// point of sales core

interface Item {
  id: string
  name: string
  price: number
  // other properties...
}

interface Sale {
  id: string
  itemId: string
  quantity: number
  timestamp: Date
  // other properties...
}

interface Inventory {
  itemId: string
  quantity: number
}

// import * as rocksdb from 'rocksdb'

// // Open a RocksDB database
// const db = open({ create_if_missing: true }, './mydb')

// // Put a key-value pair
// db.put('key', 'value', (err) => {
//   if (err) throw err
//   console.log('Key-value pair stored successfully')
// })

// // Get a value by key
// db.get('key', (err, value) => {
//   if (err) throw err
//   console.log('Retrieved value:', value)
// })

// // Close the database
// db.close((err) => {
//   if (err) throw err
//   console.log('Database closed')
// })

const level = require('level-rocksdb')

// 1) Create our database, supply location and options.
//    This will create or open the underlying RocksDB store.
const db = level('./mydb')

// 2) Put a key & value
db.put('name', 'Level', function (err: any) {
  if (err) return console.log('Ooops!', err) // some kind of I/O error

  // 3) Fetch by key
  db.get('name', function (err: any, value: any) {
    if (err) return console.log('Ooops!', err) // likely the key was not found

    // Ta da!
    console.log('name=' + value)
  })
})