tdesktop/Telegram/SourceFiles/export/output/export_output_json.cpp

/*
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 "export/output/export_output_json.h"

#include "export/output/export_output_result.h"
#include "export/data/export_data_types.h"
#include "core/utils.h"

#include <QtCore/QDateTime>

namespace Export {
namespace Output {
namespace {

using Context = details::JsonContext;

QByteArray SerializeString(const QByteArray &value) {
	const auto size = value.size();
	const auto begin = value.data();
	const auto end = begin + size;

	auto result = QByteArray();
	result.reserve(2 + size * 4);
	result.append('"');
	for (auto p = begin; p != end; ++p) {
		const auto ch = *p;
		if (ch == '\n') {
			result.append("\\n", 2);
		} else if (ch == '\r') {
			result.append("\\r", 2);
		} else if (ch == '\t') {
			result.append("\\t", 2);
		} else if (ch == '"') {
			result.append("\\\"", 2);
		} else if (ch == '\\') {
			result.append("\\\\", 2);
		} else if (ch >= 0 && ch < 32) {
			result.append("\\x", 2).append('0' + (ch >> 4));
			const auto left = (ch & 0x0F);
			if (left >= 10) {
				result.append('A' + (left - 10));
			} else {
				result.append('0' + left);
			}
		} else if (ch == 0xE2 && (p + 2 < end) && *(p + 1) == 0x80) {
			if (*(p + 2) == 0xA8) { // Line separator.
				result.append("\\u2028", 6);
			} else if (*(p + 2) == 0xA9) { // Paragraph separator.
				result.append("\\u2029", 6);
			} else {
				result.append(ch);
			}
		} else {
			result.append(ch);
		}
	}
	result.append('"');
	return result;
}

QByteArray SerializeDate(TimeId date) {
	return SerializeString(
		QDateTime::fromTime_t(date).toString(Qt::ISODate).toUtf8());
}

QByteArray StringAllowEmpty(const Data::Utf8String &data) {
	return data.isEmpty() ? data : SerializeString(data);
}

QByteArray StringAllowNull(const Data::Utf8String &data) {
	return data.isEmpty() ? QByteArray("null") : SerializeString(data);
}

QByteArray Indentation(int size) {
	return QByteArray(size, ' ');
}

QByteArray Indentation(const Context &context) {
	return Indentation(context.nesting.size());
}

QByteArray SerializeObject(
		Context &context,
		const std::vector<std::pair<QByteArray, QByteArray>> &values) {
	const auto indent = Indentation(context);

	context.nesting.push_back(Context::kObject);
	const auto guard = gsl::finally([&] { context.nesting.pop_back(); });
	const auto next = '\n' + Indentation(context);

	auto first = true;
	auto result = QByteArray();
	result.append('{');
	for (const auto &[key, value] : values) {
		if (value.isEmpty()) {
			continue;
		}
		if (first) {
			first = false;
		} else {
			result.append(',');
		}
		result.append(next).append(SerializeString(key)).append(": ", 2);
		result.append(value);
	}
	result.append('\n').append(indent).append("}");
	return result;
}

QByteArray SerializeArray(
		Context &context,
		const std::vector<QByteArray> &values) {
	const auto indent = Indentation(context.nesting.size());
	const auto next = '\n' + Indentation(context.nesting.size() + 1);

	auto first = true;
	auto result = QByteArray();
	result.append('[');
	for (const auto &value : values) {
		if (first) {
			first = false;
		} else {
			result.append(',');
		}
		result.append(next).append(value);
	}
	result.append('\n').append(indent).append("]");
	return result;
}

Data::Utf8String FormatUsername(const Data::Utf8String &username) {
	return username.isEmpty() ? username : ('@' + username);
}

QByteArray FormatFilePath(const Data::File &file) {
	return file.relativePath.toUtf8();
}

