diff options
Diffstat (limited to 'source.cpp')
| -rw-r--r-- | source.cpp | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/source.cpp b/source.cpp deleted file mode 100644 index 1894a71..0000000 --- a/source.cpp +++ /dev/null @@ -1,389 +0,0 @@ -#include <curl/curl.h> -#include <algorithm> -#include <sqlite3.h> -#include <iostream> -#include <optional> -#include <unistd.h> -#include <fstream> -#include <random> -#include <vector> - -#include "json.hpp" - -std::default_random_engine prng; -sqlite3 *dbc; -CURL *curl_handle; - -std::string bot_token; -std::string channel_id; -int polls_per_day; -long post_time_utc; - -void init_db() { - - sqlite3_exec(dbc, - "begin transaction; " - "create table misc (" - "on_round INTEGER NOT NULL); " - "insert into misc (on_round) " - "values (0); " - "create table entries (" - "name TEXT UNIQUE NOT NULL, " - "round INTEGER NOT NULL, " - "in_active_poll INTEGER NOT NULL); " - "create table active_polls (" - "msg_id TEXT UNIQUE NOT NULL); " - "create table past_polls (" - "round INTEGER NOT NULL, " - "entry_1 TEXT NOT NULL, " - "entry_2 TEXT NOT NULL, " - "users_1 TEXT NOT NULL, " - "users_2 TEXT NOT NULL)", - 0, 0, 0); - - sqlite3_stmt *insert_entry; - sqlite3_prepare_v2(dbc, - "insert into entries (name, round, in_active_poll)" - "values (?, 1, 0)", -1, &insert_entry, 0); - - std::ifstream entries("entries.txt"); - if (!entries) { - std::cerr << "Please put the list of entries into entries.txt, separated by newlines." << std::endl; - exit(1); - } - - std::string entry; - while (std::getline(entries, entry)) { - sqlite3_bind_text(insert_entry, 1, entry.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(insert_entry) != SQLITE_DONE) - ; - sqlite3_reset(insert_entry); - } - - sqlite3_exec(dbc, "end transaction", 0, 0, 0); - sqlite3_finalize(insert_entry); - -} - -int current_round_number; -std::vector<std::string> left_for_this_round; - -void load_on_round() { - current_round_number = -1; - sqlite3_exec(dbc, - "select on_round from misc limit 1", - [](void *, int, char **row, char **) { - current_round_number = atoi(row[0]); - return 0; - }, 0, 0); -} - -void save_on_round() { - sqlite3_stmt *update; - sqlite3_prepare_v2(dbc, "update misc set on_round = ?", -1, &update, 0); - sqlite3_bind_int(update, 1, current_round_number); - while (sqlite3_step(update) != SQLITE_DONE) - ; - sqlite3_finalize(update); -} - -void load_left_for_round() { - sqlite3_stmt *select_left; - sqlite3_prepare_v2(dbc, - "select name from entries where round = ? and in_active_poll = 0", - -1, &select_left, 0); - sqlite3_bind_int(select_left, 1, current_round_number); - - left_for_this_round.clear(); - int result; - while ((result = sqlite3_step(select_left)) != SQLITE_DONE) - if (result == SQLITE_ROW) - left_for_this_round.push_back( - std::string((const char *)sqlite3_column_text(select_left, 0))); - - sqlite3_finalize(select_left); - std::shuffle(left_for_this_round.begin(), left_for_this_round.end(), prng); -} - -void set_round(const std::string &str, int round) { - sqlite3_stmt *update; - sqlite3_prepare_v2(dbc, "update entries set round = ? where name = ?", -1, &update, 0); - sqlite3_bind_int(update, 1, round); - sqlite3_bind_text(update, 2, str.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(update) != SQLITE_DONE) - ; - sqlite3_finalize(update); -} - -void set_in_poll(const std::string &str, bool value) { - sqlite3_stmt *update; - sqlite3_prepare_v2(dbc, "update entries set in_active_poll = ? where name = ?", -1, &update, 0); - sqlite3_bind_int(update, 1, value ? 1 : 0); - sqlite3_bind_text(update, 2, str.