package com.basic.security.widget;

import android.app.Dialog;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import com.basic.security.utils.Constants;
import com.basic.security.utils.SystemUI;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class FileChooserDialog extends Dialog {
    public GridView fileList;
    public TextView currentPath;
    public TextView currentFileName;
    public List<File> files = new ArrayList<>();
    public FileAdapter fileAdapter = new FileAdapter();
    public SimpleDateFormat _formatter = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
    public TextView internalStorage, externalStorage, parent;
    public String selectedDir = "";
    private Context context;
    private String title;
    private String leftBtnText;
    private String rightBtnText;
    private ClickListenerInterface clickListenerInterface;

    public FileChooserDialog(Context context, String title, String leftBtnText, String rightBtnText) {
        super(context, com.basic.security.utils.RUtils.R_style_ConfirmDialogStyle);
        this.context = context;
        this.title = title;
        this.leftBtnText = leftBtnText;
        this.rightBtnText = rightBtnText;
    }

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        init();
    }

    public void init() {
        LayoutInflater inflater = LayoutInflater.from(context);
        View view = inflater.inflate(com.basic.security.utils.ResolutionAdaptation.file_chooser_dialog(), null);
        setContentView(view);
        TextView tvTitle = view.findViewById(com.basic.security.utils.RUtils.R_id_title);
        Button tvConfirm = view.findViewById(com.basic.security.utils.RUtils.R_id_leftBtn);
        TextView tvCancel = view.findViewById(com.basic.security.utils.RUtils.R_id_rightBit);
        fileList = view.findViewById(com.basic.security.utils.RUtils.R_id_fileList);
        currentPath = view.findViewById(com.basic.security.utils.RUtils.R_id_currentPath);
        currentFileName = view.findViewById(com.basic.security.utils.RUtils.R_id_currentFileName);
        internalStorage = view.findViewById(com.basic.security.utils.RUtils.R_id_internalStorage);
        externalStorage = view.findViewById(com.basic.security.utils.RUtils.R_id_externalStorage);
        parent = view.findViewById(com.basic.security.utils.RUtils.R_id_parent);
        internalStorage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                externalStorage.setTextColor(Color.WHITE);
                internalStorage.setTextColor(Color.parseColor("#4BA6AD"));
                listDir("/sdcard/");
            }
        });
        externalStorage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                internalStorage.setTextColor(Color.WHITE);
                externalStorage.setTextColor(Color.parseColor("#4BA6AD"));
                listUsb();
            }
        });
        parent.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                try {
                    File parentFile = new File(selectedDir).getParentFile();
                    if (parentFile != null && parentFile.canRead()) {
                        listDir(parentFile.getAbsolutePath());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
        fileList.setAdapter(fileAdapter);
        tvTitle.setText(title);
        tvConfirm.setText(leftBtnText);
        tvCancel.setText(rightBtnText);
        tvConfirm.setOnClickListener(new clickListener());
        tvCancel.setOnClickListener(new clickListener());
        Window dialogWindow = getWindow();
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
        DisplayMetrics d = context.getResources().getDisplayMetrics(); // 获取屏幕宽、高用
        if (Constants.landscape) {
            lp.width = (int) (d.widthPixels * 0.8); // 高度设置为屏幕的0.6
        } else {
            lp.width = (int) (d.widthPixels * 0.8); // 高度设置为屏幕的0.6
        }
        lp.height = (int) (d.heightPixels * 0.8);
        dialogWindow.setAttributes(lp);
        SystemUI.hideSystemUI(this);
        SystemUI.initSystemUIListener(this);
    }

