defmodule OrgGarden.Application do
  @moduledoc """
  OTP Application for org-garden.

  Starts core infrastructure services:
  - Finch HTTP client pool
  - Process registry for named lookups
  - DynamicSupervisor for runtime-started services
  - Health check HTTP server

  Service-mode components (Watcher, Quartz) are started dynamically
  via OrgGarden.Server when running in serve mode.
  """
  use Application

  @impl true
  def start(_type, _args) do
    children = [
      # HTTP client pool for Zotero/external requests
      {Finch, name: OrgGarden.Finch},

      # Process registry for named lookups
      {Registry, keys: :unique, name: OrgGarden.Registry},

      # Dynamic supervisor for serve mode components
      {DynamicSupervisor, name: OrgGarden.DynamicSupervisor, strategy: :one_for_one},

      # Health check HTTP server
      {Bandit, plug: OrgGarden.Health, port: health_port(), scheme: :http}
    ]

    opts = [strategy: :one_for_one, name: OrgGarden.AppSupervisor]
    Supervisor.start_link(children, opts)
  end

  defp health_port do
    Application.get_env(:org_garden, :health_port, 9090)
  end
end