# Provider determines the method (AWS) and some basic provider properties
provider "aws" {
  region = var.region
}

# Caller Identity
data "aws_caller_identity" "current" {}

# Terraform backends cannot contain interpolations - of the form ${var.environment}-${var.service_name}-state
terraform {
  backend "s3" {
    bucket  = "dev-orcd-terraform-state"
    key     = "dev/ddex-ingester/terraform.tfstate"
    region  = "us-east-1"
    encrypt = true
  }
}

# State Machines

# Step Function (SFN) root policy document - Definition only
data "aws_iam_policy_document" "sfn_assume_statemachines_role" {
  statement {
    actions = ["sts:AssumeRole"]

    principals {
      type = "Service"
      identifiers = [
        "states.amazonaws.com",
        "lambda.amazonaws.com",
        "events.amazonaws.com",
        "s3.amazonaws.com"
      ]
    }
  }
}

# Step Function (SFN) - SFN Cloudwatch logs permission policy - Definition only
data "aws_iam_policy_document" "ddex_ingester_log_event_policy_document" {
  statement {
    effect = "Allow"
    resources = ["*"]

    actions = [
      "logs:CreateLogGroup",
      "logs:CreateLogStream",
      "logs:PutLogEvents"
    ]
  }
}

data "aws_iam_policy_document" "sfn_assume_role_for_events_policy" {
  statement {
    sid = "AllowCWEServiceToAssumeRole"

    actions = [
      "sts:AssumeRole",
    ]

    principals {
      type = "Service"

      identifiers = [
        "lambda.amazonaws.com"
      ]
    }
  }
}