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

  use Application

  @impl true
  def start(_type, _args) do
    GitSync.Tools.check!()

    children = [
      GitSyncWeb.Telemetry,
      GitSync.Repo,
      {Ecto.Migrator, repos: Application.fetch_env!(:git_sync, :ecto_repos)},
      Supervisor.child_spec(
        {Task, &GitSync.Sources.reconcile_webhooks/0},
        id: GitSync.WebhookReconciler
      ),
      {Phoenix.PubSub, name: GitSync.PubSub},
      GitSync.Forgejo.Provider,
      GitSync.Sync,
      # Start to serve requests, typically the last entry
      GitSyncWeb.Endpoint
    ]

    # See https://elixir.hexdocs.pm/Supervisor.html
    # for other strategies and supported options
    opts = [strategy: :one_for_one, name: GitSync.Supervisor]

    with {:ok, pid} <- Supervisor.start_link(children, opts) do
      GitSync.Forgejo.Provider.start_configured()
      resume_syncing()
      {:ok, pid}
    end
  end

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

  defp resume_syncing do
    if GitSync.Sync.runners_enabled?() do
      GitSync.Runs.abandon_running()
      GitSync.Sync.start_enabled()
    end
  end
end