# ---------------------------------------------------------------------------
# Hosting for the Presidio detector only. Fusion is a shared SaaS instance and is
# NOT deployed here. Because Fusion SaaS calls the detector over the internet, the
# analyzer port is public in this demo (lock it down / add auth for anything real;
# better: fold detection behind the /tokenize endpoint so only that is public --
# see CLAUDE.md task T3).
#
# For a laptop-only rehearsal you can skip this file and run Presidio via docker.
# ---------------------------------------------------------------------------

data "aws_vpc" "default" { default = true }

data "aws_subnets" "default" {
  filter {
    name   = "vpc-id"
    values = [data.aws_vpc.default.id]
  }
}

resource "aws_ecs_cluster" "this" {
  name = "${local.name}-cluster"
  tags = local.onprem_tag
}

resource "aws_security_group" "svc" {
  name        = "${local.name}-svc-sg"
  description = "Demo services SG"
  vpc_id      = data.aws_vpc.default.id
  ingress {
    description = "Presidio analyzer (public for SaaS Fusion demo - restrict for real use)"
    from_port   = 5001
    to_port     = 5001
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }
  egress {
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }
  tags = local.onprem_tag
}

resource "aws_iam_role" "ecs_exec" {
  name = "${local.name}-ecs-exec"
  assume_role_policy = jsonencode({
    Version = "2012-10-17"
    Statement = [{
      Effect    = "Allow"
      Principal = { Service = "ecs-tasks.amazonaws.com" }
      Action    = "sts:AssumeRole"
    }]
  })
}

resource "aws_iam_role_policy_attachment" "ecs_exec" {
  role       = aws_iam_role.ecs_exec.name
  policy_arn = "arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy"
}

resource "aws_ecs_task_definition" "presidio" {
  family                   = "${local.name}-presidio"
  requires_compatibilities = ["FARGATE"]
  network_mode             = "awsvpc"
  cpu                      = 512
  memory                   = 1024
  execution_role_arn       = aws_iam_role.ecs_exec.arn
  container_definitions = jsonencode([{
    name         = "presidio"
    image        = var.presidio_image_uri
    essential    = true
    portMappings = [{ containerPort = 5001 }]
  }])
  tags = local.onprem_tag
}

resource "aws_ecs_service" "presidio" {
  name            = "${local.name}-presidio"
  cluster         = aws_ecs_cluster.this.id
  task_definition = aws_ecs_task_definition.presidio.arn
  desired_count   = 1
  launch_type     = "FARGATE"
  network_configuration {
    subnets          = data.aws_subnets.default.ids
    security_groups  = [aws_security_group.svc.id]
    assign_public_ip = true
  }
  tags = local.onprem_tag
}