src/main/scala/xyz/driver/core/database.scala


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package xyz.driver.core

import slick.backend.DatabaseConfig
import slick.dbio.{DBIOAction, NoStream}
import slick.driver.JdbcProfile
import xyz.driver.core.time.Time

import scala.concurrent.Future

object database {

  trait Database {
    val profile: JdbcProfile
    val database: JdbcProfile#Backend#Database
  }

  object Database {

    def fromConfig(databaseName: String): Database = {
      val dbConfig: DatabaseConfig[JdbcProfile] = DatabaseConfig.forConfig(databaseName)

      new Database {
        val profile: JdbcProfile                   = dbConfig.driver
        val database: JdbcProfile#Backend#Database = dbConfig.db
      }
    }
  }

  type Schema = {
    def create: DBIOAction[Unit, NoStream, slick.dbio.Effect.Schema]
    def drop: DBIOAction[Unit, NoStream, slick.dbio.Effect.Schema]
  }

  trait ColumnTypes {
    val database: Database

    import database.profile.api._

    implicit def `xyz.driver.core.Id.columnType`[T] =
      MappedColumnType.base[Id[T], String](_.value, Id[T](_))

    implicit def `xyz.driver.core.Name.columnType`[T] =
      MappedColumnType.base[Name[T], String](_.value, Name[T](_))

    implicit def `xyz.driver.core.time.Time.columnType` =
      MappedColumnType.base[Time, Long](_.millis, Time(_))
  }

  trait DatabaseObject extends ColumnTypes {

    def createTables(): Future[Unit]
    def disconnect(): Unit
  }

  abstract class DatabaseObjectAdapter extends DatabaseObject {
    def createTables(): Future[Unit] = Future.successful(())
    def disconnect(): Unit           = {}
  }
}