package com.topjohnwu.magisk;

import android.animation.Animator;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.preference.PreferenceManager;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.RecyclerView;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.WindowManager;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.topjohnwu.magisk.module.Module;
import com.topjohnwu.magisk.receivers.DownloadReceiver;
import com.topjohnwu.magisk.utils.Async;
import com.topjohnwu.magisk.utils.Shell;
import com.topjohnwu.magisk.utils.Utils;
import com.topjohnwu.magisk.utils.WebWindow;

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

import butterknife.BindView;
import butterknife.ButterKnife;

public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHolder> {

    private final List<Module> mList;
    private final List<Module> mListToUpdate = new ArrayList<>();
    List<Boolean> mExpandedList;
    @BindView(R.id.expand_layout)
    LinearLayout expandedLayout;
    private View viewMain;
    private Context context;
    private final Utils.ItemClickListener chboxListener;
    private final Utils.ItemClickListener deleteBtnListener;
    private final Utils.ItemClickListener unDeleteBtnListener;
    private boolean alertUpdate, ignoreAlertUpdate;

    public ModulesAdapter(List<Module> list, Utils.ItemClickListener chboxListener, Utils.ItemClickListener deleteBtnListener, Utils.ItemClickListener undeleteBtnListener) {
        alertUpdate = false;
        this.mList = list;
        mExpandedList = new ArrayList<>(mList.size());
        for (int i = 0; i < mList.size(); i++) {
            mExpandedList.add(false);
            if (mList.get(i).isUpdateAvailable()) {
                alertUpdate = true;
                mListToUpdate.add(mList.get(i));
            }
        }
        this.chboxListener = chboxListener;
        this.deleteBtnListener = deleteBtnListener;
        this.unDeleteBtnListener = undeleteBtnListener;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        viewMain = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_module, parent, false);
        context = parent.getContext();
        ButterKnife.bind(this, viewMain);
        return new ViewHolder(viewMain);
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, int position) {
        final Module module = mList.get(position);
        Log.d("Magisk", "ModulesAdapter: Trying set up bindview from list pos " + position + " and " + module.getName());
        Log.d("Magisk", "ModulesFragment: Log ID is " + module.getmLogUrl());
        if (module.isCache())
            holder.title.setText("[Cache] " + module.getName());
        else
            holder.title.setText(module.getName());
        holder.versionName.setText(module.getVersion());
        holder.description.setText(module.getDescription());
        holder.author.setText(module.getAuthor());
        String logUrl = module.getmLogUrl();
        String supportUrl = module.getSupportUrl();
        String donateUrl = module.getDonateUrl();
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        if (prefs.contains("ignoreUpdateAlerts")) {
            ignoreAlertUpdate = prefs.getBoolean("ignoreUpdateAlerts", false);
        }
        if (prefs.contains("repo-canUpdate_" + module.getId())) {
            if (prefs.getBoolean("repo-canUpdate_" + module.getId(), false)) {
                holder.updateStatus.setText(R.string.module_update_available);
                holder.updateStatus.setVisibility(View.VISIBLE);
            } else {
                holder.updateStatus.setVisibility(View.GONE);
            }

            if (alertUpdate && !ignoreAlertUpdate) {
                Iterator<Module> iterRepo = mListToUpdate.iterator();
                while (iterRepo.hasNext()) {
                    Module mModule = iterRepo.next();
                    DialogInterface.OnClickListener dialogClickListener = (dialog, which) -> {
                        switch (which) {
                            case DialogInterface.BUTTON_POSITIVE:
                                DownloadReceiver receiver = new DownloadReceiver() {
                                    @Override
                                    public void task(File file) {
                                        Log.d("Magisk", "Task firing");
                                        new Async.FlashZIP(context, mModule.getId(), file.toString()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                    }
                                };
                                String filename = mModule.getId().replace(" ", "") + ".zip";
                                Utils.downloadAndReceive(context, receiver, mModule.getmZipUrl(), filename);

                                break;

                            case DialogInterface.BUTTON_NEGATIVE:
                                ignoreAlertUpdate = true;
                                SharedPreferences.Editor editor = prefs.edit();
                                editor.putBoolean("ignoreUpdateAlerts", ignoreAlertUpdate);
                                editor.apply();
                                break;
                        }
                    };
                    AlertDialog.Builder builder;
                    String theme = PreferenceManager.getDefaultSharedPreferences(context).getString("theme", "");
                    if (theme.equals("Dark")) {
                        builder = new AlertDialog.Builder(context,R.style.AlertDialog_dh);
                    } else {
                        builder = new AlertDialog.Builder(context);
                    }
                    builder.setMessage("An update is available for " + mModule.getName() + ".  Would you like to install it?").setPositiveButton("Yes", dialogClickListener)
                            .setNegativeButton("No", dialogClickListener).show();
                    mListToUpdate.remove(mModule);
                }
            }
        }

