variable "location" {
  description = "Azure region for all resources in this module."
  type        = string
  default     = "westeurope"
}

variable "environment" {
  description = "Deployment environment label (e.g. 'prod', 'staging')."
  type        = string
  default     = "prod"
}

variable "instance" {
  description = "Instance identifier appended to resource names."
  type        = string
  default     = "homelab"
}

variable "tags" {
  description = "Tags applied to all Azure resources in this module."
  type        = map(string)
  default = {
    project = "pangolin"
    env     = "prod"
  }
}

variable "vm_name" {
  description = "Name of the Azure Linux VM."
  type        = string
  default     = "pangolin-proxy"
}

variable "vm_size" {
  description = "Azure VM size/SKU."
  type        = string
  default     = "Standard_A2_v2"
}

variable "admin_username" {
  description = "Admin SSH username for the VM."
  type        = string
  default     = "azureuser"
}

variable "ssh_pubkey" {
  description = "SSH public key content for the admin user."
  type        = string
}

variable "vnet_cidr_ipv4" {
  description = "IPv4 address space for the virtual network."
  type        = string
  default     = "10.50.0.0/16"
}

variable "vnet_cidr_ipv6" {
  description = "IPv6 address space for the virtual network."
  type        = string
  default     = "fd7d:bb99:1da4::/48"
}

variable "subnet_cidr_ipv4" {
  description = "IPv4 CIDR for the VM subnet."
  type        = string
  default     = "10.50.1.0/24"
}

variable "subnet_cidr_ipv6" {
  description = "IPv6 CIDR for the VM subnet."
  type        = string
  default     = "fd7d:bb99:1da4:195::/64"
}

variable "allowed_ssh_cidrs_ipv4" {
  description = "IPv4 CIDRs allowed to SSH (22/tcp). Empty list means allow from anywhere."
  type        = list(string)
  default     = []
}