mocktail-cli/src/printMocktailLogo.ts

**Craft your data cocktail — realistic mock data, shaken not stirred.**

import chalk from 'chalk';

function sleep(ms: number): Promise<void> { 
  return new Promise(r => setTimeout(r, ms)); 
}

// Neon glow effect cycles between two colors
function neonGlow(text: string, step: number): string {
  const colors = [chalk.hex('#00ffc8').bold, chalk.hex('#8e44ad').bold];
  const color = colors[step % colors.length];
  return color?.(text) || text;
}

// Animate cocktail bubbles moving up and down
async function animateCocktailBubbles(cycles: number = 8): Promise<void> {
  const frames = [
    '     🍸       ',
    '    🍸        ',
    '     🍸       ',
    '      🍸      ',
  ];
  for (let i = 0; i < cycles; i++) {
    process.stdout.write('\r' + chalk.hex('#00d8c9')(frames[i % frames.length]));
    await sleep(150);
  }
  process.stdout.write('\n');
}

// Typewriter effect for tagline with blinking cursor
async function typeTagline(text: string): Promise<void> {
  for (let i = 0; i <= text.length; i++) {
    const visible = chalk.hex('#8e44ad').italic(text.slice(0, i));
    const cursor = i < text.length ? chalk.hex('#00d8c9')('_') : ' ';
    process.stdout.write('\r' + visible + cursor);
    await sleep(80);
  }
  process.stdout.write('\n\n');
}

async function printMocktailLogo(): Promise<void> {
  // Static cat art (purple)
  console.log(chalk.hex('#8e44ad')('     .   .'));
  console.log(chalk.hex('#8e44ad')('     |\\_/|'));
  console.log(chalk.hex('#8e44ad')('    ( o o )'));
  console.log(chalk.hex('#8e44ad')('     > ^ <'));
  console.log();

  // Cocktail bubbles animation
  await animateCocktailBubbles();

  // Neon glowing banner cycling 10 times
  const banner = [
    ' __  __            _        _       _ ',
    '|  \\/  | ___  _ __| |_ __ _| | ___ | |',
    "| |\\/| |/ _ \\| '__| __/ _` | |/ _ \\| |",
    '| |  | | (_) | |  | || (_| | | (_) |_|',
    '|_|  |_|\\___/|_|   \\__\\__,_|_|\\___/(_)',
  ];

  for (let step = 0; step < 10; step++) {
    process.stdout.write('\x1Bc'); // Clear screen

    // Print cat again
    console.log(chalk.hex('#8e44ad')('     .   .'));
    console.log(chalk.hex('#8e44ad')('     |\\_/|'));
    console.log(chalk.hex('#8e44ad')('    ( o o )'));
    console.log(chalk.hex('#8e44ad')('     > ^ <'));
    console.log();

    // Cocktail (static)
    console.log(chalk.hex('#00d8c9')('     🍸'));
    console.log();

    // Banner with neon glow cycling
    for (const line of banner) {
      console.log(neonGlow(line, step));
    }
    await sleep(150);
  }

  // Final full banner (cyan)
  console.log();
  for (const line of banner) {
    console.log(chalk.cyan.bold(line));
  }
  console.log();

  // Branding
  console.log(chalk.hex('#00d8c9').bold('      MOCKTAIL') + chalk.hex('#8e44ad').italic('-CLI'));
  
  // Tagline typing with blinking cursor
  await typeTagline('Schema-aware Mock Data Generator CLI');
}

export default printMocktailLogo;