main.tf

data "azurerm_location" "region" {
  location = var.location
}

resource "azurerm_service_plan" "this" {
  location                        = var.location
  name                            = var.name
  os_type                         = var.os_type
  resource_group_name             = var.resource_group_name
  sku_name                        = var.sku_name
  app_service_environment_id      = var.app_service_environment_id
  maximum_elastic_worker_count    = local.maximum_elastic_worker_count
  per_site_scaling_enabled        = var.per_site_scaling_enabled
  premium_plan_auto_scale_enabled = startswith(var.sku_name, "P") ? var.premium_plan_auto_scale_enabled : false
  tags                            = var.tags
  worker_count                    = var.zone_balancing_enabled ? ceil(var.worker_count / length(data.azurerm_location.region.zone_mappings)) * length(data.azurerm_location.region.zone_mappings) : var.worker_count
  zone_balancing_enabled          = var.zone_balancing_enabled
}

# required AVM resources interfaces
resource "azurerm_management_lock" "this" {
  count = var.lock != null ? 1 : 0

  lock_level = var.lock.kind
  name       = coalesce(var.lock.name, "lock-${var.lock.kind}")
  scope      = azurerm_service_plan.this.id
  notes      = var.lock.kind == "CanNotDelete" ? "Cannot delete the resource or its child resources." : "Cannot delete or modify the resource or its child resources."
}


resource "azurerm_role_assignment" "this" {
  for_each = var.role_assignments

  principal_id                           = each.value.principal_id
  scope                                  = azurerm_service_plan.this.id
  condition                              = each.value.condition
  condition_version                      = each.value.condition_version
  delegated_managed_identity_resource_id = each.value.delegated_managed_identity_resource_id
  role_definition_id                     = strcontains(lower(each.value.role_definition_id_or_name), lower(local.role_definition_resource_substring)) ? each.value.role_definition_id_or_name : null
  role_definition_name                   = strcontains(lower(each.value.role_definition_id_or_name), lower(local.role_definition_resource_substring)) ? null : each.value.role_definition_id_or_name
  skip_service_principal_aad_check       = each.value.skip_service_principal_aad_check
}