provider "aws" {
  region = var.aws_region
}

# Terraform backends cannot contain interpolations
terraform {
  backend "s3" {
    bucket  = "orcd-terraform-state"
    key     = "qa/documents/integration-test/terraform.tfstate"
    region  = "us-east-1"
    encrypt = "true"
  }
}

data "aws_caller_identity" "current" {}

data "aws_iam_policy" "cypress_secrets_manager_policy" {
  name = "Secretsmanager-qa-cucumber-cypress-tests-secrets-manager-policy"
}

data "aws_lambda_function" "invoke_lambda_documents" {
  for_each = toset(var.lambda_functions_to_access)
  function_name = each.value
}

data "aws_iam_policy_document" "integration_test_policy_document" {
  statement {
    effect = "Allow"
    actions = [
      "lambda:InvokeFunction",
      "lambda:GetFunction",
    ]
    resources = [
      for lambda in data.aws_lambda_function.invoke_lambda_documents : lambda.arn
    ]
  }
}

resource "aws_iam_policy" "integration_test_policy" {
  name   = "${var.environment}-${var.service_name}-integration-test-policy"
  policy = data.aws_iam_policy_document.integration_test_policy_document.json
}

# Assume role policy used by Jenkins scheduler agent role
data "aws_iam_policy_document" "jenkins_assume_role_policy" {
  statement {
    actions = ["sts:AssumeRole"]

    principals {
      type = "AWS"

      identifiers = [
        "arn:aws:iam::437795906767:role/prod-jenkins-aws-pipeline-agent",
      ]
    }
  }
}

# Jenkins agents will assume this role in order to access SecretManager
resource "aws_iam_role" "jenkins_invoke_role" {
  name               = "${var.environment}-${var.service_name}-role"
  assume_role_policy = data.aws_iam_policy_document.jenkins_assume_role_policy.json
}

# Attach SecretManager access policy to Jenkins role.
resource "aws_iam_role_policy_attachment" "integration_test_policy_attachment" {
  role       = aws_iam_role.jenkins_invoke_role.id
  policy_arn = aws_iam_policy.integration_test_policy.arn
}

resource "aws_iam_role_policy_attachment" "cypress_secrets_manager_policy_attachment" {
  role       = aws_iam_role.jenkins_invoke_role.id
  policy_arn = data.aws_iam_policy.cypress_secrets_manager_policy.arn
}