Caio Cotts
46 lines
941 B
JavaScript
46 lines
941 B
JavaScript
import { CHANGE_GAIN, CHANGE_PREAMP } from '../actions'
|
|
|
|
const getPreAmp = () => {
|
|
const storage = localStorage.getItem('preamp')
|
|
|
|
if (storage === null) {
|
|
return 0
|
|
} else {
|
|
const asFloat = parseFloat(storage)
|
|
return isNaN(asFloat) ? 0 : asFloat
|
|
}
|
|
}
|
|
|
|
const initialState = {
|
|
gainMode: localStorage.getItem('gainMode') || 'none',
|
|
preAmp: getPreAmp(),
|
|
}
|
|
|
|
export const replayGainReducer = (
|
|
previousState = initialState,
|
|
{ type, payload },
|
|
) => {
|
|
switch (type) {
|
|
case CHANGE_GAIN: {
|
|
localStorage.setItem('gainMode', payload)
|
|
return {
|
|
...previousState,
|
|
gainMode: payload,
|
|
}
|
|
}
|
|
case CHANGE_PREAMP: {
|
|
const value = parseFloat(payload)
|
|
if (isNaN(value)) {
|
|
return previousState
|
|
}
|
|
localStorage.setItem('preAmp', payload)
|
|
return {
|
|
...previousState,
|
|
preAmp: value,
|
|
}
|
|
}
|
|
default:
|
|
return previousState
|
|
}
|
|
}
|