data "aws_vpc" "vpc_name" {
  filter {
    name   = "tag:Name"
    values = ["${var.vpc_level}-VPC"]
  }
}

data "aws_subnet_ids" "selected" {
  vpc_id = "${data.aws_vpc.vpc_name.id}"

  tags {
    Name = "*-${var.subnet_type}-*"
  }
}

resource "random_shuffle" "subnet" {
  input        = ["${data.aws_subnet_ids.selected.ids}"]
  result_count = 1
}

resource "aws_instance" "instance" {
  ami                         = "${var.ami}"
  instance_type               = "${var.instance_type}"
  vpc_security_group_ids      = ["${var.security_group_id}"]
  key_name                    = "${var.key_name}"
  associate_public_ip_address = "${var.assoc_public_ip}"
  subnet_id                   = "${var.user_specified_subnet_id != "BadValue" ? var.user_specified_subnet_id : random_shuffle.subnet.result[0]}"
  user_data                   = "${file("${var.user_data_script}")}"
  iam_instance_profile        = "${var.instance_role}"

  tags {
    "Name"                     = "${var.Name}"
    "info:TaggingVersion"      = "${var.infoTaggingVersion}"
    "its:Provisioner"          = "${var.itsProvisioner}"
    "its:DataClassification"   = "${var.itsDataClassification}"
    "its:ServiceOwner"         = "${var.itsServiceOwner}"
    "its:SecurityReviewDate"   = "${var.itsSecurityReviewDate}"
    "its:SecurityReviewTicket" = "${var.itsSecurityReviewTicket}"
    "CA001"                    = "${var.CA001}"
    "CostCenter"               = "${var.CostCenter}"
    "Creator"                  = "${var.Creator}"
    "Department"               = "${var.Department}"
    "Environment"              = "${var.Environment}"
    "Owner"                    = "${var.Owner}"
    "Project"                  = "${var.Project}"
    "Purpose"                  = "${var.Purpose}"
    "Service"                  = "${var.Service}"

    ### Optional tags
    "Application"          = "${var.Application}"
    "Company"              = "${var.Company}"
    "its:BackupSchedule"   = "${var.itsBackupSchedule}"
    "its:BuildID"          = "${var.itsBuildID}"
    "its:CmdbMapping"      = "${var.itsCmdbMapping}"
    "CA002"                = "${var.CA002}"
    "CA003"                = "${var.CA003}"
    "its:OperationalHours" = "${var.itsOperationalHours}"
    "Role"                 = "${var.Role}"
    "Status"               = "${var.Status}"
    "Use"                  = "${var.Use}"
  }
}