File "extract-video-chapters.ts"
Full Path: /home/warrior1/public_html/wp-content/plugins/jetpack/extensions/blocks/videopress/video-chapters/utils/extract-video-chapters.ts
File size: 1.79 KB
MIME-type: text/plain
Charset: utf-8
export type VideoPressChapter = {
startAt: string;
title: string;
};
/**
* Extracts chapter information from a single text line
*
* @param {string} line - The line to be processed
* @returns {VideoPressChapter} - Title and start time of the chapter
*/
function extractSingleChapter( line: string ): VideoPressChapter | null {
const regex = /(?<timeBlock>\(?(?<time>\d{1,2}:\d{2}:\d{2}|\d{1,2}:\d{2})\)?)/;
const result = regex.exec( line );
if ( result == null || result.groups == null ) {
return null;
}
const {
groups: { timeBlock, time },
} = result;
const blockIndex = line.indexOf( timeBlock );
const remainingLength = line.length - timeBlock.length;
const title = ( blockIndex < remainingLength / 2
? line.substring( blockIndex + timeBlock.length, line.length )
: line.substring( 0, blockIndex )
)
.trim()
.replace( /(\s-$)|(^-\s)/, '' );
const timeSections = time.split( ':' );
if ( timeSections[ 0 ].length === 1 ) {
timeSections[ 0 ] = `0${ timeSections[ 0 ] }`;
}
if ( timeSections.length === 2 ) {
timeSections.unshift( '00' );
}
const startAt = timeSections.join( ':' );
return { startAt, title };
}
/**
* Extracts chapter information from a single text line
*
* @param {string} text - The text to be processed
* @returns {Array<VideoPressChapter>} - Title and start time of all chapters, sorted by start time
*/
export default function extractVideoChapters( text: string ): Array< VideoPressChapter > {
const lines = text.split( '\n' );
const chapters = lines
.map( line => extractSingleChapter( line ) )
.filter( chapter => chapter !== null ) as Array< VideoPressChapter >;
return chapters.sort( ( lineA, lineB ) => {
return lineA.startAt.localeCompare( lineB.startAt );
} );
}
export { extractSingleChapter, extractVideoChapters };