browser wasm

examples/SimpleClient/project.cpp

@@ -0,0 +1,79 @@
+import std;
+import Crafter.Build;
+namespace fs = std::filesystem;
+using namespace Crafter;
+
+extern "C" Configuration CrafterBuildProject(std::span<const std::string_view> args) {
+    // Dispatch on --target: wasm32-* → browser client; anything else → native server.
+    // Plain `crafter-build` (no --target) defaults to the browser client so the
+    // primary use case keeps working without flags.
+    bool isBrowser = true;
+    for (const auto& a : args) {
+        if (a.starts_with("--target=")) {
+            isBrowser = (a.find("wasm") != std::string_view::npos);
+            break;
+        }
+    }
+
+    std::vector<std::string> netArgs(args.begin(), args.end());
+
+    if (isBrowser) {
+        // Force wasm32-wasip1 when no --target was supplied.
+        bool hasTarget = false;
+        for (const auto& a : netArgs) {
+            if (a.starts_with("--target=")) { hasTarget = true; break; }
+        }
+        if (!hasTarget) netArgs.emplace_back("--target=wasm32-wasip1");
+
+        Configuration* network = LocalProject({
+            .projectFile = "../../project.cpp",
+            .args = netArgs,
+        });
+
+        Configuration cfg;
+        cfg.path = "./";
+        cfg.name = "SimpleClient";
+        cfg.outputName = "SimpleClient";
+        cfg.type = ConfigurationType::Executable;
+        cfg.target = "wasm32-wasip1";
+        // Mirror CRAFTER_NETWORK_BROWSER so main.cpp sees the same API surface
+        // as the wasm .pcm (Crafter.Build does not propagate defines from deps).
+        cfg.defines.push_back({"CRAFTER_NETWORK_BROWSER", ""});
+        ApplyStandardArgs(cfg, args);
+        cfg.dependencies = { network };
+        cfg.files = { "cert-hash.txt" };
+
+        std::array<fs::path, 0> ifaces = {};
+        std::array<fs::path, 1> impls = { "main" };
+        cfg.GetInterfacesAndImplementations(ifaces, impls);
+
+        // Crafter.Network ships additional/network-env.js via cfg.files;
+        // Crafter.Build propagates it to the output dir alongside the .wasm.
+        // EnableWasiBrowserRuntime wires it into the generated index.html.
+        EnableWasiBrowserRuntime(cfg);
+
+        return cfg;
+    }
+
+    // Native server — echo server on port 4443.
+    Configuration* network = LocalProject({
+        .projectFile = "../../project.cpp",
+        .args = netArgs,
+    });
+
+    Configuration cfg;
+    cfg.path = "./";
+    cfg.name = "SimpleServer";
+    cfg.outputName = "SimpleServer";
+    cfg.type = ConfigurationType::Executable;
+    ApplyStandardArgs(cfg, args);
+    cfg.dependencies = { network };
+    cfg.linkFlags.push_back("-Wl,--export-dynamic");
+    cfg.linkFlags.push_back("-ldl");
+
+    std::array<fs::path, 0> ifaces = {};
+    std::array<fs::path, 1> impls = { "main" };
+    cfg.GetInterfacesAndImplementations(ifaces, impls);
+
+    return cfg;
+}