Optional initial command string for launch command

lib/ring_logger.ex

@@ -57,6 +57,7 @@ defmodule RingLogger do
 
   alias RingLogger.Autoclient
   alias RingLogger.Server
+  alias RingLogger.Viewer
 
   @typedoc "Option values used by the ring logger"
   @type server_option() ::
@@ -193,11 +194,17 @@ defmodule RingLogger do
   @spec tail(non_neg_integer(), client_options()) :: :ok
   def tail(n, opts), do: Autoclient.tail(n, opts)
 
+  @doc """
+  Starts the Ring Logger Viewer TUI app on the current prompt with intial arguments
+  """
+  @spec viewer(String.t()) :: :ok
+  defdelegate viewer(cmd_string), to: Viewer, as: :view
+
   @doc """
   Starts the Ring Logger Viewer TUI app on the current prompt
   """
   @spec viewer() :: :ok
-  def viewer(), do: RingLogger.Viewer.view()
+  defdelegate viewer(), to: Viewer, as: :view
 
   @doc """
   Reset the index into the log for `next/1` to the oldest entry.

lib/ring_logger/viewer.ex

@@ -42,16 +42,15 @@ defmodule RingLogger.Viewer do
   @level_strings ["emergency", "alert", "critical", "error", "warning", "notice", "info", "debug"]
 
   @microsecond_factor 1_000_000
-
   @seconds_in_year 365 * 24 * 60 * 60
   @seconds_in_month 30 * 24 * 60 * 60
   @seconds_in_week 7 * 24 * 60 * 60
   @seconds_in_day 24 * 60 * 60
   @seconds_in_hour 60 * 60
   @seconds_in_minute 60
 
-  @spec view() :: :ok
-  def view() do
+  @spec view(String.t()) :: :ok
+  def view(cmd_string \\ "") do
     screen_dims = get_screen_dims()
 
     if screen_dims.w <= @min_width do
@@ -62,9 +61,7 @@ defmodule RingLogger.Viewer do
       raise "Sorry, your terminal needs to be at least #{@min_height} rows high to use this tool!"
     end
 
-    IO.puts("Starting RingLogger Viewer...")
-
-    @init_state |> get_log_snapshot() |> loop()
+    parse_launch_cmd(cmd_string, @init_state) |> get_log_snapshot() |> loop()
   end
 
   @doc """
@@ -88,6 +85,11 @@ defmodule RingLogger.Viewer do
   # apply_command_parser/3 returns state by applying single filter
   defp apply_command_parser(cmd_char, cmd, state) do
     case {cmd_char, cmd, state} do
+      {"l", cmd, state} -> set_log_level(cmd, state)
+      {"a", cmd, state} -> add_remove_app(cmd, state)
+      {"r", _cmd, _state} -> %{@init_state | current_page: 0}
+      {"g", cmd, state} -> add_remove_grep(cmd, state)
+      {"q", _cmd, state} -> %{state | running: false}
       {"d", cmd, state} -> add_time_log(cmd, state)
       _ -> state
     end