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import React, { Component } from 'react'
import { connect } from 'react-redux'
import { useKeenSlider } from "app/utils/vendor/keen-slider/react"
import "keen-slider/keen-slider.min.css"
import actions from 'app/actions'
import { SpeakerIcon } from 'app/views/viewer/nav/viewer.icons'
import { MediaCitation } from './media.citation'
import { Arrow } from 'app/views/viewer/nav/viewer.icons'
const SPACING = 15
const SLIDES_PER_VIEW = 2
// obnoxious i have to do this but the slideChanged function would be "different" otherwise
let slideChangedHook = slider => console.log(slider)
let slideChanged = slider => slideChangedHook(slider)
const CarouselContainer = ({ element, media, cues, play_ts, withMouseWheel }) => {
const { image_order, caption_lookup } = media.settings
const [currentSlide, setCurrentSlide] = React.useState(0)
const [sliderRef, slider] = useKeenSlider({
slidesPerView: SLIDES_PER_VIEW,
mode: "free",
spacing: SPACING,
centered: true,
loop: false,
slideChanged: slideChanged,
withMouseWheel: withMouseWheel,
})
slideChangedHook = s => {
setCurrentSlide(s.details().relativeSlide)
}
// step thru this carousel's timeline, which is ordered in reverse BTW
if (element) {
element.timeline.some(cue => {
if (cue.start_ts < play_ts && (play_ts - cue.start_ts) < 0.5) {
let slide_index = cue.settings.seek_index
if (currentSlide < slide_index) {
setCurrentSlide(slide_index)
slider.moveToSlideRelative(slide_index)
}
return true
}
return false
})
}
const currentCaption = caption_lookup[image_order[Math.round(currentSlide)]]
return (
<Carousel
media={media}
slider={slider}
sliderRef={sliderRef}
currentSlide={currentSlide}
currentCaption={currentCaption}
cues={cues}
/>
)
}
const CarouselComponent = ({ media, slider, sliderRef, currentSlide, currentCaption, cues }) => {
const { image_order, display_lookup } = media.settings
return (
<div className="carousel-component">
<div className="carousel-positioning">
<div key={'carousel_' + media.id} ref={sliderRef} className='keen-slider carousel-items'>
{image_order.map((id, index) => {
const image = display_lookup[id]
// console.log(image)
return (
<CarouselItem
key={id}
image={image}
slider={slider}
seekAnnotation={cues && cues.lookup[index]}
/>
)
})}
</div>
<CarouselArrow
type="prev"
disabled={!!currentSlide}
onClick={() => {
slider.prev()
}}
/>
<CarouselArrow
type="next"
disabled={currentSlide < image_order.length - 1}
onClick={() => {
slider.next()
}}
/>
</div>
<MediaCitation key={'caption_' + media.id} media={(currentCaption && currentCaption.caption) ? currentCaption : media} />
<div className="carousel-nav" key={'arrows_' + media.id}>
<CarouselDots
currentSlide={currentSlide}
slides={image_order}
onPick={index => {
slider.moveToSlideRelative(index)
}}
/>
</div>
</div>
)
}
const Carousel = React.memo(CarouselComponent)
const CarouselArrow = ({ disabled, type, onClick }) => ((
<div
className={(disabled ? "nav-arrow" : "nav-arrow arrow-disabled") + " " + type}
tabIndex={0}
onClick={e => {
e.stopPropagation()
onClick()
}}
>
<Arrow type={type === 'prev' ? 'left' : 'right'} />
</div>
))
const CarouselDots = ({ slides, currentSlide, onPick }) => ((
<div className="dots">
{[...slides.keys()].map(index => {
return (
<div
key={index}
onClick={() => {
onPick(index)
}}
tabIndex={index}
className={"dot-item" + (Math.round(currentSlide) === index ? " active" : "")}
>
<div className="dot-circle" />
</div>
)
})}
</div>
))
const CarouselItem = ({ image, slider, seekAnnotation }) => {
return (
<div className='keen-slider__slide carousel-item'>
<div className="image-container" style={{ backgroundImage: 'url(' + image.url + ')' }}>
<img
src={image.url}
/>
{seekAnnotation && (
<div
className="speaker-icon"
onClick={() => {
slider.moveToSlideRelative(seekAnnotation.settings.seek_index)
actions.viewer.seekToTimestamp(seekAnnotation.start_ts)
}}
>
{SpeakerIcon}
</div>
)}
</div>
</div>
)
}
const mapStateToProps = state => ({
play_ts: state.audio.play_ts,
})
export default connect(mapStateToProps)(CarouselContainer)
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