diagrams and simulation

examples/simulations/ab-trial-boot/main.cpp

@@ -0,0 +1,30 @@
+#include "simulation.hpp"
+
+#include <algorithm>
+#include <iostream>
+#include <stdexcept>
+
+int main(int argc, char* argv[]) {
+    const std::string selected = argc > 1 ? argv[1] : "all";
+    if (argc > 2 || selected == "--help" || selected == "-h" ||
+        (selected != "all" && std::find(ota::scenarios().begin(), ota::scenarios().end(),
+                                      selected) == ota::scenarios().end())) {
+        std::ostream& output = (argc == 2 && (selected == "--help" || selected == "-h"))
+            ? std::cout : std::cerr;
+        output << "Usage: ab-simulate [all";
+        for (const auto& scenario : ota::scenarios()) output << '|' << scenario;
+        output << "]\n";
+        return &output == &std::cout ? 0 : 2;
+    }
+    try {
+        for (const auto& scenario : ota::scenarios()) {
+            if (selected != "all" && selected != scenario) continue;
+            std::cout << "\n=== " << scenario << " ===\n";
+            ota::TemporaryDirectory directory;
+            ota::run_scenario(scenario, directory.path(), &std::cout);
+        }
+    } catch (const std::exception& error) {
+        std::cerr << "Simulation failed: " << error.what() << '\n';
+        return 1;
+    }
+}