/**
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

locals {
  ctx = {
    for k, v in var.context : k => {
      for kk, vv in v : "${local.ctx_p}${k}:${kk}" => vv
    } if k != "condition_vars"
  }
  ctx_p = "$"
  _folder_id = (
    var.id == null
    ? null
    : lookup(local.ctx.folder_ids, var.id, var.id)
  )
  folder_id = (
    var.assured_workload_config == null
    ? (
      var.folder_create
      ? coalesce(local._folder_id, try(google_folder.folder[0].id, ""))
      : local._folder_id
    )
    : format("folders/%s", try(google_assured_workloads_workload.folder[0].resources[0].resource_id, ""))
  )
  folder_number = split("/", local.folder_id)[1]
  aw_parent = (
    # Assured Workload only accepts folder as a parent and uses organization as a parent when no value provided.
    var.parent == null
    ? null
    : (
      try(startswith(var.parent, "folders/"))
      ? var.parent
      : lookup(local.ctx.folder_ids, var.parent, null)
    )
  )
}

resource "google_folder" "folder" {
  count               = var.folder_create && var.assured_workload_config == null ? 1 : 0
  display_name        = var.name
  parent              = lookup(local.ctx.folder_ids, var.parent, var.parent)
  deletion_protection = var.deletion_protection
}

resource "google_kms_autokey_config" "default" {
  provider = google-beta
  count    = var.autokey_config != null ? 1 : 0
  folder   = local.folder_id
  key_project = try(
    "projects/${local.ctx.project_ids[var.autokey_config.project]}",
    "projects/${local.ctx.project_numbers[var.autokey_config.project]}",
    var.autokey_config.project
  )
}

resource "google_essential_contacts_contact" "contact" {
  provider = google-beta
  for_each = var.contacts
  parent   = local.folder_id
  email = lookup(
    local.ctx.email_addresses, each.key, each.key
  )
  language_tag                        = "en"
  notification_category_subscriptions = each.value
  depends_on = [
    google_folder_iam_binding.authoritative,
    google_folder_iam_binding.bindings,
    google_folder_iam_member.bindings
  ]
}

resource "google_compute_firewall_policy_association" "default" {
  count             = var.firewall_policy == null ? 0 : 1
  attachment_target = local.folder_id
  name              = var.firewall_policy.name
  firewall_policy   = var.firewall_policy.policy
}

resource "google_assured_workloads_workload" "folder" {
  count                        = (var.assured_workload_config != null && var.folder_create) ? 1 : 0
  compliance_regime            = var.assured_workload_config.compliance_regime
  display_name                 = var.assured_workload_config.display_name
  location                     = var.assured_workload_config.location
  organization                 = templatestring(var.assured_workload_config.organization, var.context.condition_vars)
  enable_sovereign_controls    = var.assured_workload_config.enable_sovereign_controls
  labels                       = var.assured_workload_config.labels
  partner                      = var.assured_workload_config.partner
  provisioned_resources_parent = local.aw_parent
  dynamic "partner_permissions" {
    for_each = try(var.assured_workload_config.partner_permissions, null) == null ? [] : [""]
    content {
      assured_workloads_monitoring = var.assured_workload_config.partner_permissions.assured_workloads_monitoring
      data_logs_viewer             = var.assured_workload_config.partner_permissions.data_logs_viewer
      service_access_approver      = var.assured_workload_config.partner_permissions.service_access_approver
    }
  }
  resource_settings {
    display_name  = var.name
    resource_type = "CONSUMER_FOLDER"
  }
  violation_notifications_enabled = var.assured_workload_config.violation_notifications_enabled
}