provider "aws" {
  region = var.aws_region
}

data "aws_caller_identity" "current" {}

terraform {
  backend "s3" {
    bucket  = "orcd-terraform-state"
    key     = "qa/lambda-looker-gfk/terraform.tfstate"
    region  = "us-east-1"
    encrypt = "true"
  }
}

module "vpc_info" {
  source      = "git@github.com:theorchard/terraform-vpc-info.git//?ref=3.2.2"
  environment = var.environment
}

module "secrets" {
  source   = "git@github.com:theorchard/terraform-secrets-manager.git//?ref=1.5.2"
  for_each = toset(var.secrets_manager_secret_names)

  environment        = var.environment
  service_name       = var.service_name
  secret_name        = each.value
  application_family = var.application_family
}

module "lambda_looker_sentry" {
  source = "git@github.com:theorchard/terraform-sentry.git?ref=5.0.0"

  environment        = var.environment
  platform           = "python"
  service_name       = var.service_name
  application_family = var.application_family
}

module "lambda_looker_datadog" {
  source = "git@github.com:theorchard/terraform-datadog.git//modules/lambda?ref=6.18.2"

  environment                       = var.environment
  service_name                      = var.service_name
  lambda_invocation_monitor_enabled = false
}

module "lambda_looker_gfk" {
  source = "git@github.com:theorchard/terraform-lambda.git?ref=5.3.0"

  environment        = var.environment
  application_family = var.application_family
  lambda_name        = var.service_name

  use_container_image = true
  lambda_description  = "Send an export from Looker file from S3 to GfK FTP server."
  dlq_enabled         = var.dlq_enabled
  vpc_enabled         = true
  vpc_id              = module.vpc_info.vpc_id
  vpc_subnet_ids      = module.vpc_info.default_private_subnet_ids

  datadog_enabled          = true
  datadog_advanced_enabled = var.datadog_advanced_enabled

  lambda_function_environment_variables = {
    Environment  = var.environment
    GFK_FTP_PORT = var.gfk_ftp_port
    GFK_FTP_HOST = var.gfk_ftp_host
    GFK_FTP_PATH = var.gfk_ftp_path
    SENTRY_DSN   = module.lambda_looker_sentry.sentry_key_dsn_public_output
  }

  s3_event_enabled       = var.s3_event_enabled
  s3_event_bucket_name   = var.s3_event_bucket_name
  s3_event_filter_prefix = var.s3_event_filter_prefix

  iam_managed_policy_attachments = [
    aws_iam_policy.lambda_looker_gfk_secrets_manager_policy.arn
  ]

}


data "aws_iam_policy_document" "lambda_looker_gfk_secrets_manager_policy" {
  statement {
    actions = [
      "secretsmanager:GetResourcePolicy",
      "secretsmanager:GetSecretValue",
      "secretsmanager:DescribeSecret",
      "secretsmanager:ListSecretVersionIds"
    ]

    resources = [
      "arn:aws:secretsmanager:*:*:secret:${var.environment}/lambda-looker-gfk/",
      "arn:aws:secretsmanager:*:*:secret:${var.environment}/lambda-looker-gfk/*",
    ]
  }

  statement {
    actions = [
      "sns:Publish"
    ]

    effect = "Allow"
    resources = [
      "arn:aws:sns:${var.aws_region}:${data.aws_caller_identity.current.account_id}:${var.environment}-swf-feed-ingestion"
    ]
  }
}

# Create secrets manager policy for lambda-looker-gfk
resource "aws_iam_policy" "lambda_looker_gfk_secrets_manager_policy" {
  name   = "Secretsmanager-${var.environment}-${var.service_name}-secrets-manager-policy"
  policy = data.aws_iam_policy_document.lambda_looker_gfk_secrets_manager_policy.json
}