152 lines
3.7 KiB
C++
152 lines
3.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "storage/storage_cloud_song_cover.h"
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#include "data/data_cloud_file.h"
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#include "data/data_document.h"
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#include "data/data_file_origin.h"
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#include "data/data_session.h"
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#include "main/main_session.h"
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#include "storage/file_download.h"
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#include <QtCore/QJsonArray>
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#include <QtCore/QJsonDocument>
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#include <QtCore/QJsonObject>
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#include <QtCore/QJsonValue>
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namespace Storage::CloudSongCover {
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namespace {
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constexpr auto kMaxResponseSize = 1024 * 1024;
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constexpr auto kDefaultCoverSize = 100;
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struct Responce {
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const QString artworkUrl;
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const int size;
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};
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auto Location(const QString &url) {
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return DownloadLocation{ PlainUrlLocation{ url } };
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}
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auto JsonUrl(not_null<SongData*> song) {
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return QString("https://itunes.apple.com/search?term=" \
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"%1 %2&entity=song&limit=4").arg(song->performer).arg(song->title);
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}
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// Dummy JSON responce.
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// {
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// "resultCount": 2,
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// "results": [
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// {
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// "artworkUrl100": ""
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// },
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// {
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// "artworkUrl100": ""
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// }
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// ]
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// }
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std::optional<Responce> ParseResponce(const QByteArray &response) {
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if (response.size() >= kMaxResponseSize) {
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return std::nullopt;
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}
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auto error = QJsonParseError{ 0, QJsonParseError::NoError };
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const auto document = QJsonDocument::fromJson(response, &error);
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const auto log = [](const QString &message) {
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DEBUG_LOG(("Parse Artwork JSON Error: %1.").arg(message));
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};
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if (error.error != QJsonParseError::NoError) {
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log(error.errorString());
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return std::nullopt;
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} else if (!document.isObject()) {
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log("not an object received in JSON");
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return std::nullopt;
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}
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const auto results = document.object().value("results");
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if (!results.isArray()) {
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log("'results' field not found");
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return std::nullopt;
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}
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const auto resultsArray = results.toArray();
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if (resultsArray.empty()) {
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return std::nullopt;
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}
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const auto artworkUrl = resultsArray.first().toObject()
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.value("artworkUrl100").toString();
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if (artworkUrl.isEmpty()) {
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log("'artworkUrl100' field is empty");
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return std::nullopt;
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}
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return Responce{ artworkUrl, kDefaultCoverSize };
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}
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void LoadAndApplyThumbnail(
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not_null<DocumentData*> document,
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const Responce &responce) {
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const auto size = responce.size;
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const auto imageWithLocation = ImageWithLocation{
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.location = ImageLocation(Location(responce.artworkUrl), size, size)
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};
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document->updateThumbnails(
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QByteArray(),
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imageWithLocation,
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ImageWithLocation{ .location = ImageLocation() });
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document->loadThumbnail(Data::FileOrigin());
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}
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}
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void LoadThumbnailFromExternal(not_null<DocumentData*> document) {
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const auto songData = document->song();
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if (!songData
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|| songData->performer.isEmpty()
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|| songData->title.isEmpty()) {
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return;
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}
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const auto &size = kDefaultCoverSize;
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const auto jsonLocation = ImageWithLocation{
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.location = ImageLocation(Location(JsonUrl(songData)), size, size)
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};
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const auto jsonCloudFile = std::make_shared<Data::CloudFile>();
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Data::UpdateCloudFile(
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*jsonCloudFile,
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jsonLocation,
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document->owner().cache(),
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0, // Cache tag.
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nullptr,
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nullptr);
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auto done = [=](const QByteArray &result) {
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if (!jsonCloudFile) {
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return;
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}
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if (const auto responce = ParseResponce(result)) {
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LoadAndApplyThumbnail(document, *responce);
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}
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};
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Data::LoadCloudFile(
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&document->session(),
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*jsonCloudFile,
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Data::FileOrigin(),
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LoadFromCloudOrLocal,
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true,
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0,
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[] { return true; },
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std::move(done));
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}
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} // namespace Storage::CloudSongCover
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