import json
from typing import Callable, Iterable, Tuple
from urllib.parse import urlparse

import flask
import requests
from flask import g, make_response
from flask.json import jsonify

import ereuse_devicehub.teal.marshmallow
from ereuse_devicehub import __version__
from ereuse_devicehub.resources.inventory.model import Inventory
from ereuse_devicehub.teal.resource import Resource, View


def get_tag_version(app):
    """Get version of microservice ereuse-tag."""

    path = "/versions/version/"
    url = urlparse(Inventory.current.tag_provider.to_text())._replace(path=path)
    try:
        res = requests.get(url.geturl())
    except requests.exceptions.ConnectionError:
        app.logger.error("The microservice Tags is down!!")
        return {}

    if res.status_code == 200:
        return json.loads(res.content)
    else:
        return {}


class VersionView(View):
    def get(self, *args, **kwargs):
        """Get version of DeviceHub and ereuse-tag."""

        tag_version = get_tag_version(self.resource_def.app)
        versions = {'devicehub': __version__, "ereuse_tag": "0.0.0"}
        versions.update(tag_version)

        ret = jsonify(versions)
        ret.status_code = 200
        return ret


class VersionDef(Resource):
    __type__ = 'Version'
    SCHEMA = None
    VIEW = None  # We do not want to create default / documents endpoint
    AUTH = False

    def __init__(
        self,
        app,
        import_name=__name__,
        static_folder=None,
        static_url_path=None,
        template_folder=None,
        url_prefix=None,
        subdomain=None,
        url_defaults=None,
        root_path=None,
        cli_commands: Iterable[Tuple[Callable, str or None]] = tuple(),
    ):
        super().__init__(
            app,
            import_name,
            static_folder,
            static_url_path,
            template_folder,
            url_prefix,
            subdomain,
            url_defaults,
            root_path,
            cli_commands,
        )

        d = {'devicehub': __version__, "ereuse_tag": "0.0.0"}
        get = {'GET'}

        version_view = VersionView.as_view('VersionView', definition=self)
        self.add_url_rule('/', defaults=d, view_func=version_view, methods=get)