tdesktop/Telegram/SourceFiles/api/api_blocked_peers.cpp

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/*
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 "api/api_blocked_peers.h"
#include "apiwrap.h"
#include "base/unixtime.h"
#include "data/data_changes.h"
#include "data/data_peer.h"
#include "data/data_peer_id.h"
#include "data/data_session.h"
#include "main/main_session.h"
namespace Api {
namespace {
constexpr auto kBlockedFirstSlice = 16;
constexpr auto kBlockedPerPage = 40;
BlockedPeers::Slice TLToSlice(
const MTPcontacts_Blocked &blocked,
Data::Session &owner) {
const auto create = [&](int count, const QVector<MTPPeerBlocked> &list) {
auto slice = BlockedPeers::Slice();
slice.total = std::max(count, int(list.size()));
slice.list.reserve(list.size());
for (const auto &contact : list) {
contact.match([&](const MTPDpeerBlocked &data) {
slice.list.push_back({
.id = peerFromMTP(data.vpeer_id()),
.date = data.vdate().v,
});
});
}
return slice;
};
return blocked.match([&](const MTPDcontacts_blockedSlice &data) {
owner.processUsers(data.vusers());
owner.processChats(data.vchats());
return create(data.vcount().v, data.vblocked().v);
}, [&](const MTPDcontacts_blocked &data) {
owner.processUsers(data.vusers());
owner.processChats(data.vchats());
return create(0, data.vblocked().v);
});
}
} // namespace
BlockedPeers::BlockedPeers(not_null<ApiWrap*> api)
: _session(&api->session())
, _api(&api->instance()) {
}
bool BlockedPeers::Slice::Item::operator==(const Item &other) const {
return (id == other.id) && (date == other.date);
}
bool BlockedPeers::Slice::Item::operator!=(const Item &other) const {
return !(*this == other);
}
bool BlockedPeers::Slice::operator==(const BlockedPeers::Slice &other) const {
return (total == other.total) && (list == other.list);
}
bool BlockedPeers::Slice::operator!=(const BlockedPeers::Slice &other) const {
return !(*this == other);
}
void BlockedPeers::block(not_null<PeerData*> peer) {
if (peer->isBlocked()) {
_session->changes().peerUpdated(
peer,
Data::PeerUpdate::Flag::IsBlocked);
} else if (_blockRequests.find(peer) == end(_blockRequests)) {
const auto requestId = _api.request(MTPcontacts_Block(
peer->input
)).done([=] {
_blockRequests.erase(peer);
peer->setIsBlocked(true);
if (_slice) {
_slice->list.insert(
_slice->list.begin(),
{ peer->id, base::unixtime::now() });
++_slice->total;
_changes.fire_copy(*_slice);
}
}).fail([=] {
_blockRequests.erase(peer);
}).send();
_blockRequests.emplace(peer, requestId);
}
}
void BlockedPeers::unblock(not_null<PeerData*> peer, Fn<void()> onDone) {
if (!peer->isBlocked()) {
_session->changes().peerUpdated(
peer,
Data::PeerUpdate::Flag::IsBlocked);
return;
} else if (_blockRequests.find(peer) != end(_blockRequests)) {
return;
}
const auto requestId = _api.request(MTPcontacts_Unblock(
peer->input
)).done([=] {
_blockRequests.erase(peer);
peer->setIsBlocked(false);
if (_slice) {
auto &list = _slice->list;
for (auto i = list.begin(); i != list.end(); ++i) {
if (i->id == peer->id) {
list.erase(i);
break;
}
}
if (_slice->total > list.size()) {
--_slice->total;
}
_changes.fire_copy(*_slice);
}
if (onDone) {
onDone();
}
}).fail([=] {
_blockRequests.erase(peer);
}).send();
_blockRequests.emplace(peer, requestId);
}
void BlockedPeers::reload() {
if (_requestId) {
return;
}
request(0, [=](Slice &&slice) {
if (!_slice || *_slice != slice) {
_slice = slice;
_changes.fire(std::move(slice));
}
});
}
auto BlockedPeers::slice() -> rpl::producer<BlockedPeers::Slice> {
if (!_slice) {
reload();
}
return _slice
? _changes.events_starting_with_copy(*_slice)
: (_changes.events() | rpl::type_erased());
}
void BlockedPeers::request(int offset, Fn<void(BlockedPeers::Slice)> onDone) {
if (_requestId) {
return;
}
_requestId = _api.request(MTPcontacts_GetBlocked(
MTP_int(offset),
MTP_int(offset ? kBlockedPerPage : kBlockedFirstSlice)
)).done([=](const MTPcontacts_Blocked &result) {
_requestId = 0;
onDone(TLToSlice(result, _session->data()));
}).fail([=] {
_requestId = 0;
}).send();
}
} // namespace Api