/* Tests that we can add friends.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "../toxcore/ccompat.h"
#include "../toxcore/tox.h"
#include "../toxcore/util.h"
#include "../testing/misc_tools.h"
#include "auto_test_support.h"
#include "check_compat.h"

#define FR_MESSAGE "Gentoo"

static void accept_friend_request(Tox *tox, const Tox_Event_Friend_Request *event,
                                  void *userdata)
{
    const uint8_t *public_key = tox_event_friend_request_get_public_key(event);
    const uint8_t *data = tox_event_friend_request_get_message(event);
    const size_t length = tox_event_friend_request_get_message_length(event);
    ck_assert_msg(length == sizeof(FR_MESSAGE) && memcmp(FR_MESSAGE, data, sizeof(FR_MESSAGE)) == 0,
                  "unexpected friend request message");
    tox_friend_add_norequest(tox, public_key, nullptr);
}

static void iterate2_wait(Tox_Dispatch *dispatch, Tox *tox1, Tox *tox2)
{
    Tox_Err_Events_Iterate err;
    Tox_Events *events;

    events = tox_events_iterate(tox1, true, &err);
    ck_assert(err == TOX_ERR_EVENTS_ITERATE_OK);
    tox_dispatch_invoke(dispatch, events, tox1, nullptr);
    tox_events_free(events);

    events = tox_events_iterate(tox2, true, &err);
    ck_assert(err == TOX_ERR_EVENTS_ITERATE_OK);
    tox_dispatch_invoke(dispatch, events, tox2, nullptr);
    tox_events_free(events);

    c_sleep(ITERATION_INTERVAL);
}

static void test_friend_request(void)
{
    printf("Initialising 2 toxes.\n");
    uint32_t index[] = { 1, 2 };
    const time_t cur_time = time(nullptr);
    Tox *const tox1 = tox_new_log(nullptr, nullptr, &index[0]);
    Tox *const tox2 = tox_new_log(nullptr, nullptr, &index[1]);

    ck_assert_msg(tox1 && tox2, "failed to create 2 tox instances");

    tox_events_init(tox1);
    tox_events_init(tox2);

    printf("Bootstrapping tox2 off tox1.\n");
    uint8_t dht_key[TOX_PUBLIC_KEY_SIZE];
    tox_self_get_dht_id(tox1, dht_key);
    const uint16_t dht_port = tox_self_get_udp_port(tox1, nullptr);

    tox_bootstrap(tox2, "localhost", dht_port, dht_key, nullptr);

    Tox_Dispatch *dispatch = tox_dispatch_new(nullptr);
    ck_assert(dispatch != nullptr);

    do {
        iterate2_wait(dispatch, tox1, tox2);
    } while (tox_self_get_connection_status(tox1) == TOX_CONNECTION_NONE ||
             tox_self_get_connection_status(tox2) == TOX_CONNECTION_NONE);

    printf("Toxes are online, took %lu seconds.\n", (unsigned long)(time(nullptr) - cur_time));
    const time_t con_time = time(nullptr);

    printf("Tox1 adds tox2 as friend, tox2 accepts.\n");
    tox_events_callback_friend_request(dispatch, accept_friend_request);

    uint8_t address[TOX_ADDRESS_SIZE];
    tox_self_get_address(tox2, address);

    const uint32_t test = tox_friend_add(tox1, address, (const uint8_t *)FR_MESSAGE, sizeof(FR_MESSAGE), nullptr);
    ck_assert_msg(test == 0, "failed to add friend error code: %u", test);

    do {
        iterate2_wait(dispatch, tox1, tox2);
    } while (tox_friend_get_connection_status(tox1, 0, nullptr) != TOX_CONNECTION_UDP ||
             tox_friend_get_connection_status(tox2, 0, nullptr) != TOX_CONNECTION_UDP);

    printf("Tox clients connected took %lu seconds.\n", (unsigned long)(time(nullptr) - con_time));
    printf("friend_request_test succeeded, took %lu seconds.\n", (unsigned long)(time(nullptr) - cur_time));

    tox_dispatch_free(dispatch);
    tox_kill(tox1);
    tox_kill(tox2);
}

int main(void)
{
    setvbuf(stdout, nullptr, _IONBF, 0);

    test_friend_request();
    return 0;
}