const logger = require('../../modules/colorfulLogger');
const { handleFatalError } = require('../../utils/errorHandler');
const { saveData } = require('../data/dataManager');

function setupProcessHandlers(client) {
    async function gracefulShutdown(signal) {
        logger.info(`${signal} signal received. Shutting down gracefully...`);
        try {
            await client.destroy();
            await saveData('history');
            process.exit(0);
        } catch (e) {
            logger.error(`Error during ${signal} shutdown: ${e.message}`);
            process.exit(1);
        }
    }

    process.on('SIGINT', () => gracefulShutdown('SIGINT'));
    process.on('SIGTERM', () => gracefulShutdown('SIGTERM'));

    process.on('uncaughtException', (error) => {
        handleFatalError(error, 'Uncaught Exception', client, () => saveData('history'));
    });

    process.on('unhandledRejection', (reason) => {
        const error = reason instanceof Error ? reason : new Error(String(reason));
        handleFatalError(error, 'Unhandled Rejection', client, () => saveData('history'));
    });
}

module.exports = { setupProcessHandlers };