优化了 还是卡

web_server/src/Web_Server.cpp

@@ -3,6 +3,7 @@
 #include "Gallery_WebSocket.hpp"
 #include "Graph_WebSocket.hpp"
 #include "Gallery_Plots.hpp"
+#include "Page_Session.hpp"
 #include <drogon/drogon.h>
 #include <nlohmann/json.hpp>
 #include <algorithm>
@@ -175,24 +176,36 @@ int run_web_server(std::uint16_t port, const std::filesystem::path& asset_root)
     };
     add_media_groups("2d", std::move(gallery_2d));
     add_media_groups("3d", std::move(gallery_3d));
+    auto page_session = std::make_shared<Page_Session>();
     auto resolve_plot = [plots](std::string_view id) { return find_plot(*plots, id); };
-    auto websocket = std::make_shared<Graph_WebSocket_Controller>(resolve_plot);
+    auto websocket = std::make_shared<Graph_WebSocket_Controller>(
+        resolve_plot, page_session);
     auto gallery_websocket = std::make_shared<Gallery_WebSocket_Controller>(
         [gallery_streams](std::string_view id) {
             const auto found = gallery_streams->find(std::string{id});
             return found == gallery_streams->end() ? nullptr : found->second;
-        });
+        }, page_session);
     auto& app = drogon::app();
 
+    app.registerHandler("/page/session", [page_session](
+        const drogon::HttpRequestPtr&,
+        std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
+        callback(json_response({
+            {"protocol", "aethera.page.session"},
+            {"version", 1},
+            {"token", page_session->begin_page()}}));
+    }, {drogon::Post});
+
     app.registerHandler("/plot", [plots, plot_media](const drogon::HttpRequestPtr&,
                                          std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
         nlohmann::json result = nlohmann::json::array();
         for (const auto& [id, plot] : *plots) {
             static_cast<void>(plot);
+            const auto& media = plot_media->at(id);
             result.push_back({
                 {"id", id}, {"title", id}, {"category", "Plots"}, {"description", ""},
                 {"dimension", id.starts_with("datoviz_") ? "3D" : "2D"}, {"websocket", "/ws/plot/" + id},
-                {"media", plot_media->at(id)},
+                {"media", media},
                 {"schema", "/plot/" + id + "/schema"},
                 {"diagnostics", "/plot/" + id + "/diagnostics"},
                 {"taskflow", "/plot/" + id + "/taskflow"}});