package com.hjx.parent;

import android.annotation.SuppressLint;
import android.app.Dialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Rect;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;


import androidx.annotation.Nullable;
import androidx.core.content.FileProvider;
import androidx.viewpager2.widget.ViewPager2;

import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.hjx.parent.adapter.ImageAdapter;
import com.hjx.parent.databinding.ActivityImageBinding;
import com.hjx.parent.dialog.AddHomeworkDialog;
import com.hjx.parent.dialog.ErrorInputDialog;
import com.hjx.parent.dialog.TipDialog;
import com.hjx.parent.rx.BaseRxActivity;
import com.prws.common.bean.CutPicBean;
import com.prws.common.bean.ImageBean;
import com.prws.common.bean.TopicBean;
import com.prws.common.net.NetWorks;
import com.prws.common.utils.BitmapUtils;
import com.prws.common.utils.CommonUtil;
import com.xiasuhuei321.loadingdialog.view.LoadingDialog;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import io.reactivex.Observer;
import io.reactivex.disposables.Disposable;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class ImageActivity extends BaseRxActivity<ActivityImageBinding> implements View.OnClickListener {

    private List<String> images = new ArrayList<>();
    private ImageAdapter imageAdapter;
    private List<ImageBean> list = new ArrayList<>();
    private String filePath;

    private int type = 0;
    private AddHomeworkDialog addHomeworkDialog;

    @Override
    public void initView(Bundle savedInstanceState) {
        type = getIntent().getIntExtra("type", 0);
        binding.tvSave.setText(type == 0 ? "保存错题" : "录入题目");

        images = getIntent().getStringArrayListExtra("images");
        for (String s : images) {
            String filepath = context.getExternalFilesDir("images").getPath() + "/" + System.currentTimeMillis() + CommonUtil.getStr() + ".jpg";
            ImageBean imageBean = new ImageBean();
            Bitmap bitmap = BitmapUtils.getimage(s);
            CommonUtil.saveBitmapToUri(bitmap, filepath);
            imageBean.setPath(filepath);
            list.add(imageBean);
        }
        imageAdapter = new ImageAdapter(this, list);
        binding.viewPager.setAdapter(imageAdapter);
        binding.viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
            @Override
            public void onPageSelected(int position) {
                if (list.get(position).getCuts() == null) {
//                    binding.ivPrevious.setEnabled(false);
//                    binding.ivNext.setEnabled(false);
                    clearText();
                }
                binding.tvTitle.setText((binding.viewPager.getCurrentItem() + 1) + "/" + list.size());
                if (position == 0) {
                    binding.ivPrevious.setImageResource(R.mipmap.ic_previous_gray);
//                    binding.ivPrevious.setEnabled(true);
                } else {
                    binding.ivPrevious.setImageResource(R.mipmap.ic_previous);
//                    binding.ivPrevious.setEnabled(false);
                }
                if (position == list.size() - 1) {
                    binding.ivNext.setImageResource(R.mipmap.ic_next_gray);
//                    binding.ivNext.setEnabled(true);
                } else {
                    binding.ivNext.setImageResource(R.mipmap.ic_next);
//                    binding.ivNext.setEnabled(false);
                }
                super.onPageSelected(position);
            }
        });
        binding.ivNext.setOnClickListener(this);
        binding.ivPrevious.setOnClickListener(this);
        binding.ivBack.setOnClickListener(this);
        binding.tvPhoto.setOnClickListener(this);
        binding.tvAdd.setOnClickListener(this);
        binding.llEdit.setOnClickListener(this);
        binding.tvSave.setOnClickListener(this);
    }

    public void clearText() {
        int index = binding.viewPager.getCurrentItem();
        showLoadingDialog(getString(R.string.loading_text), new LoadingDialog.DismissListener() {
            @Override
            public void dimiss() {
//                binding.ivPrevious.setEnabled(index != 0);
//                binding.ivNext.setEnabled(index != list.size() - 1);
            }
        });
        Log.i("clearText", list.get(index).getPath());
        String base64 = BitmapUtils.imageToBase64(list.get(index).getPath());
        NetWorks.removeWriting(base64, new Observer<JsonObject>() {
            @Override
            public void onSubscribe(Disposable d) {

