From 71ed09a6f70901c9097973a44b24d6a6ced2834f Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Tue, 14 Nov 2023 13:20:04 +1100
Subject: Add two-way databinding for lua, and flesh out the lua statusbar

---
 src/ui/include/ui_fsm.hpp | 19 ++++++++++++++++---
 src/ui/ui_fsm.cpp         | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 3 deletions(-)

(limited to 'src/ui')

diff --git a/src/ui/include/ui_fsm.hpp b/src/ui/include/ui_fsm.hpp
index 7d1d62d6..39fae4b0 100644
--- a/src/ui/include/ui_fsm.hpp
+++ b/src/ui/include/ui_fsm.hpp
@@ -21,6 +21,7 @@
 #include "model_playback.hpp"
 #include "model_top_bar.hpp"
 #include "nvs.hpp"
+#include "property.hpp"
 #include "relative_wheel.hpp"
 #include "screen_playing.hpp"
 #include "screen_settings.hpp"
@@ -56,9 +57,9 @@ class UiState : public tinyfsm::Fsm<UiState> {
   /* Fallback event handler. Does nothing. */
   void react(const tinyfsm::Event& ev) {}
 
-  void react(const system_fsm::BatteryStateChanged&);
-  void react(const audio::PlaybackStarted&);
-  void react(const audio::PlaybackFinished&);
+  virtual void react(const system_fsm::BatteryStateChanged&);
+  virtual void react(const audio::PlaybackStarted&);
+  virtual void react(const audio::PlaybackFinished&);
   void react(const audio::PlaybackUpdate&);
   void react(const audio::QueueUpdate&);
 
@@ -127,7 +128,19 @@ class Lua : public UiState {
   void react(const internal::ShowNowPlaying&) override;
   void react(const internal::ShowSettingsPage&) override;
 
+  void react(const system_fsm::BatteryStateChanged&) override;
+  void react(const audio::PlaybackStarted&) override;
+  void react(const audio::PlaybackFinished&) override;
+
   using UiState::react;
+
+ private:
+  std::shared_ptr<lua::Property> battery_pct_;
+  std::shared_ptr<lua::Property> battery_mv_;
+  std::shared_ptr<lua::Property> battery_charging_;
+  std::shared_ptr<lua::Property> bluetooth_en_;
+  std::shared_ptr<lua::Property> playback_playing_;
+  std::shared_ptr<lua::Property> playback_track_;
 };
 
 class Onboarding : public UiState {
diff --git a/src/ui/ui_fsm.cpp b/src/ui/ui_fsm.cpp
index 748e08f9..9ecc9b7c 100644
--- a/src/ui/ui_fsm.cpp
+++ b/src/ui/ui_fsm.cpp
@@ -33,6 +33,7 @@
 #include "modal_progress.hpp"
 #include "model_playback.hpp"
 #include "nvs.hpp"
+#include "property.hpp"
 #include "relative_wheel.hpp"
 #include "screen.hpp"
 #include "screen_lua.hpp"
@@ -183,7 +184,36 @@ void Lua::entry() {
     sCurrentScreen.reset(new Screen());
     lv_group_set_default(sCurrentScreen->group());
 
+    auto bat =
+        sServices->battery().State().value_or(battery::Battery::BatteryState{});
+    battery_pct_ =
+        std::make_shared<lua::Property>(static_cast<int>(bat.percent));
+    battery_mv_ =
+        std::make_shared<lua::Property>(static_cast<int>(bat.millivolts));
+    battery_charging_ = std::make_shared<lua::Property>(bat.is_charging);
+
+    bluetooth_en_ = std::make_shared<lua::Property>(false);
+    playback_playing_ = std::make_shared<lua::Property>(false);
+    playback_track_ = std::make_shared<lua::Property>();
+
     sLua.reset(lua::LuaThread::Start(*sServices, sCurrentScreen->content()));
+    sLua->bridge().AddPropertyModule("power",
+                                     {
+                                         {"battery_pct", battery_pct_},
+                                         {"battery_millivolts", battery_mv_},
+                                         {"plugged_in", battery_charging_},
+                                     });
+    sLua->bridge().AddPropertyModule("bluetooth",
+                                     {
+                                         {"enabled", bluetooth_en_},
+                                         {"connected", bluetooth_en_},
+                                     });
+    sLua->bridge().AddPropertyModule("playback",
+                                     {
+                                         {"playing", playback_playing_},
+                                         {"track", playback_track_},
+                                     });
+
     sLua->RunScript("/lua/main.lua");
 
     lv_group_set_default(NULL);
@@ -216,6 +246,19 @@ void Lua::react(const internal::ShowSettingsPage& ev) {
   transit<Browse>();
 }
 
+void Lua::react(const system_fsm::BatteryStateChanged& ev) {
+  battery_pct_->Update(static_cast<int>(ev.new_state.percent));
+  battery_mv_->Update(static_cast<int>(ev.new_state.millivolts));
+}
+
+void Lua::react(const audio::PlaybackStarted&) {
+  playback_playing_->Update(true);
+}
+
+void Lua::react(const audio::PlaybackFinished&) {
+  playback_playing_->Update(false);
+}
+
 void Onboarding::entry() {
   progress_ = 0;
   has_formatted_ = false;
-- 
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