/* Проверка реальных координат перенесённых ссылок и кнопки приглашения в строке участника. */
#include "../src/messagedelegate.h"
#include "../src/chatview.h"
#include "../src/accountdelegate.h"
#include <QtTest>
#include <QStandardItemModel>
#include <QClipboard>
extern "C" {
#include "chat/invite_link.h"
}

class InviteLinksTest : public QObject {
    Q_OBJECT
private slots:
    void compactInvitationUsesFullLinkForClickAndCopy() {
        struct InviteData invite = {};
        invite.channelId = 42; invite.join_key = 123; invite.pubkey[0] = 1; invite.addrCount = 8;
        for (auto& address : invite.addrs) { address.family = 6; address.proto = INVITE_PROTO_TCP; address.port = 443; }
        char buffer[1024];
        QVERIFY(invite_link_encode(&invite, nullptr, buffer, sizeof(buffer)) > 0);
        const QString link = QString::fromUtf8(buffer);
        const QString text = QStringLiteral("Приглашение в группу «Группа»\n") + link;
        for (int width : {240, 480}) {
            QStandardItemModel model;
            auto* message = new QStandardItem;
            message->setData(text, MsgTextRole); message->setData(link, MsgInviteLinkRole);
            message->setData(QStringLiteral("text/plain"), MsgContentTypeRole); message->setData(true, MsgIsOutgoingRole);
            model.appendRow(message);
            ChatView view; MessageDelegate delegate;
            view.setModel(&model); view.setItemDelegate(&delegate); view.resize(width, 300);
            view.setLinkHitTest([&](const QModelIndex& index, const QPoint& point) {
                QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
                return delegate.linkAt(option, index, point);
            });
            view.show(); QTest::qWait(30);
            const QModelIndex index = model.index(0, 0);
            QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
            QPoint firstPoint, lastPoint;
            QSet<int> rows;
            for (int y = 0; y < option.rect.height(); ++y) {
                for (int x = 0; x < view.viewport()->width(); x += 2) {
                    const QString hit = delegate.linkAt(option, index, QPoint(x, y));
                    if (hit.isEmpty()) continue;
                    QCOMPARE(hit, link);
                    rows.insert(y);
                    if (firstPoint.isNull()) firstPoint = QPoint(x, y);
                    lastPoint = QPoint(x, y);
                }
            }
            QVERIFY(!firstPoint.isNull());
            QVERIFY(rows.size() <= QFontMetrics(option.font).height() + 1);
            QVERIFY(option.rect.height() < 160);
            QSignalSpy clicked(&view, &ChatView::linkActivated);
            QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, lastPoint);
            QCOMPARE(clicked.count(), 1); QCOMPARE(clicked.last().first().toString(), link);
            QTest::mousePress(view.viewport(), Qt::LeftButton, Qt::NoModifier, firstPoint);
            QMouseEvent drag(QEvent::MouseMove, lastPoint, view.viewport()->mapToGlobal(lastPoint),
                             Qt::NoButton, Qt::LeftButton, Qt::NoModifier);
            QApplication::sendEvent(view.viewport(), &drag);
            QTest::mouseRelease(view.viewport(), Qt::LeftButton, Qt::NoModifier, lastPoint);
            QTest::qWait(20);
            QCOMPARE(clicked.count(), 1);
            QTest::keyClick(&view, Qt::Key_C, Qt::ControlModifier);
            QCOMPARE(QApplication::clipboard()->text(), link);
            QCOMPARE(index.data(MsgTextRole).toString(), text);
        }
    }

