Initial commit

src/engine/core/engine.cpp

@@ -0,0 +1,54 @@
+#include <cstdint>
+#include <engine/core/engine.hpp>
+#include <memory>
+#include <stdexcept>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+uint16_t MscEngine::REV = 0;
+
+MscEngine::MscEngine(std::vector<std::shared_ptr<MscEngineModule>> modules) {
+  std::unordered_map<std::string, uint16_t> registry;
+  for (const auto &module : modules) {
+    if (!module)
+      continue;
+
+    auto [it, inserted] =
+        registry.try_emplace(module->getName(), module->getRev());
+    if (!inserted) {
+      throw std::runtime_error("Duplicate module detected: " +
+                               module->getName());
+    }
+  }
+
+  for (const auto &module : modules) {
+    if (!module)
+      continue;
+
+    for (const auto &[dep_name, range] : module->getDependencies()) {
+      auto it = registry.find(dep_name);
+      if (it == registry.end()) {
+        throw std::runtime_error("Module " + module->getName() +
+                                 " requires missing module: " + dep_name);
+      }
+
+      int current_rev = it->second;
+      if (!range.isSatisfied(current_rev)) {
+        throw std::runtime_error(
+            "Module " + module->getName() + " requires " + dep_name +
+            " in range [" + std::to_string(range.minRevision) + " <-> " +
+            std::to_string(range.maxRevision) + "], but got rev" +
+            std::to_string(current_rev));
+      }
+    }
+  }
+
+  _modules = std::move(modules);
+}
+
+UNIMPL MscEngine::getBus() const { throw std::runtime_error("Unimplemented"); }
+
+UNIMPL MscEngine::getLoadedModules() const {
+  throw std::runtime_error("Unimplemented");
+}