TubeLab-App-Android/app/src/main/java/app/fedilab/fedilabtube/drawer/InstanceAdapter.java

package app.fedilab.fedilabtube.drawer;
/* Copyright 2020 Thomas Schneider
 *
 * This file is a part of TubeLab
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * TubeLab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with TubeLab; if not,
 * see <http://www.gnu.org/licenses>. */


import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import app.fedilab.fedilabtube.R;
import app.fedilab.fedilabtube.client.entities.Instance;
import app.fedilab.fedilabtube.helper.RoundedBackgroundSpan;

import static android.app.Activity.RESULT_OK;
import static app.fedilab.fedilabtube.MainActivity.peertubeInformation;


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

    private List<Instance> instances;

    private Context context;

    public InstanceAdapter(List<Instance> instances) {
        this.instances = instances;
    }


    @NonNull
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        context = parent.getContext();
        LayoutInflater layoutInflater = LayoutInflater.from(context);
        return new ViewHolder(layoutInflater.inflate(R.layout.drawer_instance, parent, false));
    }

    @Override
    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int position) {
        final Instance instance = instances.get(position);
        final ViewHolder holder = (ViewHolder) viewHolder;

        if (instance.getShortDescription() != null && instance.getShortDescription().trim().length() > 0) {
            holder.description.setText(instance.getShortDescription());
            holder.description.setVisibility(View.VISIBLE);
        } else {
            holder.description.setVisibility(View.GONE);
        }

        holder.name.setText(instance.getName());
        holder.host.setText(instance.getHost());


        SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
        String between = "";
        LinkedHashMap<Integer, String> info_cat = new LinkedHashMap<>(peertubeInformation.getCategories());
        if (instance.getCategories() != null && instance.getCategories().size() > 0 && instance.getSpannableStringBuilder() == null) {
            Iterator<Map.Entry<Integer, Integer>> it = instance.getCategories().entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<Integer, Integer> pair = it.next();
                String cat = info_cat.get(pair.getKey());
                stringBuilder.append(between);
                if (cat != null && cat.trim().toLowerCase().compareTo("null") != 0) {
                    if (between.length() == 0) between = "  ";
                    String tag = "  " + cat + "  ";
                    stringBuilder.append(tag);
                    stringBuilder.setSpan(new RoundedBackgroundSpan(context), stringBuilder.length() - tag.length(), stringBuilder.length() - tag.length() + tag.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
                }
                it.remove();
            }
            instance.setSpannableStringBuilder(stringBuilder);
        }
        if( instance.getSpannableStringBuilder() != null) {
            holder.tags.setText(instance.getSpannableStringBuilder());
        }

        LinkedHashMap<String, String> info_lang = new LinkedHashMap<>(peertubeInformation.getLanguages());
        StringBuilder languages = new StringBuilder();
        if (instance.getLanguages() != null && instance.getLanguages().size() > 0) {
            Iterator<Map.Entry<Integer, String>> it = instance.getLanguages().entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<Integer, String> pair = it.next();
                languages.append(info_lang.get(pair.getValue())).append(" ");
                it.remove();
            }
        }

        if (languages.toString().trim().length() == 0) {
            holder.languages.setVisibility(View.GONE);
        } else {
            holder.languages.setText(languages);
            holder.languages.setVisibility(View.VISIBLE);
        }

        if (instance.getDefaultNSFWPolicy().compareTo("do_not_list") != 0) {
            holder.sensitive_content.setText(context.getString(R.string.sensitive_content, instance.getDefaultNSFWPolicy()));
            holder.sensitive_content.setVisibility(View.VISIBLE);
        } else {
            holder.sensitive_content.setVisibility(View.GONE);
        }
        holder.followers_instance.setText(context.getString(R.string.followers_instance, String.valueOf(instance.getTotalInstanceFollowers())));

        holder.pickup.setOnClickListener(v -> {
            Intent data = new Intent();
            String instanceHost = instance.getHost();
            data.setData(Uri.parse(instanceHost));
            ((Activity) context).setResult(RESULT_OK, data);
            ((Activity) context).finish();
        });
    }

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

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


    static class ViewHolder extends RecyclerView.ViewHolder {

        Button pickup;
        TextView name, host, description;
        TextView tags, followers_instance, languages, sensitive_content;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            pickup = itemView.findViewById(R.id.pickup);
            name = itemView.findViewById(R.id.name);
            host = itemView.findViewById(R.id.host);
            description = itemView.findViewById(R.id.description);
            followers_instance = itemView.findViewById(R.id.followers_instance);
            tags = itemView.findViewById(R.id.tags);
            languages = itemView.findViewById(R.id.languages);
            sensitive_content = itemView.findViewById(R.id.sensitive_content);
        }
    }
}