generate angular material theme from only orimary and warn color

mpg.ts

import { execSync } from 'child_process';
import { join } from 'path';
import { readFileSync, writeFileSync } from 'fs';
import * as sassExtract from 'sass-extract';

const materilPalettePath = './src/modules/common/style/angular-material';
const warnColor = '#ed1c24';

sassExtract.render({
    file: `./src/modules/common/style/colors.scss`,
}).then(rendered => {
    generatePaletteFile(rendered.vars.global.$mainColor.value.hex, materilPalettePath, 'primary.scss');
    replaceInFile(
        join(materilPalettePath, 'primary.scss'),
        '$palette',
        '$primaryPalette'
    );

    const primaryColorHex: number = parseInt(rendered.vars.global.$mainColor.value.hex.replace('#', ''), 16);
    const whiteColorHex: number = 0xffffff;
    const accentColorHexStr: string = `#${convertRgbaToHex(primaryColorHex, 0.5, whiteColorHex)}`;

    generatePaletteFile(accentColorHexStr, materilPalettePath, 'accent.scss');
    replaceInFile(
        join(materilPalettePath, 'accent.scss'),
        '$palette',
        '$accentPalette'
    );

    generatePaletteFile(warnColor, materilPalettePath, 'warn.scss');
    replaceInFile(
        join(materilPalettePath, 'warn.scss'),
        '$palette',
        '$warnPalette'
    );
});

function generatePaletteFile(color: string, path: string, filename: string) {
    execSync(`material-palette-generator -c '${color}' --format material2 -d ${path} --file-name ${filename}`, {
        maxBuffer: 1024 * 1024,
        encoding: 'utf8',
        stdio: 'inherit'
    });
}

function replaceInFile(path: string, searchValue: string | RegExp, replaceValue: string) {
    let fileStr = readFileSync(path, 'utf8');
    fileStr = fileStr.replace(searchValue, replaceValue);
    writeFileSync(path, fileStr, 'utf8');
}

function convertRgbaToHex(color: number, alpha: number, backgroundColor: number): string {
    return (color * alpha + backgroundColor * (1 - alpha)).toString(16);
}