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import { ZOOM_STEPS } from './constants'
import { clamp } from '../../util'
export const positionToTime = (y, { start_ts, zoom, duration }) => {
const secondsPerPixel = ZOOM_STEPS[zoom] * 0.1
const widthTimeDuration = window.innerHeight * secondsPerPixel
const timeMin = start_ts
const timeMax = Math.min(start_ts + widthTimeDuration, duration)
const timeWidth = timeMax - timeMin
return clamp(y * secondsPerPixel + start_ts, 0, timeMax)
}
export const timeToPosition = (ts, { start_ts, zoom, duration }) => {
const height = window.innerHeight
const secondsPerPixel = ZOOM_STEPS[zoom] * 0.1
const widthTimeDuration = height * secondsPerPixel
const timeMin = start_ts
const timeMax = Math.min(start_ts + widthTimeDuration, duration)
const timeWidth = timeMax - timeMin
const timeHalfHeight = height * secondsPerPixel / 2
if (ts < timeMin - timeHalfHeight) {
return -9999
}
if (ts > timeMax) {
return -9999
}
return (ts - timeMin) / timeWidth * height
}
export const getFirstPunctuationMarkIndex = text => {
return Math.min(
text.indexOf('. '),
text.indexOf('? '),
text.indexOf('! '),
text.indexOf('." '),
text.indexOf('?" '),
text.indexOf('!" '),
text.indexOf('.” '),
text.indexOf('?” '),
text.indexOf('!” '),
) + 1
}
export const cutFirstSentence = text => {
const textToCrop = text.trim().replace("\n", " ").split("\n")[0]
let cropIndex = getFirstPunctuationMarkIndex(textToCrop)
if (!cropIndex) cropIndex = textToCrop.length
const croppedText = textToCrop.substr(0, cropIndex).trim()
const updatedText = text.trim().replace(croppedText, '').trim()
actions.site.updateText(updatedText)
return croppedText
}
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