#include "testenv.h"
#include "fixtures.h"
#include "nettest.h"

#include "launcherpaths.h"
#include "localization.h"
#include "seasonalbuildservice.h"

#include <QJsonArray>
#include <QSignalSpy>

namespace {
const QUrl kBase(QStringLiteral("https://launcher-builds.galeonworx.com"));
const QString kIndex = QStringLiteral("https://launcher-builds.galeonworx.com/index.json");
}

class TestSeasonalBuildService : public QObject
{
    Q_OBJECT

    FakeInternet m_net;

private slots:
    void initTestCase() { BILAUNCHER_START_FAKE_INTERNET(m_net); }

    void init()
    {
        TestEnv::resetLauncherRoot();
        m_net.reset();
    }

    void withoutBaseUrlFails()
    {
        SeasonalBuildService service;
        CallResult r;
        service.ensureLoaded(r.callback());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 5000);
        QVERIFY(!r.ok);
        QCOMPARE(r.warning, Loc::text("seasonal.error.noServerUrl"));
        QCOMPARE(service.lastError(), Loc::text("seasonal.error.noServerUrl"));
        QVERIFY(m_net.requests().isEmpty());
    }

    void parsesValidatesAndSorts()
    {
        m_net.route(kIndex, FakeResponse::json(Fixtures::read("seasonal/index.json")));
        SeasonalBuildService service;
        service.setBaseUrl(kBase);
        QCOMPARE(service.baseUrl(), kBase);
        CallResult r;
        service.ensureLoaded(r.callback());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QVERIFY2(r.ok, qPrintable(r.warning));

        QStringList ids;
        for (const SeasonalBuildEntry &entry : service.builds())
            ids << entry.id;
        // Открытые сезоны первыми (новые выше), закрытые — после; всё невалидное отброшено.
        QCOMPARE(ids, QStringList({"season-5", "vanilla-plus", "season-4"}));

        const auto s5 = service.find("season-5");
        QVERIFY(s5.has_value());
        QVERIFY(s5->isValid());
        QCOMPARE(s5->name, QStringLiteral("Сезон 5: Пустоши"));
        QCOMPARE(s5->revision, 3);
        QCOMPARE(s5->minecraftVersion, QStringLiteral("1.21.1"));
        QCOMPARE(s5->loader, QStringLiteral("fabric"));
        QCOMPARE(s5->loaderVersion, QStringLiteral("0.16.10"));
        QCOMPARE(s5->javaMajor, 21);
        QCOMPARE(s5->modCount, 120);
        QCOMPARE(s5->description, QStringLiteral("Пустоши"));   // обрезаны пробелы
        QCOMPARE(s5->seasonStart, QDate(2025, 7, 1));
        QVERIFY(!s5->seasonEnd.isValid());
        QCOMPARE(s5->archiveSize, qint64(123456));
        QCOMPARE(s5->archiveSha256, QString("abcdef" + QString(58, u'0')));   // к нижнему регистру
        QCOMPARE(s5->archiveUrl, QUrl("https://launcher-builds.galeonworx.com/packs/s5.zip"));
        QCOMPARE(service.find("season-4")->seasonEnd, QDate(2025, 6, 1));
        QVERIFY(service.find("vanilla-plus")->loader.isEmpty());

        QVERIFY(QFile::exists(LauncherPaths::seasonalCatalogFile()));
    }

    void baseUrlPathIsKept()
    {
        m_net.route("https://launcher-builds.galeonworx.com/beta/index.json",
                    FakeResponse::json(QJsonObject{{"formatVersion", 1}, {"builds", QJsonArray{}}}));
        SeasonalBuildService service;
        service.setBaseUrl(QUrl("https://launcher-builds.galeonworx.com/beta"));
        CallResult r;
        service.ensureLoaded(r.callback());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QCOMPARE(m_net.hits("https://launcher-builds.galeonworx.com/beta/index.json"), 1);
        QVERIFY(!r.ok);
        QCOMPARE(r.warning, Loc::text("seasonal.error.catalogEmpty"));
    }

