/*
 * Copyright (c) 2018-2020. Developed by Hedgecode.
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.hedgecode.chess.pgn.format;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.hedgecode.chess.pgn.PGNUtils;
import org.hedgecode.chess.pgn.entity.Move;
import org.hedgecode.chess.pgn.entity.Tag;
import org.hedgecode.chess.pgn.format.wrap.ExportWrapper;
import org.hedgecode.chess.pgn.format.wrap.MovesWrapper;

import static org.hedgecode.chess.pgn.PGNConstants.*;

/**
 * AbstractPGNFormat
 *
 * @author Dmitry Samoshin aka gotty
 */
public abstract class AbstractPGNFormat<Format extends MovesFormat> implements PGNFormat<Format> {

    private final DateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd");
    private final DateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");

    private final Map<Tag, String> pgnTags = new HashMap<>();

    private String pgnMoves;
    private List<Move> moves;

    private MovesWrapper wrapper;

    public AbstractPGNFormat() {
        this.wrapper = new ExportWrapper();
    }

    public AbstractPGNFormat(MovesWrapper wrapper) {
        this.wrapper = wrapper;
    }

    @Override
    public void addTag(Tag tag, String value) {
        pgnTags.put(tag, value);
    }

    @Override
    public void addTags(Map<String, String> tags) {
        for (Tag tag : Tag.tags()) {
            String value = tags.get(tag.getName());
            if (value != null) {
                pgnTags.put(tag, value);
            }
        }
    }

    @Override
    public String getTag(Tag tag) {
        return pgnTags.get(tag);
    }

    @Override
    public void addMoves(String moves) {
        pgnMoves = moves;
    }

    @Override
    public void addMoves(Move[] moves) {
        this.moves = Arrays.asList(moves);
    }

    @Override
    public void addMoves(List<Move> moves) {
        this.moves = moves;
    }

    @Override
    public String formatDate(Date date) {
        return dateFormat.format(date);
    }

    @Override
    public String formatTime(Date time) {
        return timeFormat.format(time);
    }

    protected String formatMoves() {
        if (pgnMoves == null) {
            pgnMoves = movesFormat().format(moves);
        } else {
            pgnMoves = PGNUtils.stripCrlf(pgnMoves);
        }
        return wrapper.wrap(
                pgnMoves.concat(
                        PGN_SPACE
                ).concat(
                        result()
                )
        );
    }

    private String result() {
        String result = pgnTags.get(Tag.RESULT);
        return result != null ? result : Tag.RESULT.defaultValue();
    }

}