import click

from ffx.model.show import Show


class ShowController():
    
    def __init__(self, context):
        
        self.context = context
        self.Session = self.context['database']['session'] # convenience


    def getShowDesciptor(self, showId):

        try:
            s = self.Session()
            q = s.query(Show).filter(Show.id == showId)

            if q.count():
                show = q.first() 
                return show.getDesciptor()

        except Exception as ex:
            raise click.ClickException(f"ShowController.getShowDesciptor(): {repr(ex)}")
        finally:
            s.close()

    def getShow(self, showId):

        try:
            s = self.Session()
            q = s.query(Show).filter(Show.id == showId)

            return q.first() if q.count() else None

        except Exception as ex:
            raise click.ClickException(f"ShowController.getShow(): {repr(ex)}")
        finally:
            s.close()

    def getAllShows(self):

        try:
            s = self.Session()
            q = s.query(Show)

            if q.count():
                return q.all()
            else:
                return []

        except Exception as ex:
            raise click.ClickException(f"ShowController.getAllShows(): {repr(ex)}")
        finally:
            s.close()


    def updateShow(self, showDescriptor):

        try:
            s = self.Session()
            q = s.query(Show).filter(Show.id == showDescriptor['id'])

            if not q.count():
                show = Show(id = int(showDescriptor['id']),
                        name = str(showDescriptor['name']),
                        year = int(showDescriptor['year']),
                        index_season_digits = showDescriptor['index_season_digits'],
                        index_episode_digits = showDescriptor['index_episode_digits'],
                        indicator_season_digits = showDescriptor['indicator_season_digits'],
                        indicator_episode_digits = showDescriptor['indicator_episode_digits'])

                s.add(show)
                s.commit()
                return True
            else:

                currentShow = q.first()

                changed = False
                if currentShow.name != str(showDescriptor['name']):
                    currentShow.name = str(showDescriptor['name'])
                    changed = True
                if currentShow.year != int(showDescriptor['year']):
                    currentShow.year = int(showDescriptor['year'])
                    changed = True

                if currentShow.index_season_digits != int(showDescriptor['index_season_digits']):
                    currentShow.index_season_digits = int(showDescriptor['index_season_digits'])
                    changed = True
                if currentShow.index_episode_digits != int(showDescriptor['index_episode_digits']):
                    currentShow.index_episode_digits = int(showDescriptor['index_episode_digits'])
                    changed = True
                if currentShow.indicator_season_digits != int(showDescriptor['indicator_season_digits']):
                    currentShow.indicator_season_digits = int(showDescriptor['indicator_season_digits'])
                    changed = True
                if currentShow.indicator_episode_digits != int(showDescriptor['indicator_episode_digits']):
                    currentShow.indicator_episode_digits = int(showDescriptor['indicator_episode_digits'])
                    changed = True

                if changed:
                    s.commit()
                return changed

        except Exception as ex:
            raise click.ClickException(f"ShowController.updateShow(): {repr(ex)}")
        finally:
            s.close()


    def deleteShow(self, show_id):
        try:
            s = self.Session()
            q = s.query(Show).filter(Show.id == int(show_id))


            if q.count():

                #DAFUQ: https://stackoverflow.com/a/19245058
                # q.delete()
                show = q.first()
                s.delete(show)

                s.commit()
                return True
            return False

        except Exception as ex:
            raise click.ClickException(f"ShowController.deleteShow(): {repr(ex)}")
        finally:
            s.close()