import java.io.IOException;
import java.util.List;

/**
 * Interface for converting text into its reading form.
 */
public interface ReadingConverter {

    /**
     * Returns the maximum number of readings.
     *
     * @return the maximum number of readings, default is 10.
     */
    default int getMaxReadingNum() {
        return 10;
    }

    /**

        String[][] readings = { { "reading" } };
        String[] fields = { "field" };

        return new SuggestItem(texts, readings, fields, 1L, 1L, 1.0f, tags, new String[0], new String[0], SuggestItem.Kind.DOCUMENT);
    }

    private SuggestItem createItemWithRoles(String text, String... roles) {
        String[] texts = { text };
        String[][] readings = { { "reading" } };

        String[][] readings1 = new String[1][];
        readings1[0] = new String[] { "doc" };
        items[0] = new SuggestItem(new String[] { "ドキュメント" }, readings1, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        String[][] readings2 = new String[1][];

    }

    @Test
    public void test_addLanguage() throws Exception {
        SuggestItem[] items = new SuggestItem[1];
        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        items[0] = new SuggestItem(new String[] { "test" }, readings, new String[] { "content" }, 0, 15, -1, new String[] { "tag1" },

    }

    @Test
    public void test_addLang() throws Exception {
        SuggestItem[] items = new SuggestItem[1];
        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        items[0] = new SuggestItem(new String[] { "test" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },

        String[] words = new String[] { "word1", "word2", "word3" };
        // Only provide readings for first word
        String[][] readings = new String[][] { new String[] { "reading1" } };
        String[] fields = new String[] { "content" };

        SuggestItem item =
                parser.parseSearchWords(words, readings, fields, null, null, 1, defaultReadingConverter, defaultNormalizer, analyzer, null);

        Suggester suggester = createSuggester();
        suggester.createIndexIfNothing();

        // Index some data
        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        SuggestItem item = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

    public void setUserBoost(final float userBoost) {
        this.userBoost = userBoost;
    }

    /**
     * Sets the readings of the suggest item.
     * @param readings The readings to set.
     */
    public void setReadings(final String[][] readings) {
        this.readings = readings;
    }

    /**
     * Sets the fields of the suggest item.
     * @param fields The fields to set.
     */

        final Map<String, Object> map = new HashMap<>();
        map.put(FieldNames.TEXT, item.getText());

        final String[][] readings = item.getReadings();
        for (int i = 0; i < readings.length; i++) {
            final String[] values = readings[i] == null ? null : Arrays.stream(readings[i]).distinct().toArray(n -> new String[n]);
            map.put(FieldNames.READING_PREFIX + i, values);
        }

        queryItems[0] = new SuggestItem(new String[] { "検索", "エンジン" }, readings, new String[] { "content" }, 1, 0, -1, tags, roles, null,
                SuggestItem.Kind.DOCUMENT);

        String[][] readings2 = new String[2][];
        readings2[0] = new String[] { "zenbun", "fuga" };
        readings2[1] = new String[] { "kensaku", "fuga" };
        String[] tags2 = new String[] { "tag3" };