from datetime import datetime
from flask.views import MethodView

from ..app import Application
from ..models.interface import HealthGet, HealthStatus
from . import routes as blp

instance = Application.get_instance()

@blp.route("/health")
class ApiVersion(MethodView):
    @blp.doc(summary="Returns the status and alive-time of the server")
    @blp.response(200, HealthGet, description="Successful operation")
    def get(self):
        response = {
            "alive_since": datetime.strftime(instance.alive_since, "%d.%m.%Y %H:%M:%S"),
            "alive_for": str(datetime.now() - instance.alive_since),
            "status": HealthStatus.OK
        }
        return response