QByteArray SerializeMessage(
		Context &context,
		const Data::Message &message,
		const std::map<Data::PeerId, Data::Peer> &peers,
		const QString &internalLinksDomain) {
	using namespace Data;

	if (message.media.content.is<UnsupportedMedia>()) {
		return SerializeObject(context, {
			{ "id", NumberToString(message.id) },
			{ "type", SerializeString("unsupported") }
		});
	}

	const auto peer = [&](PeerId peerId) -> const Peer& {
		if (const auto i = peers.find(peerId); i != end(peers)) {
			return i->second;
		}
		static auto empty = Peer{ User() };
		return empty;
	};
	const auto user = [&](int32 userId) -> const User& {
		if (const auto result = peer(UserPeerId(userId)).user()) {
			return *result;
		}
		static auto empty = User();
		return empty;
	};
	const auto chat = [&](int32 chatId) -> const Chat& {
		if (const auto result = peer(ChatPeerId(chatId)).chat()) {
			return *result;
		}
		static auto empty = Chat();
		return empty;
	};

	auto values = std::vector<std::pair<QByteArray, QByteArray>>{
	{ "id", NumberToString(message.id) },
	{
		"type",
		SerializeString(message.action.content ? "service" : "message")
	},
	{ "date", SerializeDate(message.date) },
	{ "edited", SerializeDate(message.edited) },
	};

	context.nesting.push_back(Context::kObject);
	const auto serialized = [&] {
		context.nesting.pop_back();
		return SerializeObject(context, values);
	};

	const auto pushBare = [&](
			const QByteArray &key,
			const QByteArray &value) {
		if (!value.isEmpty()) {
			values.emplace_back(key, value);
		}
	};
	const auto push = [&](const QByteArray &key, const auto &value) {
		if constexpr (std::is_arithmetic_v<std::decay_t<decltype(value)>>) {
			pushBare(key, NumberToString(value));
		} else {
			const auto wrapped = QByteArray(value);
			if (!wrapped.isEmpty()) {
				pushBare(key, SerializeString(wrapped));
			}
		}
	};
	const auto wrapPeerName = [&](PeerId peerId) {
		return StringAllowNull(peer(peerId).name());
	};
	const auto wrapUserName = [&](int32 userId) {
		return StringAllowNull(user(userId).name());
	};
	const auto pushFrom = [&](const QByteArray &label = "from") {
		if (message.fromId) {
			pushBare(label, wrapUserName(message.fromId));
		}
	};
	const auto pushReplyToMsgId = [&](
			const QByteArray &label = "reply_to_message_id") {
		if (message.replyToMsgId) {
			push(label, message.replyToMsgId);
		}
	};
	const auto pushUserNames = [&](
			const std::vector<int32> &data,
			const QByteArray &label = "members") {
		auto list = std::vector<QByteArray>();
		for (const auto userId : data) {
			list.push_back(wrapUserName(userId));
		}
		pushBare(label, SerializeArray(context, list));
	};
	const auto pushActor = [&] {
		pushFrom("actor");
	};
	const auto pushAction = [&](const QByteArray &action) {
		push("action", action);
	};
	const auto pushTTL = [&](
			const QByteArray &label = "self_destruct_period_seconds") {
		if (const auto ttl = message.media.ttl) {
			push(label, ttl);
		}
	};

	using SkipReason = Data::File::SkipReason;
	const auto pushPath = [&](
			const Data::File &file,
			const QByteArray &label,
			const QByteArray &name = QByteArray()) {
		Expects(!file.relativePath.isEmpty()
			|| file.skipReason != SkipReason::None);

		push(label, [&]() -> QByteArray {
			const auto pre = name.isEmpty() ? QByteArray() : name + ' ';
			switch (file.skipReason) {
			case SkipReason::Unavailable: return pre + "(file unavailable)";
			case SkipReason::FileSize: return pre + "(file too large)";
			case SkipReason::FileType: return pre + "(file skipped)";
			case SkipReason::None: return FormatFilePath(file);
			}
			Unexpected("Skip reason while writing file path.");
		}());
	};
	const auto pushPhoto = [&](const Image &image) {
		pushPath(image.file, "photo");
		if (image.width && image.height) {
			push("width", image.width);
			push("height", image.height);
		}
	};

