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from serenitas.utils.misc import get_credential_path
import json
import posixpath
from urllib.parse import urljoin
from typing import ClassVar
import requests


class MarkitAPI:
    api_key: ClassVar = None
    base_url: ClassVar = None

    @classmethod
    def set_api(cls):
        creds = cls.get_creds()
        r = requests.post(
            urljoin(creds["url"], "apikey"),
            data={"username": creds["username"], "password": creds["password"]},
        )
        cls.api_key = r.text
        cls.base_url = creds["url"]

    @classmethod
    def get_data(cls, asset_class, service="latest"):
        _asset_class_to_markit = {"sn_cds": "CD"}
        params = {
            "format": "json",
            "assetClass": _asset_class_to_markit[asset_class],
            "apikey": cls.api_key,
            "limit": 1000,
        }

        path = posixpath.join("parsing", "Quote", service)
        url = urljoin(cls.base_url, path)
        r = requests.get(url, params)
        # print(r.status_code, r.text[:100])
        return json.loads(r.text)

    @classmethod
    def get_creds(cls):
        cred_path = get_credential_path("markit_api")
        creds = json.load(cred_path.open())
        return creds