# Phase 2: Variables
# File: infrastructure/services/variables.tf

variable "project_name" {
  description = "Name of the project"
  type        = string
  default     = "nvhi-atsila-microservice"
}

variable "environment" {
  description = "Environment name (e.g., dev, staging, prod)"
  type        = string
  default     = "dev"
}

variable "aws_region" {
  description = "AWS region"
  type        = string
  default     = "us-east-2"
}

variable "common_tags" {
  description = "Common tags to be applied to all resources"
  type        = map(string)
  default = {
    Terraform   = "true"
    Project     = "nvhi-atsila-microservice"
    Environment = "dev"
    ManagedBy   = "jenkins"
    Pipeline    = "services-layer"
  }
}

# ECS Configuration
variable "task_cpu" {
  description = "CPU units for the ECS task (256, 512, 1024, 2048, 4096)"
  type        = string
  default     = "256" # Free tier friendly
}

variable "task_memory" {
  description = "Memory for the ECS task (512, 1024, 2048, 4096, 8192)"
  type        = string
  default     = "512" # Free tier friendly
}

variable "desired_count" {
  description = "Desired number of ECS tasks"
  type        = number
  default     = 1 # Start with 1 for cost efficiency
}

variable "image_tag" {
  description = "Docker image tag to deploy"
  type        = string
  default     = "latest"
}

# Auto Scaling Configuration
variable "enable_auto_scaling" {
  description = "Enable auto scaling for the ECS service"
  type        = bool
  default     = false # Disable for free tier
}

variable "min_capacity" {
  description = "Minimum number of tasks"
  type        = number
  default     = 1
}

variable "max_capacity" {
  description = "Maximum number of tasks"
  type        = number
  default     = 3
}

# Health Check Configuration
variable "health_check_path" {
  description = "Health check path for the application"
  type        = string
  default     = "/health"
}

variable "health_check_interval" {
  description = "Health check interval in seconds"
  type        = number
  default     = 30
}

variable "health_check_timeout" {
  description = "Health check timeout in seconds"
  type        = number
  default     = 5
}

variable "health_check_healthy_threshold" {
  description = "Number of consecutive successful health checks"
  type        = number
  default     = 2
}

variable "health_check_unhealthy_threshold" {
  description = "Number of consecutive failed health checks"
  type        = number
  default     = 3
}

# Load Balancer Configuration
variable "enable_https" {
  description = "Enable HTTPS listener on ALB"
  type        = bool
  default     = false # Keep simple for demo
}

variable "ssl_certificate_arn" {
  description = "ARN of SSL certificate for HTTPS"
  type        = string
  default     = null
}

# Blue/Green Deployment Configuration
variable "deployment_type" {
  description = "Deployment type: blue_green or rolling"
  type        = string
  default     = "blue_green"
  
  validation {
    condition     = contains(["blue_green", "rolling"], var.deployment_type)
    error_message = "Deployment type must be either 'blue_green' or 'rolling'."
  }
}

variable "deployment_maximum_percent" {
  description = "Maximum percentage of tasks during deployment"
  type        = number
  default     = 200
}

variable "deployment_minimum_healthy_percent" {
  description = "Minimum percentage of healthy tasks during deployment"
  type        = number
  default     = 50
}

# CloudWatch Configuration
variable "log_retention_days" {
  description = "CloudWatch log retention in days"
  type        = number
  default     = 7 # Free tier friendly
}

variable "enable_container_insights" {
  description = "Enable CloudWatch Container Insights"
  type        = bool
  default     = true
}

# Security Configuration
variable "enable_execute_command" {
  description = "Enable ECS Exec for debugging"
  type        = bool
  default     = true
}

variable "enable_service_connect" {
  description = "Enable ECS Service Connect"
  type        = bool
  default     = false # Keep simple for demo
}