/**
 * Copyright 2020 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.
 */

variable "attached_disks" {
  description = "Additional disks, if options is null defaults will be used in its place."
  type = list(object({
    name  = string
    image = string
    size  = string
    options = object({
      auto_delete = bool
      mode        = string
      source      = string
      type        = string
    })
  }))
  default = []
}

variable "attached_disk_defaults" {
  description = "Defaults for attached disks options."
  type = object({
    auto_delete = bool
    mode        = string
    type        = string
    source      = string
  })
  default = {
    auto_delete = true
    source      = null
    mode        = "READ_WRITE"
    type        = "pd-ssd"
  }
}

variable "boot_disk" {
  description = "Boot disk properties."
  type = object({
    image = string
    size  = number
    type  = string
  })
  default = {
    image = "projects/debian-cloud/global/images/family/debian-10"
    type  = "pd-ssd"
    size  = 10
  }
}

variable "can_ip_forward" {
  description = "Enable IP forwarding."
  type        = bool
  default     = false
}

variable "encryption" {
  description = "Encryption options. Only one of kms_key_self_link and disk_encryption_key_raw may be set. If needed, you can specify to encrypt or not the boot disk."
  type = object({
    encrypt_boot            = bool
    disk_encryption_key_raw = string
    kms_key_self_link       = string
  })
  default = null
}

variable "group" {
  description = "Define this variable to create an instance group for instances. Disabled for template use."
  type = object({
    named_ports = map(number)
  })
  default = null
}

variable "hostname" {
  description = "Instance FQDN name."
  type        = string
  default     = null
}

variable "iam_members" {
  description = "Map of member lists used to set authoritative bindings, keyed by role. Ignored for template use."
  type        = map(list(string))
  default     = {}
}

variable "iam_roles" {
  description = "List of roles used to set authoritative bindings. Ignored for template use."
  type        = list(string)
  default     = []
}

variable "instance_count" {
  description = "Number of instances to create (only for non-template usage)."
  type        = number
  default     = 1
}

variable "instance_type" {
  description = "Instance type."
  type        = string
  default     = "f1-micro"
}

variable "labels" {
  description = "Instance labels."
  type        = map(string)
  default     = {}
}

variable "metadata" {
  description = "Instance metadata."
  type        = map(string)
  default     = {}
}

variable "metadata_list" {
  description = "List of instance metadata that will be cycled through. Ignored for template use."
  type        = list(map(string))
  default     = []
}

variable "min_cpu_platform" {
  description = "Minimum CPU platform."
  type        = string
  default     = null
}

variable "name" {
  description = "Instances base name."
  type        = string
}

variable "network_interfaces" {
  description = "Network interfaces configuration. Use self links for Shared VPC, set addresses and alias_ips to null if not needed."
  type = list(object({
    nat        = bool
    network    = string
    subnetwork = string
    addresses = object({
      internal = list(string)
      external = list(string)
    })
    alias_ips = list(object({
      ip_cidr_range         = string
      subnetwork_range_name = string
    }))
  }))
}

variable "options" {
  description = "Instance options."
  type = object({
    allow_stopping_for_update = bool
    deletion_protection       = bool
    preemptible               = bool
  })
  default = {
    allow_stopping_for_update = true
    deletion_protection       = false
    preemptible               = false
  }
}

variable "project_id" {
  description = "Project id."
  type        = string
}

variable "region" {
  description = "Compute region."
  type        = string
}

variable "scratch_disks" {
  description = "Scratch disks configuration."
  type = object({
    count     = number
    interface = string
  })
  default = {
    count     = 0
    interface = "NVME"
  }
}

variable "service_account" {
  description = "Service account email. Unused if service account is auto-created."
  type        = string
  default     = null
}

variable "service_account_create" {
  description = "Auto-create service account."
  type        = bool
  default     = false
}

# scopes and scope aliases list
# https://cloud.google.com/sdk/gcloud/reference/compute/instances/create#--scopes
variable "service_account_scopes" {
  description = "Scopes applied to service account."
  type        = list(string)
  default     = []
}

variable "tags" {
  description = "Instance tags."
  type        = list(string)
  default     = []
}

variable "use_instance_template" {
  description = "Create instance template instead of instances."
  type        = bool
  default     = false
}

variable "zones" {
  description = "Compute zone, instance will cycle through the list, defaults to the 'b' zone in the region."
  type        = list(string)
  default     = []
}

variable "shielded_config" {
  description = "Shielded VM configuration of the instances."
  type = object({
    enable_secure_boot          = bool
    enable_vtpm                 = bool
    enable_integrity_monitoring = bool
  })
  default = null
}