defmodule SimpleshopTheme.Application do
  # See https://hexdocs.pm/elixir/Application.html
  # for more information on OTP Applications
  @moduledoc false

  use Application

  @impl true
  def start(_type, _args) do
    children = [
      SimpleshopThemeWeb.Telemetry,
      SimpleshopTheme.Repo,
      {Ecto.Migrator,
       repos: Application.fetch_env!(:simpleshop_theme, :ecto_repos), skip: skip_migrations?()},
      # Seed default theme settings if none exist (first boot)
      Supervisor.child_spec({Task, &SimpleshopTheme.Release.seed_defaults/0}, id: :seed_defaults),
      # Load encrypted secrets from DB into Application env
      {Task, &SimpleshopTheme.Secrets.load_all/0},
      {DNSCluster, query: Application.get_env(:simpleshop_theme, :dns_cluster_query) || :ignore},
      {Phoenix.PubSub, name: SimpleshopTheme.PubSub},
      # Background job processing
      {Oban, Application.fetch_env!(:simpleshop_theme, Oban)},
      # Image variant cache - ensures all variants exist on startup
      SimpleshopTheme.Images.VariantCache,
      # Start to serve requests
      SimpleshopThemeWeb.Endpoint,
      # Theme CSS cache - must start after Endpoint for static_path/1 to work
      SimpleshopTheme.Theme.CSSCache
    ]

    # See https://hexdocs.pm/elixir/Supervisor.html
    # for other strategies and supported options
    opts = [strategy: :one_for_one, name: SimpleshopTheme.Supervisor]
    Supervisor.start_link(children, opts)
  end

  # Tell Phoenix to update the endpoint configuration
  # whenever the application is updated.
  @impl true
  def config_change(changed, _new, removed) do
    SimpleshopThemeWeb.Endpoint.config_change(changed, removed)
    :ok
  end

  defp skip_migrations?() do
    # By default, sqlite migrations are run when using a release
    System.get_env("RELEASE_NAME") == nil
  end
end