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(update) != SQLITE_DONE) - ; - sqlite3_finalize(update); -} - -std::string curl_reciept; - -size_t write_callback(void *ptr, size_t, size_t count, void *) { - size_t offset = curl_reciept.size(); - curl_reciept.resize(offset + count); - memcpy(curl_reciept.data() + offset, ptr, count); - return count; -} - -nlohmann::json api(const std::string &endpoint, bool is_post, const std::string &read_from = "") { - curl_reciept.clear(); - curl_easy_setopt(curl_handle, CURLOPT_URL, ("https://discord.com/api/v10" + endpoint).c_str()); - curl_easy_setopt(curl_handle, is_post ? CURLOPT_POST : CURLOPT_HTTPGET, 1); - curl_slist *sl = 0; - sl = curl_slist_append(sl, ("Authorization: Bot " + bot_token).c_str()); - if (is_post) - sl = curl_slist_append(sl, "Content-Type: application/json"); - curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, sl); - curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, &write_callback); - if (is_post) - curl_easy_setopt(curl_handle, CURLOPT_POSTFIELDS, read_from.c_str()); - curl_easy_perform(curl_handle); - curl_slist_free_all(sl); - std::cout << "\n" << curl_reciept << std::endl; - auto as_json = nlohmann::json::parse(curl_reciept); - if (as_json.contains("message") && as_json["message"] == "You are being rate limited.") { - sleep((int)(as_json["retry_after"].template get<double>() + 1) * 2); - return api(endpoint, is_post, read_from); - } - return as_json; -} - -std::vector<std::string> get_users(const std::string &msg_id, int answer_id) { - std::string base = "/channels/" + channel_id + "/polls/" + msg_id + "/answers/" + std::to_string(answer_id) + "?limit=100"; - std::vector<std::string> all_users; - nlohmann::json returned_list = api(base, false)["users"]; - while (returned_list.size() > 0) { - for (auto user : returned_list) - all_users.push_back(user["id"].template get<std::string>()); - returned_list = api(base + "&after=" + all_users.back(), false)["users"]; - } - return all_users; -} - -void process_all_pending() { - std::vector<std::string> pending_msgs; - sqlite3_exec(dbc, - "select msg_id from active_polls", - [](void *ptr, int, char **row, char **) { - ((std::vector<std::string> *)ptr)->push_back(std::string(row[0])); - return 0; - }, &pending_msgs, 0); - - for (const std::string &msg_id : pending_msgs) { - - nlohmann::json result; - int sleep_time = 1; - while (true) { - result = api("/channels/" + channel_id + "/messages/" + msg_id, false); - if (result["poll"]["results"]["is_finalized"].template get<bool>()) - break; - sleep(sleep_time); - sleep_time *= 2; - } - - auto e1 = result["poll"]["answers"][0]; - auto e2 = result["poll"]["answers"][1]; - - std::string e1_text = e1["poll_media"]["text"]; - std::string e2_text = e2["poll_media"]["text"]; - - std::vector<std::string> e1_users = get_users(msg_id, e1["answer_id"]); - std::vector<std::string> e2_users = get_users(msg_id, e2["answer_id"]); - - std::string e1_users_text = e1_users.size() > 0 ? e1_users[0] : ""; - for (unsigned i = 1; i < e1_users.size(); ++i) - e1_users_text += "," + e1_users[i]; - - std::string e2_users_text = e2_users.size() > 0 ? e2_users[0] : ""; - for (unsigned i = 1; i < e2_users.size(); ++i) - e2_users_text += "," + e2_users[i]; - - bool e1_advances = e1_users.size() >= e2_users.size(); - bool e2_advances = e2_users.size() >= e1_users.size(); - - sqlite3_exec(dbc, "begin transaction", 0, 0, 0); - - set_round(e1_text, e1_advances ? current_round_number + 1 : 0); - set_round(e2_text, e2_advances ? current_round_number + 1 : 0); - set_in_poll(e1_text, false); - set_in_poll(e2_text, false); - - sqlite3_stmt *delete_active; - sqlite3_prepare_v2(dbc, - "delete from active_polls where msg_id = ?", - -1, &delete_active, 0); - sqlite3_bind_text(delete_active, 1, msg_id.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(delete_active) != SQLITE_DONE) - ; - sqlite3_finalize(delete_active); - - sqlite3_stmt *insert_complete; - sqlite3_prepare_v2(dbc, - "insert into past_polls (round, entry_1, entry_2, users_1, users_2) " - "values (?, ?, ?, ?, ?)", - -1, &insert_complete, 0); - sqlite3_bind_int(insert_complete, 1, current_round_number); - sqlite3_bind_text(insert_complete, 2, e1_text.c_str(), -1, SQLITE_TRANSIENT); - sqlite3_bind_text(insert_complete, 3, e2_text.c_str(), -1, SQLITE_TRANSIENT); - sqlite3_bind_text(insert_complete, 4, e1_users_text.c_str(), -1, SQLITE_TRANSIENT); - sqlite3_bind_text(insert_complete, 5, e2_users_text.