	message.action.content.match([&](const ActionChatCreate &data) {
		pushActor();
		pushAction("create_group");
		push("title", data.title);
		pushUserNames(data.userIds);
	}, [&](const ActionChatEditTitle &data) {
		pushActor();
		pushAction("edit_group_title");
		push("title", data.title);
	}, [&](const ActionChatEditPhoto &data) {
		pushActor();
		pushAction("edit_group_photo");
		pushPhoto(data.photo.image);
	}, [&](const ActionChatDeletePhoto &data) {
		pushActor();
		pushAction("delete_group_photo");
	}, [&](const ActionChatAddUser &data) {
		pushActor();
		pushAction("invite_members");
		pushUserNames(data.userIds);
	}, [&](const ActionChatDeleteUser &data) {
		pushActor();
		pushAction("remove_members");
		pushUserNames({ data.userId });
	}, [&](const ActionChatJoinedByLink &data) {
		pushActor();
		pushAction("join_group_by_link");
		pushBare("inviter", wrapUserName(data.inviterId));
	}, [&](const ActionChannelCreate &data) {
		pushActor();
		pushAction("create_channel");
		push("title", data.title);
	}, [&](const ActionChatMigrateTo &data) {
		pushActor();
		pushAction("migrate_to_supergroup");
	}, [&](const ActionChannelMigrateFrom &data) {
		pushActor();
		pushAction("migrate_from_group");
		push("title", data.title);
	}, [&](const ActionPinMessage &data) {
		pushActor();
		pushAction("pin_message");
		pushReplyToMsgId("message_id");
	}, [&](const ActionHistoryClear &data) {
		pushActor();
		pushAction("clear_history");
	}, [&](const ActionGameScore &data) {
		pushActor();
		pushAction("score_in_game");
		pushReplyToMsgId("game_message_id");
		push("score", data.score);
	}, [&](const ActionPaymentSent &data) {
		pushAction("send_payment");
		push("amount", data.amount);
		push("currency", data.currency);
		pushReplyToMsgId("invoice_message_id");
	}, [&](const ActionPhoneCall &data) {
		pushActor();
		pushAction("phone_call");
		if (data.duration) {
			push("duration_seconds", data.duration);
		}
		using Reason = ActionPhoneCall::DiscardReason;
		push("discard_reason", [&] {
			switch (data.discardReason) {
			case Reason::Busy: return "busy";
			case Reason::Disconnect: return "disconnect";
			case Reason::Hangup: return "hangup";
			case Reason::Missed: return "missed";
			}
			return "";
		}());
	}, [&](const ActionScreenshotTaken &data) {
		pushActor();
		pushAction("take_screenshot");
	}, [&](const ActionCustomAction &data) {
		pushActor();
		push("information_text", data.message);
	}, [&](const ActionBotAllowed &data) {
		pushAction("allow_sending_messages");
		push("reason_domain", data.domain);
	}, [&](const ActionSecureValuesSent &data) {
		pushAction("send_passport_values");
		auto list = std::vector<QByteArray>();
		for (const auto type : data.types) {
			list.push_back(SerializeString([&] {
				using Type = ActionSecureValuesSent::Type;
				switch (type) {
				case Type::PersonalDetails: return "personal_details";
				case Type::Passport: return "passport";
				case Type::DriverLicense: return "driver_license";
				case Type::IdentityCard: return "identity_card";
				case Type::InternalPassport: return "internal_passport";
				case Type::Address: return "address_information";
				case Type::UtilityBill: return "utility_bill";
				case Type::BankStatement: return "bank_statement";
				case Type::RentalAgreement: return "rental_agreement";
				case Type::PassportRegistration:
					return "passport_registration";
				case Type::TemporaryRegistration:
					return "temporary_registration";
				case Type::Phone: return "phone_number";
				case Type::Email: return "email";
				}
				return "";
			}()));
		}
		pushBare("values", SerializeArray(context, list));
	}, [](const base::none_type &) {});

	if (!message.action.content) {
		pushFrom();
		push("author", message.signature);
		if (message.forwardedFromId) {
			pushBare(
				"forwarded_from",
				wrapPeerName(message.forwardedFromId));
		}
		pushReplyToMsgId();
		if (message.viaBotId) {
			const auto username = FormatUsername(
				user(message.viaBotId).username);
			if (!username.isEmpty()) {
				push("via_bot", username);
			}
		}
	}

