import { DatabaseTransaction } from './DatabaseTransaction.js'
import { DbConfig } from './types.js'

/**
 * Abstract class representing a Database with a generic type extending DatabaseTransaction.
 * @template T - The type of DatabaseTransaction to be used.
 */
export abstract class Database<T extends DatabaseTransaction> {
  /**
   * Constructor for a class that takes in a database configuration object.
   * @param {DbConfig<any>} config - The database configuration object.
   * @returns None
   */
  protected constructor(public readonly config: DbConfig<any>) {}

  /**
   * Represents an abstract method for a transaction that returns a Promise of type T.
   * This method needs to be implemented by subclasses.
   * @returns A Promise that resolves to a value of type T.
   */
  public abstract transaction(): Promise<T>
}