added JSON support to select the services

src/main.cpp

@@ -0,0 +1,72 @@
+#include <crow.h>
+#include <fstream>
+#include <sstream>
+#include <cstdlib>
+#include <string>
+#include <optional>
+#include "json_settings.h"
+#include "htmx_helper.h"
+#include "systemd.h"
+
+using namespace std;
+
+string load_file(const string& path) {
+    ifstream f(path);
+    stringstream buffer;
+    buffer << f.rdbuf();
+    return buffer.str();
+}
+
+optional<string> get_body_name(const string& body) {
+    const auto pos = body.find('=');
+    if (pos == std::string::npos) return {};
+
+    const string key = body.substr(0, pos);
+    string value = body.substr(pos + 1);
+
+    if (key != "name") return {};
+
+    return value;
+}
+
+int main() {
+    crow::SimpleApp app;
+
+    CROW_ROUTE(app, "/")([] {
+        return crow::response(load_file("templates/index.html"));
+    });
+
+    CROW_ROUTE(app, "/static/<string>")([](const std::string& file) {
+        return crow::response(load_file("static/" + file));
+    });
+
+    CROW_ROUTE(app, "/status")([] {
+        auto table = create_service_table();
+        return crow::response{table.htmx()};
+    });
+
+    CROW_ROUTE(app, "/toggle-service").methods(crow::HTTPMethod::Post)([](const crow::request& req) {
+        auto body = get_body_name(req.body);
+        if (!body.has_value())
+            return crow::response(400);
+    
+        const string& serviceName = body.value();
+    
+        auto opt_settings = AppSettings::loadAppSettings();
+ 
+        HtmxTableRow row;
+        if (opt_settings.has_value()) {
+            auto& settings = opt_settings.value();
+            const auto& service_id = settings.getId(serviceName).value_or(serviceName);
+
+            systemd::toggle_service(service_id);
+            row = create_service_table_row(serviceName, service_id);
+        }
+        else {
+            row = create_error_table_row(opt_settings.error());
+        }
+        return crow::response{row.htmx()};
+    });    
+
+    app.port(8080).multithreaded().run();
+}