// point of sales model core

import { CSVDatabase } from "./database"
import { create_csv_database, print_head } from "./database"

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
}

export function create_item_dataframe(items: Item[]): CSVDatabase {
  const filepath = 'data/items.csv'
  return create_csv_database(filepath, items)
}

export function create_sale_dataframe(sales: Sale[]): CSVDatabase {
  const filepath = 'data/sales.csv'
  const data = sales.map(sale => ({
    ...sale,
    timestamp: sale.timestamp.toISOString() // Convert Date to string
  }))
  return create_csv_database(filepath, data)
}

export function create_inventory_dataframe(inventories: Inventory[]): CSVDatabase {
  const filepath = 'data/inventory.csv'
  return create_csv_database(filepath, inventories)
}

function create_models() {
  const items: Item[] = [
    { id: '1', name: 'Item 1', price: 100 },
    { id: '2', name: 'Item 2', price: 200 }
  ]

  const sales: Sale[] = [
    { id: '1', itemId: '1', quantity: 2, timestamp: new Date() },
    { id: '2', itemId: '2', quantity: 1, timestamp: new Date() }
  ]

  const inventories: Inventory[] = [
    { itemId: '1', quantity: 50 },
    { itemId: '2', quantity: 30 }
  ]

  const itemDB = create_item_dataframe(items)
  const saleDB = create_sale_dataframe(sales)
  const inventoryDB = create_inventory_dataframe(inventories)

  print_head(itemDB)
  print_head(saleDB)
  print_head(inventoryDB)
}