@microblink/blinkid-in-browser-sdk/src/MicroblinkSDK/LoadProgressUtils.ts

A simple ID scanning library for WebAssembly-enabled browsers.

/**
 * Copyright (c) Microblink Ltd. All rights reserved.
 */

export function convertEmscriptenStatusToProgress( emStatus: string ): number
{
    // roughly based on https://github.com/emscripten-core/emscripten/blob/1.39.11/src/shell.html#L1259
    if ( emStatus === "Running..." )
    {
        // download has completed, wasm execution has started
        return 100;
    }
    else if ( emStatus.length === 0 )
    {
        // empty message
        return 0;
    }

    const regExp = RegExp( /([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/ );
    const match = regExp.exec( emStatus );
    if ( match )
    {
        const currentValue = parseInt( match[ 2 ] );
        const maxValue = parseInt( match[ 4 ] );
        return currentValue * 100 / maxValue;
    }
    else
    {
        // Cannot parse emscripten status
        return NaN;
    }
}