// CAUTION ==== CAUTION ==== CAUTION ==== CAUTION ====
// !!! Modifying this file is NOT recommended !!!
// Incorrect modification of this file may result
// in inability to start this application
// ===================================================

const { exec } = require('child_process');
const fs = require('fs');
const util = require('util');
const execProm = util.promisify(exec);

// Simple sleep function using a promise
function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}

// Simulated progress bar to enhance visual appeal during operations
async function showLoadingBar(chalkColor) {
    const progressBarLength = 20; // Length of the progress bar
    let progressBar = '';
    process.stdout.write(chalkColor(`\r[${progressBar}${' '.repeat(progressBarLength)}] 0%`));
    return (progress) => {
        const filledLength = Math.round(progressBarLength * progress);
        progressBar = chalkColor('█'.repeat(filledLength));
        const emptyBar = ' '.repeat(progressBarLength - filledLength);
        process.stdout.write(chalkColor(`\r[${progressBar}${emptyBar}] ${Math.round(progress * 100)}%`));
        if (progress === 1) {
            console.log(); // Finish with a newline when complete
        }
    };
}

// Function to execute shell commands with progress tracking and minimal logging
async function executeCommand(command, preMessage, successMessage, chalkColor) {
    console.log(chalkColor(preMessage));

    const updateProgress = await showLoadingBar(chalkColor);
    try {
        await execProm(command, { maxBuffer: 1024 * 5000 });
        updateProgress(1); // Ensure the bar fills to 100% once command execution completes
        console.log(chalkColor(`✨  ${successMessage}`));
    } catch (error) {
        updateProgress(1); // Ensure the bar fills to 100% even on error
        console.error(chalkColor(`❌  Error during ${command}: ${error.message}`));
    }
}

// Read the 'main' script from package.json and run it
async function runMainScript() {
    const packageJson = JSON.parse(fs.readFileSync('package.json', 'utf8'));
    const mainScript = packageJson.main || 'index.js'; // Default to index.js if not specified
    return `node ${mainScript}`;
}

// Main function to orchestrate the setup and run with enhanced visuals
async function main() {
    console.log("\n\n🌟  Welcome to the Setup Wizard! Let's get started... 🌟\n");

    // Install chalk version 4.1.2 specifically
    await executeCommand(
        'npm install chalk@4.1.2',
        '🎨  Installing chalk 4.1.2... Please wait as we add some color to your life!.',
        'Chalk 4.1.2 installed',
        msg => msg
    );

    // Now that chalk is installed, require it for future logs
    const chalk = require('chalk');

    // Install remaining dependencies
    await executeCommand(
        'npm install',
        '🔧  Installing other dependencies... This might take a few seconds.',
        'Dependencies installed',
        chalk.blue
    );

    // Run the main script from package.json
    const runCommand = await runMainScript();
    await executeCommand(
        runCommand,
        '🌈  Setup Complete! Your application is ready to go! 🚀\n',
        // '🚀 Launching the application... Hold tight, we're almost there!',
        //'🌈  Setup Complete! Your application is ready to go! 🚀\n',
        '\n',
        chalk.magentaBright
    );

    console.log(chalk.magentaBright('\n'));
}

main();