/*
 * Copyright (c) 2015, 2024, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by
 * the Free Software Foundation.
 *
 * This program is designed to work with certain software that is licensed under separate terms, as designated in a particular file or component or in
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 * separately licensed software that they have either included with the program or referenced in the documentation.
 *
 * Without limiting anything contained in the foregoing, this file, which is part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at http://oss.oracle.com/licenses/universal-foss-exception.
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 * 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, version 2.0, for more details.
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 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

package testsuite.x.devapi;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import static org.junit.jupiter.api.Assumptions.assumeTrue;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import com.mysql.cj.ServerVersion;
import com.mysql.cj.conf.PropertyDefinitions;
import com.mysql.cj.xdevapi.Collection;
import com.mysql.cj.xdevapi.XDevAPIError;

public class TransactionTest extends DevApiBaseTestCase {

    protected Collection collection;

    @BeforeEach
    public void setupCollectionTest() {
        assumeTrue(this.isSetForXTests, PropertyDefinitions.SYSP_testsuite_url_mysqlx + " must be set to run this test.");
        if (setupTestSession()) {
            dropCollection("txTest");
            this.collection = this.schema.createCollection("txTest");
        }
    }

    @AfterEach
    public void teardownCollectionTest() {
        if (this.isSetForXTests) {
            dropCollection("txTest");
            destroyTestSession();
        }
    }

    @Test
    public void basicRollback() {
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"1\"}").add("{\"_id\": \"2\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").add("{}").execute();
        }
        this.session.startTransaction();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"3\"}").add("{\"_id\": \"4\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").add("{}").execute();
        }
        assertEquals(4, this.collection.find().execute().count());
        this.session.rollback();

        assertEquals(2, this.collection.find().execute().count());
    }

    @Test
    public void basicCommit() {
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"1\"}").add("{\"_id\": \"2\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").add("{}").execute();
        }
        this.session.startTransaction();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"3\"}").add("{\"_id\": \"4\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").add("{}").execute();
        }
        assertEquals(4, this.collection.find().execute().count());
        this.session.commit();

        assertEquals(4, this.collection.find().execute().count());
    }

    @Test
    public void basicSavepoint() {
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"1\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        // Test for rollbackTo

        this.session.startTransaction();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"2\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        String sp1 = this.session.setSavepoint();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"3\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.setSavepoint(null);
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.setSavepoint("");
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.setSavepoint("");
            return null;
        });

        String sp2 = this.session.setSavepoint("sp2");
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"4\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        assertEquals(4, this.collection.find().execute().count());

        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.rollbackTo(null);
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.rollbackTo("");
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.rollbackTo("");
            return null;
        });

        this.session.rollbackTo(sp1);

        assertEquals(2, this.collection.find().execute().count());

        try {
            this.session.rollbackTo(sp2);
            fail("Error is expected here because 'sp2' savepoint should not exist at this point.");
        } catch (Exception e) {
            assertTrue(e.getMessage().contains("SAVEPOINT sp2 does not exist"));
        }

        this.session.commit();

        assertEquals(2, this.collection.find().execute().count());

        // Test for releaseSavepoint

        this.session.startTransaction();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"5\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        sp1 = this.session.setSavepoint();
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"6\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        sp2 = this.session.setSavepoint("sp2");
        if (!mysqlVersionMeetsMinimum(ServerVersion.parseVersion("8.0.5"))) {
            this.collection.add("{\"_id\": \"7\"}").execute(); // Requires manual _id.
        } else {
            this.collection.add("{}").execute();
        }

        assertEquals(5, this.collection.find().execute().count());

        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.releaseSavepoint(null);
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.releaseSavepoint("");
            return null;
        });
        assertThrows(XDevAPIError.class, "Parameter 'name' must not be null or empty.", () -> {
            TransactionTest.this.session.releaseSavepoint("");
            return null;
        });

        this.session.releaseSavepoint(sp2);

        assertEquals(5, this.collection.find().execute().count());

        try {
            this.session.rollbackTo(sp2);
            fail("Error is expected here because 'sp2' savepoint should not exist at this point.");
        } catch (Exception e) {
            assertTrue(e.getMessage().contains("SAVEPOINT sp2 does not exist"), e.getMessage());
        }

        this.session.rollbackTo(sp1);

        this.session.commit();

        assertEquals(3, this.collection.find().execute().count());
    }

}
