package logins

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

type Users struct {
	Username string `gorm:"primaryKey"`
	Email    string `gorm:"unique:users_email_key"`
	Password string `gorm:""`
}

func DropUnusedColumns(DB *gorm.DB, values ...interface{}) {

	for _, dst := range values {
		stmt := &gorm.Statement{DB: DB}
		stmt.Parse(dst)
		fields := stmt.Schema.Fields
		columns, _ := DB.Debug().Migrator().ColumnTypes(dst)

		for i := range columns {
			found := false
			for j := range fields {
				if columns[i].Name() == fields[j].DBName {
					found = true
					break
				}
			}
			if !found {
				DB.Migrator().DropColumn(dst, columns[i].Name())
			}
		}
	}
}

func Init_database() {
	dsn := "postgres://acc:totor@postgres:5432/accounts?sslmode=disable"
	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
	if err != nil {
	}
	db.AutoMigrate(&Users{})
	DropUnusedColumns(db, &Users{})
}