    private void listUsb() {
        try {
            File file = new File("/storage/");
            if (file.isDirectory()) {
                files.clear();
                File[] fileArray = file.listFiles();
                if (fileArray != null) {
                    for (File file1 : fileArray) {
                        if (file1.canRead()) {
                            if (externalStorage != null) {
                                externalStorage.setVisibility(View.VISIBLE);
                                internalStorage.setTextColor(Color.WHITE);
                                externalStorage.setTextColor(Color.parseColor("#4BA6AD"));
                            }
                            listDir(file1.getAbsolutePath());
                            return;
                        }
                    }
                }
            }
            externalStorage.setVisibility(View.GONE);
            externalStorage.setTextColor(Color.WHITE);
            internalStorage.setTextColor(Color.parseColor("#4BA6AD"));
            listDir("/sdcard/");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void listDir(String path) {
//        System1.out.println("FileChooserDialog.listDir");
        try {
            File file = new File(path);
            if (file.isDirectory()) {
                selectedDir = path;
                if (!path.endsWith("/")) {
                    path += "/";
                }
                currentPath.setText(path);
                files.clear();
                File[] fileArray = file.listFiles();
//                System1.out.println("FileChooserDialog.listDir " + path + " " + fileArray);
                if (fileArray != null) {
                    for (File file1 : fileArray) {
                        if (file1.canRead()
//                                && file1.isDirectory()
                                ) {
                            files.add(file1);
                        }
                    }
                }
//                if ("/storage/".equals(path)) {
//                    File file1 = new File("/sdcard/");
//                    if (file1.canRead()) {
//                        files.add(file1);
//                    }
//                }
//                if (file.getParentFile().exists()) {
//                    files.add(0, file.getParentFile());
//                }
                fileAdapter.notifyDataSetChanged();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void show() {
        try {
            selectedDir = "";
            listUsb();
            this.getWindow().getDecorView().setVisibility(View.INVISIBLE);
            SystemUI.hideSystemUI(this);
            SystemUI.initSystemUIListener(this);
            super.show();
            this.getWindow().getDecorView().setVisibility(View.VISIBLE);
            listUsb();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void setClickListener(ClickListenerInterface clickListenerInterface) {
        this.clickListenerInterface = clickListenerInterface;
    }

    public interface ClickListenerInterface {
        void doConfirm();

        void doCancel();
    }

    public class FileAdapter extends BaseAdapter {
        @Override
        public int getCount() {
            return files.size();
        }

        @Override
        public Object getItem(int i) {
            return files.get(i);
        }

        @Override
        public long getItemId(int i) {
            return i;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup viewGroup) {
            ViewHolder viewHolder;
            if (convertView == null) {
                viewHolder = new ViewHolder();
                convertView = LayoutInflater.from(getContext()).inflate(com.basic.security.utils.ResolutionAdaptation.file_chooser_dialog_item(), null);
                viewHolder.file_icon = convertView.findViewById(com.basic.security.utils.RUtils.R_id_file_icon);
                viewHolder.file_name = convertView.findViewById(com.basic.security.utils.RUtils.R_id_file_name);
                viewHolder.file_size = convertView.findViewById(com.basic.security.utils.RUtils.R_id_file_size);
                viewHolder.file_date = convertView.findViewById(com.basic.security.utils.RUtils.R_id_file_date);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }
            File file = files.get(position);
            if (file.isDirectory()) {
                viewHolder.file_icon.setImageResource(com.basic.security.utils.RUtils.R_drawable_folder);
            } else {
                viewHolder.file_icon.setImageResource(com.basic.security.utils.RUtils.R_drawable_file);
            }
            viewHolder.file_name.setText(file.getName());
            viewHolder.file_size.setText(file.length() + "");
            viewHolder.file_date.setText(_formatter.format(new Date(file.lastModified())));
            convertView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    listDir(file.getAbsolutePath());
                }
            });
            return convertView;
        }

        public class ViewHolder {
            ImageView file_icon;
            TextView file_name, file_size, file_date;
        }
    }

    private class clickListener implements View.OnClickListener {
        public void onClick(View v) {
            int id = v.getId();
            switch (id) {
                case com.basic.security.utils.RUtils.R_id_leftBtn:
                    if (clickListenerInterface != null) {
                        clickListenerInterface.doConfirm();
                    }
                    break;
                case com.basic.security.utils.RUtils.R_id_rightBit:
                    if (clickListenerInterface != null) {
                        clickListenerInterface.doCancel();
                    }
                    break;
            }
        }
    }
}