import json
import cherrypy
from button import loadAll, Button
from dispatcher import Dispatcher
from lib import uuid

# Tweak: consider using serpy for serializing objects for JSON.

@cherrypy.expose
class ButtonDispatcher(Dispatcher):
    def GET(self, id=None):
        # GET /button - return all buttons
        if id is None:
            return self.response(loadAll())

        # GET /button/{id} - return single button
        self.validate_uuid(id)

        button = Button()
        return self.response(button.loadById(id).toJSON())

    def POST(self, id, status):
        # POST /button/{id}?status={} - updates button status
        self.validate_uuid(id)

        button = Button()
        button.loadById(id)

        cherrypy.log("Updating status to " + str(status))
        # TODO validate status
        button.status = int(status)
        button.save()

        return self.response(button.toJSON())

    def PUT(self, id=None):
        button = Button()

        # PUT /button - creates button
        if id is None:
            button.id = uuid.gen() 
            return self.response(button.save().toJSON())

        # PUT /button/{id} - presses button
        else:
            button.loadById(id)
            button.press()

        button.save()

        return self.response(button.toJSON())

    def DELETE(self, id):
        # DELETE /button/{id} - deletes button
        button = Button()
        button.loadById(id)
        button.delete()

        return self.response(True)