	message.media.content.match([&](const Photo &photo) {
		pushPhoto(photo.image);
		pushTTL();
	}, [&](const Document &data) {
		pushPath(data.file, "file");
		const auto pushType = [&](const QByteArray &value) {
			push("media_type", value);
		};
		if (data.isSticker) {
			pushType("sticker");
			push("sticker_emoji", data.stickerEmoji);
		} else if (data.isVideoMessage) {
			pushType("video_message");
		} else if (data.isVoiceMessage) {
			pushType("voice_message");
		} else if (data.isAnimated) {
			pushType("animation");
		} else if (data.isVideoFile) {
			pushType("video_file");
		} else if (data.isAudioFile) {
			pushType("audio_file");
			push("performer", data.songPerformer);
			push("title", data.songTitle);
		}
		if (!data.isSticker) {
			push("mime_type", data.mime);
		}
		if (data.duration) {
			push("duration_seconds", data.duration);
		}
		if (data.width && data.height) {
			push("width", data.width);
			push("height", data.height);
		}
		pushTTL();
	}, [&](const ContactInfo &data) {
		pushBare("contact_information", SerializeObject(context, {
			{ "first_name", SerializeString(data.firstName) },
			{ "last_name", SerializeString(data.lastName) },
			{
				"phone_number",
				SerializeString(FormatPhoneNumber(data.phoneNumber))
			},
		}));
	}, [&](const GeoPoint &data) {
		pushBare(
			"location_information",
			data.valid ? SerializeObject(context, {
			{ "latitude", NumberToString(data.latitude) },
			{ "longitude", NumberToString(data.longitude) },
			}) : QByteArray("null"));
		pushTTL("live_location_period_seconds");
	}, [&](const Venue &data) {
		push("place_name", data.title);
		push("address", data.address);
		if (data.point.valid) {
			pushBare("location_information", SerializeObject(context, {
				{ "latitude", NumberToString(data.point.latitude) },
				{ "longitude", NumberToString(data.point.longitude) },
			}));
		}
	}, [&](const Game &data) {
		push("game_title", data.title);
		push("game_description", data.description);
		if (data.botId != 0 && !data.shortName.isEmpty()) {
			const auto bot = user(data.botId);
			if (bot.isBot && !bot.username.isEmpty()) {
				push("game_link", internalLinksDomain.toUtf8()
					+ bot.username
					+ "?game="
					+ data.shortName);
			}
		}
	}, [&](const Invoice &data) {
		push("invoice_information", SerializeObject(context, {
			{ "title", SerializeString(data.title) },
			{ "description", SerializeString(data.description) },
			{ "amount", NumberToString(data.amount) },
			{ "currency", SerializeString(data.currency) },
			{ "receipt_message_id", (data.receiptMsgId
				? NumberToString(data.receiptMsgId)
				: QByteArray()) }
		}));
	}, [](const UnsupportedMedia &data) {
		Unexpected("Unsupported message.");
	}, [](const base::none_type &) {});

	push("text", message.text);

	return serialized();
}

} // namespace

Result JsonWriter::start(const Settings &settings, Stats *stats) {
	Expects(_output == nullptr);
	Expects(settings.path.endsWith('/'));

	_settings = base::duplicate(settings);
	_stats = stats;
	_output = fileWithRelativePath(mainFileRelativePath());

	return _output->writeBlock(pushNesting(Context::kObject));
}

QByteArray JsonWriter::pushNesting(Context::Type type) {
	Expects(_output != nullptr);

	_context.nesting.push_back(type);
	_currentNestingHadItem = false;
	return (type == Context::kObject ? "{" : "[");
}

QByteArray JsonWriter::prepareObjectItemStart(const QByteArray &key) {
	const auto guard = gsl::finally([&] { _currentNestingHadItem = true; });
	return (_currentNestingHadItem ? ",\n" : "\n")
		+ Indentation(_context)
		+ SerializeString(key)
		+ ": ";
}

QByteArray JsonWriter::prepareArrayItemStart() {
	const auto guard = gsl::finally([&] { _currentNestingHadItem = true; });
	return (_currentNestingHadItem ? ",\n" : "\n") + Indentation(_context);
}

QByteArray JsonWriter::popNesting() {
	Expects(_output != nullptr);
	Expects(!_context.nesting.empty());

	const auto type = Context::Type(_context.nesting.back());
	_context.nesting.pop_back();

	_currentNestingHadItem = true;
	return '\n'
		+ Indentation(_context)
		+ (type == Context::kObject ? '}' : ']');
}

Result JsonWriter::writePersonal(const Data::PersonalInfo &data) {
	Expects(_output != nullptr);

	const auto &info = data.user.info;
	return _output->writeBlock(
		prepareObjectItemStart("personal_information")
		+ SerializeObject(_context, {
		{ "first_name", SerializeString(info.firstName) },
		{ "last_name", SerializeString(info.lastName) },
		{
			"phone_number",
			SerializeString(Data::FormatPhoneNumber(info.phoneNumber))
		},
		{
			"username",
			(!data.user.username.isEmpty()
				? SerializeString(FormatUsername(data.user.username))
				: QByteArray())
		},
		{
			"bio",
			(!data.bio.isEmpty()
				? SerializeString(data.bio)
				: QByteArray())
		},
	}));
}

