# Terraform Variables Configuration
# See README.md for usage examples

variable "aws_region" {
  description = "AWS region"
  type        = string
  default     = "us-east-1"
}

variable "environment" {
  description = "Environment (dev/staging/production)"
  type        = string
  validation {
    condition     = contains(["dev", "staging", "production"], var.environment)
    error_message = "Must be dev, staging, or production"
  }
}

variable "project_name" {
  description = "Project name for resource naming"
  type        = string
}

variable "vpc_cidr" {
  description = "VPC CIDR block"
  type        = string
  default     = "10.0.0.0/16"
}

variable "enable_nat_gateway" {
  description = "Enable NAT Gateway"
  type        = bool
  default     = true
}

variable "instance_type" {
  description = "EC2 instance type"
  type        = string
  default     = "t3.medium"
}

variable "asg_min_size" {
  description = "ASG minimum size"
  type        = number
  default     = 2
}

variable "asg_max_size" {
  description = "ASG maximum size"
  type        = number
  default     = 10
}

variable "db_username" {
  description = "Database username"
  type        = string
  sensitive   = true
}

variable "db_password" {
  description = "Database password"
  type        = string
  sensitive   = true
}

variable "db_instance_class" {
  description = "RDS instance class"
  type        = string
  default     = "db.t3.medium"
}

variable "alert_email_addresses" {
  description = "Email addresses for alerts"
  type        = list(string)
  default     = []
}

# See full variables list in documentation
# For complete configuration examples see environments/