    void wrappedLinksPreserveTheirCompleteText() {
        struct InviteData invite = {};
        invite.channelId = 42; invite.join_key = 123; invite.pubkey[0] = 1; invite.addrCount = 8;
        for (auto& address : invite.addrs) { address.family = 6; address.proto = INVITE_PROTO_TCP; address.port = 443; }
        char buffer[1024];
        QVERIFY(invite_link_encode(&invite, nullptr, buffer, sizeof(buffer)) > 0);
        const QString first = QString::fromUtf8(buffer);
        invite.join_key++;
        QVERIFY(invite_link_encode(&invite, nullptr, buffer, sizeof(buffer)) > 0);
        const QString second = QString::fromUtf8(buffer);
        const QString text = QStringLiteral("Приглашение\n(%1),\nВторая группа: %2.").arg(first, second);
        QStandardItemModel model;
        auto* message = new QStandardItem;
        message->setData(text, MsgTextRole); message->setData(QStringLiteral("text/plain"), MsgContentTypeRole);
        message->setData(true, MsgIsOutgoingRole);
        model.appendRow(message);
        ChatView view; MessageDelegate delegate;
        view.setModel(&model); view.setItemDelegate(&delegate); view.resize(280, 900);
        view.setLinkHitTest([&](const QModelIndex& index, const QPoint& point) {
            QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
            return delegate.linkAt(option, index, point);
        });
        view.show(); QTest::qWait(30);
        const QModelIndex index = model.index(0, 0);
        QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
        QPoint firstPoint, secondPoint;
        QSet<int> firstRows;
        for (int y = 10; y < option.rect.height(); y += 8) {
            for (int x = 10; x < view.viewport()->width(); x += 16) {
                const QString link = delegate.linkAt(option, index, QPoint(x, y));
                if (link == first) { if (firstPoint.isNull()) firstPoint = QPoint(x, y); firstRows.insert(y); }
                else if (link == second) secondPoint = QPoint(x, y);
                else QVERIFY(link.isEmpty());
            }
        }
        QVERIFY(firstRows.size() > 4); QVERIFY(!firstPoint.isNull()); QVERIFY(!secondPoint.isNull());
        QVERIFY(delegate.linkAt(option, index, QPoint(0, 0)).isEmpty());
        QSignalSpy clicked(&view, &ChatView::linkActivated);
        QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, firstPoint);
        QCOMPARE(clicked.count(), 1); QCOMPARE(clicked.last().first().toString(), first);
        QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, secondPoint);
        QCOMPARE(clicked.count(), 2); QCOMPARE(clicked.last().first().toString(), second);
        /* Выделение использует те же перенесённые строки, что и отрисовка ссылки. */
        QPoint dragEnd = firstPoint + QPoint(20, 0);
        QTest::mousePress(view.viewport(), Qt::LeftButton, Qt::NoModifier, firstPoint);
        QMouseEvent drag(QEvent::MouseMove, dragEnd, view.viewport()->mapToGlobal(dragEnd),
                         Qt::NoButton, Qt::LeftButton, Qt::NoModifier);
        QApplication::sendEvent(view.viewport(), &drag);
        QTest::mouseRelease(view.viewport(), Qt::LeftButton, Qt::NoModifier, dragEnd);
        QTest::qWait(20);
        QCOMPARE(clicked.count(), 2);
        const auto selection = view.textSelection();
        QVERIFY(selection.startChar >= text.indexOf(first));
        QVERIFY(selection.endChar <= text.indexOf(first) + first.length());
        QVERIFY(selection.endChar > selection.startChar);
        QVERIFY(selection.endChar - selection.startChar < 20);
    }

    void memberPlusTargetsOtherMembersOnly() {
        QStandardItemModel model;
        auto* other = new QStandardItem("other"); other->setData(false, Qt::UserRole + 2); model.appendRow(other);
        auto* self = new QStandardItem("self"); self->setData(true, Qt::UserRole + 2); model.appendRow(self);
        QListView view; AccountDelegate delegate;
        view.setModel(&model); view.setItemDelegate(&delegate); view.resize(240, 140); view.show();
        QTest::qWait(30);
        QSignalSpy invites(&delegate, &AccountDelegate::inviteRequested);
        const QRect row = view.visualRect(model.index(0, 0));
        QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, QPoint(row.right() - 17, row.center().y()));
        QCOMPARE(invites.count(), 1); QCOMPARE(qvariant_cast<QModelIndex>(invites.first().first()).row(), 0);
        const QRect own = view.visualRect(model.index(1, 0));
        QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, QPoint(own.right() - 17, own.center().y()));
        QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, QPoint(60, row.center().y()));
        QCOMPARE(invites.count(), 1);
    }
};
QTEST_MAIN(InviteLinksTest)
#include "test_invite_links.moc"