variable "identifier"    {}
variable "engine"        { default = "postgres" }
variable "engine_version" { default = "16.1" }
variable "instance_class" { default = "db.t4g.medium" }
variable "db_name"       {}
variable "username"      {}
variable "subnet_ids"    { type = list(string) }
variable "multi_az"      { default = true }

resource "aws_db_instance" "main" {
  identifier           = var.identifier
  engine               = var.engine
  engine_version       = var.engine_version
  instance_class       = var.instance_class
  db_name              = var.db_name
  username             = var.username
  multi_az             = var.multi_az
  skip_final_snapshot  = false
  deletion_protection  = true
  storage_encrypted    = true

  db_subnet_group_name = aws_db_subnet_group.main.name
}

resource "aws_db_subnet_group" "main" {
  name       = "${var.identifier}-subnet-group"
  subnet_ids = var.subnet_ids
}