simple-jn-db/index.js

A Simple FS Orientated Database Package

var fs = require('fs');

exports.working = function() {
  console.log("Yes, the DB is still working!");
}

exports.createDb = function (name) {
  var dir = `./${name}`;
  if (!fs.existsSync(dir)){
    fs.mkdirSync(dir);
  } else {
    throw new Error("A database with that name already exists.");
  }
  console.log(`A database with the name ${name} has been created.`);
}

exports.createTable = function (dbname, tbname) {
  var writeStream = fs.createWriteStream(`./${dbname}/${tbname}.txt`);
  writeStream.end();
  var tb = `./${tbname}`;
  if (!fs.existsSync(tb)){
    var writeStream = fs.createWriteStream(`./${dbname}/${tbname}.txt`);
    console.log(`A table named ${tbname} inside ${dbname} has been created. `);
  } else {
    throw new Error("A table with that name already exists.");
  }
}

exports.insert = function (dbname, tbname, key, value) {
  var tb = `./${dbname}/${tbname}.txt`;
  if (fs.existsSync(tb)){
    var writeStream = fs.createWriteStream(`./${dbname}/${tbname}.txt`);
    writeStream.write(`${key}:${value}\n`);
    writeStream.end();
  } else {
    throw new Error("The table and or database with that name already exists.");
  }
}

exports.get = function (dbname, tbname, key) {
  var tb = `./${dbname}/${tbname}.txt`;
  if (fs.existsSync(tb)){
    var content;
    var contentfix;
// First I want to read the file
  fs.readFile(tb, 'utf8', function read(err, data) {
    if (err) {
        throw err;
    }
    content = data;
    contentfix = content.slice(key.length+1);
    return contentfix;
    });
  } else {
    throw new Error("The table and or database with that name already exists.");
  }
}