Result JsonWriter::writeUserpicsStart(const Data::UserpicsInfo &data) {
	Expects(_output != nullptr);

	auto block = prepareObjectItemStart("personal_photos");
	return _output->writeBlock(block + pushNesting(Context::kArray));
}

Result JsonWriter::writeUserpicsSlice(const Data::UserpicsSlice &data) {
	Expects(_output != nullptr);
	Expects(!data.list.empty());

	auto block = QByteArray();
	for (const auto &userpic : data.list) {
		block.append(prepareArrayItemStart());
		block.append(SerializeObject(_context, {
			{
				"date",
				userpic.date ? SerializeDate(userpic.date) : QByteArray()
			},
			{
				"photo",
				SerializeString(userpic.image.file.relativePath.isEmpty()
					? QByteArray("(file unavailable)")
						: FormatFilePath(userpic.image.file))
			},
		}));
	}
	return _output->writeBlock(block);
}

Result JsonWriter::writeUserpicsEnd() {
	Expects(_output != nullptr);

	return _output->writeBlock(popNesting());
}

Result JsonWriter::writeContactsList(const Data::ContactsList &data) {
	Expects(_output != nullptr);

	if (const auto result = writeSavedContacts(data); !result) {
		return result;
	} else if (const auto result = writeFrequentContacts(data); !result) {
		return result;
	}
	return Result::Success();
}

Result JsonWriter::writeSavedContacts(const Data::ContactsList &data) {
	Expects(_output != nullptr);

	auto block = prepareObjectItemStart("contacts");
	block.append(pushNesting(Context::kArray));
	for (const auto index : Data::SortedContactsIndices(data)) {
		const auto &contact = data.list[index];
		block.append(prepareArrayItemStart());

		if (contact.firstName.isEmpty()
			&& contact.lastName.isEmpty()
			&& contact.phoneNumber.isEmpty()) {
			block.append(SerializeObject(_context, {
				{ "date", SerializeDate(contact.date) }
			}));
		} else {
			block.append(SerializeObject(_context, {
				{ "first_name", SerializeString(contact.firstName) },
				{ "last_name", SerializeString(contact.lastName) },
				{
					"phone_number",
					SerializeString(
						Data::FormatPhoneNumber(contact.phoneNumber))
				},
				{ "date", SerializeDate(contact.date) }
			}));
		}
	}
	return _output->writeBlock(block + popNesting());
}

Result JsonWriter::writeFrequentContacts(const Data::ContactsList &data) {
	Expects(_output != nullptr);

	auto block = prepareObjectItemStart("frequent_contacts");
	block.append(pushNesting(Context::kArray));
	const auto writeList = [&](
			const std::vector<Data::TopPeer> &peers,
			Data::Utf8String category) {
		for (const auto &top : peers) {
			const auto type = [&] {
				if (const auto chat = top.peer.chat()) {
					return chat->username.isEmpty()
						? (chat->broadcast
							? "private_channel"
							: "private_group")
						: (chat->broadcast
							? "public_channel"
							: "public_group");
				}
				return "user";
			}();
			block.append(prepareArrayItemStart());
			block.append(SerializeObject(_context, {
				{ "category", SerializeString(category) },
				{ "type", SerializeString(type) },
				{ "name",  StringAllowNull(top.peer.name()) },
				{ "rating", Data::NumberToString(top.rating) },
			}));
		}
	};
	writeList(data.correspondents, "correspondents");
	writeList(data.inlineBots, "inline_bots");
	writeList(data.phoneCalls, "calls");
	return _output->writeBlock(block + popNesting());
}

