Tidy main loop and enable screen switching

Signed-off-by: Ricardo Lanziano <[email protected]>

src/c3card.erl

@@ -26,32 +26,54 @@ start() ->
     {ok, _} = c3card_app:start(normal, []),
 
     ?LOG_NOTICE("entering loop..."),
-    ok = c3card_screen:draw_text("card started"),
-    loop(#{}).
+    loop(#{sleep_ms => 50, screen => c3card_screen:default_screen()}).
 
 %% Internal functions
 
+%% @hidden
 loop(State) ->
-    _ = timer:sleep(500),
+    #{sleep_ms := SleepMs, screen := CurrentScreen} = State,
+    _ = timer:sleep(SleepMs),
     {ok, Readings} = c3card_sensor:read_sensors(),
     {ok, Buttons} = c3card_buttons:button_status(),
-    Payload = #{readings => Readings,
-		platform => esp32c3,
-		system_info => c3card_system:info(),
-		control => c3card_comm:get_port(),
-		buttons => Buttons},
-
-    handle_buttons(Buttons),
-
-    case c3card_data:send_data(Payload) of
-	ok ->
-	    ok;
-	Error ->
-	    ?LOG_ERROR("error sending data: ~p", [Error])
+    CardInfo = #{readings => Readings,
+                 platform => esp32c3,
+                 screen => CurrentScreen,
+                 system_info => c3card_system:info(),
+                 control => c3card_comm:get_port(),
+                 buttons => Buttons},
+    NextScreen = btn_to_screen(Buttons, CurrentScreen),
+    spawn(fun() -> handle_buttons(Buttons, NextScreen) end),
+    case CurrentScreen == NextScreen of
+        false -> c3card_screen:clear();
+        true -> ok
     end,
-    loop(State).
+    ok = c3card_screen:render_screen(NextScreen, CardInfo),
+    spawn(fun() -> maybe_send_info(CardInfo) end),
+    loop(State#{screen => NextScreen}).
 
-handle_buttons(#{1 := low}) ->
-    c3card_screen:draw_text("button 1 was pressed");
-handle_buttons(_Buttons) ->
-    noop.
+%% @hidden
+btn_to_screen(#{1 := low}, CurrentScreen) ->
+    c3card_screen:switch_screen(CurrentScreen);
+btn_to_screen(_Buttons, CurrentScreen) ->
+    CurrentScreen.
+
+%% @hidden
+handle_buttons(#{1 := low}, _Screen) ->
+    c3card_neopixel:toggle_led(0, 350),
+    c3card_neopixel:clear_all();
+handle_buttons(_Buttons, _Screen) ->
+    ok.
+
+%% @hidden
+maybe_send_info(CardInfo) ->
+    case c3card_data:send_data(CardInfo) of
+        ok ->
+	    c3card_neopixel:toggle_led(2, 200);
+        {error, offline} ->
+            c3card_neopixel:toggle_led(2, 50);
+        Error ->
+	    c3card_neopixel:toggle_led(2, 350),
+            ?LOG_ERROR("error sending data: ~p", [Error])
+    end,
+    c3card_neopixel:clear_all().