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import React, { Component } from 'react'
import { connect } from 'react-redux'
import actions from 'app/actions'
import { timestampToSeconds, floatInRange } from 'app/utils'
import { parseSubtitles } from 'app/utils/transcript.utils'
export default class VideoSubtitles extends Component {
state = {
subtitles: [],
current: null,
}
componentDidMount() {
this.loadSubtitles()
}
componentDidUpdate(prevProps) {
if (this.props.play_ts !== prevProps.play_ts) {
this.updateCurrentSubtitle()
}
}
loadSubtitles() {
const subtitles = parseSubtitles(this.props.mediaItem, 0)
if (subtitles) {
this.setState({ subtitles, current: null })
}
}
updateCurrentSubtitle() {
const { play_ts } = this.props
const current = this.state.subtitles.filter(({ start_ts, end_ts }) => (
floatInRange(start_ts, play_ts, end_ts )
)).slice(-1)
if (!current.length) {
this.setState({ current: null })
} else {
this.setState({ current: current[0] })
}
}
render() {
const { cc } = this.props
const { current } = this.state
if (!cc || !current) return <div className="video-subtitles hidden" />
return (
<div className="video-subtitles">
<span>{current.lines.join(" ")}</span>
</div>
)
}
}
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