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import React, { Component } from 'react'
import { Route } from 'react-router-dom'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import { floatLT, floatLTE } from 'app/utils'
import actions from 'app/actions'
import ParagraphForm from '../components/paragraph.form'
import { MEDIA_TYPES } from 'app/constants'
class ParagraphList extends Component {
state = {
paragraphs: [],
currentParagraph: -1,
currentAnnotation: -1,
}
componentDidMount() {
this.build()
}
componentDidUpdate(prevProps) {
if (this.props.paragraph !== prevProps.paragraph) {
this.build()
}
if (this.props.audio.play_ts === prevProps.audio.play_ts) return
this.setCurrentParagraph()
}
setCurrentParagraph() {
const { play_ts } = this.props.audio
const insideParagraph = this.state.paragraphs.some(paragraph => {
if (floatLTE(paragraph.start_ts, play_ts) && floatLT(play_ts, paragraph.end_ts)) {
this.setCurrentAnnotation(paragraph, play_ts)
return true
}
return false
})
if (!insideParagraph) {
this.setState({
currentParagraph: -1,
currentAnnotation: -1,
})
}
}
setCurrentAnnotation(paragraph, play_ts) {
const { id: currentParagraph, annotations } = paragraph
let currentAnnotation
let annotation
let i = 0
let len = annotations.length
for (let i = 0; i < len - 1; i++) {
if (floatLT(play_ts, annotations[i+1].start_ts)) {
currentAnnotation = annotations[i].id
break
}
}
if (!currentAnnotation) {
currentAnnotation = annotations[len-1].id
}
this.setState({ currentParagraph, currentAnnotation })
}
build() {
const { order: annotationOrder, lookup: annotationLookup } = this.props.annotation
const { lookup: paragraphLookup } = this.props.paragraph
let currentParagraph = {}
const paragraphs = []
// loop over the annotations in time order
annotationOrder.forEach((annotation_id, i) => {
const annotation = annotationLookup[annotation_id]
const paragraph = paragraphLookup[annotation.paragraph_id]
// if this annotation is media, insert it after the current paragraph
if (MEDIA_TYPES.has(annotation.type)) {
paragraphs.push({
id: ('index_' + i),
type: annotation.type,
start_ts: annotation.start_ts,
end_ts: 0,
annotations: [annotation],
})
return
}
// if this annotation is from a different paragraph, make a new paragraph
if (annotation.paragraph_id !== currentParagraph.id) {
const paragraph_type = getParagraphType(annotation, paragraph)
currentParagraph = {
id: annotation.paragraph_id || ('index_' + i),
type: paragraph_type,
start_ts: annotation.start_ts,
end_ts: 0,
annotations: [],
}
paragraphs.push(currentParagraph)
}
// if this annotation is a paragraph_end, set the end timestamp
if (annotation.type === 'paragraph_end') {
currentParagraph.end_ts = annotation.start_ts
}
// otherwise, just append this annotation to the paragraph
else {
currentParagraph.annotations.push(annotation)
}
})
for (let i = 0; i < (paragraphs.length - 1); i++) {
if (!paragraphs[i].end_ts) {
paragraphs[i].end_ts = paragraphs[i+1].start_ts - 0.1
}
}
this.setState({ paragraphs })
}
render() {
const {
media, paragraphElementLookup, selectedParagraph,
onAnnotationClick, onParagraphDoubleClick
} = this.props
const { paragraphs, currentParagraph, currentAnnotation } = this.state
return paragraphs.map(paragraph => {
if (selectedParagraph && selectedParagraph.id === paragraph.id) {
paragraph = selectedParagraph
}
if (paragraph.type in paragraphElementLookup) {
const ParagraphElement = paragraphElementLookup[paragraph.type]
return (
<ParagraphElement
key={paragraph.id}
paragraph={paragraph}
media={media}
currentParagraph={paragraph.id === currentParagraph}
currentAnnotation={paragraph.id === currentParagraph && currentAnnotation}
onAnnotationClick={onAnnotationClick}
onDoubleClick={onParagraphDoubleClick}
/>
)
} else {
return <div key={paragraph.id}>{'(waiting to implement' + paragraph.type + ')'}</div>
}
})
}
}
const getParagraphType = (annotation, paragraph) => {
if (!paragraph) {
return annotation.type
}
return paragraph.type
}
const mapStateToProps = state => ({
paragraph: state.paragraph.index,
annotation: state.annotation.index,
audio: state.audio,
media: state.media.index,
})
const mapDispatchToProps = dispatch => ({
})
export default connect(mapStateToProps, mapDispatchToProps)(ParagraphList)
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