AyuGramDesktop/Telegram/SourceFiles/data/components/credits.cpp
2024-08-15 16:18:33 +03:00

122 lines
2.5 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "data/components/credits.h"
#include "api/api_credits.h"
#include "data/data_user.h"
#include "main/main_app_config.h"
#include "main/main_session.h"
namespace Data {
namespace {
constexpr auto kReloadThreshold = 60 * crl::time(1000);
} // namespace
Credits::Credits(not_null<Main::Session*> session)
: _session(session)
, _reload([=] { load(true); }) {
}
Credits::~Credits() = default;
void Credits::apply(const MTPDupdateStarsBalance &data) {
apply(data.vbalance().v);
}
rpl::producer<float64> Credits::rateValue(
not_null<PeerData*> ownedBotOrChannel) {
return rpl::single(
_session->appConfig().get<float64>(
u"stars_usd_withdraw_rate_x1000"_q,
1200) / 1000.);
}
void Credits::load(bool force) {
if (_loader
|| (!force
&& _lastLoaded
&& _lastLoaded + kReloadThreshold > crl::now())) {
return;
}
_loader = std::make_unique<Api::CreditsStatus>(_session->user());
_loader->request({}, [=](Data::CreditsStatusSlice slice) {
_loader = nullptr;
apply(slice.balance);
});
}
bool Credits::loaded() const {
return _lastLoaded != 0;
}
rpl::producer<bool> Credits::loadedValue() const {
if (loaded()) {
return rpl::single(true);
}
return rpl::single(
false
) | rpl::then(_loadedChanges.events() | rpl::map_to(true));
}
uint64 Credits::balance() const {
return _nonLockedBalance.current();
}
rpl::producer<uint64> Credits::balanceValue() const {
return _nonLockedBalance.value();
}
void Credits::updateNonLockedValue() {
_nonLockedBalance = (_balance >= _locked) ? (_balance - _locked) : 0;
}
void Credits::lock(int count) {
Expects(loaded());
Expects(count >= 0);
Expects(_locked + count <= _balance);
_locked += count;
updateNonLockedValue();
}
void Credits::unlock(int count) {
Expects(count >= 0);
Expects(_locked >= count);
_locked -= count;
updateNonLockedValue();
}
void Credits::withdrawLocked(int count) {
Expects(count >= 0);
Expects(_locked >= count);
_locked -= count;
apply(_balance >= count ? (_balance - count) : 0);
invalidate();
}
void Credits::invalidate() {
_reload.call();
}
void Credits::apply(uint64 balance) {
_balance = balance;
updateNonLockedValue();
const auto was = std::exchange(_lastLoaded, crl::now());
if (!was) {
_loadedChanges.fire({});
}
}
} // namespace Data