# State machine lambda invocation policy
data "aws_iam_policy_document" "invoke_lambda_policy_data_platform_grps_ingester" {
  statement {
    actions = [
      "lambda:InvokeFunction",
    ]

    resources = [
      data.aws_lambda_function.lambda_get_grps_data.arn,
      data.aws_lambda_function.lambda_create_project.arn,
      data.aws_lambda_function.lambda_create_tracks.arn,
      data.aws_lambda_function.lambda_create_product.arn,
      data.aws_lambda_function.lambda_proces_participants.arn,
      data.aws_lambda_function.lambda_set_track_metadata.arn,
      data.aws_lambda_function.lambda_set_ingestion_state.arn,
      data.aws_lambda_function.lambda_detect_errors.arn,
      data.aws_lambda_function.lambda_set_product_to_complete.arn,
      data.aws_lambda_function.lambda_create_ingestion_lock.arn,
      data.aws_lambda_function.lambda_remove_ingestion_lock.arn,
      data.aws_lambda_function.lambda_replace_with_placeholder_upc.arn,
      data.aws_lambda_function.lambda_find_or_create_account.arn,
    ]

  }
}

# Step Function (SFN) definition for SME analytics - Definition only using template file and variable substitution
data "template_file" "sfn_grps_ingester_definition" {
  template = file("${path.module}/${var.sfn_data_platform_grps_ingester_definition_file}")
  vars = {
    account_id                              = data.aws_caller_identity.current.account_id,
    region                                  = var.region
    environment                             = var.environment
    lambda_get_grps_data_arn                = data.aws_lambda_function.lambda_get_grps_data.arn
    lambda_create_project_arn               = data.aws_lambda_function.lambda_create_project.arn
    lambda_create_tracks_arn                = data.aws_lambda_function.lambda_create_tracks.arn
    lambda_create_product_arn               = data.aws_lambda_function.lambda_create_product.arn
    lambda_proces_participants_arn          = data.aws_lambda_function.lambda_proces_participants.arn
    lambda_set_track_metadata_arn           = data.aws_lambda_function.lambda_set_track_metadata.arn
    lambda_set_ingestion_state_arn          = data.aws_lambda_function.lambda_set_ingestion_state.arn
    lambda_detect_errors_arn                = data.aws_lambda_function.lambda_detect_errors.arn
    lambda_set_product_to_complete_arn      = data.aws_lambda_function.lambda_set_product_to_complete.arn
    lambda_create_ingestion_lock_arn        = data.aws_lambda_function.lambda_create_ingestion_lock.arn
    lambda_remove_ingestion_lock_arn        = data.aws_lambda_function.lambda_remove_ingestion_lock.arn
    lambda_replace_with_placeholder_upc_arn = data.aws_lambda_function.lambda_replace_with_placeholder_upc.arn
    lambda_find_or_create_account_arn       = data.aws_lambda_function.lambda_find_or_create_account.arn,
  }
}


# Step Function (SFN) root role - Role creation using policy definition
resource "aws_iam_role" "sfn_grps_ingester_ingester_role" {
  name               = "${var.environment}-grps-ingester-sfn-role"
  description        = "Governing role for ${var.environment}-grps-ingester-sfn execution and resource access."
  assume_role_policy = data.aws_iam_policy_document.sfn_assume_statemachines_role.json
}

# Policy that gives the state machine role permission to invoke lambdas
resource "aws_iam_role_policy" "sfn_grps_ingester_invoke_lambda_role_policy" {
  name   = "${var.environment}-grps-ingester-lambda-role-policy"
  role   = aws_iam_role.sfn_grps_ingester_ingester_role.id
  policy = data.aws_iam_policy_document.invoke_lambda_policy_data_platform_grps_ingester.json
}

# Policy xray
resource "aws_iam_role_policy" "sfn_grps_ingester_xray_policy_document" {
  name   = "${var.environment}-grps-ingester-xray-role-policy"
  role   = aws_iam_role.sfn_grps_ingester_ingester_role.id
  policy = data.aws_iam_policy_document.sfn_grps_ingester_xray_policy_document.json
}

# Step Function (SFN) - SFN LogEvent - Policy creation using policy definition document
resource "aws_iam_policy" "sfn_grps_ingester_log_event_policy" {
  name        = "${var.environment}-grps-ingester-sfn-logevent-policy"
  description = "Shared SFN LogEvent Policy for grps-ingester sfn services."
  policy      = data.aws_iam_policy_document.grps_ingester_log_event_policy_document.json
}

# Attach Step Function (SFN) LogEvent Policy to various root roles sme-analytics-ddex-ingester
resource "aws_iam_role_policy_attachment" "sfn_grps_ingester_log_event_policy_attachment" {
  role       = aws_iam_role.sfn_grps_ingester_ingester_role.name
  policy_arn = aws_iam_policy.sfn_grps_ingester_log_event_policy.arn
}

# Step Function (SFN) definition for SME analytics
resource "aws_sfn_state_machine" "sfn_grps_ingester_ingester" {
  name       = "${var.environment}-grps-ingester-sfn"
  role_arn   = aws_iam_role.sfn_grps_ingester_ingester_role.arn
  definition = data.template_file.sfn_grps_ingester_definition.rendered

  tags = {
    application_family = var.application_family
    environment        = var.environment
    service_name       = "grps-ingester-sfn"
    terraformed        = true
  }

  tracing_configuration {
    enabled = true
  }
}