package database

import (
  "log"
  //"time"
  "gorm.io/driver/postgres"
  "gorm.io/gorm"
)

func Migrate() {
  dsn := ""
  db, err := gorm.Open(postgres.Open(dsn))
  if err != nil {
    log.Fatalf("Unable to open database connection: %s", err)
  }

  db.AutoMigrate(&Application{})
  log.Println("Application created")

  db.AutoMigrate(&DeviceType{})
  log.Println("DeviceType created")

  db.AutoMigrate(&Device{})
  log.Println("Device created")

  db.AutoMigrate(&Measurement{})
  log.Println("Measurement created")

  log.Println("Remember to call create_hypertable on measurements, sowhat I can't do that for you.")

  /*
  m := Measurement { 
    Time: time.Now(), 
    Application: "app", 
    Attributes: nil,
    Values: []SensorType {
      { Variable: "Temperature", Unit: "Degree Celsius", Value: 1.0 },
      { Variable: "Temperature", Unit: "Degree Celsius", Value: 3.0 },
    },
  }
  db.Create(&m)

  m = Measurement { 
    Time: time.Now(), 
    Application: "app", 
    Attributes: nil,
    Values: []SensorType {
      { Variable: "Temperature", Unit: "Degree Celsius", Value: 10.0 },
      { Variable: "Temperature", Unit: "Degree Celsius", Value: 30.0 },
    },
  }
  db.Create(&m)
  */
}