#!/usr/bin/env node

const readline = require('readline');
const { execSync } = require('child_process');
const args = process.argv.slice(2);
const packageJson = require('./package.json');
const currentVersion = packageJson.version;
const emojis = require('./emojis');

// Check for a new version
const latestVersion = execSync('npm show aniemoji version').toString().trim();

if (latestVersion !== currentVersion) {
  console.log(`A new version of aniemoji is available (${latestVersion}).`);
  console.log(`Consider updating using 'npm update -g aniemoji'\n`);
}

// Check for the --list flag
if (args.includes('--list')) {
  console.log('Available emojis and their keywords:');
  Object.entries(emojis).forEach(([keyword, symbol]) => console.log(`${keyword}: ${symbol}`));
} else if (args.includes('--version') || args.includes('-v')) {
  console.log(`aniemoji v${packageJson.version}`);
} else if (args.includes('--author')) {
  console.log('Author Information -');
  console.log('\n'); // Line gap
  console.log('Name: Maruf OVi');
  console.log('Skills: Web Dev. Programmer');
  console.log('GitHub: https://github.com/iamovi');
  console.log('Portfolio: https://oviportfo.netlify.app');
} else if (args.includes('--help')) {
  console.log('aniemoji - Fun with Emojis');
  console.log('\nCommands:');
  console.log('  aniemoji --list     Display available emojis and their keywords.');
  console.log('  aniemoji --version  Display the current version of aniemoji.');
  console.log('  aniemoji --author   Display author information.');
  console.log('  aniemoji --help     Display this help message.');
  console.log('\nUsage:');
  console.log('  aniemoji              Display available emojis.');
  console.log('  aniemoji f            Display the "🖕" emoji.');
  console.log('  aniemoji --list       Display available emojis and their keywords.');
  console.log('  aniemoji --version    Display the current version of aniemoji.');
  console.log('  aniemoji --author     Display author information.');
  console.log('  aniemoji --help       Display this help message.');
} else {
  // Check if any emoji keywords are provided as arguments
  const emojiKeyword = args.find(arg => arg in emojis);
  if (emojiKeyword) {
    const selectedEmoji = emojis[emojiKeyword];
    console.log(selectedEmoji);

    // Set up readline interface in raw mode to capture individual key presses
    const rl = readline.createInterface({
      input: process.stdin,
      output: process.stdout
    });

    rl.output.write(`Selected Emoji: ${selectedEmoji}\n`);
    rl.output.write('Choose an option (use arrow keys and press Enter):\n');
    const options = ['copy', 'view all emoji'];
    let selectedIndex = 0;

    function printOptions() {
      readline.moveCursor(rl.output, 0, -options.length - 1);
      readline.clearScreenDown(rl.output);
      rl.output.write(`Selected Emoji: ${selectedEmoji}\n`);
      rl.output.write(options.map((option, index) => `${selectedIndex === index ? '-> ' : ''}${option}`).join('\n') + '\n');
    }

    printOptions();

    rl.input.setRawMode(true);
    rl.resume();

    rl.input.on('keypress', (key, data) => {
      if (data && data.ctrl && data.name === 'c') {
        // Handle Ctrl+C to exit
        rl.close();
      } else if (data.name === 'up' && selectedIndex > 0) {
        // Handle arrow up
        selectedIndex--;
        printOptions();
      } else if (data.name === 'down' && selectedIndex < options.length - 1) {
        // Handle arrow down
        selectedIndex++;
        printOptions();
      } else if (data.name === 'return') {
        // Handle Enter
        const selectedOption = options[selectedIndex];
        if (selectedOption === 'view all emoji') {
          console.log('Available emojis:');
          console.log(Object.values(emojis).join(' '));
        } else if (selectedOption === 'copy') {
          console.log(`To copy the emoji " ${selectedEmoji} " , please select it and press Ctrl + Shift + C`);
        }
        rl.close();
      }
    });
  } else if (args.length === 0) {
    console.log('Available emojis:');
    console.log(Object.values(emojis).join(' '));
    console.log('\nMade with love by Maruf OVi.');
  } else {
    console.log('No emojis found :)');
  }
}