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#include "common.hh"
#include <sstream>
#include "config.hh"
#include "event.hh"
#include "event_utils.hh"
#include "fsutils.hh"
#include "sender_client.hh"
#include "sqlite3_db.hh"
namespace stuff {
namespace {
class EventUtilsImpl : public EventUtils {
public:
EventUtilsImpl(const std::string& channel,
std::function<void(const std::string&)> error_cb,
Config* config, SenderClient* sender)
: channel_(channel), error_cb_(error_cb), cfg_(config),
sender_(sender) {
}
std::unique_ptr<Event> create(
const std::string& name, time_t start) override {
if (!db_ && !open()) return nullptr;
return Event::create(db_, name, start);
}
void created(Event* event) override {
if (!event) return;
auto next_event = Event::next(db_);
if (next_event->id() == event->id()) {
signal_event(next_event);
}
}
std::vector<std::unique_ptr<Event>> all() override {
if (!db_ && !open()) return std::vector<std::unique_ptr<Event>>();
return Event::all(db_);
}
std::unique_ptr<Event> next() override {
if (!db_ && !open()) return nullptr;
return Event::next(db_);
}
bool good() const override {
return db_.get() != nullptr;
}
void cancel(Event* event, size_t index) override {
if (!event) return;
event->remove();
if (index == 0) {
std::ostringstream ss;
ss << "Event canceled: " << event->name() << " @ "
<< format_date(event->start());
signal_channel(ss.str());
}
}
void updated(Event* event, int64_t was_first) override {
auto next_event = Event::next(db_);
if (next_event->id() != was_first ||
next_event->id() == event->id()) {
signal_event(next_event);
}
}
void going(Event* event, bool going, const std::string& user,
const std::string& owner) override {
auto next_event = Event::next(db_);
if (next_event->id() == event->id()) {
std::string extra;
if (user != owner) {
extra = " says " + owner;
}
if (going) {
signal_channel(user + " will be attending " +
event->name() + extra);
} else {
signal_channel(user + " will not be attending " +
event->name() + extra);
}
}
}
const std::string& channel() const override {
return channel_;
}
private:
void signal_event(const std::unique_ptr<Event>& event) {
std::ostringstream ss;
ss << event->name() << " @ " << format_date(event->start()) << std::endl;
if (!event->text().empty()) {
ss << event->text() << std::endl;
}
ss << std::endl;
ss << "Use /event going to join the event" << std::endl;
signal_channel(ss.str());
}
void signal_channel(const std::string& str) {
if (!sender_) return;
sender_->send(channel_, str);
}
void error(const std::string& message) {
if (error_cb_) {
error_cb_(message);
}
}
bool open() {
std::string tmp = channel_;
for (auto it = tmp.begin(); it != tmp.end(); ++it) {
if (!((*it >= 'a' && *it <= 'z') ||
(*it >= 'A' && *it <= 'Z') ||
(*it >= '0' && *it <= '9') ||
*it == '-' || *it == '_' || *it == '.')) {
*it = '.';
}
}
std::string path;
if (cfg_) path = cfg_->get("db_path", LOCALSTATEDIR);
if (path.empty()) path = ".";
if (!mkdir_p(path)) {
error("Unable to create database directory");
return false;
}
auto db = SQLite3::open(path + "/" + tmp + ".db");
if (!db || db->bad()) {
error("Unable to open database");
return false;
} else if (!Event::setup(db.get())) {
error("Unable to setup database");
return false;
}
db_ = std::move(db);
return true;
}
std::string channel_;
std::function<void(const std::string&)> error_cb_;
std::shared_ptr<DB> db_;
Config* cfg_;
SenderClient* sender_;
};
} // namespace
EventUtils::EventUtils() {
}
EventUtils::~EventUtils() {
}
std::unique_ptr<EventUtils> EventUtils::create(
const std::string& channel,
std::function<void(const std::string&)> error_cb,
Config* config,
SenderClient* sender) {
std::unique_ptr<EventUtils> utils(
new EventUtilsImpl(channel, error_cb, config, sender));
return utils;
}
const double EventUtils::ONE_DAY_IN_SEC = 24.0 * 60.0 * 60.0;
const double EventUtils::ONE_WEEK_IN_SEC = ONE_DAY_IN_SEC * 7.0;
// It's OK that we ignore leap years here
const double EventUtils::ONE_YEAR_IN_SEC = 365 * ONE_DAY_IN_SEC;
std::string EventUtils::format_date(time_t date) {
time_t now = time(NULL);
struct tm _t;
struct tm* t = localtime_r(&date, &_t);
double diff = difftime(date, now);
char tmp[100];
if (diff <= ONE_DAY_IN_SEC) {
// Same day, just show time
strftime(tmp, sizeof(tmp), "%H:%M", t);
} else if (diff <= ONE_WEEK_IN_SEC) {
// Inside a week, show day and time
strftime(tmp, sizeof(tmp), "%A %H:%M", t);
} else if (diff <= ONE_YEAR_IN_SEC / 2.0) {
// Inside a year, show date, day and time
strftime(tmp, sizeof(tmp), "%A %d/%m %H:%M", t);
} else {
strftime(tmp, sizeof(tmp), "%Y-%m-%d %H:%M", t);
}
return tmp;
}
} // namespace stuff
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