            }

            @Override
            public void onNext(JsonObject jsonObject) {
                if (jsonObject != null && jsonObject.get("image_processed") != null) {
                    String image = jsonObject.get("image_processed").getAsString();
                    if (image != null) {
                        String filepath = context.getExternalFilesDir("images").getPath() + "/" + String.valueOf(System.currentTimeMillis()) + CommonUtil.getStr() + ".jpg";
                        CommonUtil.saveBitmapToUri(BitmapUtils.stringToBitmap(image), filepath);
                        list.get(index).setPath(filepath);
                        imageAdapter.notifyItemChanged(index);
                        cut(filepath);
                    } else {
                        loadFail("去除字迹失败");
                    }
                } else {
                    loadFail("去除字迹失败");
                }
            }

            @Override
            public void onError(Throwable e) {
                loadFail("去除字迹失败");
            }

            @Override
            public void onComplete() {

            }
        });
    }

    public void cut(String path) {
        String base64 = BitmapUtils.imageToBase64(path);
        Log.i("figLoaction", path);
        NetWorks.cut(base64, new Observer<CutPicBean>() {
            @Override
            public void onSubscribe(Disposable d) {

            }

            @Override
            public void onNext(CutPicBean cutPicBean) {
                if (cutPicBean != null) {
                    if (cutPicBean.getDirection() != 0) {
                        rotatingImage(cutPicBean);
                    } else {
                        if (cutPicBean.getQus_figure() != null && cutPicBean.getQus_figure().size() > 0) {
                            List<CutPicBean.FigLoaction> figLoactions = new ArrayList<>();
                            for (CutPicBean.CutLocation cutLocation : cutPicBean.getQus_figure()) {
                                figLoactions.add(cutLocation.getFig_location());
                            }
                            new Handler().postDelayed(new Runnable() {
                                @Override
                                public void run() {
                                    getRects(figLoactions);
                                }
                            }, 1000);
                        } else {
                            cancelLoadingDialog();
                        }
                    }
                } else {
                    loadFail("自动切题失败");
                }
            }

            @Override
            public void onError(Throwable e) {
                loadFail("自动切题失败");
            }

            @Override
            public void onComplete() {

            }
        });
    }

    private void getRects(List<CutPicBean.FigLoaction> figLoactions) {
        Log.i("figLoaction", new Gson().toJson(figLoactions));
        int index = binding.viewPager.getCurrentItem();
        List<ImageBean.Cut> cuts = new ArrayList<>();
        for (CutPicBean.FigLoaction figLoaction : figLoactions) {
            ImageBean.Cut cut = new ImageBean.Cut();
            cut.setRect(figLoaction);
            cut.setSelect(false);
            cuts.add(cut);
        }
        list.get(index).setCuts(cuts);
        imageAdapter.notifyItemChanged(index);
        cancelLoadingDialog();
    }

    private void rotatingImage(CutPicBean cutPicBean) {
        int index = binding.viewPager.getCurrentItem();
        Bitmap bitmap = BitmapFactory.decodeFile(list.get(index).getPath());
        int angle = 0;
        switch (cutPicBean.getDirection()) {
            case 1:
                angle = 90;
                break;
            case 2:
                angle = 180;
                break;
            case 3:
                angle = 270;
                break;
        }
        if (cutPicBean.getQus_figure() != null && cutPicBean.getQus_figure().size() > 0) {
            List<CutPicBean.FigLoaction> figLoactions = new ArrayList<>();
            for (CutPicBean.CutLocation cutLocation : cutPicBean.getQus_figure()) {
                figLoactions.add(cutLocation.getFig_location());
            }
            figLoactions = CommonUtil.rotaingLocation(angle, figLoactions, bitmap.getWidth(), bitmap.getHeight());
            bitmap = CommonUtil.rotaingImageView(angle, bitmap);
            String filepath = context.getExternalFilesDir("images").getPath() + "/" + String.valueOf(System.currentTimeMillis()) + CommonUtil.getStr() + ".jpg";
            CommonUtil.saveBitmapToUri(bitmap, filepath);
            list.get(index).setPath(filepath);
            imageAdapter.notifyItemChanged(index);
            List<CutPicBean.FigLoaction> finalFigLoactions = figLoactions;
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    getRects(finalFigLoactions);
                }
            }, 500);
        } else {
            cancelLoadingDialog();
        }
    }