        View.OnClickListener oCl = view -> {
            if (view.getId() == holder.changeLog.getId()) {
                new WebWindow("Changelog", module.getmLogUrl(), context);
            }
            if (view.getId() == holder.authorLink.getId()) {
                new WebWindow("Donate", module.getDonateUrl(), context);
            }
            if (view.getId() == holder.supportLink.getId()) {
                new WebWindow("Support", module.getSupportUrl(), context);
            }
        };

        holder.authorLink.setOnClickListener(oCl);
        holder.changeLog.setOnClickListener(oCl);
        holder.supportLink.setOnClickListener(oCl);
        holder.checkBox.setChecked(module.isEnabled());
        holder.checkBox.setOnCheckedChangeListener((compoundButton, b) -> chboxListener.onItemClick(compoundButton, holder.getAdapterPosition()));

        holder.delete.setOnClickListener(view -> {
            if (module.willBeRemoved()) {
                unDeleteBtnListener.onItemClick(holder.delete, holder.getAdapterPosition());
            } else {
                deleteBtnListener.onItemClick(holder.delete, holder.getAdapterPosition());
            }

            updateDeleteButton(holder, module);
        });

        updateDeleteButton(holder, module);
    }

    private void updateDeleteButton(ViewHolder holder, Module module) {
        holder.warning.setVisibility(module.willBeRemoved() ? View.VISIBLE : View.GONE);

        if (module.willBeRemoved()) {
            holder.delete.setImageResource(R.drawable.ic_undelete);
        } else {
            holder.delete.setImageResource(R.drawable.ic_delete);
        }
    }

    @Override
    public int getItemCount() {
        return mList.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder {

        @BindView(R.id.title)
        TextView title;

        @BindView(R.id.version_name)
        TextView versionName;
        @BindView(R.id.description)
        TextView description;
        @BindView(R.id.warning)
        TextView warning;
        @BindView(R.id.checkbox)
        CheckBox checkBox;
        @BindView(R.id.author)
        TextView author;
        @BindView(R.id.updateStatus)
        TextView updateStatus;
        @BindView(R.id.delete)
        ImageView delete;
        @BindView(R.id.changeLog)
        ImageView changeLog;
        @BindView(R.id.authorLink)
        ImageView authorLink;
        @BindView(R.id.supportLink)
        ImageView supportLink;
        @BindView(R.id.expand_layout)
        LinearLayout expandLayout;
        private ValueAnimator mAnimator;
        private int mMeasuredHeight;

        public ViewHolder(View itemView) {
            super(itemView);
            WindowManager windowmanager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
            ButterKnife.bind(this, itemView);
            DisplayMetrics dimension = new DisplayMetrics();
            windowmanager.getDefaultDisplay().getMetrics(dimension);

            expandLayout.getViewTreeObserver().addOnPreDrawListener(
                    new ViewTreeObserver.OnPreDrawListener() {


                        @Override
                        public boolean onPreDraw() {
                            expandLayout.getViewTreeObserver().removeOnPreDrawListener(this);
                            expandLayout.setVisibility(View.GONE);
                            final int widthSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
                            final int heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
                            expandLayout.measure(widthSpec, heightSpec);
                            mAnimator = slideAnimator(0, expandLayout.getMeasuredHeight());
                            return true;
                        }
                    });

            viewMain.setOnClickListener(view -> {
                int position = getAdapterPosition();
                Log.d("Magisk", "ReposFragment: CLICK. " + position + " and " + mExpandedList.get(position));

                if (mExpandedList.get(position)) {
                    collapse(expandLayout);
                } else {
                    expand(expandLayout);
                }
                mExpandedList.set(position, !mExpandedList.get(position));

            });
            if (!Shell.rootAccess()) {
                checkBox.setEnabled(false);
                delete.setEnabled(false);
            }
        }

        private void expand(View view) {

            // set Visible


            Log.d("Magisk", "ReposFragment: Expand anim called " + mMeasuredHeight + " and " + view.getId());
            view.setVisibility(View.VISIBLE);
            mAnimator.start();
        }

        private void collapse(View view) {
            int finalHeight = view.getHeight();
            ValueAnimator mAnimator = slideAnimator(finalHeight, 0);
            Log.d("Magisk", "ReposFragment: Collapse anim called " + finalHeight + " and " + view.getId());

            mAnimator.addListener(new Animator.AnimatorListener() {
                @Override
                public void onAnimationEnd(Animator animator) {
                    // Height=0, but it set visibility to GONE
                    view.setVisibility(View.GONE);
                }

                @Override
                public void onAnimationStart(Animator animator) {
                }

                @Override
                public void onAnimationCancel(Animator animator) {
                }

                @Override
                public void onAnimationRepeat(Animator animator) {
                }
            });
            mAnimator.start();
        }

        private ValueAnimator slideAnimator(int start, int end) {

            ValueAnimator animator = ValueAnimator.ofInt(start, end);

            animator.addUpdateListener(valueAnimator -> {
                // Update Height
                int value = (Integer) valueAnimator.getAnimatedValue();

                ViewGroup.LayoutParams layoutParams = expandLayout
                        .getLayoutParams();
                layoutParams.height = value;
                expandLayout.setLayoutParams(layoutParams);
            });
            return animator;
        }
    }
}