    void formatVersionChecks_data()
    {
        QTest::addColumn<int>("format");
        QTest::addColumn<QString>("error");
        QTest::newRow("too new") << 2 << Loc::text("seasonal.error.formatTooNew").arg(2);
        QTest::newRow("unknown") << 0 << Loc::text("seasonal.error.formatUnknown").arg(0);
    }

    void formatVersionChecks()
    {
        QFETCH(int, format);
        QFETCH(QString, error);
        QJsonObject catalog = Fixtures::readJson("seasonal/index.json");
        catalog["formatVersion"] = format;
        m_net.route(kIndex, FakeResponse::json(catalog));
        SeasonalBuildService service;
        service.setBaseUrl(kBase);
        CallResult r;
        service.ensureLoaded(r.callback());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QVERIFY(!r.ok);
        QCOMPARE(r.warning, error);
        QCOMPARE(service.lastError(), error);
    }

    void cacheIsBoundToBaseUrl()
    {
        m_net.route(kIndex, FakeResponse::json(Fixtures::read("seasonal/index.json")));
        {
            SeasonalBuildService service;
            service.setBaseUrl(kBase);
            CallResult r;
            service.ensureLoaded(r.callback());
            QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        }
        // Тот же адрес — свежий кеш, без сети.
        {
            SeasonalBuildService service;
            service.setBaseUrl(kBase);
            CallResult r;
            service.ensureLoaded(r.callback());
            QVERIFY(service.hasData());
            QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 5000);
            QCOMPARE(m_net.hits(kIndex), 1);
        }
        // Другой адрес — чужой кеш не подхватывается.
        SeasonalBuildService other;
        other.setBaseUrl(QUrl("https://mirror.example"));
        m_net.route("https://mirror.example/index.json", FakeResponse::error(503));
        CallResult r;
        other.ensureLoaded(r.callback());
        QVERIFY(!other.hasData());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QVERIFY(!r.ok);
        QVERIFY(r.warning.startsWith(Loc::text("seasonal.error.catalogFetchFailed").section(u'%', 0, 0)));
    }

    void setBaseUrlResetsData()
    {
        m_net.route(kIndex, FakeResponse::json(Fixtures::read("seasonal/index.json")));
        SeasonalBuildService service;
        service.setBaseUrl(kBase);
        CallResult r;
        service.ensureLoaded(r.callback());
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QVERIFY(service.hasData());

        QSignalSpy changed(&service, &SeasonalBuildService::buildsChanged);
        service.setBaseUrl(kBase);   // тот же адрес — ничего не происходит
        QCOMPARE(changed.count(), 0);
        service.setBaseUrl(QUrl("https://mirror.example"));
        QCOMPARE(changed.count(), 1);
        QVERIFY(!service.hasData());
        QVERIFY(!service.find("season-5").has_value());
    }

    void offlineWithCacheKeepsBuilds()
    {
        m_net.route(kIndex, FakeResponse::json(Fixtures::read("seasonal/index.json")));
        {
            SeasonalBuildService service;
            service.setBaseUrl(kBase);
            CallResult r;
            service.ensureLoaded(r.callback());
            QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        }
        m_net.route(kIndex, FakeResponse::error(502));
        SeasonalBuildService service;
        service.setBaseUrl(kBase);
        CallResult r;
        service.ensureLoaded(r.callback(), /*forceRefresh=*/true);
        QTRY_COMPARE_WITH_TIMEOUT(r.calls, 1, 15000);
        QVERIFY(r.ok);
        QVERIFY(!r.warning.isEmpty());
        QCOMPARE(service.builds().size(), 3);
        QCOMPARE(service.lastError(), r.warning);
    }
};

BILAUNCHER_TEST_MAIN(TestSeasonalBuildService)
#include "tst_seasonalbuildservice.moc"