chutney/garage_display.py

import colors
import json


class GarageDisplay:
    def __init__(self, characterDisplay, topRow):
        self.characterDisplay = characterDisplay
        self.topRow = topRow
        self.westDoorStartColumn = 0
        self.eastDoorStartColumn = 12
        self.currentState = {}
        self.closedOutlineColor = colors.RED
        self.closedFillColor = colors.RED
        self.openOutlineColor = colors.WHITE
        self.openFillColor = colors.WHITE
        self.garageFile = 'garage.json'

    def showGarageState(self):
        state = self.getGarageState()

        # TODO - only update the changed door so the other one doesn't flicker
        if state != self.currentState:
            self.currentState = state
            self.characterDisplay.clearRow(self.topRow, rowHeight=4)

            if self.isGarageStateValid(state):
                self.showState(state)

    def getGarageState(self):
        try:
            with open(self.garageFile) as file:
                return json.load(file)
        except Exception as e:
            print(e, flush=True)
            return {'error': True}

    def isGarageStateValid(self, state):
        return not 'error' in state

    def showState(self, state):
        if state["west-door"] == "closed":
            self.characterDisplay.displaySquare(
                x=self.westDoorStartColumn,
                y=self.topRow,
                outlineColor=self.closedOutlineColor,
                fillColor=self.closedFillColor
            )
        else:
            self.characterDisplay.displaySquare(
                x=self.westDoorStartColumn,
                y=self.topRow,
                outlineColor=self.openOutlineColor,
                fillColor=self.openFillColor
            )

        if state["east-door"] == "closed":
            self.characterDisplay.displaySquare(
                x=self.eastDoorStartColumn,
                y=self.topRow,
                outlineColor=self.closedOutlineColor,
                fillColor=self.closedFillColor
            )
        else:
            self.characterDisplay.displaySquare(
                x=self.eastDoorStartColumn,
                y=self.topRow,
                outlineColor=self.openOutlineColor,
                fillColor=self.openFillColor
            )