    @Override
    protected ActivityImageBinding getViewBinding() {
        return ActivityImageBinding.inflate(getLayoutInflater());
    }

    @SuppressLint("SetTextI18n")
    public void refreshNum() {
        int num = 0;
        for (ImageBean imageBean : list) {
            if (imageBean.getCuts() != null && imageBean.getCuts().size() > 0) {
                for (ImageBean.Cut cut : imageBean.getCuts()) {
                    if (cut.isSelect()) {
                        num++;
                    }
                }
            }
        }
        String btnText = type == 0 ? "保存错题" : "录入题目";
        if (num > 0) {
            binding.tvSave.setEnabled(true);
            binding.tvSave.setBackgroundResource(R.drawable.bg_soild_blue_5);
            binding.tvSave.setText(btnText + "(" + num + ")");
        } else {
            binding.tvSave.setEnabled(false);
            binding.tvSave.setBackgroundResource(R.drawable.bg_soild_blue_light_5);
            binding.tvSave.setText(btnText);
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.iv_back:
                back();
                break;
            case R.id.iv_next:
                if (binding.viewPager.getCurrentItem() + 1 < list.size()) {
                    binding.viewPager.setCurrentItem(binding.viewPager.getCurrentItem() + 1);
                }
                break;
            case R.id.iv_previous:
                if (binding.viewPager.getCurrentItem() != 0) {
                    binding.viewPager.setCurrentItem(binding.viewPager.getCurrentItem() - 1);
                }
                break;
            case R.id.ll_edit:
                Intent intent = new Intent(context, ImageEditActivity.class);
                intent.putExtra("path", list.get(binding.viewPager.getCurrentItem()).getPath());
                startActivityForResult(intent, 1001);
                break;
            case R.id.tv_photo:
                Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                //确保有相机来处理Intent
                filePath = context.getExternalFilesDir("images").getPath() + "/" + String.valueOf(System.currentTimeMillis()) + CommonUtil.getStr() + ".jpg";
                File photoFile = new File(filePath);
                if (photoFile != null) {
                    //适配Android 7.0文件权限，通过FileProvider创建一个content类型的Uri
                    Uri photoUri = FileProvider.getUriForFile(activity, "com.hjx.parent.fileprovider", photoFile);
                    takePictureIntent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                    takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
                    activity.startActivityForResult(takePictureIntent, 1002);
                }
                break;
            case R.id.tv_add:
                Intent intent1 = new Intent(context, ImageSelectActivity.class);
                intent1.putExtra("path", list.get(binding.viewPager.getCurrentItem()).getPath());
                startActivityForResult(intent1, 1001);
                break;
            case R.id.tv_save:
                List<TopicBean> topicBeans = new ArrayList<>();
                for (ImageBean imageBean : list) {
                    if (imageBean.getCuts() != null && imageBean.getCuts().size() > 0) {
                        for (ImageBean.Cut cut : imageBean.getCuts()) {
                            if (cut.isSelect()) {
                                TopicBean bean = new TopicBean();
                                String path = context.getExternalFilesDir("images").getPath() + "/" + String.valueOf(System.currentTimeMillis()) + CommonUtil.getStr() + ".jpg";
                                BitmapUtils.saveBitmap(cut.getBitmap(), path);
                                bean.setPath(path);
                                topicBeans.add(bean);
                            }
                        }
                    }
                }
                save(topicBeans);
                break;
        }
    }

