import { promises as fs } from 'fs';
import path from 'path';

export default async function repoHistory(data) {
    try {
        const repoHistoryDir = path.join(process.cwd(), '/config/versions');
        const maxBackupCount = parseInt(process.env.MAX_REPO_BACKUP_COUNT) || 8;
        const timestamp = new Date().toISOString();
        const backupDate = timestamp.split('T')[0];

        //Create the directory if it does not exist
        await fs.mkdir(repoHistoryDir, { recursive: true });

        const existingBackups = await fs.readdir(repoHistoryDir);

        if (existingBackups.length >= maxBackupCount) {
            existingBackups.sort();
            const backupsToDelete = existingBackups.slice(
                0,
                existingBackups.length - maxBackupCount + 1
            );
            for (const backupToDelete of backupsToDelete) {
                const backupFilePathToDelete = path.join(
                    repoHistoryDir,
                    backupToDelete
                );
                await fs.unlink(backupFilePathToDelete);
            }
        }

        const backupFileName = `${backupDate}.log`;
        const backupFilePath = path.join(repoHistoryDir, backupFileName);
        const jsonData = JSON.stringify(data, null, 2);

        const logData = `\n>>>> History of file repo.json at "${timestamp}" <<<<\n${jsonData}\n`;

        // Écrire ou réécrire le fichier avec le contenu mis à jour
        await fs.appendFile(backupFilePath, logData);
    } catch (error) {
        console.error(
            'An error occurred while saving the repo history :',
            error.message
        );
    }
}