# Phase 2: Outputs
# File: infrastructure/services/outputs.tf

# Application Load Balancer Information
output "alb_arn" {
  description = "ARN of the Application Load Balancer"
  value       = aws_lb.main.arn
}

output "alb_dns_name" {
  description = "DNS name of the Application Load Balancer"
  value       = aws_lb.main.dns_name
}

output "alb_zone_id" {
  description = "Zone ID of the Application Load Balancer"
  value       = aws_lb.main.zone_id
}

output "application_url" {
  description = "URL to access the application"
  value       = "http://${aws_lb.main.dns_name}"
}

output "health_check_url" {
  description = "URL for health check endpoint"
  value       = "http://${aws_lb.main.dns_name}/health"
}

# ECS Information
output "ecs_cluster_name" {
  description = "Name of the ECS cluster"
  value       = aws_ecs_cluster.main.name
}

output "ecs_cluster_arn" {
  description = "ARN of the ECS cluster"
  value       = aws_ecs_cluster.main.arn
}

output "ecs_service_name" {
  description = "Name of the ECS service"
  value       = aws_ecs_service.app.name
}

output "ecs_service_arn" {
  description = "ARN of the ECS service"
  value       = aws_ecs_service.app.id
}

output "ecs_task_definition_arn" {
  description = "ARN of the ECS task definition"
  value       = aws_ecs_task_definition.app.arn
}

output "ecs_task_definition_family" {
  description = "Family of the ECS task definition"
  value       = aws_ecs_task_definition.app.family
}

output "ecs_task_definition_revision" {
  description = "Revision of the ECS task definition"
  value       = aws_ecs_task_definition.app.revision
}

# ECR Information
output "ecr_repository_url" {
  description = "URL of the ECR repository"
  value       = aws_ecr_repository.app.repository_url
}

output "ecr_repository_name" {
  description = "Name of the ECR repository"
  value       = aws_ecr_repository.app.name
}

output "ecr_repository_arn" {
  description = "ARN of the ECR repository"
  value       = aws_ecr_repository.app.arn
}

# Target Groups for Blue/Green Deployment
output "blue_target_group_arn" {
  description = "ARN of the Blue target group"
  value       = aws_lb_target_group.blue.arn
}

output "green_target_group_arn" {
  description = "ARN of the Green target group"
  value       = aws_lb_target_group.green.arn
}

output "blue_target_group_name" {
  description = "Name of the Blue target group"
  value       = aws_lb_target_group.blue.name
}

output "green_target_group_name" {
  description = "Name of the Green target group"
  value       = aws_lb_target_group.green.name
}

# IAM Role Information
output "ecs_task_execution_role_arn" {
  description = "ARN of the ECS task execution role"
  value       = aws_iam_role.ecs_task_execution.arn
}

output "ecs_task_role_arn" {
  description = "ARN of the ECS task role"
  value       = aws_iam_role.ecs_task.arn
}

# CloudWatch Information
output "cloudwatch_log_group_name" {
  description = "Name of the CloudWatch log group"
  value       = aws_cloudwatch_log_group.app.name
}

output "cloudwatch_log_group_arn" {
  description = "ARN of the CloudWatch log group"
  value       = aws_cloudwatch_log_group.app.arn
}

# Monitoring Information
output "cpu_alarm_name" {
  description = "Name of the CPU utilization alarm"
  value       = aws_cloudwatch_metric_alarm.high_cpu.alarm_name
}

output "memory_alarm_name" {
  description = "Name of the memory utilization alarm"
  value       = aws_cloudwatch_metric_alarm.high_memory.alarm_name
}

# Docker Build Information (for CI/CD)
output "docker_build_commands" {
  description = "Commands to build and push Docker image"
  value = {
    login = "aws ecr get-login-password --region ${var.aws_region} | docker login --username AWS --password-stdin ${aws_ecr_repository.app.repository_url}"
    build = "docker build -t ${aws_ecr_repository.app.name} ."
    tag   = "docker tag ${aws_ecr_repository.app.name}:latest ${aws_ecr_repository.app.repository_url}:latest"
    push  = "docker push ${aws_ecr_repository.app.repository_url}:latest"
  }
}

# ECS Deployment Commands (for CI/CD)
output "ecs_deployment_commands" {
  description = "Commands for ECS deployment"
  value = {
    update_service = "aws ecs update-service --cluster ${aws_ecs_cluster.main.name} --service ${aws_ecs_service.app.name} --force-new-deployment"
    wait_stable    = "aws ecs wait services-stable --cluster ${aws_ecs_cluster.main.name} --services ${aws_ecs_service.app.name}"
    describe       = "aws ecs describe-services --cluster ${aws_ecs_cluster.main.name} --services ${aws_ecs_service.app.name}"
  }
}

# Blue/Green Deployment Commands
output "blue_green_commands" {
  description = "Commands for Blue/Green deployment"
  value = {
    switch_to_green = "aws elbv2 modify-listener --listener-arn ${aws_lb_listener.main.arn} --default-actions Type=forward,TargetGroupArn=${aws_lb_target_group.green.arn}"
    switch_to_blue  = "aws elbv2 modify-listener --listener-arn ${aws_lb_listener.main.arn} --default-actions Type=forward,TargetGroupArn=${aws_lb_target_group.blue.arn}"
    check_health_green    = "aws elbv2 describe-target-health --target-group-arn ${aws_lb_target_group.green.arn}"
    check_health_blue  = "aws elbv2 describe-target-health --target-group-arn ${aws_lb_target_group.blue.arn}"
  }
}

# Project Information
output "project_name" {
  description = "Name of the project"
  value       = var.project_name
}

output "environment" {
  description = "Environment name"
  value       = var.environment
}

output "aws_region" {
  description = "AWS region"
  value       = var.aws_region
}

# Cost Optimization Information
output "cost_estimate" {
  description = "Estimated monthly cost breakdown"
  value = {
    ecs_fargate    = "$0-15/month (depends on usage)"
    alb            = "$18/month (fixed cost)"
    ecr            = "$0-1/month (500MB free)"
    cloudwatch     = "$0-3/month (free tier)"
    total_estimate = "$18-37/month"
    note           = "Actual costs depend on traffic and usage patterns"
  }
}