    private void save(List<TopicBean> topicBeans) {
        if (type == 0) {
            ErrorInputDialog dialog = new ErrorInputDialog(this, topicBeans);
            dialog.show();
        } else {
            List<String> paths = new ArrayList<>();
            for (TopicBean it: topicBeans) {
                paths.add(it.getPath());
            }
            if (addHomeworkDialog == null) {
                addHomeworkDialog = new AddHomeworkDialog(this);
            }
            addHomeworkDialog.show(paths, () -> {
                // TODO
            });
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1001) {
            if (resultCode == 1002) {
                if (list.size() > 1) {
                    list.remove(binding.viewPager.getCurrentItem());
                    imageAdapter.notifyItemRemoved(binding.viewPager.getCurrentItem());
                    binding.tvTitle.setText((binding.viewPager.getCurrentItem() + 1) + "/" + list.size());
                    refreshNum();
                } else {
                    finish();
                }
            } else if (resultCode == 1003) {
                int position = binding.viewPager.getCurrentItem();
                list.remove(position);
                String path = data.getStringExtra("path");
                ImageBean imageBean = new ImageBean();
                imageBean.setPath(path);
                list.add(position, imageBean);
                imageAdapter.notifyItemChanged(position);
                clearText();
                refreshNum();
            } else if (resultCode == 1004) {
                Rect rect = data.getParcelableExtra("cut");
                if (rect != null) {
                    int position = binding.viewPager.getCurrentItem();
                    ImageBean.Cut cut = new ImageBean.Cut();
                    cut.setRect1(rect);
                    cut.setSelect(false);
                    if (list.get(position).getCuts() != null) {
                        list.get(position).getCuts().add(cut);
                    } else {
                        List<ImageBean.Cut> cuts =new ArrayList<>();
                        cuts.add(cut);
                        list.get(position).setCuts(cuts);
                    }
                    imageAdapter.notifyItemChanged(position);
                    refreshNum();
                }
            } else if (resultCode == 1005) {
                int i = data.getIntExtra("position", 0);
                int position = binding.viewPager.getCurrentItem();
                Rect rect = data.getParcelableExtra("cut");
                if (rect != null) {
                    ImageBean.Cut cut = new ImageBean.Cut();
                    cut.setRect1(rect);
                    cut.setSelect(false);
                    list.get(position).getCuts().remove(i);
                    list.get(position).getCuts().add(i, cut);
                    imageAdapter.notifyItemChanged(position);
                    refreshNum();
                } else {
                    list.get(position).getCuts().remove(i);
                    imageAdapter.notifyItemChanged(position);
                    refreshNum();
                }
            }
        } else if (requestCode == 1002 && resultCode == RESULT_OK && !TextUtils.isEmpty(filePath)) {
            Bitmap b = BitmapUtils.compress(BitmapFactory.decodeFile(filePath));
            String path = context.getExternalFilesDir("images").getPath() + "/" + String.valueOf(System.currentTimeMillis()) + CommonUtil.getStr() + ".jpg";
            CommonUtil.saveBitmapToUri(b, path);
            int position = binding.viewPager.getCurrentItem();
            list.remove(position);
            ImageBean imageBean = new ImageBean();
            imageBean.setPath(path);
            list.add(position, imageBean);
            imageAdapter.notifyItemChanged(position);
            clearText();
            refreshNum();
        }
    }

    private void back() {
        showTipDialog("温馨提示", "是否确认退出？", "取消", "确定", new TipDialog.TipDialogInterface() {
            @Override
            public void onConfirm(Dialog dialog) {
                dialog.dismiss();
                finish();
            }

            @Override
            public void onCancel(Dialog dialog) {
                dialog.dismiss();
            }
        });
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            back();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
}