023 registry scope basic

// Test: Registry Scope - Basic
//
// Verifies that ~std/runtime:register generates a dispatcher function

~import std/runtime
~import std/io

const std = @import("std");

// Define some application events
~pub event greet { name: []const u8 }
| greeted []const u8

~proc greet|zig {
    const msg = std.fmt.allocPrint(std.heap.page_allocator, "Hello, {s}!", .{name}) catch "Hello!";
    return .{ .greeted = msg };
}

~pub event farewell { name: []const u8 }

~proc farewell|zig {
    std.debug.print("Goodbye, {s}!\n", .{name});
}

// Register a scope with these events
~std/runtime:register(scope: "api") {
    greet
    farewell
}

// Test: Verify the registry was generated
pub fn main() void {
    std.debug.print("\n", .{});
    std.debug.print("╔══════════════════════════════════════════════════════════════╗\n", .{});
    std.debug.print("║     REGISTRY SCOPE BASIC TEST                                ║\n", .{});
    std.debug.print("╚══════════════════════════════════════════════════════════════╝\n\n", .{});

    // Test 1: dispatch_api should exist and be callable
    std.debug.print("Test 1: Calling dispatch_api with 'greet'...\n", .{});

    const segments = [_][]const u8{"greet"};
    const path = Path{
        .module_qualifier = null,
        .segments = &segments,
    };
    var args_array = [_]Arg{
        .{ .name = "name", .value = "World" },
    };
    const inv = Invocation{
        .path = path,
        .args = &args_array,
    };

    var result: DispatchResult = undefined;
    dispatch_api(&inv, &result) catch |err| {
        std.debug.print("  ✗ FAILED: Dispatch error: {}\n", .{err});
        return;
    };

    std.debug.print("  ✓ Dispatched successfully, branch: {s}\n", .{result.branch});

    std.debug.print("\n╔══════════════════════════════════════════════════════════════╗\n", .{});
    std.debug.print("║     REGISTRY TESTS COMPLETE                                  ║\n", .{});
    std.debug.print("╚══════════════════════════════════════════════════════════════╝\n", .{});
}