// client

export fn zaprus_init() c_int {
    SaprusClient.init() catch return 1;
    return 0;
}

export fn zaprus_deinit() c_int {
    SaprusClient.deinit();
    return 0;
}

export fn zaprus_send_relay(payload: [*]const u8, len: usize, dest: [4]u8) c_int {
    SaprusClient.sendRelay(payload[0..len], dest, allocator) catch return 1;
    return 0;
}

export fn zaprus_send_initial_connection(payload: [*]const u8, len: usize, initial_port: u16) c_int {
    SaprusClient.sendInitialConnection(payload[0..len], initial_port, allocator) catch return 1;
    return 0;
}

export fn zaprus_connect(payload: [*]const u8, len: usize) ?*SaprusMessage {
    return SaprusClient.connect(payload[0..len], allocator) catch null;
}

// message

/// ptr should be freed by the caller.
export fn zaprus_message_to_bytes(msg: SaprusMessage, ptr: *[*]u8, len: *usize) c_int {
    const bytes = msg.toBytes(allocator) catch return 1;
    ptr.* = bytes[0..].*;
    len.* = bytes.len;
    return 0;
}

/// Return value should be destroyed with zaprus_message_deinit.
export fn zaprus_message_from_bytes(bytes: [*]const u8, len: usize) ?*SaprusMessage {
    return SaprusMessage.fromBytes(bytes[0..len], allocator) catch null;
}

export fn zaprus_message_deinit(msg: *SaprusMessage) void {
    msg.deinit(allocator);
}

const std = @import("std");

const zaprus = @import("./root.zig");
const SaprusClient = zaprus.Client;
const SaprusMessage = zaprus.Message;

const allocator = std.heap.c_allocator;

test {
    std.testing.refAllDeclsRecursively(@This());
}