/*  This file is part of mastodon-cpp.
 *  Copyright © 2019 tastytea <tastytea@tastytea.de>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, version 3.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <exception>
#include <string>
#include <cstdlib>
#include <catch.hpp>
#include "mastodon-cpp.hpp"
#include "easy/easy.hpp"
#include "easy/entities/relationship.hpp"

using namespace Mastodon;

SCENARIO ("/api/v1/accounts/:id/follow can be called successfully",
          "[api][mastodon][pleroma][glitch-soc]")
{
    GIVEN ("instance, access token, user id and return_call")
    {
        const char *env_instance = std::getenv("MASTODON_CPP_INSTANCE");
        const string instance =
            (env_instance ? env_instance : "likeable.space");
        const char *access_token = std::getenv("MASTODON_CPP_ACCESS_TOKEN");
        const char *env_user_id = std::getenv("MASTODON_CPP_USER_ID");
        const string user_id =
            (env_user_id ? env_user_id : "9hnrrVPriLiLVAhfVo");

        return_call ret;
        bool exception = false;
        bool following_found = false;
        bool error_found = false;

        // You can't follow yourself, so we look for errors too.

        REQUIRE (access_token != nullptr);

        GIVEN ("Mastodon::API")
        {
            Mastodon::API masto(instance, access_token);

            WHEN ("/api/v1/accounts/" + user_id + "/follow is called")
            {
                try
                {
                    ret = masto.post(API::v1::accounts_id_follow,
                                    {
                                        { "id", { user_id } },
                                    });
                    following_found =
                        ret.answer.find("\"following\":\"")
                        != std::string::npos;
                    error_found = following_found =
                        ret.answer.find("\"error")
                        != std::string::npos;
                }
                catch (const std::exception &e)
                {
                    exception = true;
                    WARN(e.what());
                }
                THEN("No exception is thrown")
                {
                    REQUIRE_FALSE(exception);
                }
                THEN ("No unexpected errors are returned")
                {
                    REQUIRE((ret.error_code == 0
                             || ret.error_code == 111));
                    REQUIRE((ret.http_error_code == 200
                             || ret.http_error_code == 500));
                }
                THEN ("The answer makes sense")
                {
                    REQUIRE((following_found || error_found));
                }
            }
        }

        GIVEN ("Mastodon::Easy::API")
        {
            Mastodon::Easy::API masto(instance, access_token);
            Easy::Relationship relationship;

            WHEN ("/api/v1/accounts/" + user_id + "/follow is called")
            {
                try
                {
                    ret = masto.post(API::v1::accounts_id_follow,
                                     {
                                         { "id", { user_id } },
                                     });
                    relationship.from_string(ret.answer);
                }
                catch (const std::exception &e)
                {
                    exception = true;
                    WARN(e.what());
                }
                THEN("No exception is thrown")
                {
                    REQUIRE_FALSE(exception);
                }
                THEN ("No unexpected errors are returned")
                {
                    REQUIRE((ret.error_code == 0
                             || ret.error_code == 111));
                    REQUIRE((ret.http_error_code == 200
                             || ret.http_error_code == 500));
                }
                THEN ("The answer makes sense")
                {
                    REQUIRE((relationship.following()
                             || relationship.error() != ""));
                }
            }
        }
    }
}