Initial radio implementation

Notable changes:
- Add radio gRPC API protobuf definitation and generated files.
- Reworked existing single gRPC APIs library to split it into
  per-API libraries to avoid name collision issues.
- Add radio gRPC client class and associated radio state class
  and RiverPod providers.
- Split media controls and play list table classes into media
  player and radio specific versions to facilitate customization
  and wiring up their appropriate backends in a straightforward
  fashion.  Some potential rationalization of styling widgets
  may be done as a follow up to avoid some duplication.
- Added radio configuration and presets loading.  The presets
  will be populated with the contents of a radio-presets.yaml
  file from the configured location, the default location is
  the /etc/xdg/AGL/ics-homescreen directory.
- Implemented FM radio player against the radio gRPC API.
  For the sake of expediency, no attempt has been made to make
  the player able to handle AM band support.
- Reworked media page navigation state so that active player is
  restored when coming back to the page.  Logic has been added to
  start/stop the radio on navigating to or leaving the FM radio
  sub-page.  This will potentially be reworked before CES to work
  with the pause/stop button present on the other pages.
- Started pruning down global exports.dart a bit to remove files
  only used in a specific page/hierarchy, starting with media.

Bug-AGL: SPEC-5029

Change-Id: I1ae0aca4a7a8218e69e4286c863f01509a1cccb7
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/lib/presentation/screens/media/radio_player.dart b/lib/presentation/screens/media/radio_player.dart
new file mode 100644
index 0000000..4531c7b
--- /dev/null
+++ b/lib/presentation/screens/media/radio_player.dart
@@ -0,0 +1,81 @@
+import 'package:flutter_ics_homescreen/data/data_providers/radio_presets_provider.dart';
+import 'package:flutter_ics_homescreen/export.dart';
+import 'radio_player_controls.dart';
+import 'radio_preset_table.dart';
+import 'segmented_buttons.dart';
+
+class RadioPlayer extends ConsumerStatefulWidget {
+  const RadioPlayer({super.key});
+
+  @override
+  ConsumerState<RadioPlayer> createState() => _RadioPlayerState();
+}
+
+class _RadioPlayerState extends ConsumerState<RadioPlayer> {
+  String selectedNav = "Standard";
+  List<String> navItems = [
+    "Standard",
+    "HD",
+  ];
+  String tableName = "Presets";
+  late List<RadioPreset> presets;
+  late String selectedPreset;
+
+  @override
+  void initState() {
+    presets = ref.read(radioPresetsProvider).fmPresets;
+    if (presets.isNotEmpty) {
+      selectedPreset = presets.first.name;
+    } else {
+      selectedPreset = "";
+    }
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    double fmSignalHeight = 460;
+    double fmSignalWidth = 460;
+
+    return Container(
+      padding: const EdgeInsets.only(left: 7, right: 7),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          SegmentedButtons(
+            navItems: navItems,
+            selectedNav: selectedNav,
+          ),
+          const SizedBox(
+            height: 32,
+          ),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Image.asset(
+                "assets/AlbumArtFM.png",
+                width: fmSignalWidth,
+                height: fmSignalHeight,
+              )
+            ],
+          ),
+          const SizedBox(
+            height: 40,
+          ),
+          Column(
+            children: [
+              const RadioPlayerControls(),
+              const SizedBox(
+                height: 70,
+              ),
+              RadioPresetTable(
+                  presets: presets,
+                  selectedPreset: selectedPreset,
+                  tableName: tableName),
+            ],
+          )
+        ],
+      ),
+    );
+  }
+}