From 1573a8c4cde1cd9528b422b2dcc598e37ffe94a7 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Thu, 2 May 2024 19:12:26 +1000
Subject: WIP merge cyclically dependent components into one big component

---
 src/tangara/lua/bridge.hpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/tangara/lua/bridge.hpp

(limited to 'src/tangara/lua/bridge.hpp')

diff --git a/src/tangara/lua/bridge.hpp b/src/tangara/lua/bridge.hpp
new file mode 100644
index 00000000..64f14e0e
--- /dev/null
+++ b/src/tangara/lua/bridge.hpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include "lua.hpp"
+#include "lvgl.h"
+#include "property.hpp"
+#include "service_locator.hpp"
+
+namespace lua {
+
+/*
+ * Responsible for adding C/C++ module bindings to Lua threads. This class
+ * keeps no thread-specific internal state, and instead uses the LUA_REGISTRY
+ * table of its host threads to store data.
+ */
+class Bridge {
+ public:
+  /*
+   * Utility for retrieving the Bridge from a Lua thread in which the Bridge's
+   * bindings have been installed. Use by Lua's C callbacks to access the rest
+   * of the system.
+   */
+  static auto Get(lua_State* state) -> Bridge*;
+
+  Bridge(system_fsm::ServiceLocator& s);
+
+  system_fsm::ServiceLocator& services() { return services_; }
+
+  auto installBaseModules(lua_State* L) -> void;
+  auto installLvgl(lua_State* L) -> void;
+  auto installPropertyModule(
+      lua_State* L,
+      const std::string&,
+      std::vector<
+          std::pair<std::string, std::variant<LuaFunction, Property*>>>&)
+      -> void;
+
+  Bridge(const Bridge&) = delete;
+  Bridge& operator=(const Bridge&) = delete;
+
+ private:
+  system_fsm::ServiceLocator& services_;
+  PropertyBindings bindings_;
+};
+
+}  // namespace lua
-- 
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