Refactor project management: create Project class for handling project file operations and remove message handling code

src/app/core/project.cc

@@ -0,0 +1,58 @@
+#include "project.h"
+
+namespace yaze {
+namespace app {
+
+absl::Status Project::Open(const std::string &project_path) {
+  filepath = project_path;
+  name = project_path.substr(project_path.find_last_of("/") + 1);
+
+  std::ifstream in(project_path);
+
+  if (!in.good()) {
+    return absl::InternalError("Could not open project file.");
+  }
+
+  std::string line;
+  std::getline(in, name);
+  std::getline(in, filepath);
+  std::getline(in, rom_filename_);
+  std::getline(in, code_folder_);
+  std::getline(in, labels_filename_);
+  std::getline(in, keybindings_file);
+
+  while (std::getline(in, line)) {
+    if (line == kEndOfProjectFile) {
+      break;
+    }
+  }
+
+  in.close();
+
+  return absl::OkStatus();
+}
+
+absl::Status Project::Save() {
+  RETURN_IF_ERROR(CheckForEmptyFields());
+
+  std::ofstream out(filepath + "/" + name + ".yaze");
+  if (!out.good()) {
+    return absl::InternalError("Could not open project file.");
+  }
+
+  out << name << std::endl;
+  out << filepath << std::endl;
+  out << rom_filename_ << std::endl;
+  out << code_folder_ << std::endl;
+  out << labels_filename_ << std::endl;
+  out << keybindings_file << std::endl;
+
+  out << kEndOfProjectFile << std::endl;
+
+  out.close();
+
+  return absl::OkStatus();
+}
+
+}  // namespace app
+}  // namespace yaze