Result JsonWriter::writeSessionsList(const Data::SessionsList &data) {
	Expects(_output != nullptr);

	auto block = prepareObjectItemStart("sessions");
	block.append(pushNesting(Context::kArray));
	for (const auto &session : data.list) {
		block.append(prepareArrayItemStart());
		block.append(SerializeObject(_context, {
			{ "last_active", SerializeDate(session.lastActive) },
			{ "last_ip", SerializeString(session.ip) },
			{ "last_country", SerializeString(session.country) },
			{ "last_region", SerializeString(session.region) },
			{
				"application_name",
				StringAllowNull(session.applicationName)
			},
			{
				"application_version",
				StringAllowEmpty(session.applicationVersion)
			},
			{ "device_model", SerializeString(session.deviceModel) },
			{ "platform", SerializeString(session.platform) },
			{ "system_version", SerializeString(session.systemVersion) },
			{ "created", SerializeDate(session.created) },
		}));
	}
	return _output->writeBlock(block + popNesting());
}

Result JsonWriter::writeDialogsStart(const Data::DialogsInfo &data) {
	return writeChatsStart(data, "chats");
}

Result JsonWriter::writeDialogStart(const Data::DialogInfo &data) {
	return writeChatStart(data);
}

Result JsonWriter::writeDialogSlice(const Data::MessagesSlice &data) {
	return writeChatSlice(data);
}

Result JsonWriter::writeDialogEnd() {
	return writeChatEnd();
}

Result JsonWriter::writeDialogsEnd() {
	return writeChatsEnd();
}

Result JsonWriter::writeLeftChannelsStart(const Data::DialogsInfo &data) {
	return writeChatsStart(data, "left_chats");
}

Result JsonWriter::writeLeftChannelStart(const Data::DialogInfo &data) {
	return writeChatStart(data);
}

Result JsonWriter::writeLeftChannelSlice(const Data::MessagesSlice &data) {
	return writeChatSlice(data);
}

Result JsonWriter::writeLeftChannelEnd() {
	return writeChatEnd();
}

Result JsonWriter::writeLeftChannelsEnd() {
	return writeChatsEnd();
}

Result JsonWriter::writeChatsStart(
		const Data::DialogsInfo &data,
		const QByteArray &listName) {
	Expects(_output != nullptr);

	auto block = prepareObjectItemStart(listName);
	return _output->writeBlock(block + pushNesting(Context::kArray));
}

Result JsonWriter::writeChatStart(const Data::DialogInfo &data) {
	Expects(_output != nullptr);

	using Type = Data::DialogInfo::Type;
	const auto TypeString = [](Type type) {
		switch (type) {
		case Type::Unknown: return "";
		case Type::Personal: return "personal_chat";
		case Type::Bot: return "bot_chat";
		case Type::PrivateGroup: return "private_group";
		case Type::PublicGroup: return "public_group";
		case Type::PrivateChannel: return "private_channel";
		case Type::PublicChannel: return "public_channel";
		}
		Unexpected("Dialog type in TypeString.");
	};

	auto block = prepareArrayItemStart();
	block.append(pushNesting(Context::kObject));
	block.append(prepareObjectItemStart("name")
		+ StringAllowNull(data.name));
	block.append(prepareObjectItemStart("type")
		+ StringAllowNull(TypeString(data.type)));
	block.append(prepareObjectItemStart("messages"));
	block.append(pushNesting(Context::kArray));
	return _output->writeBlock(block);
}

Result JsonWriter::writeChatSlice(const Data::MessagesSlice &data) {
	Expects(_output != nullptr);

	auto block = QByteArray();
	for (const auto &message : data.list) {
		block.append(prepareArrayItemStart() + SerializeMessage(
			_context,
			message,
			data.peers,
			_settings.internalLinksDomain));
	}
	return _output->writeBlock(block);
}

Result JsonWriter::writeChatEnd() {
	Expects(_output != nullptr);

	auto block = popNesting();
	return _output->writeBlock(block + popNesting());
}

Result JsonWriter::writeChatsEnd() {
	Expects(_output != nullptr);

	return _output->writeBlock(popNesting());
}

Result JsonWriter::finish() {
	Expects(_output != nullptr);

	auto block = popNesting();
	Assert(_context.nesting.empty());
	return _output->writeBlock(block);
}

QString JsonWriter::mainFilePath() {
	return pathWithRelativePath(mainFileRelativePath());
}

QString JsonWriter::mainFileRelativePath() const {
	return "result.json";
}

QString JsonWriter::pathWithRelativePath(const QString &path) const {
	return _settings.path + path;
}

std::unique_ptr<File> JsonWriter::fileWithRelativePath(
		const QString &path) const {
	return std::make_unique<File>(pathWithRelativePath(path), _stats);
}

} // namespace Output
} // namespace Export