class ServersController < ApplicationController
  before_action :set_server, only: [ :show, :destroy, :start, :stop, :restart ]

  def index
    @servers = current_user.servers.includes(:server_template).order(created_at: :desc)
  end

  def show
    authorize_user!
  end

  def new
    @server_template = current_user.server_templates.find(params[:server_template_id])
    @server = current_user.servers.build(server_template: @server_template)
  end

  def create
    @server_template = current_user.server_templates.find(params[:server_template_id])
    @server = current_user.servers.build(server_params)
    @server.server_template = @server_template
    @server.status = :stopped

    if @server.save
      Activity.log(current_user, "spawned", "Server", @server.id, { name: @server.name, port: @server.port })
      SpawnServerJob.perform_later(@server.id)
      redirect_to @server, notice: "Server spawning..."
    else
      render :new, status: :unprocessable_entity
    end
  end

  def start
    authorize_user!
    L4dServer::SystemdManager.start(@server)
    @server.update(status: :starting)
    Activity.log(current_user, "started", "Server", @server.id, {})
    redirect_to @server, notice: "Server starting..."
  end

  def stop
    authorize_user!
    L4dServer::SystemdManager.stop(@server)
    @server.update(status: :stopped)
    Activity.log(current_user, "stopped", "Server", @server.id, {})
    redirect_to @server, notice: "Server stopped."
  end

  def restart
    authorize_user!
    L4dServer::SystemdManager.restart(@server)
    @server.update(status: :starting)
    Activity.log(current_user, "restarted", "Server", @server.id, {})
    redirect_to @server, notice: "Server restarting..."
  end

  def destroy
    authorize_user!
    name = @server.name
    @server.destroy
    Activity.log(current_user, "deleted", "Server", @server.id, { name: name })
    redirect_to servers_path, notice: "Server deleted."
  end

  private

  def set_server
    @server = Server.find(params[:id])
  end

  def server_params
    params.require(:server).permit(:name, :port)
  end

  def authorize_user!
    redirect_to servers_path, alert: "Not authorized" unless @server.user_id == current_user.id
  end
end