/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.impl.store;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.neo4j.internal.recordstorage.RecordCursorTypes.LABEL_TOKEN_CURSOR;
import static org.neo4j.io.pagecache.context.CursorContext.NULL_CONTEXT;

import java.util.Collection;
import java.util.Iterator;
import org.neo4j.io.pagecache.PageCursor;
import org.neo4j.kernel.impl.store.record.DynamicRecord;
import org.neo4j.kernel.impl.store.record.LabelTokenRecord;
import org.neo4j.storageengine.api.cursor.StoreCursors;
import org.neo4j.string.UTF8;
import org.opentest4j.TestAbortedException;

class LabelTokenStoreConsistentReadTest extends RecordStoreConsistentReadTest<LabelTokenRecord, LabelTokenStore> {
    private static final int NAME_RECORD_ID = 2;
    private static final byte[] NAME_RECORD_DATA = UTF8.encode("TheLabel");

    @Override
    protected LabelTokenStore getStore(NeoStores neoStores) {
        return neoStores.getLabelTokenStore();
    }

    @Override
    protected PageCursor getCursor(StoreCursors storeCursors) {
        return storeCursors.readCursor(LABEL_TOKEN_CURSOR);
    }

    @Override
    protected LabelTokenStore initialiseStore(NeoStores neoStores) {
        LabelTokenStore store = getStore(neoStores);
        LabelTokenRecord record = createExistingRecord(false);
        DynamicRecord nameRecord = new DynamicRecord(NAME_RECORD_ID);
        record.getNameRecords().clear();
        nameRecord.setData(NAME_RECORD_DATA);
        nameRecord.setInUse(true);
        record.addNameRecord(nameRecord);
        try (var storeCursor = storeCursors.writeCursor(LABEL_TOKEN_CURSOR)) {
            store.updateRecord(record, storeCursor, NULL_CONTEXT, storeCursors);
        }
        return store;
    }

    @Override
    protected LabelTokenRecord createNullRecord(long id) {
        return new LabelTokenRecord((int) id).initialize(false, 0);
    }

    @Override
    protected LabelTokenRecord createExistingRecord(boolean light) {
        LabelTokenRecord record = new LabelTokenRecord(ID);
        record.setNameId(NAME_RECORD_ID);
        record.setInUse(true);
        if (!light) {
            DynamicRecord nameRecord = new DynamicRecord(NAME_RECORD_ID);
            nameRecord.setInUse(true);
            nameRecord.setData(NAME_RECORD_DATA);
            record.addNameRecord(nameRecord);
        }
        return record;
    }

    @Override
    protected LabelTokenRecord getLight(long id, LabelTokenStore store, PageCursor pageCursor) {
        throw new TestAbortedException("No light loading of LabelTokenRecords");
    }

    @Override
    protected void assertRecordsEqual(LabelTokenRecord actualRecord, LabelTokenRecord expectedRecord) {
        assertNotNull(actualRecord, "actualRecord");
        assertNotNull(expectedRecord, "expectedRecord");
        assertThat(actualRecord.getNameId()).as("getNameId").isEqualTo(expectedRecord.getNameId());
        assertThat(actualRecord.getId()).as("getId").isEqualTo(expectedRecord.getId());
        assertThat(actualRecord.getId()).as("getLongId").isEqualTo(expectedRecord.getId());
        assertThat(actualRecord.isLight()).as("isLight").isEqualTo(expectedRecord.isLight());

        Collection<DynamicRecord> actualNameRecords = actualRecord.getNameRecords();
        Collection<DynamicRecord> expectedNameRecords = expectedRecord.getNameRecords();
        assertThat(actualNameRecords.size()).as("getNameRecords.size").isEqualTo(expectedNameRecords.size());
        Iterator<DynamicRecord> actualNRs = actualNameRecords.iterator();
        Iterator<DynamicRecord> expectedNRs = expectedNameRecords.iterator();
        int i = 0;
        while (actualNRs.hasNext() && expectedNRs.hasNext()) {
            DynamicRecord actualNameRecord = actualNRs.next();
            DynamicRecord expectedNameRecord = expectedNRs.next();

            assertThat(actualNameRecord.getData()).as("[" + i + "]getData").isEqualTo(expectedNameRecord.getData());
            assertThat(actualNameRecord.getLength())
                    .as("[" + i + "]getLength")
                    .isEqualTo(expectedNameRecord.getLength());
            assertThat(actualNameRecord.getNextBlock())
                    .as("[" + i + "]getNextBlock")
                    .isEqualTo(expectedNameRecord.getNextBlock());
            assertThat(actualNameRecord.getType()).as("[" + i + "]getType").isEqualTo(expectedNameRecord.getType());
            assertThat(actualNameRecord.getId()).as("[" + i + "]getId").isEqualTo(expectedNameRecord.getId());
            assertThat(actualNameRecord.getId()).as("[" + i + "]getLongId").isEqualTo(expectedNameRecord.getId());
            assertThat(actualNameRecord.isStartRecord())
                    .as("[" + i + "]isStartRecord")
                    .isEqualTo(expectedNameRecord.isStartRecord());
            assertThat(actualNameRecord.inUse()).as("[" + i + "]inUse").isEqualTo(expectedNameRecord.inUse());
            i++;
        }
    }
}
