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#include "tweet.h"
#include <json.hpp>
#include <cassert>
using nlohmann::json;
namespace twitter {
tweet::tweet() : _valid(false)
{
}
tweet::tweet(std::string data) : _valid(true)
{
auto _data = json::parse(data);
_id = _data.at("id");
_text = _data.at("text");
_author = user(_data.at("user").dump());
if (_data.find("retweeted_status") != _data.end())
{
_is_retweet = true;
std::string retweet = _data.at("retweeted_status").dump();
_retweeted_status = new tweet(retweet);
}
if (_data.find("entities") != _data.end())
{
auto _entities = _data.at("entities");
if (_entities.find("user_mentions") != _entities.end())
{
for (auto _mention : _entities.at("user_mentions"))
{
_mentions.push_back(std::make_pair(_mention.at("id"), _mention.at("screen_name").get<std::string>()));
}
}
}
}
tweet::tweet(const tweet& other)
{
_valid = other._valid;
_id = other._id;
_text = other._text;
_author = other._author;
_is_retweet = other._is_retweet;
if (_is_retweet)
{
_retweeted_status = new tweet(*other._retweeted_status);
}
_mentions = other._mentions;
}
tweet::tweet(tweet&& other) : tweet()
{
swap(*this, other);
}
tweet::~tweet()
{
if (_is_retweet)
{
delete _retweeted_status;
}
}
tweet& tweet::operator=(tweet other)
{
swap(*this, other);
return *this;
}
void swap(tweet& first, tweet& second)
{
std::swap(first._valid, second._valid);
std::swap(first._id, second._id);
std::swap(first._text, second._text);
std::swap(first._author, second._author);
std::swap(first._is_retweet, second._is_retweet);
std::swap(first._retweeted_status, second._retweeted_status);
std::swap(first._mentions, second._mentions);
}
tweet_id tweet::getID() const
{
assert(_valid);
return _id;
}
std::string tweet::getText() const
{
assert(_valid);
return _text;
}
const user& tweet::getAuthor() const
{
assert(_valid);
return _author;
}
bool tweet::isRetweet() const
{
assert(_valid);
return _is_retweet;
}
tweet tweet::getRetweet() const
{
assert(_valid && _is_retweet);
return *_retweeted_status;
}
std::vector<std::pair<user_id, std::string>> tweet::getMentions() const
{
return _mentions;
}
std::string tweet::getURL() const
{
return "https://twitter.com/" + _author.getScreenName() + "/statuses/" + std::to_string(_id);
}
tweet::operator bool() const
{
return _valid;
}
};
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