# Landvex Infrastruktur — AWS Terraform
# Skalar till 50GB+ agentkraft

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 5.0"
    }
  }
}

provider "aws" {
  region = var.aws_region
}

# ─── VPC och nätverk ─────────────────────────────────────
resource "aws_vpc" "landvex" {
  cidr_block           = "10.0.0.0/16"
  enable_dns_hostnames = true
  enable_dns_support   = true

  tags = {
    Name = "landvex-vpc"
  }
}

resource "aws_subnet" "public" {
  count                   = 2
  vpc_id                  = aws_vpc.landvex.id
  cidr_block              = "10.0.${count.index + 1}.0/24"
  availability_zone       = data.aws_availability_zones.available.names[count.index]
  map_public_ip_on_launch = true

  tags = {
    Name = "landvex-public-${count.index + 1}"
  }
}

resource "aws_subnet" "private" {
  count             = 2
  vpc_id            = aws_vpc.landvex.id
  cidr_block        = "10.0.${count.index + 10}.0/24"
  availability_zone = data.aws_availability_zones.available.names[count.index]

  tags = {
    Name = "landvex-private-${count.index + 1}"
  }
}

data "aws_availability_zones" "available" {
  state = "available"
}

# ─── ECR Repositories ────────────────────────────────────
resource "aws_ecr_repository" "api" {
  name                 = "landvex-api"
  image_tag_mutability = "MUTABLE"

  image_scanning_configuration {
    scan_on_push = true
  }
}

resource "aws_ecr_repository" "datafabrik" {
  name                 = "landvex-datafabrik"
  image_tag_mutability = "MUTABLE"

  image_scanning_configuration {
    scan_on_push = true
  }
}

resource "aws_ecr_repository" "vision" {
  name                 = "landvex-vision"
  image_tag_mutability = "MUTABLE"

  image_scanning_configuration {
    scan_on_push = true
  }
}

# ─── ECS Cluster ─────────────────────────────────────────
resource "aws_ecs_cluster" "landvex" {
  name = "landvex-cluster"

  setting {
    name  = "containerInsights"
    value = "enabled"
  }
}

resource "aws_ecs_cluster_capacity_providers" "landvex" {
  cluster_name = aws_ecs_cluster.landvex.name

  capacity_providers = ["FARGATE", "FARGATE_SPOT"]

  default_capacity_provider_strategy {
    base              = 1
    weight            = 1
    capacity_provider = "FARGATE"
  }
}

# ─── S3 Bucket för datalagring ───────────────────────────
resource "aws_s3_bucket" "landvex_data" {
  bucket = "landvex-data-${var.environment}"
}

resource "aws_s3_bucket_versioning" "landvex_data" {
  bucket = aws_s3_bucket.landvex_data.id
  versioning_configuration {
    status = "Enabled"
  }
}

# ─── RDS (PostgreSQL för metadata) ───────────────────────
resource "aws_db_instance" "landvex_metadata" {
  identifier           = "landvex-metadata"
  allocated_storage    = 100
  max_allocated_storage = 1000
  engine               = "postgres"
  engine_version       = "16"
  instance_class       = "db.r6g.xlarge"
  db_name              = "landvex"
  username             = "landvex"
  password             = var.db_password
  skip_final_snapshot  = true

  tags = {
    Name = "landvex-metadata"
  }
}

# ─── Variables ───────────────────────────────────────────
variable "aws_region" {
  description = "AWS region"
  default     = "eu-north-1"
}

variable "environment" {
  description = "Environment (dev/staging/prod)"
  default     = "prod"
}

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

# ─── Outputs ─────────────────────────────────────────────
output "vpc_id" {
  value = aws_vpc.landvex.id
}

output "ecr_api_url" {
  value = aws_ecr_repository.api.repository_url
}

output "s3_bucket" {
  value = aws_s3_bucket.landvex_data.bucket
}