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import { resolveTxt } from 'dns';
import { videointelligence } from 'googleapis/build/src/apis/videointelligence';
import { isInteger } from 'lodash';
import * as React from 'react';
import { useEffect, useState, useCallback, useRef, useMemo } from "react"
import "./ProgressBar.scss"
import { MediaSegment } from './RecordingView';
interface ProgressBarProps {
videos: MediaSegment[],
setVideos: React.Dispatch<React.SetStateAction<MediaSegment[]>>,
orderVideos: boolean,
}
interface SegmentBox {
endTime: number,
startTime: number,
order: number,
}
interface CurrentHover {
index: number,
minX: number,
maxX: number
}
export function ProgressBar(props: ProgressBarProps) {
const progressBarRef = useRef<HTMLDivElement | null>(null)
// array for the order of video segments
const [segments, setSegments] = useState<JSX.Element[]>([]);
const [ordered, setOrdered] = useState<SegmentBox[]>([]);
const [dragged, setDragged] = useState<number>(-1);
// const totalTime = useMemo(() => props.videos.lastElement().endTime, [props.videos])
const totalTime = () => props.videos.lastElement().endTime
// const memoTotal = useMemo(totalTime, [props.videos])
useEffect(() => {
const segmentsJSX = ordered.map((seg, i) =>
<div id={`segment-${i.toString()}`} className={ dragged === i ? 'segment-hide' : 'segment'} style={{ width: `${((seg.endTime - seg.startTime) / totalTime()) * 100}%` }}>{seg.order}</div>);
setSegments(segmentsJSX)
}, [dragged, ordered])
useEffect(() => {
const order = props.videos.length
if (order && !props.orderVideos) {
const { endTime, startTime } = props.videos.lastElement();
setOrdered(prevOrdered => {
return [...prevOrdered, { endTime, startTime , order }];
});
}
// }props.videos.map((vid, order) => {
// //const { endTime, startTime } = vid
// // TODO: not tranfer the blobs around
// return { ...vid, order };
// }))
}, [props.videos]);
useEffect(() => {
props.setVideos(vids => ordered.map((seg) => vids[seg.order - 1]));
}, [props.orderVideos]);
// const handleClick = (e: React.MouseEvent) => {
// let progressbar = document.getElementById('progressbar')!
// let bounds = progressbar!.getBoundingClientRect();
// let x = e.clientX - bounds.left;
// let percent = x / progressbar.clientWidth * 100
// for (let i = 0; i < props.marks.length; i++) {
// let start = i == 0 ? 0 : props.marks[i-1];
// if (percent > start && percent < props.marks[i]) {
// props.playSegment(i)
// // console.log(i)
// // console.log(percent)
// // console.log(props.marks[i])
// break
// }
// }
// }
const updateLastHover = (segId: number): CurrentHover | null => {
// get the segId of the segment that will become the new bounding area
const rect = progressBarRef.current?.children[segId].getBoundingClientRect()
if (rect == null) return null
return {
index: segId,
minX: rect.x,
maxX: rect.x + rect.width,
}
}
const onPointerDown = (e: React.PointerEvent<HTMLDivElement>) => {
console.log('pointer down')
// don't move the videobox element
e.stopPropagation()
// get the segment the user clicked on to be dragged
const clickedSegment = e.target as HTMLDivElement & EventTarget
// get the profess bar ro add event listeners
// don't do anything if null
const progressBar = progressBarRef.current
if (progressBar == null || clickedSegment.id === progressBar.id) return
const ptrId = e.pointerId;
progressBar.setPointerCapture(ptrId)
const rect = clickedSegment.getBoundingClientRect()
// id for segment is like 'segment-1' or 'segment-10',
// so this works to get the id
const segId = parseInt(clickedSegment.id.split('-')[1])
// set the selected segment to be the one dragged
setDragged(segId)
// this is the logic for storing the lower X bound and upper X bound
// to know whether a swap is needed between two segments
let lastHover: CurrentHover = {
index: segId,
minX: rect.x,
maxX: rect.x + rect.width,
}
// create the div element that tracks the cursor
const detchedSegment = document.createElement("div")
initDeatchSegment(detchedSegment, rect);
const updateSegmentOrder = (event: PointerEvent): void => {
event.stopPropagation();
event.preventDefault();
// this fixes a bug where pointerup doesn't fire while cursor is upped while being dragged
console.log('update cursor', progressBar.hasPointerCapture(ptrId), ptrId)
if (!progressBar.hasPointerCapture(ptrId)) {
placeSegmentandCleanup();
return;
}
followCursor(event, detchedSegment, rect)
const curX = event.clientX;
if (curX < lastHover.minX && lastHover.index > 0) {
swapSegments(lastHover.index, lastHover.index - 1)
lastHover = updateLastHover(lastHover.index - 1) ?? lastHover
}
else if (curX > lastHover.maxX && lastHover.index < segments.length - 1) {
swapSegments(lastHover.index, lastHover.index + 1)
lastHover = updateLastHover(lastHover.index + 1) ?? lastHover
}
}
const placeSegmentandCleanup = (event?: PointerEvent): void => {
event?.stopPropagation();
event?.preventDefault();
// remove the update event listener for pointermove
progressBar.removeEventListener('pointermove', updateSegmentOrder), { once: true }
// remove the floating segment from the DOM
detchedSegment.remove()
// dragged is -1 is equiv to nothing being dragged, so the normal state
// so this will place the segment in it's location and update the segment bar
setDragged(-1);
}
progressBar.addEventListener('pointermove', updateSegmentOrder)
progressBar.addEventListener('pointerup', placeSegmentandCleanup, { once: true })
}
const swapSegments = (oldIndex: number, newIndex: number) => {
if (newIndex == null) return
setOrdered(prevOrdered => {
const cpy = [...prevOrdered]
cpy[oldIndex] = cpy[newIndex]
cpy[newIndex] = prevOrdered[oldIndex]
return cpy
})
setDragged(newIndex)
}
const initDeatchSegment = (dot: HTMLDivElement, rect: DOMRect) => {
dot.classList.add("segment-selected")
dot.style.transitionDuration = '0s';
dot.style.position = 'absolute';
dot.style.zIndex = '999';
dot.style.width = `${rect.width}px`;
dot.style.height = `${rect.height}px`;
dot.style.left = `${rect.x}px`;
dot.style.top = `${rect.y}px`;
dot.draggable = false;
document.body.append(dot)
}
const cleanupDetachSegment = (dot: HTMLDivElement) => {
dot.remove()
}
const followCursor = (event: PointerEvent, dot: HTMLDivElement, rect: DOMRect): void => {
// event.stopPropagation()
// const { width, height } = dot.getBoundingClientRect()
const { width, height } = rect;
dot.style.left = `${event.clientX - width/2}px`;
dot.style.top = `${event.clientY - height/2}px`;
}
return (
<div className="progressbar" id="progressbar" onPointerDown={onPointerDown} ref={progressBarRef}>
{/* <div
className="progressbar done"
style={{ width: `${props.progress}%` }}
// onClick={handleClick}
></div> */}
{segments}
</div>
)
}
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