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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.flink.table;

import org.apache.flink.api.common.io.InputFormat;
import org.apache.flink.api.connector.source.Source;
import org.apache.flink.table.api.TableSchema;
import org.apache.flink.table.connector.source.InputFormatProvider;
import org.apache.flink.table.connector.source.ScanTableSource;
import org.apache.flink.table.connector.source.SourceProvider;
import org.apache.flink.table.data.RowData;
import org.apache.flink.table.runtime.connector.source.ScanRuntimeProviderContext;

import org.apache.doris.flink.cfg.DorisLookupOptions;
import org.apache.doris.flink.cfg.DorisReadOptions;
import org.apache.doris.flink.sink.OptionUtils;
import org.apache.doris.flink.source.DorisSource;
import org.apache.doris.flink.source.enumerator.PendingSplitsCheckpoint;
import org.apache.doris.flink.source.split.DorisSourceSplit;
import org.apache.doris.flink.utils.FactoryMocks;
import org.junit.Ignore;
import org.junit.Test;

import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.MatcherAssert.assertThat;

public class DorisDynamicTableSourceTest {

    @Test
    public void testDorisUseNewApi() {
        DorisReadOptions.Builder builder = OptionUtils.dorisReadOptionsBuilder();
        builder.setUseOldApi(false);
        final DorisDynamicTableSource actualDorisSource =
                new DorisDynamicTableSource(
                        OptionUtils.buildDorisOptions(),
                        builder.build(),
                        DorisLookupOptions.builder().build(),
                        TableSchema.fromResolvedSchema(FactoryMocks.SCHEMA),
                        FactoryMocks.PHYSICAL_DATA_TYPE);
        ScanTableSource.ScanRuntimeProvider provider =
                actualDorisSource.getScanRuntimeProvider(ScanRuntimeProviderContext.INSTANCE);
        assertDorisSource(provider);
    }

    @Test
    public void testDorisUseNewApiDefault() {
        final DorisDynamicTableSource actualDorisSource =
                new DorisDynamicTableSource(
                        OptionUtils.buildDorisOptions(),
                        OptionUtils.buildDorisReadOptions(),
                        DorisLookupOptions.builder().build(),
                        TableSchema.fromResolvedSchema(FactoryMocks.SCHEMA),
                        FactoryMocks.PHYSICAL_DATA_TYPE);
        ScanTableSource.ScanRuntimeProvider provider =
                actualDorisSource.getScanRuntimeProvider(ScanRuntimeProviderContext.INSTANCE);
        assertDorisSource(provider);
    }

    @Ignore
    @Test
    public void testDorisUseOldApi() {
        DorisReadOptions.Builder builder = OptionUtils.dorisReadOptionsBuilder();
        builder.setUseOldApi(true);
        final DorisDynamicTableSource actualDorisSource =
                new DorisDynamicTableSource(
                        OptionUtils.buildDorisOptions(),
                        builder.build(),
                        TableSchema.fromResolvedSchema(FactoryMocks.SCHEMA));
        ScanTableSource.ScanRuntimeProvider provider =
                actualDorisSource.getScanRuntimeProvider(ScanRuntimeProviderContext.INSTANCE);
        assertDorisInputFormat(provider);
    }

    private void assertDorisInputFormat(ScanTableSource.ScanRuntimeProvider provider) {
        assertThat(provider, instanceOf(InputFormatProvider.class));
        final InputFormatProvider inputFormatProvider = (InputFormatProvider) provider;

        InputFormat<RowData, DorisTableInputSplit> inputFormat =
                (InputFormat<RowData, DorisTableInputSplit>)
                        inputFormatProvider.createInputFormat();
        assertThat(inputFormat, instanceOf(DorisRowDataInputFormat.class));
    }

    private void assertDorisSource(ScanTableSource.ScanRuntimeProvider provider) {
        assertThat(provider, instanceOf(SourceProvider.class));
        final SourceProvider sourceProvider = (SourceProvider) provider;

        Source<RowData, DorisSourceSplit, PendingSplitsCheckpoint> source =
                (Source<RowData, DorisSourceSplit, PendingSplitsCheckpoint>)
                        sourceProvider.createSource();
        assertThat(source, instanceOf(DorisSource.class));
    }
}