data "aws_iam_policy_document" "lambda_throttler_policy" {
  statement {
    actions = [
      "sqs:GetQueueAttributes",
      "sqs:GetQueueUrl",
      "sqs:ListQueueTags",
      "sqs:ListQueues",
      "sqs:TagQueue",
      "sqs:UntagQueue",
      "sqs:SendMessageBatch",
      "sqs:SendMessage",
      "sqs:CreateQueue"
    ]

    resources = [
      "arn:aws:sqs:*",
    ]
  }
}

# Create throttler manager IAM policy
resource "aws_iam_policy" "lambda_throttler_policy" {
  name   = "${var.environment}-lambda-throttler-policy"
  policy = data.aws_iam_policy_document.lambda_throttler_policy.json
}

module "lambda_throttler" {
  source = "git@github.com:theorchard/terraform-lambda.git//?ref=3.1.4"

  environment                 = var.environment
  application_family          = var.application_family
  use_container_image         = true
  lambda_name                 = "${var.service_name}-throttler"
  lambda_description          = "The new delivery throttler script."
  lambda_function_memory_size = "2048"

  lambda_function_environment_variables = {
    Environment          = var.environment
    DATADOG_API_KEY      = data.aws_secretsmanager_secret_version.datadog_api.secret_string
    DATADOG_APP_KEY      = data.aws_secretsmanager_secret_version.datadog_app_key.secret_string
    SENTRY_DSN           = module.sentry_lambda_throttler.sentry_key_dsn_public_output
    DD_MYSQL_USER        = var.dd_mysql_user_throttler
    DD_MYSQL_HOST        = var.dd_mysql_host
    DD_MYSQL_PORT        = var.dd_mysql_port
    DD_MYSQL_DATABASE    = var.dd_mysql_database
    RO_DD_MYSQL_USER     = var.dd_mysql_user_throttler
    RO_DD_MYSQL_HOST     = var.dd_mysql_host
    RO_DD_MYSQL_PORT     = var.dd_mysql_port
    RO_DD_MYSQL_DATABASE = var.dd_mysql_database
  }

  lambda_function_timeout                        = "420"
  vpc_enabled                                    = true
  vpc_id                                         = var.vpc_id
  vpc_subnet_ids                                 = var.vpc_subnet_ids
  lambda_function_reserved_concurrent_executions = 250
  iam_managed_policy_attachments                 = [aws_iam_policy.lambda_throttler_policy.arn]
}