package com.yutou.tools.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.yutou.tools.home.nas.Data.MusicData;
import com.yutou.tools.home.nas.MusicController;
import ealvatag.audio.AudioFile;
import ealvatag.audio.AudioFileIO;
import ealvatag.audio.AudioHeader;
import ealvatag.audio.exceptions.CannotReadException;
import ealvatag.tag.FieldKey;
import ealvatag.tag.NullTag;
import ealvatag.tag.Tag;
import ealvatag.tag.flac.FlacTag;
import org.springframework.util.StringUtils;

import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;

public class MusicTools {
    public static final int FIND_TITLE = 1;
    public static final int FIND_ARTIST = 2;

    private static MusicTools tools;
    private String musicPath = "/media/yutou/4t/public/音乐";
    private final List<MusicData> musicList = new ArrayList<>();
    private HashMap<String, List<MusicData>> musicMap = new HashMap<String, List<MusicData>>();
    private boolean isScan = false;

    public static MusicTools getInstance() {
        if (tools == null) {
            tools = new MusicTools();
        }
        return tools;
    }

    private MusicTools() {
        scanMusic();
        new Timer().schedule(new TimerTask() {
            @Override
            public void run() {
                String time = new SimpleDateFormat("HH:mm").format(new Date());
                if (time.equals("00:00")) {
                    System.out.println("零点刷新列表");
                    scanMusic();
                }
            }
        }, 0, 10 * 1000);
    }

    public synchronized void scanMusic() {
        if (isScan) {
            return;
        }
        System.out.println("执行扫描");
        musicList.clear();
        musicMap.clear();
        new Thread(() -> {
            isScan = true;
            scan(new File(musicPath));
            isScan = false;
            System.out.println("扫描完成");
        }).start();
    }

    public List<MusicData> scan(File path, boolean isScanDir) {
        if (isScanDir) {
            scan(path);
            return musicList;
        } else {
            if (path.exists() && path.isDirectory()) {
                List<MusicData> list = new ArrayList<>();
                for (File file : path.listFiles()) {
                    list.add(getMetadata(file));
                }
                return list;
            }
        }
        return null;
    }

    private void scan(File path) {
        if (path.isFile()) {
            add(path);
        } else if (path.isDirectory()) {
            for (File file : Objects.requireNonNull(path.listFiles())) {
                if (file.isDirectory()) {
                    scan(file);
                } else {
                    add(file);
                }
            }
        }
    }

    public void getPathOrDir(String path, List<MusicData> list) {
        File files = new File(path);
        for (File file : files.listFiles()) {
            if (file.isFile()) {
                list.add(getMetadata(file));
            } else {
                getPathOrDir(file.getAbsolutePath(), list);
            }
        }
    }

    /**
     * 获取指定目录下的音乐
     *
     * @param path  指定目录
     * @param isDir 是否扫描目录下的所有文件，false则仅为当前目录
     * @return 音乐列表
     */
    public List<MusicData> getPath(String path, boolean isDir) {
        List<MusicData> list = new ArrayList<>();
        if (isDir) {
            if (new File(path).isDirectory() && !path.equals(MusicController.defaultMusicPath)) {
                for (String key : musicMap.keySet()) {
                    if (key.startsWith(path)) {
                        list.addAll(musicMap.get(key));
                    }
                }
                return list;
            }
        }
        if (musicMap.containsKey(path)) {
            MusicData tmp = musicMap.get(path).isEmpty() ? null : musicMap.get(path).get(0);
            if (tmp != null) {
                if (!tmp.getFile().getParent().equals(MusicController.defaultMusicPath)) {
                    MusicData t2 = new MusicData();
                    t2.setTitle("返回");
                    t2.setFile(new File(tmp.getLastDir()));
                    list.add(t2);
                }

            }
            getDirList(path, list);
            list.addAll(musicMap.get(path));
            return list;
        } else {
            if (path.contains(MusicController.defaultMusicPath)) {
                MusicData t2 = new MusicData();
                t2.setTitle("返回");
                t2.setFile(new File(path).getParentFile());
                if (!path.equals(MusicController.defaultMusicPath)) {
                    list.add(t2);
                }
                getDirList(path, list);
                return list;
            }

