get_encryption_key(hardware.hash)

        stream = BytesIO(response.raw.read())
        return Security.decrypt_to(stream, key)

    cdef load_ai_model(self):
        return self.load_bytes(constants.AI_MODEL_FILE)

    cdef load_queue_config(self):
        return self.load_bytes(constants.QUEUE_CONFIG_FILENAME).decode(encoding='utf-8')