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#include "client.hpp"
#include <ixwebsocket/IXWebSocketMessage.h>
#include <ixwebsocket/IXWebSocketMessageType.h>
#include <algorithm>
#include <iostream>
#include <optional>
#include <string>
#include <vector>
#include "../logger.hpp"
#include "cpr/api.h"
#include "cpr/cprtypes.h"
#include "cpr/response.h"
#include "message.hpp"
#include "nlohmann/json.hpp"
using namespace bot::irc;
Client::Client(std::string client_id, std::string token) {
this->client_id = client_id;
this->token = token;
this->host = "wss://irc-ws.chat.twitch.tv";
this->port = "443";
this->websocket.setUrl(this->host + ":" + this->port);
// getting token owner
cpr::Response response = cpr::Get(
cpr::Url{"https://api.twitch.tv/helix/users"}, cpr::Bearer{this->token},
cpr::Header{{"Client-Id", this->client_id}});
if (response.status_code != 200) {
log::warn("IRC", "Failed to get bot username from Twitch API: " +
std::to_string(response.status_code) + " " +
response.status_line);
} else {
nlohmann::json j = nlohmann::json::parse(response.text);
auto d = j["data"][0];
this->id = std::stoi(d["id"].get<std::string>());
this->username = d["login"];
}
}
void Client::run() {
this->websocket.setOnMessageCallback(
[this](const ix::WebSocketMessagePtr &msg) {
switch (msg->type) {
case ix::WebSocketMessageType::Message: {
log::info("IRC", "Received message: " + msg->str);
std::vector<std::string> lines =
utils::string::split_text(msg->str, '\n');
for (std::string &line : lines) {
line.erase(std::remove_if(line.begin(), line.end(),
[](char c) {
return c == '\n' || c == '\r' ||
c == '\t';
}),
line.end());
std::optional<IRCMessage> m = IRCMessage::from_string(line);
if (!m.has_value()) {
break;
}
std::optional<MessageType> type = define_message_type(m->command);
if (!type.has_value()) {
break;
}
MessageType m_type = type.value();
if (m_type == MessageType::Privmsg) {
std::optional<Message<MessageType::Privmsg>> message =
parse_message<MessageType::Privmsg>(*m);
if (message.has_value()) {
this->onPrivmsg(message.value());
}
} else if (m_type == MessageType::Ping) {
// as the docs say, the message should be the same as the one
// from the ping
std::string text;
if (!m->params.empty()) {
text = " :" + m->params.at(0);
}
this->raw("PONG" + text);
}
}
break;
}
case ix::WebSocketMessageType::Open: {
log::info("IRC", "Connected to Twitch IRC");
this->is_connected = true;
this->authorize();
for (const auto &msg : this->pool) {
this->websocket.send(msg);
}
this->pool.clear();
break;
}
case ix::WebSocketMessageType::Close: {
log::info("IRC", "Twitch IRC connection closed");
this->is_connected = false;
for (const auto &x : this->joined_channels) {
this->raw("JOIN #" + x);
}
break;
}
default: {
break;
}
}
});
this->websocket.start();
}
void Client::say(const std::string &channel_login, const std::string &message) {
this->raw("PRIVMSG #" + channel_login + " :" + message);
log::info("IRC", "Sent '" + message + "' in #" + channel_login);
}
bool Client::join(const std::string &channel_login) {
auto already_joined =
std::any_of(this->joined_channels.begin(), this->joined_channels.end(),
[&](const auto &x) { return x == channel_login; });
if (!already_joined) {
this->raw("JOIN #" + channel_login);
this->joined_channels.push_back(channel_login);
log::info("IRC", "Joined #" + channel_login);
}
return !already_joined;
}
void Client::raw(const std::string &raw_message) {
std::string msg = raw_message + "\r\n";
if (this->is_connected) {
this->websocket.send(msg);
} else {
this->pool.push_back(msg);
}
}
void Client::authorize() {
if (this->username.empty() || this->token.empty()) {
log::error("IRC", "Bot username and token must be set for authorization!");
return;
}
log::info("IRC", "Authorizing on Twitch IRC servers...");
this->raw("PASS oauth:" + this->token);
this->raw("NICK " + this->username);
this->raw("CAP REQ :twitch.tv/membership");
this->raw("CAP REQ :twitch.tv/commands");
this->raw("CAP REQ :twitch.tv/tags");
}
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