const std = @import("std");
const transport = @import("crasa-transport");
const zargs = @import("zargs");
const log = transport.logging.log;

const Config = struct {
    port: u16 = 9700,

    pub const meta = .{
        .port = .{
            .short = 'p',
            .help = "UDP port",
        },
    };
};

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    defer _ = gpa.deinit();
    const allocator = gpa.allocator();
    zargs.setAllocator(allocator);
    defer zargs.shutdown();

    const config = try zargs.parse(Config);
    const argv = try std.process.argsAlloc(allocator);
    defer std.process.argsFree(allocator, argv);

    if (zargs.isHelp()) {
        const help_text = try zargs.getUsageAlloc("test-server");
        defer allocator.free(help_text);
        std.debug.print("{s}", .{help_text});
        return;
    }

    log.info("server startup argc={d} port={d}", .{ argv.len, config.port });
    for (argv, 0..) |arg, i| {
        log.info("server argv[{d}]={s}", .{ i, arg });
    }

    const engine = try transport.UdpEngine.create(allocator);
    defer engine.destroy();
    try engine.serve(config.port);

    while (!engine.shouldExit()) {
        std.Thread.sleep(500 * std.time.ns_per_ms);
    }
}