        }
        return new ArrayList<>();
    }

    private void getDirList(String path, List<MusicData> list) {
        File file = new File(path);
        for (File listFile : file.listFiles()) {
            if (listFile.isDirectory()) {
                MusicData data = new MusicData();
                data.setTitle(listFile.getName());
                data.setFile(listFile);
                list.add(data);
            }
        }
    }

    private void add(File file) {
        MusicData data = getMetadata(file);
        if (data != null) {
            musicList.add(data);
            String path = file.getAbsolutePath().replace(File.separator + file.getName(), "");
            List<MusicData> list;
            if (musicMap.containsKey(path)) {
                list = musicMap.get(path);
            } else {
                list = new ArrayList<>();
            }
            list.add(data);
            musicMap.put(path, list);
        }
    }

    public MusicData getMetadata(File file) {
        try {
            if (file.getName().endsWith(".lrc")
                    || file.getName().endsWith(".jpg")
                    || file.getName().endsWith(".ini")
                    || file.getName().endsWith(".png")
                    || file.getName().endsWith(".torrent")
                    || file.getName().endsWith(".log")
                    || file.getName().endsWith(".mkv")
                    || file.getName().endsWith(".dff")
                    || file.getName().endsWith(".cue")
            ) {
                return null;
            }
            AudioFile audioFile = AudioFileIO.read(file);
            Tag tag = audioFile.getTag().or(NullTag.INSTANCE);
            MusicData data = new MusicData();
            try {
                data.setAlbum(tag.getFirst(FieldKey.ALBUM));
            } catch (Exception e) {
            }
            try {
                data.setArtist(tag.getFirst(FieldKey.ARTIST));
            } catch (Exception e) {
            }
            try {
                data.setArtist_sort(tag.getFirst(FieldKey.ARTIST_SORT));
            } catch (Exception e) {
            }
            try {
                data.setComment(tag.getFirst(FieldKey.COMMENT));
            } catch (Exception e) {
            }
            try {
                data.setComposer(tag.getFirst(FieldKey.COMPOSER));
            } catch (Exception e) {
            }
            try {
                data.setDisc_no(tag.getFirst(FieldKey.DISC_NO));
            } catch (Exception e) {
            }
            try {
                if (StringUtils.isEmpty(tag.getFirst(FieldKey.TITLE))) {
                    data.setTitle(file.getName());
                } else {
                    data.setTitle(tag.getFirst(FieldKey.TITLE));
                }
            } catch (Exception e) {
                data.setTitle(file.getName());
            }
            try {
                data.setTrack(tag.getFirst(FieldKey.TRACK));
            } catch (Exception e) {
            }
            try {
                data.setYear(tag.getFirst(FieldKey.YEAR));
            } catch (Exception e) {
            }
            data.setFile(file);

