from time import sleep
from threading import Thread

class FlaskPageThread(Thread):
    def __init__(self, delay, func, *args, **kwargs):
        self.delay    = delay
        self.func     = func
        self.args     = args
        self.page     = ("init", 500)
        self.hhealthy = False
        name  = kwargs.get("name", "FlaskPageThread")
        super().__init__(target=self.run, daemon=True, name=name)

    def genpage(self):
        try:
            data = self.func(*self.args)
            self.page = (data, 200)
            self.hhealthy = True
        except Exception as e:
            print("Exception: %s" % e)
            self.page = ("Internal error", 500)
            self.hhealthy = False

    def run(self):
        self.genpage()
        while True:
            sleep(self.delay)
            self.genpage()

if __name__ == "__main__":
    pass