const is_debug = builtin.mode == .Debug;

/// This creates a debug allocator that can only be referenced in debug mode.
/// You should check for is_debug around every reference to dba.
var dba: DebugAllocator =
    if (is_debug)
        DebugAllocator.init
    else
        @compileError("Should not use debug allocator in release mode");

pub fn main() !void {
    defer if (is_debug) {
        _ = dba.deinit();
    };

    var gpa = if (is_debug) dba.allocator() else std.heap.smp_allocator;

    const args = try std.process.argsAlloc(gpa);
    defer std.process.argsFree(gpa, args);

    var message = ArrayList(u8).init(gpa);
    defer message.deinit();

    for (args[1..], 0..) |arg, i| {
        try message.appendSlice(arg);
        if (i < args.len - 1)
            try message.append(' ');
    }

    const msg = SaprusMessage{
        .relay = .{
            .header = .{ .dest = .{ 255, 255, 255, 255 } },
            .payload = if (message.items.len > 0) message.items else "Hello darkness my old friend",
        },
    };

    const msg_bytes = try msg.toBytes(gpa);
    defer gpa.free(msg_bytes);

    try network.init();
    defer network.deinit();

    var sock = try network.Socket.create(.ipv4, .udp);
    defer sock.close();

    try sock.setBroadcast(true);

    // Bind to 0.0.0.0:0
    const bind_addr = network.EndPoint{
        .address = network.Address{ .ipv4 = network.Address.IPv4.any },
        .port = 0,
    };

    const dest_addr = network.EndPoint{
        .address = network.Address{ .ipv4 = network.Address.IPv4.broadcast },
        .port = 8888,
    };

    try sock.bind(bind_addr);

    _ = try sock.sendTo(dest_addr, msg_bytes);
}

const builtin = @import("builtin");
const std = @import("std");
const DebugAllocator = std.heap.DebugAllocator(.{});
const ArrayList = std.ArrayList;

const network = @import("network");

const SaprusMessage = @import("./saprus_message.zig").SaprusMessage;