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(insert_complete) != SQLITE_DONE) - ; - sqlite3_finalize(insert_complete); - - sqlite3_exec(dbc, "end transaction", 0, 0, 0); - - } -} - -int seconds_to_midnight() { - int seconds = (post_time_utc - time(0)) % 86400; - return seconds < 0 ? seconds + 86400 : seconds; -} - -void post_poll(std::string e1, std::string e2, int poll_no) { - nlohmann::json body = { - { "poll", { - { "question", { { "text", "Today's Poll #" + std::to_string(poll_no) } } }, - { "answers", { - { { "poll_media", { { "text", e1 } } } }, - { { "poll_media", { { "text", e2 } } } } } }, - { "duration", seconds_to_midnight() / 3600 } } } }; - - std::string msg_id = api("/channels/" + channel_id + "/messages", true, body.dump())["id"]; - - sqlite3_exec(dbc, "begin transaction", 0, 0, 0); - - set_in_poll(e1, true); - set_in_poll(e2, true); - - sqlite3_stmt *insert_active; - sqlite3_prepare_v2(dbc, - "insert into active_polls (msg_id) values (?)", - -1, &insert_active, 0); - sqlite3_bind_text(insert_active, 1, msg_id.c_str(), -1, SQLITE_TRANSIENT); - while (sqlite3_step(insert_active) != SQLITE_DONE) - ; - sqlite3_finalize(insert_active); - - sqlite3_exec(dbc, "end transaction", 0, 0, 0); -} - -void send_message(std::string str) { - nlohmann::json body = { { "content", str } }; - api("/channels/" + channel_id + "/messages", true, body.dump()); -} - -int main() { - - prng.seed(time(0)); - - const char *env = getenv("BOT_TOKEN"); - if (!env) { - std::cerr << "Please set the BOT_TOKEN environment variable." << std::endl; - exit(1); - } - bot_token = std::string(env); - - env = getenv("CHANNEL_ID"); - if (!env) { - std::cerr << "Please set the CHANNEL_ID environment variable." << std::endl; - exit(1); - } - channel_id = std::string(env); - - env = getenv("POLLS_PER_DAY"); - if (!env) { - std::cerr << "Please set the POLLS_PER_DAY environment variable." << std::endl; - exit(1); - } - polls_per_day = atoi(env); - if (polls_per_day <= 0) { - std::cerr << "POLLS_PER_DAY must be a positive integer." << std::endl; - exit(1); - } - - env = getenv("POST_TIME_UTC"); - if (!env) { - std::cerr << "Please set the POST_TIME_UTC environment variable (seconds past midnight)." << std::endl; - exit(1); - } - post_time_utc = atoi(env); - - curl_global_init(CURL_GLOBAL_DEFAULT); - curl_handle = curl_easy_init(); - - sqlite3_open("database.db", &dbc); - - bool have_entries = false; - sqlite3_exec(dbc, - "select 1 from sqlite_master where type = 'table' and name = 'entries'", - [](void *ptr, int, char **, char **) { *(bool *)ptr = true; return 0; }, - &have_entries, 0); - - if (!have_entries) - init_db(); - - load_on_round(); - load_left_for_round(); - - while (true) { - sleep(seconds_to_midnight()); - sleep(2); - - process_all_pending(); - - std::optional<std::string> advanced = {}; - if (left_for_this_round.size() == 1) { - set_round(left_for_this_round[0], current_round_number + 1); - advanced = std::move(left_for_this_round[0]); - left_for_this_round.clear(); - } - - if (left_for_this_round.size() == 0) { - ++current_round_number; - save_on_round(); - load_left_for_round(); - - if (left_for_this_round.size() == 1) { - for (char &c : left_for_this_round[0]) - c = toupper(c); - send_message("# WINNER WINNER\n## " + left_for_this_round[0]); - exit(0); - } - - std::string msg = "# ROUND " + std::to_string(current_round_number) + '\n'; - if (advanced) - msg += "The only entry left in the previous round was \"" + *advanced + "\", so it advanced. "; - msg += "There are " + std::to_string(left_for_this_round.size()) + " entries remaining:"; - std::string msg_backup = msg; - for (int i = left_for_this_round.size() - 1; i >= 0; --i) - msg += "\n* \"" + left_for_this_round[i] + "\""; - if (msg.size() > 2000) { - msg = std::move(msg_backup); - msg.back() = '.'; - } - send_message(msg); - } - - for (int poll_no = 1; poll_no <= polls_per_day && left_for_this_round.size() >= 2; ++poll_no) { - std::string e1 = std::move(left_for_this_round.back()); - left_for_this_round.pop_back(); - std::string e2 = std::move(left_for_this_round.back()); - left_for_this_round.pop_back(); - post_poll(e1, e2, poll_no); - } - } - - return 0; - -} |