// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.io;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.time.Instant;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
import org.openstreetmap.josm.data.osm.history.History;
import org.openstreetmap.josm.data.osm.history.HistoryDataSet;
import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
import org.openstreetmap.josm.spi.preferences.Config;
import org.openstreetmap.josm.testutils.annotations.BasicPreferences;
import org.openstreetmap.josm.testutils.annotations.BasicWiremock;
import org.openstreetmap.josm.testutils.annotations.HTTP;

import com.github.tomakehurst.wiremock.WireMockServer;

/**
 * Unit tests of {@link OsmServerHistoryReader} class.
 */
@BasicPreferences
@BasicWiremock
@HTTP
class OsmServerHistoryReaderTest {
    /**
     * HTTP mock.
     */
    @BasicWiremock
    WireMockServer wireMockServer;

    /**
     * Setup tests.
     */
    @BeforeEach
    void setUp() {
        Config.getPref().put("osm-server.url", wireMockServer.url("/__files/api"));
    }

    /**
     * Tests node history fetching.
     * @throws OsmTransferException if any error occurs
     */
    @Test
    void testNode() throws OsmTransferException {
        OsmServerHistoryReader reader = new OsmServerHistoryReader(OsmPrimitiveType.NODE, 266187);
        HistoryDataSet ds = reader.parseHistory(NullProgressMonitor.INSTANCE);
        History h = ds.getHistory(266187, OsmPrimitiveType.NODE);
        assertEquals(5, h.getNumVersions());
        assertEquals(1, h.getLatest().getNumKeys());
        assertEquals(65565982, h.getLatest().getChangesetId());
        assertEquals(Instant.ofEpochMilli(1545089885000L), h.getLatest().getInstant());
    }

    /**
     * Tests way history fetching.
     * @throws OsmTransferException if any error occurs
     */
    @Test
    void testWay() throws OsmTransferException {
        OsmServerHistoryReader reader = new OsmServerHistoryReader(OsmPrimitiveType.WAY, 3058844);
        HistoryDataSet ds = reader.parseHistory(NullProgressMonitor.INSTANCE);
        History h = ds.getHistory(3058844, OsmPrimitiveType.WAY);
        assertEquals(14, h.getNumVersions());
        assertEquals(10, h.getLatest().getNumKeys());
        assertEquals(26368284, h.getLatest().getChangesetId());
        assertEquals(Instant.ofEpochMilli(1414429134000L), h.getLatest().getInstant());
        assertEquals(11, h.getWhichChangedTag(h.getByVersion(14), "bicycle", false).getVersion());
        assertEquals(1, h.getWhichChangedTag(h.getByVersion(10), "bicycle", false).getVersion());
        assertEquals(5, h.getWhichChangedTag(h.getByVersion(14), "created_by", false).getVersion());
        assertEquals(2, h.getWhichChangedTag(h.getByVersion(4), "created_by", false).getVersion());
        assertEquals(1, h.getWhichChangedTag(h.getByVersion(1), "highway", false).getVersion());
    }

    /**
     * Tests relation history fetching.
     * @throws OsmTransferException if any error occurs
     */
    @Test
    void testRelation() throws OsmTransferException {
        OsmServerHistoryReader reader = new OsmServerHistoryReader(OsmPrimitiveType.RELATION, 49);
        HistoryDataSet ds = reader.parseHistory(NullProgressMonitor.INSTANCE);
        History h = ds.getHistory(49, OsmPrimitiveType.RELATION);
        assertEquals(3, h.getNumVersions());
        assertEquals(0, h.getLatest().getNumKeys());
        assertEquals(486501, h.getLatest().getChangesetId());
        assertEquals(Instant.ofEpochMilli(1194886166000L), h.getLatest().getInstant());
    }
}