            AudioHeader header = audioFile.getAudioHeader();
            data.setBitRate(header.getBitRate());
            data.setSampleRate(header.getSampleRate());
            data.setNoOfSamples(header.getNoOfSamples());
            data.setChannelCount(header.getChannelCount());
            data.setEncodingType(header.getEncodingType());
            data.setDurationAsDouble(header.getDurationAsDouble());
            data.setLossless(header.isLossless());
            data.setVariableBitRate(header.isVariableBitRate());
            try {
                data.setMd5(header.getClass().getMethod("getMd5").invoke(header).toString());
            } catch (Exception ignored) {
                data.setMd5(Base64.getEncoder().encodeToString(file.getAbsolutePath().getBytes()));
            }
            return data;
        } catch (CannotReadException e) {
            MusicData data = getMetadata_jthink(file);
            if (data == null)
                data = new MusicData();
            data.setTitle(file.getName());
            data.setFile(file);
            return data;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public MusicData getMetadata_jthink(File file) {
        try {
            org.jaudiotagger.audio.AudioFile audioFile = org.jaudiotagger.audio.AudioFileIO.read(file);
            org.jaudiotagger.tag.Tag tag = audioFile.getTag();
            MusicData data = new MusicData();
            try {
                data.setAlbum(tag.getFirst(org.jaudiotagger.tag.FieldKey.ALBUM));
            } catch (Exception ignored) {
            }
            try {
                data.setArtist(tag.getFirst(org.jaudiotagger.tag.FieldKey.ARTIST));
            } catch (Exception ignored) {
            }
            try {
                data.setArtist_sort(tag.getFirst(org.jaudiotagger.tag.FieldKey.ARTIST_SORT));
            } catch (Exception ignored) {
            }
            try {
                data.setComment(tag.getFirst(org.jaudiotagger.tag.FieldKey.COMMENT));
            } catch (Exception ignored) {
            }
            try {
                data.setComposer(tag.getFirst(org.jaudiotagger.tag.FieldKey.COMPOSER));
            } catch (Exception ignored) {
            }
            try {
                data.setDisc_no(tag.getFirst(org.jaudiotagger.tag.FieldKey.DISC_NO));
            } catch (Exception ignored) {
            }
            try {
                if (StringUtils.isEmpty(tag.getFirst(org.jaudiotagger.tag.FieldKey.TITLE))) {
                    data.setTitle(file.getName());
                } else {
                    data.setTitle(tag.getFirst(org.jaudiotagger.tag.FieldKey.TITLE));
                }
            } catch (Exception e) {
                data.setTitle(file.getName());
            }
            try {
                data.setTrack(tag.getFirst(org.jaudiotagger.tag.FieldKey.TRACK));
            } catch (Exception ignored) {
            }
            try {
                data.setYear(tag.getFirst(org.jaudiotagger.tag.FieldKey.YEAR));
            } catch (Exception ignored) {
            }
            data.setFile(file);

            org.jaudiotagger.audio.AudioHeader header = audioFile.getAudioHeader();
            data.setBitRate(Integer.parseInt(header.getBitRate()));
            data.setSampleRate(Integer.parseInt(header.getSampleRate()));
            data.setNoOfSamples(header.getSampleRateAsNumber());
            data.setChannelCount(Integer.parseInt(header.getChannels()));
            data.setEncodingType(header.getEncodingType() + "");
            data.setDurationAsDouble(header.getTrackLength());
            data.setLossless(header.isLossless());
            data.setVariableBitRate(header.isVariableBitRate());
            try {
                data.setMd5(header.getClass().getMethod("getMd5").invoke(header).toString());
            } catch (Exception ignored) {
                data.setMd5(Base64.getEncoder().encodeToString(file.getAbsolutePath().getBytes()));
            }
            return data;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public List<MusicData> findOfTitle(String title) {
        return find(title, FIND_TITLE);
    }

    public List<MusicData> findOfArtist(String by) {
        return find(by, FIND_ARTIST);
    }

    public List<MusicData> getMusicList() {
        return musicList;
    }

    public int getLength() {
        return tools.musicList.size();
    }

    public boolean isScan() {
        return isScan;
    }

    private List<MusicData> find(String title, int type) {
        List<MusicData> list = new ArrayList<>();
        for (MusicData data : musicList) {
            if (data.getTitle().contains(title)) {
                list.add(data);
            }
        }
        return list;
    }


    public String getMusicPath() {
        return musicPath;
    }

    public void setMusicPath(String musicPath) {
        this.musicPath = musicPath;
    }

    private void saveImage(MusicData data) {
        try {
            File file = new File(data.getTitle() + ".jpg");
            if (!file.exists()) {
                if (!file.createNewFile()) {
                    return;
                }
            }
            OutputStream outputStream = new FileOutputStream(file);
            outputStream.write(data.readImage());
            outputStream.flush();
            outputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) throws Exception {
        File file = new File("Z:\\音乐\\总之就是非常酸\\ED\\カノエラナ - 月と星空\\カノエラナ.wav");
        System.out.println(new MusicTools().getMetadata(file));
    }


}